Гирокомпас yokogawa cmz 900 инструкция по эксплуатации

Features of CMZ900

✅ High north-seeking accuracy
High north-seeking accuracy is achieved because of the following configuration: The gyrosphere,
the heart of the gyrocompass, is supported in a container filled with liquid, which prevents disturbance from affecting the center pin. In addition, two gyro-rotors rotate at a high speed and work
with each other to cancel out errors due to the rolling, pitching and yawing of a ship.
✅ Excellent vibration resistance and shock resistance
A unique anti-vibration mechanism enhanced by the velocity damping effect of high viscous oil,
provides superior damping of vibration and decoupling of shock at sea.
✅ Improvement of follow-up performance
The container size is more reduced and it is realized more stabilized follow-up performance has
been achieved.
✅ Digitalization of Master compass heading
The master compass heading is displayed with digital numbers. It offers easy reading of the
heading.
✅ Automatic speed-error correcting function
Speed-error is corrected automatically by entering the ship’s speed signal and latitude signal respectively from the log and GPS or the like. The amount of latitude change in the case where there
is no latitude signal input is estimated from a calculation of the ship’s speed and heading. In a BType system, this function is implemented in the remote unit.
✅ Functions for various displays and settings
Various types of gyrocompass information can be displayed and set on the Master compass operation unit and remote unit.
✅ Preparation of outputs corresponding to every requirement
In addition to the digital heading signal output for the Repeater compass, the stepper heading
signal output, digital signal output (IEC61162-1/-2), analog heading, quadrant, and angular turning
velocity signal output are equipped as standard.
✅ Onboard battery drive
Compass running by the onboard battery is available as standard.
✅ Built-in startup timer
The restart time of the timer can be set from 1 to 99 hours.
✅ Heading output using external azimuth sensor signal
Using the heading signal from the external heading sensor (GPS compass, magnet compass, etc.)
signals can be output to external connecting device such as Repeater compasses or a radar.

CMZ900 — гирокомпас от японского производителя Yokogawa Denshikiki Co Ltd., сертифицированный Российским Речным Регистром (CMZ900B) и Российским морским регистром судоходства (CMZ900 B, S, D). Данная система предназначена для определения курса судна относительно географического (истинного) севера.

Конфигурация гирокомпаса CMZ900 может быть легко адаптирована под спецификацию любого судна. Версия CMZ900B предназначена для использования на маломерных судах; CMZ900S — на всех типах торговых судов; конфигурация CMZ900D представляет собой высоконадежную двойную (двухблочную) систему.

Причины купить CMZ-900:

• Сертификаты регистров: РМРС и РРР
• Компактное исполнение, экономящее место на судне
• Конфигурации для судов разных типов
• Уникальная антивибрационная система, значительно сокращающая воздействие вибрации и внешних сотрясений
• Возможность монтажа внутри стойки авторулевого (конфигурации S и D)
• Возможность установить время перезапуска от 1 ч до 99 ч
• Простота использования и обслуживания
• Ручная коррекция скоростной девиации
• Широкий выбор дополнительного оборудования для адаптации системы под требования каждого конкретного Заказчика

Чтобы купить гирокомпас CMZ900 или уточнить стоимость оборудования, обращайтесь к менеджерам нашего магазина по телефонам, указанным на сайте.

Цена, характеристики, внешний вид и комплектация товара могут быть изменены без предварительного уведомления.

• CMZ 900DGyrocompassUser’s Manual

  IM 80B10M-17E

  IM 80B10M-17E3rd Edition

• i

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  CONTENTSForeword…………………………………………………………………………………………………..vi1.
  Overview……………………………………………………………………………………….
  1-1

  1.1 Features of
  CMZ900………………………………………………………………………………1-11.2
  Gyrocompass
  System…………………………………………………………………………..1-31.3
  Device Composition
  Type……………………………………………………………………..1-41.4
  Connection with External
  Devices…………………………………………………………1-5

  1.4.1 Input Signal
  …………………………………………………………………………….1-5

  1.4.2 Output Signal
  ………………………………………………………………………….1-5

  1.5 Outline of Operation
  ……………………………………………………………………………..1-61.5.1
  Startup and
  Stoppage………………………………………………………………1-6

  1.5.2 Operation
  Unit…………………………………………………………………………1-6

  1.5.3 Normal
  Display………………………………………………………………………..1-7

  1.5.4 Output Heading
  Selection…………………………………………………………1-8

  1.5.5 Command Function
  …………………………………………………………………1-8

  1.6 Outline of Alarm
  ………………………………………………………………………………….1-101.6.1
  The Display When Alarm is Generated
  …………………………………….1-10

  1.6.2 Buzzer
  Stop…………………………………………………………………………..1-10

  1.6.3 Confirmation of Alarm
  Causes…………………………………………………1-10

  1.7 Maintenance and Inspection
  ……………………………………………………………….
  1-111.7.1 Daily
  Inspection……………………………………………………………………..
  1-11

  1.7.2 Regular
  Inspection…………………………………………………………………
  1-11

  1.8 Definition of
  Terms………………………………………………………………………………1-12

  2. Hardware
  ………………………………………………………………………………………
  2-12.1 Component Models
  ………………………………………………………………………………2-12.2
  Component Names and
  Functions………………………………………………………..2-3

  2.2.1 Master Compass [MKM026]
  …………………………………………………….2-3

  2.2.2 Control Box [MKC327]
  ……………………………………………………………2-4

  2.2.3 AC Adapter [MKS066/MKS071]
  ………………………………………………2-4

  2.2.4 Repeater Compass
  [MKR050]………………………………………………….2-5

  2.2.5 Junction Box [MKN019]
  ……………………………………………………………2-6

  2.2.6 Steering Repeater Compass
  [MKR056]…………………………………….. 2-6

  3.
  Operation………………………………………………………………………………………
  3-13.1 Startup and
  Stoppage……………………………………………………………………………3-1

  3.1.1 The Procedure of Startup and
  Stoppage……………………………………. 3-1

  CMZ900D GyrocompassUser’s Manual

  IM80B10M-17E 3rd Edition

• ii

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  3.1.2 Startup Sequence
  ……………………………………………………………………3-2

  3.1.3 Hot Start and Cold Start
  ……………………………………………………………3-3

  3.2 Operation Unit
  ………………………………………………………………………………………3-53.2.1
  The Name of Each Part of C.Operation Unit and Its
  Functions……… 3-6

  3.2.2 The Name of Each Part of M.Operation Unit and Its
  Functions …….. 3-8

  3.3 Display of Normal
  State……………………………………………………………………….3-103.4
  Command
  Mode………………………………………………………………………………….3-12

  3.4.1 The Classification of Command
  Functions………………………………..3-12

  3.4.2 Command Code List
  ………………………………………………………………3-13

  3.4.3 Operation in the Command Mode
  ……………………………………………3-15

  3.4.4 The Procedure for Changing the Value
  …………………………………….3-18

  4. Function Explanation and operation method
  ………………………………… 4-14.1 Display
  Functions…………………………………………………………………………………4-1

  4.1.1 Displaying
  Heading………………………………………………………………….4-2

  4.1.2 Displaying Heading
  Deviation……………………………………………………4-3

  4.1.3 Displaying Rate of
  Turn…………………………………………………………….4-4

  4.1.4 Displaying Running
  Time………………………………………………………….4-5

  4.1.5 Dimmer and Contrast Rank Display and Adjust
  ………………………….. 4-6

  4.1.6 Displaying Gyrosphere Phase
  Current………………………………………. 4-7

  4.1.7 Displaying Backup Battery
  Voltage…………………………………………….4-8

  4.1.8 Displaying Deviation Volatage
  …………………………………………………..4-9

  4.1.9 Dispalying Software Version
  Number……………………………………….4-10

  4.2 Setting
  Functions………………………………………………………………………………..4-134.2.1
  External Heading Input Selection
  …………………………………………….4-14

  4.2.2 Speed Setting for Speed Error
  Correction…………………………………4-15

  4.2.3 Latitude Setting for Speed Error Correction
  ………………………………4-16

  4.2.4 Automatic Alignment of Master Compass
  …………………………………4-17

  4.2.5 Manual Alignment of Master
  Compass……………………………………..4-19

  4.2.6 Setting the Master Compass Follow-up
  Gain…………………………….4-21

  4.2.7 Displaying/Resetting Cause of Master Compass
  Alarm…………………4-22

  4.2.8 Displaying/Resetting Cause of C.Operation Unit
  Alarm………………4-23

  4.2.9 Deviation Alarm
  Setting…………………………………………………………..4-24

  4.2.10 Startup Timer Setting
  ……………………………………………………………..4-25

  4.3 Maintenance
  Functions……………………………………………………………………….4-314.3.1
  Permission for Maintenance Function
  ………………………………………4-32

  4.3.2 Outputting Simulated DAC
  Signals…………………………………………..4-33

  4.3.3 Manual Drive of Master Compass
  ……………………………………………4-35

  4.3.4 Manual Drive of Repeater Compass
  ………………………………………..4-36

  4.3.5 Resetting Gyrosphere Running Time
  ……………………………………….4-37

  4.3.6 Resetting
  Log………………………………………………………………………..4-38

  4.3.7 Initializing Backup
  Memory……………………………………………………..4-39

  4.3.8 Correction of the Master Compass Installation Error
  ………………….4-40

• iii

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  4.3.9 Displaying Log
  ………………………………………………………………………4-43

  4.4 Generation
  Function……………………………………………………………………………4-544.4.1
  Permission for Generation
  Function…………………………………………4-55

  4.4.2 Setting the Follow-up Speed for Stepper
  Signal…………………………4-56

  4.4.3 Setting Communication Protocol of Output
  Port…………………………4-57

  4.4.4 Setting Format of Output
  Port………………………………………………….4-58

  4.4.5 Setting Format of Input
  Port…………………………………………………….4-63

  4.4.6 Miscellaneous
  ……………………………………………………………………….4-69

  4.5 Heading Signal
  Selection…………………………………………………………………….4-784.5.1
  Prohibition of Heading
  Changeover………………………………………….4-78

  4.5.2 Gyrocompass Heading Changeover
  Method……………………………………………4-79

  4.5.3 External Heading Changeover Method
  …………………………………….4-82

  4.6 «MUTE» Function of Alarm Sound
  ………………………………………………………4-83

  5. Troubleshooting
  ……………………………………………………………………………
  5-15.1 Advice for Specific
  Situations……………………………………………………………….5-15.2
  Alarm
  ……………………………………………………………………………………………………5-2

  5.2.1 The Display When Alarm has been Generated
  ………………………………. 5-2

  5.2.2 Confirmation of Error Factor
  ……………………………………………………..5-3

  5.2.3 Cancellation of
  Alarm……………………………………………………………….5-3

  5.2.4 Presumption Causes and Countermeasures
  ……………………………… 5-4

  5.3 Repeater Compass Error Contents and
  Countermeasures……………………. 5-85.3.1 The Display when
  Alarm has been Generated on the Repeater Compass

  5-8

  5.3.2 Procedure for Aligning Repeater Compass Indication
  …………………. 5-9

  6. Specifications
  ……………………………………………………………………………….
  6-16.1 Performance and
  Specifications……………………………………………………………6-1

  6.1.1 Power
  Supply………………………………………………………………………….6-1

  6.1.2 Input Signal
  …………………………………………………………………………….6-1

  6.1.3 Output Signal
  ………………………………………………………………………….6-1

  6.1.4 Setting Time and Accuracy
  ……………………………………………………….6-2

  6.1.5 Environmental Specifications (Normal Operating
  Conditions)………. 6-2

  6.1.6 External Input /Output Signal Specifications and Circuits
  …………….. 6-3

  6.2 Serial Input/Output Data Sentence
  ………………………………………………………..6-86.3
  Setting Dip Switches
  …………………………………………………………………………….6-96.4
  List of Initial
  Values……………………………………………………………………………..
  6-116.5 External Product
  View…………………………………………………………………………6-13

  7. Maintenance, Inspection and
  Installation……………………………………………………7-17.1
  Inspection
  …………………………………………………………………………………………….7-1

  7.1.1 Daily
  Inspection……………………………………………………………………….7-1

  7.1.2 Regular
  Maintenance……………………………………………………………….7-1

  7.2 Maintenance of the
  Gyrosphere…………………………………………………………….7-27.2.1
  Precautions During
  Removal…………………………………………………….7-2

• iv

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  7.2.2 Removing the
  Gyrosphere………………………………………………………..7-3

  7.2.3 Installing the
  Gyrosphere………………………………………………………….7-8

  7.2.4 Replacement of Lamps in the Repeater Compass
  …………………….7-14

  7.2.5 Replacing the
  Fuse………………………………………………………………..7-14

  7.2.6 Confirmation of System Operation
  …………………………………………..7-15

  7.2.7 Preparation of Supporting Liquid
  ……………………………………………..7-15

  7.3 Precautions During Installation
  …………………………………………………………..7-167.3.1
  Vibration
  Measures………………………………………………………………..7-16

  7.3.2 Parallelism of Lubber’s
  Lines…………………………………………………..7-16

  7.3.3 Service
  Area………………………………………………………………………….7-16

  Appendix-1 Description of Speed Error and Speed Error
  Table………………..A-11.1 Speed
  Error………………………………………………………………………………………….
  A-11.2 Determining Speed Error
  ……………………………………………………………………..
  A-1

  Appendix-2 Principle of Gyrocompass
  ……………………………………………………A-52.1
  Gyro…………………………………………………………………………………………………….
  A-52.2 North-seeking Tendency of
  Gyrocompass……………………………………………
  A-62.3 Gyrocompass
  Errors……………………………………………………………………………
  A-7

  2.3.1 Speed
  Error…………………………………………………………………………….A-7

  2.3.2 Acceleration Error
  ……………………………………………………………………A-7

  2.3.3 Rolling and Pitching Error
  …………………………………………………………A-7

  Appendix-3 Block
  Diagram……………………………………………………………………..A-8Appendix-4
  Components
  List………………………………………………………………..A-37

  4.1 Master Compass
  ………………………………………………………………………………..
  A-37(1) MKM026-1,4
  …………………………………………………………………………A-37

  (2) MKM026-2,3
  ………………………………………………………………………..A-39

  4.2 Control
  Box………………………………………………………………………………………..
  A-40(1) MKC327-F,W
  ………………………………………………………………………..A-40

  (2) MKC327-S
  ……………………………………………………………………………A-41

  4.3 Repeater Compass (MKR050)
  …………………………………………………………….
  A-424.4 Junction Box (MKN019)
  ……………………………………………………………………..
  A-434.5 Steering Repeater Compass
  (MKR056)……………………………………………….
  A-444.6 AC Adapter
  (MKS066)…………………………………………………………………………
  A-454.7 Dual AC Adapter (MKS071)
  …………………………………………………………………
  A-464.8 Junction Unit (MKN018)
  …………………………………………………………………….
  A-474.9 C.Operation Unit
  (MKR040)………………………………………………………………..
  A-47

  Appendix-5 Serial Signal Format
  …………………………………………………………..A-485.1
  Basic Format
  …………………………………………………………………………………….
  A-485.2 Existing
  Format………………………………………………………………………………….
  A-495.3 Heading Output for Repeater
  compass……………………………………………….
  A-52

• v

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  ForewordThank you for purchasing the Yokogawa Denshikiki
  Co.,Ltd. CMZ900 Gyrocompass.

  This manual describes the functions, operating procedures, and
  the handling precautions of the CMZ900 Gyrocompass. To ensure
  correct use, please read this manual thoroughly before beginning
  operation.

  � About this manual• This manual should be read by the end
  user.

  • Read this manual thoroughly and have a clear understanding of
  the product before operation.

  • After you have finished reading this User’s Manual, be sure to
  keep it at your side.

  • This manual explains the functions of the product. Yokogawa
  Denshikiki Co.,Ltd. does not guarantee that the product will suit a
  particular purpose of the user.

  • Copying or reproducing all or any part of the contents of this
  manual without the permission of Yokogawa Denshikiki Co.,Ltd. is
  strictly prohibited.

  • The contents of this manual are subject to change without
  prior notice.

  • Every effort has been made in the preparation of this manual
  to ensure the accuracy of its contents. However, should you have
  any questions or find any errors, please contact your nearest
  Yokogawa Denshikiki Co.,Ltd. dealer.

  � Trademarks• All the brands or names of Yokogawa Denshikiki
  Co.,Ltd.’s products used in this manual are

  either trademarks or registered trademarks of Yokogawa
  Denshikiki Co.,Ltd..

  • For purposes of this manual, the TM and ® symbols do not
  accompany their respective trade-mark names or registered trademark
  names.

  • Company and product names that appear in this manual are
  trademarks or registered trade-marks of their respective
  holders.

  � Safety precautions

  � Notes about environmental condition for using To use the
  CMZ900 Gyrocompass, keep the environment that satisfies
  “Specification” and “Equip-ment condition” of this product. See
  chapter 6 about specification of this products. And see section 7.3
  about precautions during installation. The details of precautions
  during installation is described in approval drawing.

  � Notes about installation• To install this products , follow
  the “Notes for installation” of approval drawing.

  • If reinstallation will be needed , contact your nearest
  service agent of Yokogawa Denshikiki Co., Ltd..

  � Notes about preparation before usingRead this manual
  thoroughly and have a clear understanding of the product before
  operation.

• vi

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  � Notes about using other than usageThis products are designed
  for gyrocompass for vessel. Do not use for other purpose.

  � Notes about maintenance and inspection• Regular inspection is
  recommended to keep this system good condition.

  • Do not detach the unit cover without the instruction of
  service engineer.

  • Contact your nearest service agent when the inspection which
  is not permitted in this manu-al is needed.

  � Notes about abnormal circumstances• When abnormal allophone or
  abnormal smell is generated from this product, turn off the

  power supply. After then deal with referring to this manual
  chapter 5. If it is impossible to deal, contact your nearest
  service agent of Yokogawa Denshikiki Co., Ltd..

  • Do not keep using the system , if dealing methods are unknown
  when the system is under abnormal condition.

  • Contact your nearest service or sales agent to repair the
  system.

  • When there is some instruction about the method of trouble
  shooting from service department of Yokogawa Denshikiki Co., Ltd. ,
  obey the instructions and work.

  � Notes about disposal of the productsWhen this product is
  scrapped , follow the regulations specified by each country.A
  lithium battery is used in this product. Before disposing ,
  insulate the both of terminals of lithium battery with insulation
  tape. Dispose of the lithium battery as industrial waste following
  the regula-tions.

  � Notes about disposal of the used supporting liquid• To dispose
  of used supporting liquid , please request processing to permitted
  industrial waste

  disposal trader.

  • Or contact your nearest service agent of Yokogawa Denshikiki
  Co., Ltd..

  � Precautions related to the protection, safety, and alteration
  of the product• The following safety symbols are used on the
  product and in this manual.

  «Handle with care.» To avoid injury and damage to the
  instrument, the operator must refer to the explanation in the
  manual.

  “Risk of Electric Shock”

  Protective ground terminal

  AC

  «High temperature.» To avoid injury caused by hot surface, do
  not touch locations where this symbol appears.

• vii

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  • For the protection and safe use of the product and the system
  controlled by it, be sure to follow the instructions and
  precautions on safety that are stated in this manual whenever you
  handle the product. Take special note that if you handle the
  product in a manner that violate these instructions, the protection
  functionality of the product may be damaged or impaired. In such
  cases, Yokogawa Denshikiki Co., Ltd. does not guarantee the
  quality, performance, function, and safety of the product.

  • When installing protection and/or safety circuits such as
  lightning protection devices and equip-ment for the product and
  control system or designing or installing separate protection
  and/or safety circuits for fool-proof design and fail-safe design
  of the processes and lines that use the product and the control
  system, the user should implement these using additional devices
  and equipment.

  • If you are replacing parts or consumable items of the product,
  make sure to use parts specified by Yokogawa Denshikiki Co.,
  Ltd..

  • Do not modify this product without instruction from service
  engineer of Yokogawa Denshikiki Co., Ltd. .

  � Exemption from responsibility• Yokogawa Denshikiki Co., Ltd.
  makes no warranties regarding the product except those

  stated in the WARRANTY that is provided separately.

  • Yokogawa Denshikiki Co., Ltd. assumes no liability to any
  party for any loss or damage, direct or indirect, caused by the
  user or any unpredictable defect of the product.

  � How to use this manualThe following markings are used in this
  manual.

  Improper handling or use can lead to injury to the user or
  damage to the instrument. This symbol appears on the instrument to
  indicate that the user must refer to the user’s manual for special
  instructions. The same symbol appears in the correspond-ing place
  in the user’s manual to identify those instructions. In the manual,
  the symbol is used in conjunction with the word “WARNING” or
  “CAUTION.”

  WARNINGCalls attention to actions or conditions that could cause
  serious or fatal injury to the user, and pre-cautions that can be
  taken to prevent such occurrences.

  CAUTIONCalls attentions to actions or conditions that could
  cause light injury to the user or damage to the instrument or
  user’s data, and precautions that can be taken to prevent such
  occurrences.

  NOTECalls attention to information that is important for proper
  operation of the instrument.

• viii

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  � Important Cautions

  WARNING

  Risk of Electric Shock

  Turn off the power before carrying out any wiring.

  CAUTION

  Do not perform an insulation resistance test using a megohmmeter
  except on the ship’s power terminals. Performing such a test may
  cause a failure in the gyro system.Precautions in handling the
  gyrosphere

  • Hold the gyrosphere firmly with both hands so as not to
  subject it to any shock.

  • Do not drop the gyrosphere. Dropping the gyrosphere may result
  in damage to the internal mechanism or lead to personal injury.

  • Do not disassemble the gyrosphere.

  Precautions in handling the container

  • Hold the container firmly with both hands.

  • Do not drop it. Dropping the gyrosphere may result in damage
  to the internal mechanism or lead to personal injury.

  Polishing of the slip ring is prohibited

  • Carry out cleaning by wiping dirt off the slip ring with ethyl
  alcohol or ligroin.

  � About the replacement parts for repair• After discontinuation
  of production, the possession period of the replacement parts is
  ten

  years.

  • The replacement parts for repair are the parts necessary to
  maintain the function of this prod-uct.

• ix

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  � Handling precautions

  � Startup of gyrocompass(1) Startup the gyrocompass at least 5
  hours before the ship’s departure.

  (2) After startup, do not touch the internal unit of the Master
  compass. Otherwise the equipment may be damaged or an error
  generated.

  � Handling in cold districtsSince the Master compass container
  containing the gyrocompass is filled with liquid, if a gyrocom-pass
  is to be stopped in a cold district where the ambient temperature
  is -3°C or less it should therefore be handled as shown below.

  (1) In the case where it is stopped for a period of a few days
  or less:

  Wrap the Master compass in a blanket or the like to provide heat
  insulation.

  (2) In the case of a prolonged stopping period (a week or
  more):

  Drain the liquid completely.

  � External heading out putExternal heading can use with the
  Master compass′s signal driver circuits. Turn on the main power of
  the Master compass (MKM026) in case of using external heading.

  NOTEThe external heading sensor is optional unit. If the
  external heading sensor is not installed or con-nected to
  gyrocompass, external heading signal can not be used.

  � Heading changeover Normally the heading signal is switched
  from other gyrocompass or external heading signal with operating
  key on the C.operation unit. In the following condition, it is not
  possible to switch.

  · Master compass is standing by to start.· The other sensor
  which is scheduled to switch is abnormal.· Exchanging the signal is
  prohibited.

  CAUTIONPlease execute the switch of heading signal between
  gyrocompass and external sensor in the safety area.

  NOTEWhen external heading signal is used at other systems of
  RADAR , ECDIS or etc. , the signal format should be fit for other
  system.

• x

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < Foreword >

  � G1/G2 gyro select switch on the changeover unitThe G1/G2 gyro
  select switch in control box should not be switched excluding the
  emergency (ex. Failure of C.operation unit). Normally use the G1/G2
  changeover switch in “NOR” position. If the G1/G2 changeover switch
  is used in excluding “NOR” position, the following phenomenon will
  occur.(1) An alarm is generated and unable to change heading signal
  The switch alarm (error code : 130) will occur. And even if gyro
  heading selection key or ex-

  ternal heading selection key is pushed, it is unable to change
  azimuth signal.(2) The stepper signals become asynchronously
  Because the stepper signals of two Mastercompass become
  asynchronously, the heading of

  the device which is using stepper signal will become
  disagreement.

  � Action method to heading changeover failureRefer to section
  4.5.2(2) when the heading changeover with an operation unit becomes
  impossible.

• 1-1

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1. OverviewThe CMZ900 Gyrocompass fully conforms to the
  technical requirements of the IMO resolu-tion A.424 (XI),
  gyrocompass performance standards, as well as to JIS F9602, Class A
  stand-ards. The anti-vibration structure has been strengthened and
  improvement of the follow-up performance has been achieved, leading
  to increased rigidity of the gyrocompass in all types of ships,
  from small to large.

  1.1 Features of CMZ900� High north-seeking accuracy

  High north-seeking accuracy is achieved because of the following
  configuration: The gyrosphere, the heart of the gyrocompass, is
  supported in a container filled with liquid, which prevents
  distur-bance from affecting the center pin. In addition, two
  gyro-rotors rotate at a high speed and work with each other to
  cancel out errors due to the rolling, pitching and yawing of a
  ship.

  � Excellent vibration resistance and shock resistanceA unique
  anti-vibration mechanism enhanced by the velocity damping effect of
  high viscous oil, provides superior damping of vibration and
  decoupling of shock at sea.

  � Improvement of follow-up performanceThe container size is more
  reduced and it is realized more stabilized follow-up performance
  has been achieved.

  � Digitalization of Master compass headingThe master compass
  heading is displayed with digital numbers. It offers easy reading
  of the heading.

  � Automatic speed-error correcting functionSpeed-error is
  corrected automatically by entering the ship’s speed signal and
  latitude signal re-spectively from the log and GPS or the like. The
  amount of latitude change in the case where there is no latitude
  signal input is estimated from a calculation of the ship’s speed
  and heading. In a B-Type system, this function is implemented in
  the remote unit.

  � Functions for various displays and settingsVarious types of
  gyrocompass information can be displayed and set on the Master
  compass op-eration unit and remote unit.

  � Preparation of outputs corresponding to every requirementIn
  addition to the digital heading signal output for the Repeater
  compass, the stepper heading signal output, digital signal output
  (IEC61162-1/-2), analog heading, quadrant, and angular turning
  velocity signal output are equipped as standard.

  � Onboard battery driveCompass running by the onboard battery is
  available as standard.

• 1-2

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  � Built-in startup timerThe restart time of the timer can be set
  from 1 to 99 hours.

  � Heading output using external azimuth sensor signalUsing the
  heading signal from the external heading sensor (GPS compass,
  magnet compass, etc.) signals can be output to external connecting
  device such as Repeater compasses or a radar.

• 1-3

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.2 Gyrocompass SystemThe CMZ900 Gyrocompass determine the
  ship’s heading using gyrosphere which is included in Master
  compass.The heading signal is displayed on operation unit, and is
  output to Repeater compass or external units.If any system failure
  will be occurred, the buzzer will sounds and the FAIL LED will
  blink.The gyrocompass system is composed of the following
  units;

  � Master compassThe Master compass is detect ship’s heading and
  calculate rate of turn.These signals are output to any units. The
  M.operation unit is included in this Master compass.

  � Repeater compass / Steering repeater compassThe Repeater
  compass is receive serial heading signal from Master compass, and
  indicates ship’s heading.

  � Control boxThe Control box is connected to Master compass and
  other external device. This unit drives each heading signals. This
  unit is used with D-Type.

  � Operation unitThe operation unit is used to control
  gyrocompass. There are two kinds of operation units. One is
  C.operation unit and the other is M. Operation Unit. C.operation
  unit is standard device in Type-S / D and optional device in
  Type-B.

  See chapter 2. for detail of system construction.

• 1-4

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.3 Device Composition TypeCMZ900 has 3 type systems. Each
  systems has different composition and specification. The sys-tem
  composition is described in chapter 2.

  � CMZ900B (Not explain in this manual)B-Type is composed of
  master compass, repeater compass and steering repeater compass.
  This type is used with a medium ship by a small ship.The automatic
  speed error correction is achieved using C. operation unit (option)
  and Junction unit (option). The backup of power supply is achieved
  using AC adapter (option).

  � CMZ900S (Not explain in this manual)S-Type is composed of
  master compass, control box, repeater compass and steering repeater
  compass. This type is used with a large ship by a medium ship. This
  type equips control box nor-mally and can execute the functions
  which are optional functions for CMZ900B. This type has many signal
  distribution drivers for external units.

  � CMZ900DD-Type is composed of two master compasses, control
  box, dual AC adapter, repeater compasses, steering repeater
  compass. This type is used with a large ship by a medium ship. This
  system al-ways observes errors by using the heading signal
  comparison data. If some error occurs on the system, it is possible
  to exchange heading signal from the one hand to the other hand by
  operat-ing the C. operation unit (software) or selector switch
  (hardware). This changeover function improves the reliability of
  the system.

• 1-5

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.4 Connection with External DevicesCMZ900 Gyrocompass has speed
  error correction using ship’s speed and position signal from
  external devices. The heading signal or external input signal is
  output to external devices such as Autopilot, Radar, Course
  Recorder and more.

  1.4.1 Input SignalThe following signals can be input from
  external devices to gyrocompass.

  Input signal External devices Signal formatShip’s speed signal
  E.M.Log, Doppler Log, GPS, etc. IEC61162-1 Serial , PulseLatitude
  signal GPS, etc. IEC61162-1 SerialHeading / Rate of turn signal
  Magnet compass , GPS compass, etc. IEC61162-1 Serial

  The setting of serial signal format is possible according to the
  generation command.See chapter 6 for specification of signal
  input.See chapter 4 to set signal format using generation
  command.

  1.4.2 Output SignalThe following signals can be output to
  external devices from gyrocompass.

  Output signal External devices Signal formatRepeater compass
  heading signal Repeater compass IEC61162-1 SerialStepper heading
  signal Radar, etc. 3Bit gray code

  Serial heading / Rate of turn signal Autopilot, Universal data
  display, etc. IEC61162-1 SerialAnalog heading / Rate of turn signal
  Course recorder, ROT Indicator, etc. Analog (0 to 5V)

  The setting of serial signal format is possible according to the
  generation command.See chapter 6 for specification of signal
  input.See chapter 4 to set signal format using generation
  command.

• 1-6

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.5 Outline of OperationThis section describes the operation of
  gyrocompass.

  1.5.1 Startup and StoppageThe gyrocompass starts when the main
  power supply is turned on. The Master compass starts North-seeking.
  The Repeater compasses receive heading signal and start display.The
  gyrocompass settles within 5 hours, and displays true heading.The
  gyrocompass stops when the main power supply is turned off. The
  detail of startup is described in section 3.1.

  1.5.2 Operation UnitThe gyrocompass is operated with the
  operation unit. Operation unit displays heading and the
  in-formation. And it is used for setting the gyrocompass. There are
  two kinds of operation units. One is C.operation Unit and the other
  is M.operation unit. C.operation unit is standard device in
  Type-S/D and optional device in Type-B. See section 3.2 for details
  of function and operation of operation unit.

  GYRO1 GYRO2

  GYRO1GYRO2

  EXT

  EXT

  COMMAND

  FAILBZ STOP SELECT

  ENT

  DIMMER / LAMP TEST

  GYROCOMPASS OPERATION UNIT

  Control box

  C.operation unit

  RUN

  EXT

  FAIL

  EXT

  ENT

  GYRO HEADING

  COMMAND DATA

  SET/DIMMER

  YOKOGAWA

  SHIFT▼ ▲

  UP COMMANDBZ STOP

  Master compass

  M.operation unit

• 1-7

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.5.3 Normal DisplayThe gyrocompass become to “Normal Mode”
  through the “Standby status” at startup.The operation unit displays
  the heading and status like at the standby.See section 3.3 for
  details of displays in “Normal Mode”.

  � Normal display on C.operation unitThe heading and system
  status are displayed on screen.

  GYRO 1

  GYRO 2

  EXT

  SPD.MANUAL

  +00[kt]

  LAT.MANUAL

  N 00[°]

  >123.4

  126.0

  STBY

  123.4

  ea in i pla

  S te tatu i pla

  Input et o

  Input alue

  � Normal display on M.operation unitThe heading is displayed on
  the heading display.(The displayed heading is not corrected speed
  error. So the displayed heading on M.operation unit might be
  different from the heading on C.operation unit or Repeater compass
  while the ship is navigating.)

  SHIFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO HEADING

  COMMAND DATA

  SET/DIMMER

  YOKOGAWAYo o a a Dens i i i Co. Lt

  Hea in isp a

• 1-8

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.5.4 Output Heading SelectionCMZ900D is composed of two Master
  compasses. If some error occurs on the system, it is possible to
  exchange heading signal between No.1 Gyrocompass and No.2
  Gyrocompass.And If external heading signal is input, gyro compass
  can select it. If master compass is damaged seriously, all output
  signals can be output by using the external signal.To select the
  heading, press the heading selection key.

  1.5.5 Command FunctionThe command for the setting is prepared in
  CMZ900.Call-up code for various data display/setting in the CMZ900
  Gyrocompass are assigned to the predetermined numbers (command
  code). Calling the command code, it is possible to achieve various
  function.Move to command mode from normal mode to use command
  function.See section 3.4 for detail of command function.

  � List of Command Function

  Clas-sifi-

  cationCommand

  code

  Operation unit Function item

  Execu-tion

  during standby

  Page

  C M

  Display Function

  ○ ○ Compass heading display ○ 3-10○ – True heading and system
  status display10 ○ – True heading and value of speed error
  correction dis-play ○ 4-211 ○ – Heading deviation display ○ 4-312 ○
  – Turn rate display ○ 4-413

  ○ ○ Gyro sphere running time display ○ 4-5○ – Total running time
  and the time after startup display14 ○ – Dimmer rank display ○
  4-615 ○ ○ Gyro-sphere phase current display ○ 4-716 ○ ○ Backup
  battery voltage display ○ 4-817 ○ – Deviation voltage display ○
  4-919 ○ ○ Software version number display ○ 4-10

  Setting Function

  20 ○ – External heading input selection ○ 4-1421 ○ ○ Speed
  setting for speed error correction ○ 4-1522 ○ ○ Latitude setting
  for speed error correction ○ 4-1623 ○ ○ Automatic alignment of
  Master compass × 4-1724 ○ ○ Manual alignment of Master compass ×
  4-1925 ○ ○ Setting the Master compass follow-up gain ○ 4-2126 ○ ○
  Displaying/resetting cause of Master compass alarm ○ 4-2227 ○ –
  Displaying/resetting cause of C.operation unit alarm ○ 4-2328 ○ –
  Deviation alarm setting ○ 4-2429 ○ – Startup timer setting ○
  4-25

• 1-9

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  Clas-sifi-

  cationCommand

  code

  Operation unit Function item

  Execu-tion

  during standby

  Page

  C M

  Maintenance Function

  30 ○ ○ Permission for maintenance function ○ 4-3231 ○ ○
  Outputting simulated DAC signals × 4-3332 ○ ○ Manual drive of
  Master compass ○ 4-3533 ○ ○ Manual drive of Repeater compass ○
  4-3634 ○ ○ Resetting gyrosphere running time ○ 4-3735 ○ ○ Resetting
  log ○ 4-3836 ○ ○ Initialization of backup memory ○ 4-3937 ○ ○
  Correcting Master compass installation error ○ 4-4039 ○ ○ Log
  display ○ 4-43

  Generation Function

  40 ○ ○ Permission for generation function ○ 4-5541 ○ ○ Setting
  the follow-up speed for stepper signal ○ 4-5642 ○ – Setting
  communication protocol of output port ○ 4-5743 ○ – Setting format
  of output port ○ 4-5845 ○ – Setting format of input port ○ 4-6349 ○
  – Miscellaneous functions ○ 4-69

  ○ : Means that execution is permitted × : Means that execution
  is not permitted

  – : Means that the function is not Implemented.

• 1-10

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.6 Outline of AlarmIf abnormal condition occurs on gyrocompass,
  an alarm is generated.

  1.6.1 The Display When Alarm is GeneratedWhen an alarm is
  generated, the buzzer sounds and the alarm LED blinks.The error
  code and the cause of the alarm are displayed on the screen of
  C.operation unit.

  The error message disappears by pushing the command key.

  1.6.2 Buzzer StopPressing the buzzer-stop key stops the
  buzzer.

  1.6.3 Confirmation of Alarm CausesThe alarm LED goes out if the
  alarm is reset, but continues to light up if the alarm
  continues.The check procedure when the alarm is generated is
  described to Chapter 5.

  GYRO 1

  GYRO 2

  EXT

  GYRO FAILED!

  G1:CODE= 010

  Gyro current

  excess

  —.-

  >126.0

  HDG FLT

  123.4

  GYRO 1

  GYRO 2

  EXT

  GYRO FAILED!

  G1:CODE= 010

  Gyro current

  excess

  —.-

  >126.0

  HDG FLT

  123.4

• 1-11

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.7 Maintenance and InspectionImplement the following procedures
  of the daily inspection and regular inspection to main-tain the
  gyrocompass in a state of normal working order:

  1.7.1 Daily InspectionThe inspection items are as follows.

  Inspection Item Inspection Contents and Procedure
  RecommendedInspection Interval

  1Gyrosphere drive current Check that the current is within the
  range 0.15 A

  to 0.35 A by executing the command code “15”. (See section
  4.1.6)

  Once/day (at an arrival)

  2 Repeater compass align-mentCheck that the heading of each
  Repeater com-pass agrees with that of the Master compass.
  Once/departure

  3Ship’s speed value Latitude Check that there are no errors in
  ship’s speed

  and latitude by executing the command codes “21” and “22”. (See
  section 4.2.2 and 4.2.3)

  Once/day

  4 Azimuth error Check that there is no azimuth error using
  astro-nomical or physical target observation. Once/day

  5

  DC Battery input Check that the DC input voltage of AC Adapter
  (MKS066/MKS071) are regulated voltage. MKS066 : TB1 3-4 and 23-24
  MKS071 : TB1 3-4 and TB2 3-4

  Once/year

  NOTECheck the readings of the Repeater compass card when the
  ship’s speed is set to “0.” If a speed-

  1.7.2 Regular InspectionPerform the following maintenance once a
  year.

  NOTEOrder to the Service Department of Yokogawa Denshikiki Co.,
  Ltd. for regular inspection.

  Inspection Item Procedure1 Gyrosphere Cleaning of the lower and
  band electrode .

  2 Container Cleaning of inside surface ,center pin (Exercise
  care when handling.) , lower electrode ,band electrode, follow-up
  electrode.3 Supporting Liquid Replacement of supporting liquid4 Air
  filter Cleaning of the air filter. (Replace the air filter when
  remarkably dirty.)

• 1-12

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 1.Overview >

  1.8 Definition of TermsThis section describes the definition of
  terms used in this manual.

  Compass heading The heading detected by the master compass

  True heading The heading obtained by subtracting the value of
  the speed error correction from the compass headingValue of
  speed-error correction The error calculated from the ship’s
  heading, speed and latitude

  Output headingA heading output to external connected device
  (such as repeater compasses).Either the gyro heading or external
  sensor heading should be selected.

  Gyro heading True heading

  External sensor heading A heading to be input from external
  heading sensors (such as magnet compass/GPS compass and the
  like)

• 2-1

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  2. Hardware2.1 Component Models

  CMZ900D are composed following units. The units are selected for
  the usage.

  � CMZ900D System Configuration

  INMARSATRADARGPS . . .et

  AUTO PILOTIBSINS . . .et

  M R M R

  X22 AX2 1A X21

  M N 1

  M R1 1A/1 1A M R 2

  M M 2M C 2

  M S /M S 1

  M M 2

  Conne tion Box

  ori ontal Bra et Tiltin Bra et ori ontal Stan

  Repeater Co pa Sterrin Repeater Co pa

  Serial Si nal or Repeater Co pa

  Cour e Re or er RATE OF TURN

  STEPPER SIGNAL

  Serial Si nalIEC 11 2 1

  Analo to

  MASTER COMPASS

  No.1 Po er Suppl 2 DC

  No.1 Po er Suppl 1 to 22 AC /

  No.2 Po er Suppl 2 DC

  2 DC Po er Suppl

  No.2 Po er Suppl 1 to 22 AC /

  AC A apter

  De i e to be onne te

  MASTER COMPASS Control Box

  C.operationUnitM R

• 2-2

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  � Component Models

  M M 2 1 M T

  CMZ D

  M M 2

  M M 2

  M C 2 F

  M C 2 S

  M C 2

  M R G X22 A

  M N 1 G X2 1A

  X21

  M R P X22 A

  M N 1 P X2 1A

  X21

  M R

  M S /MKS071

  M R

  M R 2

  M R 2

  M R 2

  M R 2

  M R 2

  G ro o pa

  Ma ter o pa

  Control box

  Repeater o pa

  SteerinRepeater o pa

  C.Operation Unit

  AC A apter

  Stan Alone t pe

  Pilot tan t pe

  Con ole t pe

  Flu ount t pe

  Pilot tan t pe

  all ount t pe

  Glan t pe

  Plu t pe

  Conne tionbox

  ori ontal tan

  ori ontal tan

  ori ontal bra et

  ori ontal bra et

  Tiltin bra et

  Tiltin bra et

  G ro p ere

  S it Unit

  S it Unit

  M.Operation Unit

  M.Operation Unit

  M.Operation Unit

  Conne tionbox

• 2-3

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  2.2 Component Names and Functions2.2.1 Master Compass
  [MKM026]

  Master compass detects ship’s heading.

  � Master Compass Stand Alone TypeThis master compass is stand
  alone type which includes components to exclusive case.

  Switch unit

  M.operation unit

  Container with Gyrosphere

  See section 3.2.2 for name of each part of M.operation unit and
  its functions.

  � Pilot Stand typeThis type includes gyro compass units into
  stand.

  C.operation Unit

  M.operation Unit

  Container with gyrosphere

  Fuse

  No.1 power switch

  No.2 power switch

  External output power switch

  Gyro select switch

  Autopilot Stan

  See section 3.2.1 for name of each part of C. operation unit and
  its functions.

  � Console TypeThis type is used to be included into ship’s
  bridge console. This type master compass has plate and rails for
  drawing it out.

• 2-4

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  2.2.2 Control Box [MKC327] The Control box distributes heading
  signals and power to other units and receives signals from other
  units. The Control box equips C.operation unit on the front cover
  and equips power switches and terminals into the box.

  GYRO1 GYRO2

  GYRO1GYRO2

  EXT

  EXT

  COMMAND

  FAILBZ STOP SELECT

  ENT

  DIMMER / LAMP TEST

  GYROCOMPASS OPERATION UNIT

  Front

  In i e

  ront co er

  C.operation unituse

  o. ower switch

  o. ower switch

  Gyro se ect switch

  terna output power switch

  er ina oar

  The Control box has three kinds of structures which are wall
  mount type, flush mount type and built-in Pilot stand type.See
  section 3.2.1 for name of each part of C.operation unit and its
  functions.

  2.2.3 AC Adapter [MKS066/MKS071] This unit supplies DC power to
  master compass.

  M M 1

  Front ieInsi e ie

  Fuse

  ower switch

  er inal loc

  Front co er

  Fuse

  ower switch

• 2-5

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  2.2.4 Repeater Compass [MKR050]The repeater compass receives a
  heading signal from the master compass, indicates the true
  heading.

  ointer

  Sca e e ree /roun

  Sca e 1 e ree /roun

  Top ie

  Si e ie

  Sha ow pin ountin ho e

  ori onta stan

  ori onta rac et

  i tin rac et

  unction o

  er ina u

  Connector

  NOTEIf the heading of repeater compass has errors, check and
  adjust it referring to chapter 5.

• 2-6

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 2.Hardware >

  2.2.5 Junction Box [MKN019]This unit receives heading signal and
  power from Master compass and drives Repeater compass. It is used
  to adjust dimmer.

  ai in icator reT i i lit or blin en an error i ete te .Nor all
  it i o .

  un in icator reenT i blin en ero a u t ent i bein arrie out. Nor
  all it i lit.

  ero a ust ent switchU e en t ere a been a i t in t e alue in i
  ate b t e Repeater o pa .

  i er controTurnin t i ial a u t t e illu ination o t e o pa aran
  run in i ator .

  G an or ConnectorConne t to Repeater o pa .

  G anConne t to Ma ter o pa or ontrol box.

  2.2.6 Steering Repeater Compass [MKR056]

  DIMMER

  FAIL

  RUN SYNC

  ointer

  cale 1 egrees roun

  cale egrees roun

  i er controlTurnin t is ia a usts t e i umination o t e
  compasscar an run in icator E .

  Fail in icator E

  un in icator E

  ero a ust ent switch

• 3-1

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3. OperationThis chapter describes the operation of the CMZ900
  Gyrocompass system.

  3.1 Startup and StoppageNOTE

  Startup the gyrocompass at least 5 hours before the ship’s
  departure.

  3.1.1 The Procedure of Startup and StoppageConfirm the presence
  of power supply for the system at startup.

  � The operation on the Control box and Autopilot stand.The
  gyrocompass is started up and stopped by operating the main power
  switch in the Control box or Autopilot stand. The power switch is
  placed at right hand in the Control box or Autopilot stand. For
  startup, locate the toggle switch to ON side. For stoppage, locate
  the toggle switch to OFF side.

  In i e o t e Autopilot tan

  In i e o t e ontrol box

  o. ower switch

  o. ower switch

  terna output power switch

  o. power switch

  o. power switch

  terna outputpower switch

• 3-2

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.1.2 Startup SequenceThe following processes are passed until
  gyro sphere is stabilized and true heading is output.

  Po er OnMain it i turne on

  Repeater o pa po er ONStepper ROT po er ON

  Zero a u t ent o Ma tero pa

  t e Ma ter o pa i ollo e ro p ere ea in

  Zero a u t ent o Repeatero pa

  Output in al are tarte

  T e Repeater o pa an tepper i nal ea in ollo e

  to Ma ter o pa ea in

  T e ro p ere ea in i ettle an t e te output true ea in

  about our

  about 2 inute

  about 1 inute

  Supplie po er to te an t e rotator in ro p ere i tarte to
  rotate.

  T e Ma ter o pa tart ero a u t ent en t e p a e urrent i lo er t
  an . A an t ere olution o rotator o e on tant.

• 3-3

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.1.3 Hot Start and Cold Start

  � Flow diagram

  Turn on ea o t e ip AC an DCpo er upplie or t e ro o pa te .

  Turn on t e ain po er it .

  I AC po er i not upplie to t ete turn on DC po er onl .

  Re olution o t e ro p ere rotor i i .→P a e urrent i i er t an .
  A

  Re olution o t e ro ere rotor i lo .→P a e urrent i . A or
  le

  Col tart ot tart

  ･S te tatu STBY･T e ollo up operation o t e Ma ter o pa top
  .･Ali nin operation i pro ibite .･P a e urrent e rea e blo . A an
  en it rate o an e be o e lo t e o pa enter no al operatin tatu
  .

  Nor al tatu ・S te tatu blan

  T e ro o pa enter nor al operation tatu i e iatel .

  Start up the gyrocompass at least 5 hours before performing
  normal operation.After the power switch is turned on, the
  gyrocompass system is started up at either hot start or cold start
  depending on the condition of the gyro-sphere.If the gyro rotor is
  rotating at a high enough speed to detect the heading, hot start
  begins, however, if it is rotating at a speed that is too low to
  detect the heading, cold start begins.The rotating status of the
  gyro rotor is determined by monitoring the phase current.

• 3-4

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  � Hot startHot start begins if the value of the phase current
  immediately after turning on the power is 0.35 A or less and
  follow-up of Master compass, signal input/output, and indicator
  LEDs are normal.

  � Cold startCold start begins if the value of the phase current
  immediately after turning on the power is higher than 0.35 A. The
  stand-by state continues until the phase current drops and the rate
  of change in the phase current drops below a specified level.
  Normal operation will start when these requirements are met. During
  stand-by, functions of Master compass automatic aligning and manual
  aligning cannot be carried out. After about 2 hours, the heading
  becomes to practical and gyrocompass is ready for operation.

  0.35A

  Nor al

  P a e urent

  Ti e

  0.35A

  Nor al

  P a e urent

  Ti e

  0.35A

  Time

  NormaSTAND BY

  P ase curent0.35A

  Time

  NormaSTAND BY

  P ase curent

• 3-5

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.2 Operation UnitThe gyrocompass is operated with the operation
  unit. Operation unit displays heading and the in-formation. And it
  is used for setting the gyrocompass. There are two kinds of
  operation units. One is C.operation Unit and the other is
  M.operation unit.

  � C.operation unitThe C.operation unit is equipped on the front
  door of Control box or Autopilot stand. The operation unit is used
  for operating the Master compass and setting the communication port
  to connect with the external devices. It is possible to shift
  operation right to M.operation unit.

  GYRO1 GYRO2

  GYRO1GYRO2

  EXT

  EXT

  COMMAND

  FAILBZ STOP SELECT

  ENT

  DIMMER / LAMP TEST

  GYROCOMPASS OPERATION UNIT

  Control box

  C.operation unit

  � M.operation unitThe M.operation unit is equipped on the front
  panel of Master compass (Stand alone type / Console type). The
  M.operation unit is used for operating the Master compass which is
  connected with. Some commands can not be operated with M.operation
  unit. (Refer to section 3.4.2)

  RUN

  EXT

  FAIL

  EXT

  ENT

  GYRO HEADING

  COMMAND DATA

  SET/DIMMER

  YOKOGAWA

  SHIFT▼ ▲

  UP COMMANDBZ STOP

  Master compass

  M.operation unit

• 3-6

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  � The operation mode of operation unitThe operation units have
  two mode. The one mode is used for displaying the azimuth data and
  system status. This mode is named «Normal mode».The other mode is
  used for displaying the detail information and setting the system.
  This mode is named «Command mode».

  COMMAND

  C.operation Unit

  COMMAND

  BZ STOP

  M.operation Unit

  PreCOMMAND e

  PreCOMMAND e

  Nor al Mo e

  Co an Mo e

  Di pla in t e ea in Di pla in t e te tatu Di pla in t e ata to u
  e pee error orre tion C.operation unit

  Exe utin t e o an Di pla un tion Settin un tion Maintenan e un
  tion Generation un tion

  3.2.1 The Name of Each Part of C.Operation Unit and Its
  Functions

  This section describes the name of each part of C.operation unit
  and its functions.

  � The name of each part

  GYRO GYRO

  GYROGYRO

  EXT

  EXT

  COMMAND

  FAILBZ STOP SELECT

  ENT

  DIMMER / LAMP TEST

  GYROCOMPASS OPERATION UNIT

  Hea in isp a area Data isp a area A arm LED anBu er stop e

  Se ect LED anse ect e

  Arro e s

  ENT eComman e

  Dimmer e

  E terna ea inse ection e

  G ro ea in se ection e

• 3-7

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  � The function of each part

  � Heading displayDisplays a compass heading and system
  status.

  � Data displayIndicates displays corresponding to menus and each
  command code.

  � Alarm LED and buzzer stop key Displays alarm statuses for the
  gyrocompass system.

  If pressed when an alarm is generated, the alarm buzzer is
  stopped.

  � Select LED and Select key Displays and selects the operating
  initiative (C.operation unit or M.operation unit). keep the

  key pressed for at least two seconds.

  When LED is lit, this unit can be operated.

  When LED goes off, M.operation unit can be operated.

  � Arrow key Carry out selection of commands and data and
  switching of displays.

  ENT keyEnters and sets commands and data.

  COMMAND key If pressed when in normal mode, the display switches
  from the data display to the MAIN

  MENU.

  If pressed when the display is in access mode, the display
  returns to normal mode.

  � Dimmer key Adjusts brightness of the displays of this
  unit.

  In addition, if this key is pressed in combination with the ENT
  key, contrast of the LCD can be adjusted.

  If both keys are simultaneously pressed, a lamp test is
  performed.

  � External heading selection key Changes the output heading to
  that of the external heading (bow heading input from external

  heading sensor). keep the key pressed for at least two
  seconds.

  Gyro heading selection key If GYRO1 key is pressed, the output
  heading is changed to the gyro heading (true heading of

  the No.1 master compass).

  If GYRO2 key is pressed, the output heading is changed to the
  gyro heading (true heading of the No.2 master compass).

  keep the key pressed for at least two seconds.

  If key �, � or is to be operated, keep the key pressed for at
  least two seconds.

  NOTEThe back-light of external heading selection key is not lit
  on system that the external-input is not available.

• 3-8

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.2.2 The Name of Each Part of M.Operation Unit and Its
  Functions

  This section describes the name of each part of M.operation unit
  and its functions.

  NOTEIf the C.operation unit has operation rights ,the
  M.operation unit can not be operated. To operate the M.operation
  unit, press the selection key on the C.operation unit and turn off
  the selection LED.

  � The name of each part

  ON

  OFFPO ER

  GYROCOMPASS

  RUN

  EXT

  FAIL

  EXT

  ENT

  GYRO EADING

  COMMAND DATA

  SET/DIMMER

  YO OGA AYo o a a Den i i i Co. Lt .

  S IFT▼ ▲

  UP COMMANDBZ STOP

  Po er it External ea in ele tor it

  Set/Di er e Co an /Bu er top e

  ENT e

  Data i pla area

  G ro ea in i pla area

  RUN in i ator LEDEXT in i ator LEDFAIL in i ator LED Co an o e i
  pla area

  � The function of each part

  � Power switch Turns on/off the power to the gyro system.

  � External heading selector switch If the switch is kept pressed
  for 2 seconds or more when in normal mode, the output heading

  (gyro heading/external heading) is selected.

  When the C.operation unit is used, this switch isn’t used.

  � Set/dimmer key In normal mode these are dimmer keys that
  adjust the level of brightness of all displays on the

  M.operation unit. The displays can be darkened by pressing the ▼
  key and brightened by pressing the ▲ key. Brightness can be
  adjusted in 32 steps.

  If two keys are simultaneously pressed, a lamp test is
  performed.

  If the key is pressed in command selection mode or command
  execution mode, data is input. Pressing the SHIFT key changes the
  input digit (blinks) while pressing the UP key changes the numeric
  value in the input digit.

• 3-9

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  � Command/buzzer stop key If this key is pressed in normal mode,
  the mode changes to the command selection mode, and

  if pressed in command selection mode or command execution mode,
  the mode returns to normal.

  If pressed when an alarm is generated, the alarm buzzer and
  blinking of the FAIL indicator LED stops.

  � ENT keyEnters an input value in command selection mode or
  command execution mode. To carry out operations with this key
  switch, keep it pressed for 2 seconds.

  Data display area Displays/sets data when a command is
  executed.

  Gyro heading display areaDisplays a compass heading.

  � Command code display areaDisplays a command code.

  � RUN indicator LED Lights up when the power switch is turned
  “on.”

  EXT indicator LED Goes out when the currently selected output
  heading is the gyro heading and lights up when

  the output heading is the external sensor heading.

  �11 FAIL indicator LED Blinks when an alarm is generated.

  If the “BZ STOP” key is pressed, it lights up during an alarm
  and goes out when the alarm is restored to normal.

• 3-10

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.3 Display of Normal StateDisplays of the operation unit at
  startup (normal state) will be described below.

  � Displays of the C.operation unit at normal stateThe heading
  display indicates true headings of each heading sensor and system
  status, and the data display indicates input method and input value
  of ship’s speed and ship’s position (the figure on the right is an
  example of this display).

  � Heading displayThe true heading of the No.1 master compass is
  displayed in the first line (GYRO 1), the true head-ing of the No.2
  master compass is displayed in the second line (GYRO 2) and the
  heading of ex-ternal heading sensor is displayed in the third line
  (EXT) of the heading display.The display is blank for heading
  values not connected to this C. operation unit.The true heading
  whose heading value is ineffective is displayed with «- — — . — «.
  ( i.e. signal input error.)For the heading sensor that is selected,
  «>» is displayed immediately before the heading.To switch to
  another heading sensor, press the external heading selector key or
  the gyro heading selector key (cannot be selected to an unconnected
  compass).

  � System status displayThe gyro system status is displayed in
  the bottom line of the heading display. The system status at normal
  running is not shown and the display is blank.

  System Status

  STBY Displayed when No.1 and No.2 master compass is in stand-by
  status.G1 STBY Displayed when No.1 master compass is in stand-by
  status.G2 STBY Displayed when No.2 master compass is in stand-by
  status.HDG FLT Displayed when there is a failure with the azimuth
  sensor that is selected.

  PWR FLT (*1)Displayed when there is a failure of the No1 and No2
  AC power supply to the system equipped with the DC backup system.
  This indication is held even if an AC power supply recovers.
  In-dication disappears when a COMMAND key is pushed.

  PWR1FLT (*1)Displayed when there is a failure of the No1 AC
  power supply to the system equipped with the DC backup system. This
  indication is held even if an AC power supply recovers. Indication
  disappears when a COMMAND key is pushed.

  PWR2FLT (*1)Displayed when there is a failure of the No2 AC
  power supply to the system equipped with the DC backup system. This
  indication is held even if an AC power supply recovers. Indication
  disappears when a COMMAND key is pushed.

  C/O FLT Displayed when the automatic changeover is not
  possible.

  GYRO 1

  GYRO 2

  EXT

  SPD.MANUAL

  +00[kt]

  LAT.MANUAL

  N 00[°]

  >123.4

  126.0

  STBY

  123.4

  Hea in isp a

  S stem status isp a

  Input met o

  Input a ue

  GYRO 1

  GYRO 2

  EXT

  SPD.MANUAL

  +00[kt]

  LAT.MANUAL

  N 00[°]

  >123.4

  126.0

  STBY

  123.4

  Hea in isp a

  S stem status isp a

  Input met o

  Input a ue

• 3-11

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  C/O PRF Displayed when the changeover operation is not
  permitted.ALIGN Displayed during heading change over. (From
  gyrocompass to gyrocompass)

  COP1FLT Displayed when the main power supply of changeover BD
  ASSY is abnormal.COP2FLT Displayed when the sub power supply of
  changeover BD ASSY is abnormal.

  MUTE Displayed when the mute function of alarm sound is
  enable.*1: This indication is held even if an AC power supply
  recovers. Indication disappears when a COMMAND key is pushed.

  � Input methodThere are displayed the method of input for speed
  and latitude.

  MANUAL The value is set manually.AUTO The value is input from
  external sensor.

  � Input valueThe values to correct the speed error is
  displayed.

  � Displays of the M.operation unit at normal mode

  � Heading displayThe gyro heading display shows a compass
  heading, in-dications in the command and data displays
  disappear.

  � System status displayDuring standby the gyro heading dispaly
  indicates the compass heading when the power was last turned off ,
  and the data display indicates “C.S.” .

  S IFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO EADING

  COMMAND DATA

  SET/DIMMER

  YO OGA AYo o a a Den i i i Co. Lt

  S IFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO EADING

  COMMAND DATA

  SET/DIMMER

  YO OGA AYo o a a Den i i i Co. Lt

  SHIFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO HEADING

  COMMAND DATA

  SET/DIMMER

  YOKOGAWAYo o a a Dens i i i Co. Lt

  SHIFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO HEADING

  COMMAND DATA

  SET/DIMMER

  YOKOGAWAYo o a a Dens i i i Co. Lt

• 3-12

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.4 Command ModeThis section describes the functions which are
  achieved in command mode and the procedures to execute.

  3.4.1 The Classification of Command FunctionsThe command
  functions are classified into following four types.

  � The displaying functionThe displaying function is used for
  displaying various information.

  � The setting functionThe setting function is used for setting
  and adjusting to using the gyro compass properly.

  � The maintenance functionThe maintenance function is used for
  maintaining and operation verification when the system is rigged or
  regular inspection. This function is not used for normally. The
  system will request to input password when this function is
  used.

  � The generation functionThe generation function is used for
  setting to connect external units.This function is not used for
  normally. The system will request to input password when this
  function is used.

  See chapter 4 for the operation procedure of each functions.

  Column:Each functions are assigned individual command code. The
  command function is a generic name of the function that can be
  achieved by operating these command codes.

• 3-13

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.4.2 Command Code ListThis section shows the list of command
  codes assigned for each function.Some functions can not be operated
  when gyrocompass is standing by.See chapter 4 for the operation
  procedure of each functions.

  NOTESome commands can not be operated with M.operation unit.
  Refer to the following table for the executable commands on the
  M.operation unit.

  � Command code list

  Clas-sifi-

  cationCommand

  code

  Operation unit Function item

  Execution during

  standbyPage

  C M

  Display Function

  ○ ○ Compass heading display ○ 3-10○ – True heading and system
  status display10 ○ – True heading and value of speed error
  correction dis-play ○ 4-211 ○ – Heading deviation display ○ 4-312 ○
  – Turn rate display ○ 4-413

  ○ ○ Gyro sphere running time display ○ 4-5○ – Total running time
  and the time after startup display14 ○ – Dimmer rank display ○
  4-615 ○ ○ Gyro-sphere phase current display ○ 4-716 ○ ○ Backup
  battery voltage display ○ 4-817 ○ – Deviation voltage display ○
  4-919 ○ ○ Software version number display ○ 4-10

  Setting Function20 ○ – External heading input selection ○ 4-1421
  ○ ○ Speed setting for speed error correction ○ 4-1522 ○ ○ Latitude
  setting for speed error correction ○ 4-1623 ○ ○ Automatic alignment
  of Master compass × 4-1724 ○ ○ Manual alignment of Master compass ×
  4-1925 ○ ○ Setting the Master compass follow-up gain ○ 4-2126 ○ ○
  Displaying/resetting cause of Master compass alarm ○ 4-2227 ○ –
  Displaying/resetting cause of C.operation unit alarm ○ 4-2328 ○ –
  Deviation alarm setting ○ 4-2429 ○ – Startup timer setting ○
  4-25

• 3-14

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  Clas-sifi-

  cationCommand

  code

  Operation unit Function item

  Execution during

  standbyPage

  C M

  Maintenance Function

  30 ○ ○ Permission for maintenance function ○ 4-3231 ○ ○
  Outputting simulated DAC signals × 4-3332 ○ ○ Manual drive of
  Master compass ○ 4-3533 ○ ○ Manual drive of Repeater compass ○
  4-3634 ○ ○ Resetting gyrosphere running time ○ 4-3735 ○ ○ Resetting
  log ○ 4-3836 ○ ○ Initialization of backup memory ○ 4-3937 ○ ○
  Correcting Master compass installation error ○ 4-4039 ○ ○ Log
  display ○ 4-43

  Generation Function

  40 ○ ○ Permission for generation function ○ 4-5541 ○ ○ Setting
  the follow-up speed for stepper signal ○ 4-5642 ○ – Setting
  communication protocol of output port ○ 4-5743 ○ – Setting format
  of output port ○ 4-5845 ○ – Setting format of input port ○ 4-6349 ○
  – Miscellaneous functions ○ 4-69

  ○ : Means that execution is permitted × : Means that execution
  is not permitted

  – : Means that the function is not Implemented.

• 3-15

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.4.3 Operation in the Command ModeTo execute the commands shift
  to “Command Mode”. This section describes about “Command Mode”.

  � Operation on C.operation unitPress the command key to shift
  the “Command Mode”. After then an menu appears on the data display
  area. The commands are executed by selecting the menu item.Press
  the command key to return to the Normal Mode from the Command
  Mode.

  � Accessing Menus

  (1) Rough classification menuIf the command key is pressed when
  in normal mode, the MAIN MENU appears in the data dis-play (the
  figure on the right).The item that is selected blinks. (The
  blinking part is called the cursor.)Select an item by moving the
  position of the cur-sor with the up and down arrow keys.

  If the down arrow key is pressed when the cursor resides in the
  bottom line, the displayed menu shows the next page.If the up arrow
  key is pressed when the cursor resides in the top line, the
  displayed menu shows the preceding page.To return to normal mode
  from the display thus accessed, press the COMMAND key.

  (2) Medium classification menuSelect “1 Display” from the MAIN
  MENU and press the ENT key. The MAIN MENU switches to the Disp.MENU
  (as shown in the figure on the right).

  Select “2 Operate” from the MAIN MENU and press the ENT key. The
  MAIN MENU switches to the Operat.MENU (as shown in the figure on
  the right).

  GYRO 1

  GYRO 2

  EXT

  MAIN MENU

  1 Display

  2 Operate

  3 Maintain

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  MAIN MENU

  2 Operate

  3 Maintain

  4 Generate

  >123.4

  126.0

  123.4

  123.4

  GYRO 1

  GYRO 2

  EXT

  MAIN MENU

  1 Display

  2 Operate

  3 Maintain

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  MAIN MENU

  2 Operate

  3 Maintain

  4 Generate

  >123.4

  126.0

  123.4

  123.4

  GYRO 1

  GYRO 2

  EXT

  Disp.MENU

  10 HDG

  11 DEV

  12 ROT

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  Operat.MENU

  20 EXT SEL

  21 SPD SET

  22 LAT SET

  >123.4

  126.0

  123.4

  123.4

  GYRO 1

  GYRO 2

  EXT

  Disp.MENU

  10 HDG

  11 DEV

  12 ROT

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  Operat.MENU

  20 EXT SEL

  21 SPD SET

  22 LAT SET

  >123.4

  126.0

  123.4

  123.4

• 3-16

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  Select “3 Maintain” from the MAIN MENU and press the ENT key.
  The MAIN MENU switches to the Maint.MENU (as shown in the figure on
  the right).

  Select “4 Generate” from the MAIN MENU and press the ENT key.
  The MAIN MENU switches to the Generat.MENU (as shown in the figure
  on the right).

  � Flow of accessing menus

  ENT

  SPD.MANUAL +00[kt] LAT.MANUAL N 00[°]

  MA N MENU1 D2 O t3 M t

  MA N MENU1 D2 O t3 M t

  MA N MENU1 D2 O t3 M t

  MA N MENU2 O t3 M t4 G t

  MA N MENU2 O t3 M t4 G t

  MA N MENU2 O t3 M t4 G t

  ENT ENTENT

  D .MENU10 DG11 DE12 ROT

  O t.MENU20 EXT SEL21 SPD SET22 LAT SET

  M t.MENU30 P

  G t.MENU40 P

  ENT ENT ENT ENT

  OMMAND

  Nomaisp a

  Me iumc assi icationmenu

  Rouc assi icationmenu

  Disp a menu Operation menu Maintenance menu Generation menu

  To isp a in ea in To e terna ea ininput se ectionTo pass or
  input ormaintenance mo e

  To pass or input oreneration mo e

  GYRO 1

  GYRO 2

  EXT

  Maint.MENU

  30 Password

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  Generat.MENU

  40 Password

  >123.4

  126.0

  123.4

  123.4

  GYRO 1

  GYRO 2

  EXT

  Maint.MENU

  30 Password

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  Generat.MENU

  40 Password

  >123.4

  126.0

  123.4

  123.4

• 3-17

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  � Operation on M.operation unitThis paragraph describes the
  operation procedures on the M.operation unit.Press the command key
  to shift the “Command Mode”.Press the command key to return to the
  Normal Mode from the Command Mode.

  � Operation flowPress the command key to shift the “Command
  Mode”. After then the code number “00” appears and blinks on the
  command code display area. Input the command code for executing the
  com-mand. Press the ENT key 2 times each 2 seconds or more for
  command decision. (If command code number is less than 20, press
  ENT key 1 time.)

  COMMAND DATA

  COMMANDBZ STOP

  COMMAND DATA

  U P▲

  S IFT▼

  U P▲

  COMMAND DATA

  COMMAND DATA

  ENT

  COMMANDBZ STOP

  blin in

  1 Nor al o e

  2 Co an ele tion o e

  Co an ex ution o e

  T e alue o pla e o ten be o e 1 .

  T e blin in o e to pla e o one.

  T e alue o pla e o one be o e .

  Pu ENT e 2 ti e ea 2 e on or ore.

  Pu UP e ti e .blin in

• 3-18

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 3.Operation >

  3.4.4 The Procedure for Changing the ValueThis section describes
  the procedure for changing the set value.

  � The procedure on C.operation unitThe set value is changed
  using arrow keys on the C.operation unit. The set value is fixed by
  press-ing ENT key.

  � The item selection operation

  I t e 1I t e 2I t e I t e . . .

  Set alueen i pre e T e pre iou ite i ele te .

  en i pre e T e next ite i ele te .

  � The setting value input operation

  1

  2

  3

  4

  5

  6

  W en is presse T e pre ious item is se ecte .

  W en is presse T e cursor mo e to ne t p ace.

  W en is presse T e ne t item is se ecte .

  W en is presse T e cursor mo e to pre ious p a

  Set a ue

  It is same procedure to input alphabet.

  � The procedure on M.operation unitThe set value is changed
  using SHIFT and UP keys on the M.operation unit. The set value is
  fixed by pressing ENT key.

  � The item selection operation

  …

  Set a ue

  UP▲T e ne t item is se ecte e er pressin t e e .

  � The setting value input operation

  …

  UP▲

  SHIFT▼

  Set a ue

  W en is presse t e in in p ace mo es to t e ne t.

  T e ne t a ue is se ecte e er pressin t e e .

• 4-1

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 4.Function Explanation and operation method >

  4. Function Explanation and operation method

  This chapter describes the functions of CMZ900D. The operation ,
  the adjusting and the setting methods of gyrocompass which are
  executed by using the commandfunctions are described in section
  4.1, 4.2, 4.3 and 4.4. The heading exchange functionis described in
  section 4.5. The mute function of alarm sound is described in
  section 4.6.

  Refer to the chapter 3 for the procedure of executing the
  command function. And execute these operation with enough
  understanding

  4.1 Display FunctionsThis section describes how to display
  various information.

  The following 9 items can be displayed.

  CommandCode

  Operation Unit Function Item

  Execution during

  StandbyPage

  C M○ ○ Compass heading display ○ 3-10○ – True heading and system
  status display

  10 ○ – True heading and value of speed error correction dis-play
  ○ 4-211 ○ – Heading deviation display ○ 4-312 ○ – Turn rate display
  ○ 4-413

  ○ ○ Gyro sphere running time display ○ 4-5○ – Total running time
  and the time after startup display14 ○ – Dimmer rank display ○
  4-615 ○ ○ Gyro-sphere phase current display ○ 4-716 ○ ○ Backup
  battery voltage display ○ 4-817 ○ – Deviation voltage display ○
  4-919 ○ ○ Software version number display ○ 4-10

  ○ : Means that execution is permitted × : Means that execution
  is not permitted

  – : Means that the function is not Implemented.

  Each functions are executed by operating of the C.operation unit
  or the M.operation unit.

  See the section 3.2 for the operation unit.See the section 3.4
  for the command function.See the section 3.4.4 for the value input
  method.

• 4-2

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 4.Function Explanation and operation method >

  4.1.1 Displaying HeadingCOMMAND CODE :10

  This function displays the true heading , the compass heading,
  and the value of speed error correction .

  � Operation with the C.operation UnitSelecting “10 HDG” from the
  Disp.MENU and pressing the ENT key switches to the display showing
  the heading.

  Each true heading, compass heading and speed error correction
  (only for master compasses)of the No.1 master compass (GYRO1), No.2
  mas-ter compass (GYRO2), and external unit (EXT) are displayed in
  the first,Pressing the right and left arrow keys switches the
  display between true heading, compass heading and the value of
  speed error correc-tion.The upper, middle and lower figure on the
  right is an example of displaying the true heading (True HDG),
  compass heading (Compass HDG) (*1) and the value of speed error
  correction (SPD Error).If the command key is pressed, the screen
  re-turns to normal mode.

  *1: The «Compass HDG» displayed on operation unit is the value
  which corrected with master compass installation error.

  � Operation with the M.operation unitNOTE

  It is not possible to execute this function with the M.operation
  unit.

  S IFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO EADING

  COMMAND DATA

  SET/DIMMER

  YO OGA AYo o a a Den i i i Co. Lt

  S IFT

  RUNEXTFAIL

  U P

  EXT

  COMMANDBZ STOP ENT

  GYRO EADING

  COMMAND DATA

  SET/DIMMER

  YO OGA AYo o a a Den i i i Co. Lt

  GYRO 1

  GYRO 2

  EXT

  123.4°

  True HDG

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  122.9°

  Compass HDG

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  -00.5°

  SPD Error

  >123.4

  126.0

  123.4° 123.4

  122.9° 123.4

  -00.5° 123.4

  GYRO 1

  GYRO 2

  EXT

  123.4°

  True HDG

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  122.9°

  Compass HDG

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  -00.5°

  SPD Error

  >123.4

  126.0

  123.4° 123.4

  122.9° 123.4

  -00.5° 123.4

• 4-3

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 4.Function Explanation and operation method >

  4.1.2 Displaying Heading DeviationCOMMAND CODE : 11

  This function displays the heading deviation between gyrocompass
  heading and external heading. The unit of display is degree(s).

  � Operation with the C.operation UnitSelecting «11 DEV» from the
  Disp. MENU and pressing the ENT key switches to the display showing
  the heading deviation.Deviation values of each azimuth sensor based
  on the heading currently being output are dis-played.

  The figures on the right show examples of dis-playing the
  heading deviations .

  If the command key is pressed, the screen re-turns to normal
  mode.

  NOTEThe deviation between gyrocompass and external signal is not
  displayed when external signal is not input.

  � Operation with the M.operation unit

  NOTEIt is not possible to execute this function with the
  M.operation unit.

  GYRO 1

  GYRO 2

  EXT

  G2 G1 00.2

  D t

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  G1 G2 00.2

  D t

  123.4

  126.0

  E G2 02.4

  G1 E 02.6

  >123.6

  GYRO 1

  GYRO 2

  EXT

  G1 E 02.4

  D t

  123.4

  >126.0

  G2 E 02.6

  G2 G1 00.2

  123.6

  E G1 02.6

  G2 E 02.4

  123.6

  GYRO 1

  GYRO 2

  EXT

  G2 G1 00.2

  D t

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  G1 G2 00.2

  D t

  123.4

  126.0

  E G2 02.4

  G1 E 02.6

  >123.6

  GYRO 1

  GYRO 2

  EXT

  G1 E 02.4

  D t

  123.4

  >126.0

  G2 E 02.6

  G2 G1 00.2

  123.6

  E G1 02.6

  G2 E 02.4

  123.6

• 4-4

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 4.Function Explanation and operation method >

  4.1.3 Displaying Rate of TurnCOMMAND CODE : 12

  This function displays the Rate of Turn. There are two kinds of
  units of display. One is “degree(s)/second”, the other hand is
  “degree(s)/minute”.

  � Operation with the C.operation UnitSelecting “12 ROT” from the
  Disp. MENU and pressing the ENT key switches to the display showing
  the rate of turn.Each turn rate for No.1 master compass and No.2
  master compass are displayed in the first and second line of the
  display ,respectivelyIf the right and left arrow keys are pressed,
  the display for rate of turn units can be changed from
  degrees/minute to degrees/second.The upper figure on the right
  shows an example of displaying a rate of turn in degrees/minute and
  the lower figure on the right, an example of displaying a rate of
  turn in degrees/second.

  � Operation with the M.operation unit

  NOTEIt is not possible to execute this function with the
  M.operation unit.

  GYRO 1

  GYRO 2

  EXT

  123.4°

  ROT

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  12.34°

  ROT

  >123.4

  126.0

  123.4° 123.4

  12.34° 123.4

  GYRO 1

  GYRO 2

  EXT

  123.4°

  ROT

  >123.4

  126.0

  GYRO 1

  GYRO 2

  EXT

  12.34°

  ROT

  >123.4

  126.0

  123.4° 123.4

  12.34° 123.4

• 4-5

  IM80B10M-17E 3rd Edition : Sep.1,2009-00

  < 4.Function Explanation and operation method >

  4.1.4 Displaying Running TimeCOMMAND CODE : 13

  This function displays the total running time of Master compass,
  the running time of gyrosphere and the run-ning time after
  startup.

  � Operation with the C.operation UnitSelecting “13 Run Time”
  from the Disp.MENU and pressing the ENT key switches to the display
  showing the running time.

  The first line (G1), second line (G2), and third line (OP)
  indicate the running time of No. 1 master compass, No. 2 master
  compass, and the op-eration unit, respectively.

  If the right and left arrow keys are pressed, the display can be
  switched between the total run-ning time, gyrosphere running time,
  and time after startup.

  The upper, middle and lower figures on the right show examples
  of displaying total running time (Total time), gyrosphere running
  time (Gyro time) and the time after startup (Power time)
  respec-tively.

  � Operation with the M.operation unit

  NOTEThe M.operation unit displays the gyrosphere-running-time
  only .

  Running hours of the current gyrosphere is displayed (from
  000000 to 999999 hours).If the command code “13” is executed, the
  upper two digits of the six digits of the gyrosphere running time
  are displayed in the data display.If the SHIFT key is pressed, the
  middle two digits of the six digits are displayed, and if the SHIFT
  key is pressed once more the lower two digits of the six dig-its
  with a decimal point after the least significant digit are
  displayed.If for example, the running time of the gyrosphere is
  1952 hours, the digits “00” → “19” → “52.” will be displayed.→ “19”
  → “52.” will be displayed. “19” → “52.” will be displayed.→ “52.”
  will be displaye