INSTRUCTION MANUAL SIMRAD GC80/85 COMPACT Gyro Compass 20221511C English
Simrad GC80/GC85 Compact Gyro Compass Document revisions Rev Date A 19.12.03 B 17.02.05 C 05.12.05 Written by Checked by Approved by Document history ii Rev. A First issue. Rev. B Updated for new software release (Master compass: V.1.03, Control unit: V.1.04). Rev. C New procedure for how to adjust true heading, updated dimensions for remote panel, other minor updates to text throughout the manual.
INSTRUCTION MANUAL About this manual This manual is intended as a reference guide for installing, operating and maintaining Simrad GC80 and GC85 Compact Gyro compasses. The manual assumes that the operator is a qualified ship officer, or is under supervision of a qualified person. In this manual, references to buttons on the operator panels are written in boldface, but in a different text style (e.g. SET button, DISP button, GYRO button).
Simrad GC80/GC85 Compact Gyro Compass This manual is divided in the following sections: 1. System overview An overview of the GC80/GC85 Compact gyro system and it’s components. 2. User interface Overview of GC80 Compact Control unit and the user interface. 3. Operation Main operating procedures for using the GC80/GC85 Compact Gyro compass. 4.
INSTRUCTION MANUAL Contents 1 2 SYSTEM OVERVIEW...........................................................1 1.1 Introduction.......................................................................2 1.2 Precaution in use ................................................................3 1.3 System components............................................................4 1.4 Bearing repeaters ...............................................................4 USER INTERFACE ...............................
Simrad GC80/GC85 Compact Gyro Compass Balancing the Horizontal ring ........................................ 29 4.8 Replacing the Fuses .......................................................... 30 Master Compass.......................................................... 30 Compact Control unit ................................................... 30 Power Supply Unit (Option) .......................................... 32 5 INSTALLATION................................................................33 5.
INSTRUCTION MANUAL 7.5 Physical Dimensions.......................................................... 67 GC80 Master Compass ................................................. 67 GC80 Compact Control Unit .......................................... 67 GC80 Power Supply unit (option)................................... 67 7.6 Power ............................................................................. 67 GC80/85 Master Compass ............................................ 67 GC80 Compact Control Unit .
Simrad GC80/GC85 Compact Gyro Compass Main power failure ....................................................... 98 Internal power failure in Control unit.............................. 99 Inverter failure ........................................................... 99 Zero cross failure ........................................................ 99 System communication failure .................................... 100 GPS communication or data failure ..............................
SYSTEM OVERVIEW 1 SYSTEM OVERVIEW This section provides an overview of GC80 and GC85 Compact Gyro compasses and their components.
Simrad GC80/GC85 Compact Gyro Compass 1.1 Introduction GC80 and GC85 Compact Gyro compasses have been designated for any size of vessels to enhance the navigation capabilities and reliability. The gyro compasses eliminate the inconvenience and limitations of magnetic compasses, and provide a variety of electrical outputs to supply accurate and consistent heading information to other navigational equipment. - A GC80 Compact gyro is designed for vessels with speed up to 30 knots.
SYSTEM OVERVIEW 1.2 Precaution in use The GC80/GC85 Compact Gyro compass displays and outputs bearing information. Although the system continually checks for faults while the system is running, failures or malfunctions may occur. Any errors in input information will generate an alarm. These errors may also cause large jumps in the output bearing from the gyro compass.
Simrad GC80/GC85 Compact Gyro Compass 1.3 System components A GC80/GC85 Compact Gyro compass includes the following units: - Master Compass with Sensitive Element - Compact Control unit - Power Supply unit (Option) COMPACT CONTROL UNIT SPEED GPS 24V DC POWER INPUT EXTERNAL HEADING SENSOR 4 x NMEA from Ship’s Supply or from the optional POWER SUPPLY UNIT 24V DC 1 x 24V STEP POWER SUPPLY UNIT (OPTION) MASTER COMPASS 110/220V AC Note! 1.4 For details, refer TECHNICAL SPECIFICATION, page 63.
USER INTERFACE 2 USER INTERFACE This section gives an overview of the GC80 Compact Control unit and the user interface.
Simrad GC80/GC85 Compact Gyro Compass 2.1 GC80 Compact Control unit The Control unit includes the control panel for the gyro compass. A flush mount kit (part number 27101757) may be ordered from Simrad for remote installation of the control panel. Refer Flush mounting the control panel, page 35. ^i^oj dvol buq afpm pbq afj i^jm qbpq ^`h bkq pfjo^a=d`UM POWER Button mltbo Used for switching the gyro system ON. The button will be lit to indicate that power is applied to the system.
USER INTERFACE DISP Button Used for displaying data on the LCD. Refer Displaying present settings, page 13. afpm SET Button Used for changing data and input systems. Refer System start-up and software configuration, page 47 onwards. pbq ACK/ENT Button Used for confirming a change in data and input systems. Refer System start-up and software configuration, page 47 onwards. ^`h bkq The button is also used for acknowledging an alarm as described in Acknowledging an alarm, page 20.
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OPERATION 3 OPERATION This section describes the main operating procedure used when operating the GC80/GC85 Compact Gyro compass.
Simrad GC80/GC85 Compact Gyro Compass 3.1 System Start-up and Shut-down A GC80/GC85 Compact gyro system is usually left with power on. If the system has to be shut down and restarted, the procedures in the following sections should be followed. Start-Up Caution Before the gyrocompass is turned into normal operation, it has to be configured according to the description in System startup and software configuration, page 47 onwards. Turn ON the gyro system by pressing the POWER button on the Control panel.
OPERATION 5 The indicated start bearing is accepted by pressing the ACK/ENT button, or increased/decreased by using the arrow buttons and then pressing the ACK/ENT button. If no action is taken within 3 minutes, the start-up process will continue with the indicated start bearing. The bearing indication stops flashing when the start bearing is accepted, while the lamp remains flashing. 6 The rotor will now start rotating, and reaches pre-described number of revolutions after maximum 30 minutes.
Simrad GC80/GC85 Compact Gyro Compass 3.2 Selecting active compass If an external heading sensor is connected to GC80/GC85, it is possible to switch between gyro and external heading sensor as active steering sensor. The gyro system will normally be used with the gyro compass selected as active compass. An external heading sensor should only be used as active compass when the gyro compass not is working properly.
OPERATION 3.4 Displaying present settings afpm When pressing the DISP button on the GC80 Control unit, the system will loop through a display sequence showing present settings for the system.
Simrad GC80/GC85 Compact Gyro Compass afpm Latitude for the vessel’s current position. Value indicated as North (n) or South (s) latitude NORTH LATITUDE afpm afpm SOUTH LATITUDE Vessel speed. GPS, Manual, Log or Serial Log may be selected as speed input system Rate of turn in °/min. Error codes (up to 4), and error indication.
OPERATION 3.5 Confirming present settings After the GC80 is configured according to the System start-up and software configuration, described in page 47 onwards, it should not be necessary to adjust any settings when operating the gyro compass. However, if an error is reported in any of the input systems, it may be necessary to switch to a different input system. True bearing Make sure that the gyro compass is selected as active compass. Refer Selecting active compass, page 12.
Simrad GC80/GC85 Compact Gyro Compass Speed The GC80/GC85 gyro compass calculates bearing based on the speed and latitude information that is input to the gyro system. Any errors in speed input will therefore cause incorrect true bearing from the gyro compass. Press the DISP button until the vessel’s speed information is displayed. Confirm in 4 hours intervals that the displayed speed is the same as the vessel’s actual speed.
VESSEL SPEED (knots) 28 26 22 20 18 1.2 1.4 16 20221511 / C 1.6 14 1.8 12 2.0 8 6 2 0 90 80 70 60 50 40 30 20 10 0 SPEED ERROR (degrees) 30 90 - 90 - 270 - 270 80 - 100 - 260 - 280 70 - 110 - 250 - 290 60 - 120 - 240 - 300 50 - 130 - 230 - 310 40 - 140 - 220 - 320 0 - 180 - 190 - 0 10 - 170 - 190 - 350 20 - 160 - 200 - 340 30 - 150 - 210 - 330 OPERATION VESSEL HEADING (degree) ( ) (+) (+) ( ) 0 0.2 24 0.4 0.6 0.8 1.0 10 2.2 2.4 2.6 2.8 4 3.0 3.2 3.4 3.
Simrad GC80/GC85 Compact Gyro Compass 3.6 Pendulum function GC80/85 software includes a pendulum function that enables the heading to be changed by 180°. The heading change is activated by closing a potential free contact connected between TB1, pin 25 and 26 in GC80/85 control unit. Note! To identify the function, S2-4 on the ICIF board has to be set to ON. Refer DIP switch settings on ICIF board, page 91 onwards.
OPERATION 3.7 Alarm messages The GC80/GC85 system will continually check for faults while the system is running. If a fault occurs, an alarm code will be displayed in the LCD, the Alarm lamp will be flashing, and an audible alarm will be activated. Up to 4 alarm codes may be displayed in the LCD to indicate that several alarm situations are present. The last activated alarm will be displayed on the right side of the display. The figure shows that alarm with code 1, 3 and 2 were generated in that order.
Simrad GC80/GC85 Compact Gyro Compass Acknowledging an alarm ^`h bkq An alarm is acknowledged by pressing the ACK/ENT button. - The audible alarm will be silenced - If the alarm situation has disappeared, the alarm lamp will be switched off, and the alarm code will be removed from the LCD - If the alarm situation continues, the alarm lamp will switch from flashing to steady light.
MAINTENANCE 4 MAINTENANCE This section holds descriptions for maintenance procedures that should be performed by the system operator. The section also includes a detailed description for how to replace the sensitive element and the fuses.
Simrad GC80/GC85 Compact Gyro Compass 4.1 General All units in the GC80 system are designed for optimum safety and reliability. However, a limited amount of preventive maintenance should be performed to verify safe operation and durability. If any strange motion, smell, sound or heat is generated from any unit, a Simrad dealer shall be contacted. 4.2 Precautions Touching internal parts may cause electric chock if power is connected to the system, even if the POWER button is turned OFF.
MAINTENANCE 4.6 Preventive maintenance intervals Local evaluations should be made to determine site-specific maintenance intervals. ACTION 4.7 INTERVAL RECOMMENDED Confirm that the value of each repeater synchronizes with the displayed true bearing on the Operator panel. Daily Confirm that the displayed latitude and speed is according to the vessel’s actual latitude and speed.
Simrad GC80/GC85 Compact Gyro Compass Note! 24 4 Remove the four screws securing the Sensitive element. Tilt the Horizontal ring to the side where the plug is located, and carefully remove the element from the compass. 5 Place the defective Sensitive element in its original package, and put the rubber tube on top of the element. 6 Re-install the plug-holder on the defective Sensitive element. 7 Lift the new element carefully from its package, and remove the rubber tube on top of the element.
MAINTENANCE 8 Tilt the Horizontal ring to the side where the plug is located, and carefully put the sensitive element into the ring. - The socket on the Sensitive element should be located right above the plug attached to the Horizontal ring. 9 Position the Sensitive element on the Horizontal ring by putting the assembly jigs into the holes as indicated on the figure below. Observe the rings on the jigs to ensure proper positioning. Insert and fasten the two screws in the other holes.
Simrad GC80/GC85 Compact Gyro Compass 26 10 Replace the assembly jigs with the two remaining screws after placing the ground wire as shown on the figure. 11 Loosen the screw on the plug holder on the Sensitive element, and lift the holder 2-3 mm upwards. 12 Connect the plug to the connectors on the Sensitive element’s pcb according to the labelling on the pcb and on the wires. Make sure that the pin guides on the plug are properly entered, and that the wires are not twisted.
MAINTENANCE Verifying the element’s tilt angle 1 Tilt the Sensitive element by hand towards the level tool on the Horizontal ring and keep it tilted for approximately 1 minute. Remove the pressure and observe that the tilt angle remains at: - GC80: 15° to 19° - GC85: 18° to 22° The tilt angle is indicated on the figures below.
Simrad GC80/GC85 Compact Gyro Compass 2 Caution If the tilt angle is incorrect, weight disks must be adjusted by moving weights from one side to the other. After adjustments, wait for 2 minutes before the tilt angle verification is repeated. The sensitive element must have equal number of weight disks on both weight points on the tilting side (north and south side)! 3 Carefully rotate the Horizontal ring at least one complete rotation.
MAINTENANCE 6 Exit the sub-category by pressing the SET button, and then exit the Extension main category by pressing and holding the SET and ACK/ENT buttons simultaneously for at least 3 seconds. For more information about the Extension menu, see ADVANCED SETTINGS, page 55 onwards. Balancing the Horizontal ring After the Sensitive element has been replaced, the gyro compass should be started as described on page 10.
Simrad GC80/GC85 Compact Gyro Compass 4.8 Replacing the Fuses WARNING Before a fuse is replaced, ensure that both the main power and the emergency power are disconnected from the unit. Use the procedures described in the following pages when replacing the fuses. Master Compass Fuse F1 is located inside the fuse holder in the front of the Master compass. 1. Open the fuse holder by pressing and turning the fuse holder edge counter-clockwise with a screw driver. 2.
MAINTENANCE F1 – F5 (1A) F3 F2 F4 F1 F5 F8 TB1 TB2 F8 (6.3A) TB3 TB3 F6 F9 F7 F6, F7 AND F9 WARNING Make sure that power is disconnected from pin 1-4 on TB3 before any fuses are replaced! Note! The fuses in the Compact Control unit are open glass type and may be damaged if handles with force. 20221511 / C 1 Pull the broken fuse up from the holder. 2 Re-install a new fuse by carefully pushing it into the holder.
Simrad GC80/GC85 Compact Gyro Compass Power Supply Unit (Option) FUSE NO CAPACITY TB-NO SIGNAL F201 6.3A TB201 2AC1/2 F202 20A TB201 2B+/- F201 Main power supply Emergency power supply F202 F201 (6.3A) – F202 (20A) Caution DESCRIPTION TB201 Make sure that power is disconnected from TB201 before any fuses are replaced. The fuses in the Power Supply unit are located inside a fuse holder.
INSTALLATION 5 INSTALLATION This section is a reference guide for correctly installing and configuring the GC80/85 Gyro Compasses.
Simrad GC80/GC85 Compact Gyro Compass 5.1 Unpacking and handling A GC80/85 Gyro compass consists of the following units: - Master compass - Sensitive element - Control unit - Power Supply unit (Option) - Spare part kit - Documentation The sensitive element is shipped from the factory packed separately in a carton box to protect it from shock and vibration. The final assembly of the sensitive element into the Master compass have to be done when the Master compass is mounted onboard the vessel.
INSTALLATION Control unit The Control unit is bulkhead mounted by using 4 bolts as shown in the illustration. Flush mounting the control panel GC80/85 CONTROL UNIT The control panel may be removed from the Control unit and mounted in a remote location by using the optional flush mounting kit (part number 27101757).
Simrad GC80/GC85 Compact Gyro Compass 36 4 Loosen the 4 nuts holding the control panel, and remove the panel. These nuts are to be re-used when fastening the control panel to the flush mounting panel. 5 Insert the control panel in the flush-mounting kit from the front side as shown on the figure. Fasten the panel with the 4 nuts. 6 Insert the plug on the optional control panel cable, and connect the grounding wire. 7 Mount the cover on the back side.
INSTALLATION Power supply unit (Option) Refer mounting description for the Control unit above. Dimensional drawings for the optional Power supply unit are found on page 73.
Simrad GC80/GC85 Compact Gyro Compass Master compass Select a mounting location where the deck is horizontally, flat and with little vibration, and where the pitch/roll motion is as small as possible. It is also important to select a mounting location with sufficient space for installation and service. Refer dimensional drawing, page 72. 1 Locate the compass on or parallel to the vessel’s horizontal centerline, with the bow indication on the top of the case pointing towards the vessel’s bow.
INSTALLATION 5 Note! 5.3 Remove strips and foam rubber from the chock absorbers, together with all strips used for securing moving parts during transportation. The foam rubber should be kept for re-use if the Master compass has to be sent to factory for service! Cabling Note! No cables are included when the gyro system is delivered from factory. The wiring diagram on page 70 onwards includes cable specification for all cables that is to be used.
Simrad GC80/GC85 Compact Gyro Compass 5.4 Grounding the units All units in the GC80/GC85 system should have a proper ground connection from the unit’s ground terminal. The wires should be as short as possible and have a cross section of at least 16mm2 (gauge). MASTER COMPASS 5.5 COMPACT CONTROL UNIT POWER SUPPLY UNIT (OPTION) Dip-switch settings GC80 and GC85 gyro systems include several dip switches.
INSTALLATION Configuring the Control unit When the gyro system is shipped from factory, all dip switches in the Control unit are set as for a standard GC80 system. Before the system is started, the switch settings described below has to be changed to match a GC85 system. Dip switch no.2 on S1 on the ICIF board identifies the gyro as a GC80 or GC85 system.
Simrad GC80/GC85 Compact Gyro Compass Activating an external heading sensor If an external heading sensor is connected to the GC80/GC85, dip switch no.5 on S1 on the ICIF board has to be set to activate the external heading sensor. F3 F1 F4 F2 F5 F8 F7 F6 TB3 No external sensor Active external sensor 1 1 S1 S1 OFF ON 8 8 Activating the pendulum function If an external switch is connected to GC80/85 to operate the pendulum function, dip switch no.
INSTALLATION 5.6 Installing the Sensitive element The Sensitive element is shipped from the factory packed separately, and the element has to be installed in the Master compass according to the description below. Note! A special tool (part no. 44174449) is required when installing the Sensitive element. This tool is included in the gyro package, and the sensitive element should not be installed without using this tool.
Simrad GC80/GC85 Compact Gyro Compass 5 Position the Sensitive element on the Horizontal ring by putting the assembly jigs into the holes as indicated on the figure below. Observe the labelling and the diameter on the jigs. Fasten two screws in the other two holes. ASSEMBLY JIG WITH 1 CIRCLE ASSEMBLY JIG WITH 2 CIRCLES 44 6 Replace the assembly jigs with the two remaining screws. Locate the ground wire on one of the screws as shown on the figure.
INSTALLATION Verifying the element’s tilt angle 1 Tilt the Sensitive element by hand towards the level tool on the Horizontal ring and keep it tilted for approximately 1 minute. Remove the pressure and observe that the tilt angle remains at: - GC80: 15° to 19° - GC85: 18° to 22° The tilt angle is indicated on the figures below.
Simrad GC80/GC85 Compact Gyro Compass 2 Caution If the tilt angle is incorrect, weight disks must be adjusted by moving weights from one side to the other. After adjustments, wait for 2 minutes before the tilt angle verification is repeated. The sensitive element must have equal number of weight disks on both weight points on the tilting side (north and south side)! 3 Carefully rotate the Horizontal ring at least one complete rotation.
INSTALLATION 5.7 System start-up and software configuration When all GC80 units are installed and the cables connected according to the procedures described in previous chapters, the system is ready for the first time start-up procedure. System Start-up Turn ON the gyro system by pressing the POWER button on the Control panel.
Simrad GC80/GC85 Compact Gyro Compass 6 dvol The indicated start bearing is accepted by pressing the ACK/ENT button, or increased/decreased by using the arrow buttons and then pressing the ACK/ENT button. If no action is taken within 3 minutes, the start-up process will continue with the indicated start bearing. The bearing indication stops flashing when the start bearing is accepted, while the lamp remains flashing.
INSTALLATION Note! 4 Confirm the entry by pressing the ACK/ENT button. The display will return to sub-category 1.1.U, and the data will be transferred to the gyro immediately. 5 Press the DISP button again to select sub-category 1.2.F, and use the arrow buttons to increase or decrease the parameter value until the value corresponds with the parameter for the new sensitive element. Confirm the entry by pressing the ACK/ENT button. 6 Repeat step 5 for sub-category 1.3.S, 1.4.u, 1.5.L and 1.6.t.
Simrad GC80/GC85 Compact Gyro Compass Setting the Latitude input system The latitude input system may be changed during the settling process of the start-up procedure from item 7 onwards. 1 Press the DISP button until the display shows latitude value. 2 Press SET button once, and the upper line in the display starts flashing. 3 Use the arrow buttons for selecting Gyro or GPS as the latitude input system, and confirm the entry with the ACK/ENT button. 4 The display will change to flashing number.
INSTALLATION Setting the Speed input system The latitude input system may be changed during the settling process of the start-up procedure from item 7 onwards. 1 Press the DISP button until the display shows speed value and speed input system. 2 Press SET button once, and the upper line in the display starts flashing.
Simrad GC80/GC85 Compact Gyro Compass 5.8 Balancing the Horizontal ring After the compass has been running continuously for at least 2 hours, the horizontal ring should be adjusted. 1 Locate the reference level tool on the horizontal ring, and check that the level bubble is within +/-10 minutes from the center. Each division equals 2 minutes. 10 minutes 2 Note! It is important that the total number of weights on the horizontal ring is as few as possible.
INSTALLATION Note! 2 Press the DISP button once to display main category A-2. 3 Press the SET button to enter the sub-category 2.1.o. 4 Use the arrow buttons to increase or decrease the offset parameter value. To correct for +1.5°, press the Arrow Up button until the display shows 1.5°. To correct for -1.5°, press the Arrow Down button until the display shows 358.5°! 5 Confirm the new value by pressing the ACK/ENT button, or reject the changes by pressing the SET button.
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ADVANCED SETTINGS 6 ADVANCED SETTINGS This section gives an overview of the Extension menu, how to enter the menu and how to change parameter values.
Simrad GC80/GC85 Compact Gyro Compass 6.1 General The Extension menu holds internal parameters and communication parameters required to achieve the best possible heading accuracy on the GC80/GC85 Gyro compass. The Extension menu is grouped in 8 main categories, named A1 through A-8. Each of these main categories has again several sub-categories where parameter values may be set. All values in the Extension menu are stored in the nonvolatile memory of the compass. 6.
ADVANCED SETTINGS pbq MAIN MENU pbq ^`h bkq CHANGE / CLEAR PARAMETER VALUE pbq afpm afpm afpm ^`h bkq ^`h bkq ^`h bkq NEXT MAIN CATEGORY 6.3 afpm NEXT SUB CATEGORY The Extension menu overview Main Category Sub Category A-1 1.1.U Parameter/description Damping gain Default value Range 1.00 0.00 – 2.00 1.00 0.00 – 2.00 1.00 0.00 – 2.00 1.00 0.00 – 2.
Simrad GC80/GC85 Compact Gyro Compass Main Category Sub Category 1.5.L Parameter/description (φ) Phi offset (°) A-1 cont. Default value Range 0.00 -3.00 – 3.00 0.00 -3.00 – 3.00 2.32 0.00 – 5.00 1.477 1.000 – 2.000 0.00 - 0.00 - 0.00 - Offset value (°) around the vertical axis of gyro sphere (rotor axis) and the sensitive element. 1.6.t (θ) Theta offset (°) Offset value (°) around the horizontal axis of gyro sphere (rotor axis) and the sensitive element. 1.7.
ADVANCED SETTINGS Main Category Sub Category A-2 2.1.o Parameter/description Bearing offset A (°) Default value Range 0.0 0.0 – 359.9 0.0 0.0 – 359.9 345.3 0.0 – 359.9 2.0 0.0 – 5.0 - 2000 - 2099 - - - - - - Offset value included in the “master bearing” and used for correction of fixed error (°). If the master compass not can be mounted parallel to the vessel’s fore-after line, this parameter is used to compensate for a small mounting error. 2.2.
Simrad GC80/GC85 Compact Gyro Compass Main Category Sub Category A-2 cont. 2.9.G Parameter/description Display/setting of GPS connection Default value Range - bE or Non - bE or Non - bE or Non - bE or Non 0.00 0.0 – 161 The following abbreviations are used: bE: GPS connected Non: No GPS connected NOTE: When this value is set to “Non”, GPS can not be selected as the vessel’s input for speed and latitude. 2.A.
ADVANCED SETTINGS Main Category Sub Category A-4 4.1.C GPS serial data character length 4.2.P A-5 A-6 A-7 A-8 20221511 / C Default value Range 8 8 or 7 GPS serial data parity bit Non Non, Even, Odd 4.3.S GPS serial data stop bits 1 1 or 2 5.1.C LOG serial data character length 8 8 or 7 5.2.P LOG serial data parity bit Non Non, Even, Odd 5.3.S LOG serial data stop bits 1 1 or 2 6.1.C External sensor (standard) serial data character length 8 8 or 7 6.2.
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TECHNICAL SPECIFICATION 7 TECHNICAL SPECIFICATION This section lists all specifications for GC80/85 gyro compass.
Simrad GC80/GC85 Compact Gyro Compass 7.1 Accuracy Settling time:.......................................................... within 3 hours (if startup heading is within +/-5° of actual heading) Settle point error: ................................................... less than ±0.1º RMS value of the difference:................................... less than 0.1º Repeatability of settle point error: ......................... less than ±0.1° Roll and pitch error:...............................................
TECHNICAL SPECIFICATION 7.3 Input specification Serial input signal (GPS) Circuits:.....................................................................1 Electrical: .............. RS422/MNEA0183/Current loop Baud rate: ..................................................... 4800 bps Data bits: ............................................................8 bits Parity:................................................................. None Stop bits: ............................................................
Simrad GC80/GC85 Compact Gyro Compass 7.4 Output specification Serial output signal 1 Circuits:.....................................................................4 Electrical: ..................................................RS422/485 When Gyro Baud rate: is selected GC80: ...................................................... 4800 bps GC85 .....................................................
TECHNICAL SPECIFICATION STEP signal Circuits:.....................................................................4 Electrical: ...................................... 24V DC – 6 step/° Alarm output Potential free .................................................. NO/NC Running contact Potential free .................................................. NO/NC Refer Jumper settings on ICIF board, page 89. 7.5 Physical Dimensions GC80 Master Compass Height: .....................................................
Simrad GC80/GC85 Compact Gyro Compass GC80 Compact Control Unit Voltage input: .................................................................. 24V DC Backup voltage: ............................................................... 24V DC Power consumption, including Master compass: Starting............................................. 3.3A at 24V DC Running:........................................... 2.6A at 24V DC GC80 Power Supply unit (option) Voltage input: ..........................................
DRAWINGS 8 DRAWINGS This section contains outline drawings showing mechanical dimensions of the different GC80/GC85 units, together with wiring diagrams for the gyro system.
Simrad GC80/GC85 Compact Gyro Compass 8.1 Drawings included The following mechanical drawings are enclosed: Name Drw. no Rev. GC80 Compact Control unit, dimensions N3-710178 A GC80/85 Master Compass, dimensions N3-710179 A GC80/GC85 Power Supply unit, dimensions N3-710180 A GC80/85 Remote panel, dimensions D4-710208 B Name Drw. no Rev. GC80/85 Gyro Compass, Compact system. Wiring diagram N3-710181 B N3-710182 B To scale drawings are available upon request.
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SHIP'S SUPPLY FOR GYRO (DC24V max 8A) 1 2 1 2 3 9 10 11 12 13 4 5 6 7 8 14 AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED 6 7 8 75 AWG17 SHIELDED AWG18 TWISTED / SHIELDED AWG18 AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED AWG20 10 11 12 13 14 15 AWG18 TWISTED / SHIELDED AWG17 SHIELDED 9 AWG14 AWG17 SHIELDED 5 AWG14 2 4 AWG14 1 3 CABLE TYPE CABLE NO.
1 2 5 6 3 4 7 8 9 10 11 14 17 18 16 N+ NAL1 AL2 ALC EA+ EAEB+ EBECC MT+ MTMR+ MRMSC FGND 1 2 1 2 3 9 10 11 12 13 4 5 6 7 8 14 SHIP'S SUPPLY FOR GYRO (AC) AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED 6 7 8 AWG18 AWG18 TWISTED / SHIELDED AWG18 TWISTED / SHIELDED AWG14 AWG14 AWG14 AWG17 AWG20 13 14 15 16 17 18 19 11 12 AWG17 SHIELDED AWG18 TWISTED / SHIELDED 10 AWG18 TWISTED / SHIELDED AWG17 SHIELDED 5 9 AWG14 AWG17 SHIELDED AWG14 2 4 AWG14
SPARE PART LIST 9 SPARE PART LIST This section includes part numbers for all standard and optional units that may be included in a GC80 and GC85 gyro system.
Simrad GC80/GC85 Compact Gyro Compass 9.1 GC80 Compact Gyro system PART NO DESCRIPTION 27101674 GC80 Master compass 44174027 GC80 Sensitive element 27101690 GC80 Compact Control unit 20221511 GC80/GC85 Compact gyro compass Instruction manual 44174449 Special tool required when installing the Sensitive element 9.
SPARE PART LIST 9.
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TERMINAL LAYOUT 10 TERMINAL LAYOUT This section includes tables which list all terminal pins and terminal labelling on pcbs in the GC80 Control unit. The tables include detailed description for each terminal.
Simrad GC80/GC85 Compact Gyro Compass 10.
TERMINAL LAYOUT PIN NO NAME DETAILS 34 2TX+ 35 2TX- 36 2TSC Serial signal common 37 2R24- Serial repeater power supply (24V DC common) 38 2R24+ Serial repeater power supply (24V DC) 39 3TX+ 40 3TX- 41 3TSC Serial signal common 42 3R24- Serial repeater power supply (24V DC common) 43 3R24+ Serial repeater power supply (24V DC) 44 4TX+ 45 4TX- 46 4TSC Serial signal common 47 4R24- Serial repeater power supply (24V DC common) 48 4R24+ Serial repeater power supply (24V D
Simrad GC80/GC85 Compact Gyro Compass TB3 When used with 24V DC main: PIN NO NAME 1 24M+ 2 24M- 3 24B+ 4 24B- 5 24BT+ 6 24BT- DETAILS External power supply input Not used Battery backup When used with non Simrad Power supply unit: PIN NO 84 NAME 1 24M+ 2 24M- 3 24B+ 4 24B- 5 24BT+ 6 24BT- DETAILS External power supply input Battery backup 20221511 / C
TERMINAL LAYOUT 10.
Simrad GC80/GC85 Compact Gyro Compass THIS PAGE INTENTIONALLY LEFT BLANK 86 20221511 / C
DIP SWITCH SETTINGS 11 DIP SWITCH SETTINGS This section includes drawings for the different printed circuits boards in the Control unit that include jumpers and dip switches.
Simrad GC80/GC85 Compact Gyro Compass 11.1 Compact control unit Three different boards in the Compact control unit have jumpers and/or dip switches that may be used for configuring the GC80/85 system. Only a few of these jumpers/dip switches are used in installation and pre-running procedure for the gyro compass. Refer Jumper settings in Compact Control unit, page 37, and Dip-switch settings, page 40.
DIP SWITCH SETTINGS ICIF board DIP switch settings on ICIF board SWITCH DEFAULT FUNCTION DESCRIPTION S1-1 ON Control unit type OFF = Expanded, ON =Compact S1-2 OFF Master compass type OFF = Standard, S1-3 OFF Control unit type OFF = Expanded, ON =Dual S1-4 OFF 2 gyros used OFF = No, SW1-5 OFF S1-5 SW1-6 OFF OFF SW1-5 OFF External sensor connection S1-6 SW1-6 ON SW1-5 ON SW1-6 OFF OFF SW1-5 ON SW1-6 ON S1-7 20221511 / C OFF Serial signal format ON =High Speed ON =Yes = No e
Simrad GC80/GC85 Compact Gyro Compass SWITCH DEFAULT FUNCTION S1-8 OFF S2-1 OFF S2-2 OFF S2-3 OFF Not used. S2-4 OFF Pendulum ferry Alarm output setup DESCRIPTION OFF = All alarms, ON = Only power failures Used for debugging OFF = Not connected ON = Pendulum function in use SW2-5 OFF S2-5 SW2-6 OFF OFF SW2-5 OFF Serial signal transmit frequency IEC61162-1 ed.
DIP SWITCH SETTINGS Jumper settings on ICIF board JUMPER DEFAULT J5 Short FUNCTION Software installation DESCRIPTION Open = Software may be installed on ICIF board NOTE: Make sure that also J1 on the IOPT board is set to “Open” NOTE: Control unit will be damages if new software is installed with this jumper ON! J6 Open J7 3-4 short CUP reset Used when resetting the CPU Output port: ITERM board, TB1 “1TX” 1-2 short = IEC61162-2 or TOKIMEC version 3-4 short = IEC61162-1 ed.2 (ref.
Simrad GC80/GC85 Compact Gyro Compass JUMPER DEFAULT FUNCTION DESCRIPTION 1-2 short = Alarm CLOSED, Normal OPEN 3-4 short = Alarm OPEN, Normal CLOSED NOTE: Never use both jumpers at the same time! J15 1-2 short LOG pulse selection Input port: ITERM board, TB2 “SL” 1-2 short = 200p.p.n.m. 3-4 short = 400p.p.n.m.
DIP SWITCH SETTINGS Jumper settings on IOPT board JUMPER DEFAULT J1 1-2 short J3 J6 J7 20221511 / C 1-2 short 1-2 short 1-2 short FUNCTION Software installation Running contact output Polarity of “LOG” signal setting Polarity of “External heading sensor” signal setting.
Simrad GC80/GC85 Compact Gyro Compass ITERM board J6 F8 TB1 TB2 J5 Jumper settings without Power supply unit JUMPER DEFAULT FUNCTION DESCRIPTION 1-3 short J5 2-4 short System used without Power supply unit J6 TB2-16 short 1-3 short - No Power supply unit J5-3 to 2-4 short No Power supply unit Jumper settings with Power supply unit JUMPER DEFAULT FUNCTION J5 - J6 - System used with Power supply unit Note! 94 DESCRIPTION All open All open With Power supply unit Remove the wire
ALARM MESSAGES AND CORRECTIVE ACTIONS 12 ALARM MESSAGES AND CORRECTIVE ACTIONS This section provides a description which system errors that are displayed, and which corrective actions that could be performed by the system operator.
Simrad GC80/GC85 Compact Gyro Compass 12.1 The alarm system The GC80/GC85 system will continually check for faults while the system is running. If a fault occurs, an alarm code will be displayed in the LCD, the Alarm lamp will be flashing, and an audible alarm will be activated. Up to 4 alarm codes may be displayed in the LCD to indicate that several alarm situations are present. The last activated alarm will be displayed on the right side of the display.
ALARM MESSAGES AND CORRECTIVE ACTIONS 12.2 Acknowledging an alarm ^`h bkq An alarm is acknowledged by pressing the ACK/ENT button. - The audible alarm will be silenced - If the alarm situation has disappeared, the alarm lamp will be switched off, and the alarm code will be removed from the LCD - If the alarm situation continues, the alarm lamp will switch from flashing to steady light.
Simrad GC80/GC85 Compact Gyro Compass 12.3 Fault finding When an alarm is generated and not removed by pressing the ACK/ENT button, further actions should be taken to correct the alarm situation. The following pages present an overview of symptoms and corrective actions for faults that may be corrected by the operator. If none of these procedures correct the problem, contact the local Simrad dealer for advice or for requesting on board service.
ALARM MESSAGES AND CORRECTIVE ACTIONS Internal power failure in Control unit Generated when the Control unit’s power supply are over current or over voltage. 1 Turn OFF the power by pressing the POWER button, and repress the POWER button after 20 seconds. 2 If no alarm is activated, continue the start-up procedure as described in Start-Up, page 10. 3 If the alarm is repeated, contact Simrad’s local dealer for assistance.
Simrad GC80/GC85 Compact Gyro Compass System communication failure Alarms generated when there is a failure in communication from the Master compass to the Control unit. 1 Turn OFF the power by pressing the POWER button, and repress the POWER button after 20 seconds. 2 If no alarm is activated, continue the start-up procedure as described in Start-Up, page 10. 3 If the alarm is repeated, turn OFF the power and disconnect the power cable to the Control unit.
ALARM MESSAGES AND CORRECTIVE ACTIONS Internal communication failure and Caution Generated when the communication from the external bearing sensor has stopped ( ), or when a failure is detected in the communication ( ). When these alarms are generated, the bearing information from the external bearing sensor may have large error. 1 Verify that the external bearing sensor operates correctly according to the system’s documentation.
Simrad GC80/GC85 Compact Gyro Compass Repeater failure No output on single repeaters 1 Check that the repeater is connected to the gyro according to the repeater’s documentation. 2 Each repeater output has a separate fuse in the Control unit. Disconnect the power to the Control unit, and check the fuse for the repeater not working: - Step repeater: F11 to F14, F5 to F9: 1A - Serial repeater: F1 to F10: 1A For location and replacement of the fuses, refer to page 28 onwards.
ALARM MESSAGES AND CORRECTIVE ACTIONS 12.4 Complete alarm code list Alarm code E-1 E-2 E-3 E-4 *1 E-5 *1 E-6 Alarm content Main power is abnormal Possible cause 1 When the main power (AC power source) is lost. 2 Power supply unit in the control box becomes over current. 3 Power supply unit in the control box becomes over voltage. 4 24R is lost. 5 Inverter in the master compass becomes over current. 6 Inverter in the master compass becomes over voltage. 7 +12.5V is abnormal. 8 -12.
Simrad GC80/GC85 Compact Gyro Compass Alarm code Detailed code Alarm content Possible cause E-F MAG/EHS data abnormal 33 EHS data abnormal. (timeout is 17 sec.) E-L EXT. sensor communication off 30 When EXT. sensor system is stopped or serial signal from EXT. sensor is cut. (timeout is 15 sec.) E-n EXT. sensor data abnormal 31 EXT. sensor data abnormal.(timeout is 17 sec.) E-P LOG(serial) communication off 28 When LOG (serial) system is stopped or serial signal from LOG (serial) is cut.
