Simrad GC80 EXPANDED User manual

ENGLISH
GC80/85
Double System Controller
User Manual
www.navico-commercial.com

Simrad GC80/85 Double System Controller
988-12721-001 3
Document history
Rev. 001 First review

Simrad GC80/85 Double System Controller
4988-12721-001
1PREFACE
1.1 Compliance statement
Navico declare under our sole responsibility that the GC80/85 conform
with the requirements of:
•The European Council Directive 2014/90/EU on Marine Equipment
modified by Commission Implementing Regulation (EU)
2019/1397 - Wheelmark.
All compliance documents are available in the product’s section at the
following website: www.navico.com/commercial.
1.2 Disclaimer
As Navico is continuously improving this product, we retain the right to
make changes to the product at any time which may not be reflected in
this version of the manual.
Please contact your nearest distributor if you require any further
assistance.
It is the owner’s sole responsibility to install and use the equipment in a
manner that will not cause accidents, personal injury or property damage.
The user of this product is solely responsible for observing maritime safety
practices.
NAVICO HOLDING AS AND ITS SUBSIDIARIES, BRANCHES AND AFFILIATES
DISCLAIM ALL LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT
MAY CAUSE ACCIDENTS, DAMAGE OR THAT MAY VIOLATE THE LAW.
This manual represents the product as at the time of printing. Navico
Holding AS and its subsidiaries, branches and affiliates reserve the right to
make changes to specifications without notice.
Governing language
This statement, any instruction manuals, user guides and other information
relating to the product (Documentation) may be translated to, or has been
translated from, another language (Translation). In the event of any conflict
between any Translation of the Documentation, the English language
version of the Documentation will be the official version of the
Documentation.
1.3 Copyright
Copyright © 2021 Navico Holding AS.
1.4 Trademarks
Navico® is a registered trademark of Navico Holding AS.
Simrad® is used by license from Kongsberg.

Simrad GC80/85 Double System Controller
988-12721-001 5
1.5 About this manual
Intended audience
This manual is intended as a reference guide for installing, operating and
maintaining the GC80/85 Double System Controller unit.
The manual assumes that the operator is a qualified ship officer, or is
under supervision of a qualified person.
Important text conventions
In this manual, references to buttons on the operator panels are written in
boldface, but in a different text style (e.g. MENU button, SET/ENT button,
HDG button).
Important text that requires special attention from the reader is
emphasized as follows:
Note! Used to draw the reader’s attention to a comment or some important
information.
Caution Used to warn the reader that a risk of damage to the equipment exists
if care is not exercised.
WARNING Used when it is necessary to warn personnel that a risk of
injury or death exists if care is not exercised.

Contents
6 988-12721-001
This manual is divided into the following sections:
1. Preface
2. System overview
An overview of the GC80/85 Double System Controller unit and its components.
3. User interface
An overview of GC80/85 Double System Controller unit and the user interface.
4. Operation
Main operating procedures for using the GC80/85 Double System Controller unit.
5. Maintenance
Simple maintenance procedures that should be performed by the system operator.
6. Installation
Mechanical installation, cable connection, and software configuration for the GC80/85 Double
System Controller unit.
7. Technical specifications
Specifications for the system and for all separate units in the GC80/85 Double System Controller unit.
8. Drawings
Dimensional drawings and wiring diagrams for the GC80/85 Double System Controller unit.
9. Part list
List of all standard and optional units that are used in the GC80 and GC85 Double System Controller
unit.
10. Terminal layout
List of all terminal pins and terminal labelling with details on GTERM-A board in the GC80/85 Double
System Controller unit.
11. DIP switch settings
Drawings and references of jumpers and DIP switches for the different printed circuits boards in the
Double System Controller unit.
12. Alarm messages and corrective actions
A description of how system errors are indicated and corrective actions that can be performed by the
operator.
13. Troubleshooting

Contents
988-12721-001 7
Contents
1PREFACE............................................................................................. 4
1.1 Compliance statement.........................................................4
1.2 Disclaimer .........................................................................4
Governing language.......................................................4
1.3 Copyright ..........................................................................4
1.4 Trademarks .......................................................................4
1.5 About this manual ..............................................................5
Intended audience.........................................................5
Important text conventions.............................................5
2SYSTEM OVERVIEW .......................................................................... 11
2.1 Introduction.....................................................................11
2.2 Precautions in use ............................................................12
2.3 System components..........................................................12
2.4 Bearing repeaters.............................................................14
3USER INTERFACE.............................................................................. 15
3.1 General...........................................................................15
3.2 Control panel ...................................................................15
Heading sensor indicators.............................................15
4OPERATION ...................................................................................... 17
4.1 System start-up and shut-down..........................................17
Power ON/OFF ............................................................17
4.2 Display ...........................................................................18
Start screen ...............................................................18
Display menu list ........................................................18
Main screen................................................................19
Screen when the gyrocompass is settling........................19
Screen when an Alert occurs.........................................20
4.3 Select heading sensor .......................................................20
Sensor selection..........................................................20
4.4 Adjust display illumination and display test ..........................20
Adjust display brightness..............................................20
Display test................................................................21
4.5 Alarm messages...............................................................21

Contents
8 988-12721-001
Central alarm panel.....................................................21
BAMS ........................................................................21
5MAINTENANCE.................................................................................. 22
5.1 General...........................................................................22
5.2 Precautions......................................................................22
5.3 Cleaning the operator panels and the cabinet surface ............23
5.4 Check warning label..........................................................23
5.5 Checking the connectors....................................................23
5.6 Checking mechanical installation.........................................23
5.7 Preventive maintenance intervals........................................23
5.8 Replacing the fuses...........................................................24
GC80/85 Double System Controller unit .........................24
5.9 Storage and disposal methods............................................26
5.10 Heading sensor parameter check ........................................26
6INSTALLATION ................................................................................. 28
6.1 Unpacking and handling ....................................................28
6.2 Mechanical installation ......................................................28
Control unit................................................................28
6.3 Cabling ...........................................................................29
Power supply..............................................................30
6.4 Grounding the unit............................................................30
6.5 DIP switch and jumper settings ..........................................30
Activating the GC80 or GC85 Double System Controller
unit...........................................................................30
6.6 Activating or deactivating the automatic switch.....................32
6.7 Expanded Control unit settings in a Double gyro system.........32
6.8 Parameter settings ...........................................................33
7TECHNICAL SPECIFICATIONS ........................................................... 34
7.1 General specifications .......................................................34
7.2 Input specifications...........................................................35
7.3 Output specifications.........................................................37
7.4 Physical dimensions..........................................................38
GC80/85 Double System Controller unit .........................38
7.5 Power .............................................................................38
GC80/85 Double System Controller unit .........................38

Contents
988-12721-001 9
7.6 Environmental specifications ..............................................39
GC80/85 Double System Controller unit .........................39
8DRAWINGS ....................................................................................... 40
8.1 Drawings included ............................................................40
9PART LIST......................................................................................... 47
9.1 GC80/85 Double System Controller unit...............................47
9.2 GC80/85 optional equipment, Double System Controller unit ..47
10 TERMINAL LAYOUT ........................................................................... 48
10.1 DGCT board.....................................................................48
TB1...........................................................................48
TB2...........................................................................48
TB3...........................................................................49
TB21 .........................................................................50
TB22 .........................................................................50
TB23 .........................................................................51
TB24 .........................................................................52
TB25 .........................................................................53
TB26 .........................................................................53
TB27 .........................................................................54
TB28 .........................................................................54
TB29 .........................................................................55
TB30 .........................................................................55
11 DIP SWITCH SETTINGS..................................................................... 56
11.1 Double System Controller unit............................................56
DGCIF board ..............................................................57
SCC boards ................................................................62
DGCT board................................................................66
12 ALERT MESSAGES AND CORRECTIVE ACTIONS ................................. 67
12.1 The alert system ..............................................................67
Alert display ...............................................................67
Display when an alert occurs.........................................67
Alert list.....................................................................68
Alert history ...............................................................68
12.2 Acknowledging an alert .....................................................69
Operation when an alert is activated ..............................69

Contents
10 988-12721-001
Check alert screen.......................................................71
Check alert list and alert history....................................71
12.3 Complete alarm code lists..................................................72
Alerts detected on Double.............................................72
Alert detected in GC80/85 Expanded No.1..............................74
Alert detected in GC80/85 Expanded No.2 ......................74
Alarm priority list ........................................................75
13 TROUBLESHOOTING ......................................................................... 77