SEDEMAC GC1100 User Manual

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MANUAL FOR

GC1100:

GENSET

CONTROLLER

Product Manual Version #0.00

ABSTRACT

This manual is intended as

an information guide for

operating SEDEMAC's GC1100

genset controller.

Doc #SED-MAN-GC1100-002

Date: 20-Apr-2018

Table of Contents

Questions and Answers:

W
William WelchAug 2, 2025
What to do if SEDEMAC GC1100 Controller fails to crank-start the engine?
- L
  Laura CannonAug 2, 2025
  If the SEDEMAC Controller fails to crank and start the engine, you should: * Check the battery voltage. * Enter “configuration mode” in the controller and verify the configuration for the “Start Relay” output. Also, check that “Start Relay” output is working correctly by measuring its output voltage. * Enter “configuration mode” in the controller and verify the configuration of “CRANK DISCONNECT” method. * Verify the configuration of “LLOP SWITCH” polarity. Also, ensure that the 3+2n/4+2n switch & sensor are working OK. Check their wiring.
C
clarkandrewAug 7, 2025
How to troubleshoot SEDEMAC GC1100 that does not power ON?
- G
  garciakennethAug 7, 2025
  If the SEDEMAC Controller does not power ON: * Check the battery voltage. * Check the fuse on the battery supply. * Check continuity between battery positive and controller terminal # 2. * Check continuity between battery ground and controller terminal # 1.
C
Charles ValdezAug 12, 2025
What to do if SEDEMAC Controller generates unnecessary Shutdown or Warning Alarms?
- M
  Margaret HansonAug 12, 2025
  If the SEDEMAC Controller generates unnecessary “Shutdown Alarms” or “Warning Alarms”, you should: * Check the respective switch/sensor and wiring. * Enter “configuration mode” in the controller and verify the respective threshold configuration.
M
Megan SolomonAug 17, 2025
What to do if SEDEMAC Controller shows Emergency Stop alarm when it is not pressed?
- D
  Deborah PetersonAug 17, 2025
  If the “Emergency Stop” alarm activates on the SEDEMAC Controller even when the “Emergency Stop” is not pressed: * Check if the “Emergency Stop” switch is working OK. Check its wiring also. * Enter “configuration mode” in the controller and verify the configuration of “EMERGENCY STOP” polarity.

SEDEMAC GC1100 Specifications

General

Processor	32-bit ARM Cortex-M4
Flash Memory	512 KB
RAM	128 KB
Communication Interfaces	CAN
Outputs	Digital
Protection	Over-voltage, Under-voltage, Over-current

Summary

Safety Instructions

General Safety Instructions

Electrical Safety Guidelines

Precautions regarding electric shock and safe handling of electrical components.

Operational Safety Precautions

Safety measures to follow before and during genset controller installation and operation.

Introduction to GC1100 Controller

GC1100 Specifications

Power Supply Specifications

Generator Voltage and Frequency Measurements

Communication Ports

Installation Guide

Panel Mounting Instructions

Terminal Description

Detailed description of controller terminals and their functions, shown on the rear view.

Typical Wiring Diagram (AMF)

Module Display and Screens

Monitoring Mode Screens

Control Key Functions

Control Key Operations by Mode

Detailed functions of control keys in Manual, Auto, and Configuration modes.

Controller Configuration Mode

Entering Configuration Mode

Instructions on how to enter the controller configuration mode.

Viewing and Modifying Configuration

Procedure for viewing or changing controller configuration parameters.

Configurable Parameters

General, Display, and Communication Parameters

Auto Exercise and Cyclic Mode Configuration

Digital and Analog Input Configuration

Output and Timer Settings

Generator Configuration and Monitoring

Settings for alternator configuration, voltage, and frequency monitoring.

Current, Load, and Mains Monitoring/Configuration

Settings for current, load, and mains monitoring and configuration.

Engine Monitoring and Control Settings

Settings for engine monitoring, crank disconnect, and oil pressure.

Speed, Battery, and Charging Alternator Settings

Maintenance and Miscellaneous Settings

Digital Input Source Selection

Digital Output Source Selection

Module Operation Modes

Auto Mode Operation

Details on entering and using Auto Mode, including configurations like AMF and Auto Exercise.

Auto Mains Failure (AMF) Mode

Explanation of AMF mode operation, including mains monitoring and genset cranking.

Remote Start/Stop Operation

Auto Exercise Mode

Cyclic Mode Operation

Manual Mode Operation

Explanation of Manual Mode operation and how to start/stop the genset.

Alarm System

Types of Alarm Actions

Common Alarms, Causes, and Actions

List of alarms, their probable causes, and recommended action options.

Troubleshooting Common Issues

Manual Mode Troubleshooting

Common faults in Manual Mode and their remedial actions.

Controller Power and Cranking Issues

Troubleshooting for controller power and engine cranking failures.

Auto Mode Troubleshooting

Common faults in Auto Mode and their remedial actions.

Remote Start/Stop Command Issues

Troubleshooting for remote start/stop command issues in Auto mode.

Communications Protocol

RS485 MODBUS Protocol Details

RS485 MODBUS Precautions and Function Codes

RS485 MODBUS Register Map (Input Registers)

RS485 MODBUS Register Map (Continued)

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