Introduction; About; Function Overview - Deif SGC 420 User Manual

1. Introduction

1.1

About

The SGC 420 controller has all the functions needed to protect and control the genset, the genset breaker, and also a mains
breaker. The values and alarms are shown on the LCD display screen, and operators can control the system from the
display.
You can use the SGC 420 to monitor the site battery and significantly reduce your fuel consumption. You can also use the
controller to monitor the shelter temperature, engine and alternator parameters, and the true RMS voltage and current.
Configure the parameters with the DEIF Smart connect software. You can also configure the parameters on the controller.
1.2

Function overview

This is an overview of the most important functions.
Monitoring
Use the SGC controller to monitor the site battery and the shelter temperature. The controller can also monitor the mains,
and engine and alternator parameters.
Inputs and outputs
• Analogue current/voltage inputs
• Analogue resistive inputs
• Differential input for site battery voltage
• Digital switch input
• DG alternator input
• Mains voltage input (AMF)
• Input for fuel reference selection
• Digital outputs
Communication
• RS-485 for Modbus communication
• CAN bus engine communication
• USB interface to PC
Modes of operation
The SGC controller can operate in AUTO mode, manual mode, and test mode.
In AUTO mode, you can select these functions:
• Island
• Site battery monitoring
• Automatic mains failure (AMF)
• Cyclic mode
• Remote start/stop
• Auto exercise
• Engine drive
Display and language functions
• Backlit display
• Supports many languages, including English, Spanish, and Chinese
User manual 4189341341B EN Page 5 of 89