What to do if Deif SGC 420 Controller shows incorrect PF value or kW or load current?
If the Deif Controller shows an incorrect PF value, kW, or load current: * Check the wiring of the failing alternator phase voltage and the CT to the controller. * Check the CT ratio (if kW or current reading is faulty).
Why does Deif SGC 420 show Emergency stop alarm when it is not activated?
If the Emergency stop alarm is shown on the Deif Controller without the Emergency stop being activated, check if the Emergency stop switch is working OK, including the wiring. Also, enter the Configuration mode in the controller and verify the configuration of the Emergency stop polarity.
What to do if Deif SGC 420 Controller shows Charging Alt Fail alarm?
If the Deif Controller displays a Charging Alt Fail alarm, here are some steps to investigate: * To check if the controller's charging alternator terminal is working: Disconnect the charging alternator wiring to the controller's terminal 10. Short the terminal 10 to the ground through a DC ammeter. Crank-start the engine. The DC ammeter should indicate the current in the range of 200 to 400 mA for ~30 seconds. If yes, the controller's charging alternator terminal is working correctly. * Disconnect and re-connect the charging alternator ind connection to the controller's terminal 10. * Check if the charging alternator is working corrctly.
What to do if Deif SGC 420 Controller generates unnecessary shutdown alarms or warning alarms?
If the Deif Controller generates unnecessary shutdown or warning alarms, take these actions: * Check the respective switch, sensor and wiring. * Go to the Configuration menu. Make sure the threshold values for the alarms and warnings are configured correctly.
What to do if Deif SGC 420 Controller shows emergency stop alarm without emergency stop activated?
If the Deif Controller shows an emergency stop alarm without the emergency stop being activated: * Check if the Emergency stop switch is working correctly, including the wiring. * Enter the Configuration mode in the controller and verify the configuration of the Emergency stop polarity.
What to do if Deif SGC 420 Controller display freezes?
If the Deif Controller display freezes, reset the controller power.
What to check if Deif Controller is not sending data via Modbus?
If the Deif Controller is not sending data via the Modbus communication, check if the Modbus communication is enabled in the controller. Also, check if the Modbus communication settings of slave match with the master, if the connections are done properly for the Modbus input (terminals 31 and 32), if the connections are interchanged and the 120 ? resistance between terminal A (terminal 31) and terminal B (terminal 32).
Why does Deif SGC 420 Controller send a Start command even if the Mains is present?
If, while in Auto mode, the Deif Controller sends a Start command even if the Mains is present, check the wiring of the mains L1, L2, and L3 phase to the controller's respective input terminal. Also, enter the Configuration mode in the controller and verify the configuration for the Mains monitoring.
What should I do if the engine runs, but the Deif Controller shows genset to be OFF?
If the engine runs, but the Deif Controller shows the genset to be OFF, check if the alternator voltage signal (L1 phase) is received by the controller terminal. Also, check if the LOP and LLOP are working OK, and verify the wiring to the controller.
How to resolve Error C03 on Deif SGC 420?
Error C03 on the Deif Controller can occur if the controller is disconnected from the PC during a configuration. To resolve this: 1. Press and hold the Stop/Config button during a power cycle to reset the controller. 2. Re-send the configuration file.
General| Storage temperature | -40°C to +85°C |
|---|---|
| Protection | IP20 |
| Protection Class | IP20 |
| Input Voltage | 100 to 690 V AC |
| Communication | RS485, Ethernet |
| Dimensions | 144 x 144 x 35 mm |
General information about DEIF's SGC 420/421 genset controllers.
Overview of the main features and capabilities of the SGC 420/421 controllers.
Summary of the SGC 420/421 controller's features and specifications.
Description and identification of the physical buttons on the controller.
Contains warranty, disclaimer, and copyright information.
General guidelines and warnings for safe installation and maintenance.
Specific safety precautions related to electrical hazards and shock prevention.
Safety measures to follow during the operation of the controller and genset.
Details on the types and specifications of terminal blocks used in the SGC 420/421.
Specifications related to the controller's power supply requirements and operation.
Technical details for measuring genset voltage and frequency.
Technical specifications for measuring genset current.
Specifications for earth leakage and fan current monitoring.
Technical details for measuring mains voltage and frequency.
Specifications and configuration options for digital inputs.
Details on analogue inputs for resistive sensors, including range and accuracy.
Wiring diagrams showing how analogue inputs can function as digital inputs.
Specifications for analogue voltage and current sensing inputs.
Details on inputs for site battery monitoring and run hours.
Specifications for the magnetic pick-up input used for engine speed sensing.
Specifications for the controller's digital output terminals.
Details on actuator outputs for electronic governing applications on SGC 421.
Specifications for the D+ terminal used for charging alternator control and monitoring.
Description of the sensor common point terminal for analogue sensors.
Details on USB, RS-485, and CAN communication ports.
Physical dimensions of the controller and panel cut-out requirements.
Instructions and illustrations for mounting the controller into a panel.
Detailed description of each terminal on the rear of the controller.
Illustrative wiring diagrams for the SGC 420 controller.
Explanation of the monitoring mode and how display views shift.
Step-by-step guide to entering and navigating the controller's configuration mode.
Overview of the parameters that can be configured on the controller.
Configuration options related to the controller module settings.
Configuration options for digital inputs, including source, polarity, and action.
Configuration details for analogue inputs, including sensor selection and calibration.
Configuration of digital output sources and activation settings.
Configuration of various timers, including cranking and start/stop delays.
Configuration settings for the generator, including voltage and frequency monitoring.
Configuration for mains monitoring, including voltage, frequency, and phase reversal.
Configuration settings related to engine parameters and monitoring.
Settings related to maintenance alarms and due dates.
Configuration of password IDs for controller access.
Configuration options specifically for the rotary actuator on SGC 421.
Guide to selecting sources for digital inputs displayed on the controller.
Guide to selecting sources for digital outputs.
Detailed explanation of the Auto mode operation, including Site Battery Monitoring.
How to operate the controller in Manual mode.
Flowcharts and explanations of engine start and stop sequences.
How the controller detects load in Auto mode using contactor outputs.
Methods used by the controller to detect load in Manual mode.
General information about controller features.
How the controller exits configuration mode automatically.
Functionality for displaying engine running hours in load groups.
Explanation of alarm types, actions, causes, and handling.
Introduction to the Modbus protocol used by the SGC 420.
Information on how to connect the controller for Modbus communication.
Supported Modbus functions and their descriptions.
Configuration parameters for RS-485 Modbus communication.
Mapping of registers for reading data using Modbus function code 03.
Mapping of registers for writing data using Modbus function code 16.
Overview of engine communication capabilities via CAN bus.
Information about default engine communication settings.
List of engine manufacturers supported for J1939 communication.
How to configure the display to show ECU values.
Detailed steps for configuring engine communication using DEIF Smart Connect software.
Information on using the generic J1939 protocol for engine communication.
Introduction to the CAN communication protocol supported by SGC 420/421.
Details on the structure of CAN communication data and commands.
Structure of command messages sent over CAN.
Common faults, their causes, and remedial actions for the controller.
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