Core Functions

SCR gate drive (single-phase)

SCR operating status monitoring

AC/DC conversion via onboard switching power supply

Fiber optic data communication

Input Specifications

Input voltage: 120 VAC ±20% (96–144 VAC)

Frequency: 50 / 60 Hz

Maximum power consumption: 350 VA

Output Specifications

Gate pole driver output: ±25 V

Switching power supply outputs:

Provides regulated power for onboard control circuitry

Supplies gate drive circuitry

Interface Configuration

Fiber optic interfaces:

15 fiber optic connectors total

1 transmitter + 14 receivers

Test points:

30 total test points

9 dedicated to Gate A/B drive signals

12 dedicated to SCR status monitoring signals

Drive Circuit Configuration

Two independent gate drive channels (Gate A / Gate B)

Compatible with single-phase symmetrical SCR bridge drive

Supports stable and synchronized firing of SCR devices

System Compatibility

LS2100 static starter systems

LCI (Load Commutated Inverter) systems

High-voltage 12-pulse converters:

2080 VAC

3300 VAC

Key Features
Integrated Drive & Monitoring

Combines SCR gate pole drive, status monitoring, and switching power supply on a single module

Reduces external wiring complexity and improves overall system reliability

Fiber Optic Isolated Communication

15 fiber optic channels provide full high-/low-voltage isolation

Effectively eliminates electrical interference

Ensures stable communication between the LCI controller and SCR bridge

Accurate Fault Diagnosis

Comprehensive coverage of drive voltage and status signals through 30 test points

Enables fast on-site troubleshooting and precise fault localization

High-Voltage System Adaptation

Designed for 2080/3300 VAC high-voltage 12-pulse converters

Suitable for power plants and large industrial motor starting applications

Modular Design

Standard card-rail installation

Directly interchangeable with modules of the same series

Simplifies maintenance, replacement, and spare parts management