This digital input module receives discrete signals from field sensors and switches. It sends this status data to the main drive controller for logic execution. You can install this board into any GE drive system rack slot. The unit suits limit switches, push buttons, and proximity sensor applications.
Technical Specifications & Key Parameters
| Parameter | Detail |
|---|---|
| Product Model | GE 531X175SSBAMH2 |
| Category | Digital Input Module |
| Dimensions (L x W) | 230 mm x 160 mm |
| Weight | 0.45 kg (0.99 lbs) |
| Number of Inputs | 24 digital input points |
| Input Voltage Range | 24 V DC (10–30 V DC range) |
| Input Current | 8 mA typical at 24 V DC |
| Input Type | Sink/source selectable (per group) |
| Response Time | 1 ms ON to OFF, 1 ms OFF to ON |
| Optical Isolation | 2500 V RMS between field and logic |
| Energy Storage | 330 µF capacitor (holds last state for 8 ms) |
| Component Count | 48 resistors, 24 optocouplers, 12 capacitors |
| Operating Voltage | 5V DC from backplane |
| Current Draw | 180 mA at 5V DC |
| Connector Type | Two 20-pin ribbon cable headers |
| Status LEDs | 24 green indicators (one per channel) |
Detailed Feature Overview
GE 531X175SSBAMH2 provides 24 digital inputs for monitoring field devices. Each input features optical isolation for excellent noise rejection. The isolation barrier withstands 2500 V RMS between field wiring and logic. Consequently, electrical surges do not damage the sensitive drive controller.
You can configure each input group as sink or source type wiring. This flexibility matches any sensor or switch manufacturer. The module responds to input changes within 1 millisecond. Therefore, it captures fast signals like emergency stops or high-speed counters. A 330 µF capacitor stores energy for short power dips. It holds the last valid input state for 8 milliseconds.
Component Layout and Signal Flow
Forty-eight resistors set the correct current levels for each input channel. Twenty-four optocouplers convert field signals to logic-level voltages. Twelve capacitors filter noise on both power and signal lines. The module draws only 180 mA from the 5V DC backplane supply. Two 20-pin ribbon cables connect to the terminal boards.
Status Indication and Installation
Twenty-four green LEDs provide clear visual feedback for each input channel. An illuminated LED confirms active voltage at the input terminal. A dark LED indicates an OFF state or a missing field supply. The module weighs only 0.45 kg for simple handling. Insert the board firmly into any drive system rack slot. Operating temperature ranges from 0°C to 60°C reliably. Keep humidity below 90% without condensation for long life.
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