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GE 531X301DCCAXM
Product Overview & Core Function (as Mark VI Discrete Input Module)
The 531X301DCCAXM is documented as a 32-channel discrete input module used to acquire ON/OFF status signals from field devices such as switches, pushbuttons, limit switches, and relay contacts.
Technical Specifications
- Manufacturer: GE
Detailed content
- Series: GE Mark VI Distributed Control System (per supplier documentation)
- Channels: 32 discrete (digital) inputs
- Input Signal Type: 24 VDC active input (sinking/sourcing configurable)
- Input Voltage Range: 12–30 VDC
- Isolation: Grouped every 8 channels, 500 VDC inter-group isolation
- Resolution: 1-bit (ON/OFF)
- Scan Period: ≤ 100 ms (all channels)
- Backplane Bus: Mark VI standard VME/PCI backplane
- Supply Voltage: +5 VDC (backplane powered)
- Input Current: Typical 3 mA at 24 VDC
- Operating Temperature: 0 to +60 °C
- Storage Temperature: –40 to +85 °C
Structural & Functional Features
- Every 8 channels form an isolated group
- Supports both dry (passive) and wet (active) contact inputs
- Built-in input filtering for noise immunity
- LED indicators for per-channel real-time status
- Supports hot-swappable replacement
Alternative Documentation Note
Some supplier sources document the 531X301DCCAXM1 (the “X” revision) as a Drive Control Card within GE’s AC/DC2000 drive series, featuring 3 processors, 16-bit resolution, reset circuitry, and dual-ported RAM communications. This highlights the importance of verifying the exact board revision and application context.
Application Scenarios
Gas turbine control, steam turbine control, combined-cycle power plants, and industrial process control (per the Mark VI discrete input documentation). Also applicable to GE AC/DC2000 drive systems (per the drive control card documentation).
Installation & Usage Notes
- Insert into Mark VI cabinet standard slot.
- Use shielded cable for field wiring; ground shield at the control cabinet end only.
- Input signal voltage must not exceed 30 VDC; never connect AC signals to DC input channels.
- Regularly inspect terminal tightness.
