Series: Mark VI / VIe / VIeS (Turbine Control System)
Type: I/O Module
Origin: United States (some versions assembled in Switzerland or China)

Technical Specifications

Electrical Parameters

• Digital Inputs: 16 channels
  – 24 V DC signal, compatible with dry/wet contacts

• Analog Inputs: 2 channels
  – 12-bit resolution
  – Supports 0–10 V or 4–20 mA input signals

• Outputs: 12 relay outputs
  – Contact capacity: 5 A / 250 V AC
  – Supports NO / NC switching

• Communication Interface: RS-485
  – Supports Modbus RTU protocol
  – Baud rate adjustable: 9 600 – 115 200 bps

Core Functions

• Data Acquisition
  – Speed acquisition via pulse or encoder input (up to 100 kHz pulse frequency)
  – Temperature acquisition via PT100 / PT1000 sensors (3-wire, accuracy ±0.5 °C)
  – Pressure acquisition via 4–20 mA transmitters

• Signal Processing
  – Digital filtering (cut-off frequency 10–1 000 Hz) for noise suppression
  – Cold junction compensation for thermocouple inputs
  – Linearization of non-linear sensor signals (e.g., flow)

• Control Signal Output
  – Control electromagnetic valves with PWM speed regulation (cycle 10–1 000 ms)
  – Directly drive contactor coils to start/stop motors (contact life ≥100 000 times)
  – Emergency stop function when speed exceeds set threshold

• Protection Functions
  – Channel fault detection with open/short-circuit alarm (real-time LED indication)
  – Records last 100 error logs of communication interruptions (with timestamps)
  – Configurable power-off behavior (maintain output or switch to safe mode)