Technical Specifications Supply: 18–32 V DC; speed input: 1 channel, 100–10,000 Hz; 1× 4–20 mA output; 4 SPDT relay outputs, 5 A @ 250 V AC; 4 digital inputs; 12-bit resolution; -40 °C to +70 °C; IP20.
Functional Features PID speed control; overspeed/underspeed relay trip; idle/rated speed indication; soft start; field adjustable trip points.
Application Scenarios Engine control with alarm annunciation, pump/compressor protection, generator set speed tripping, standalone control panels.
Performance Parameters Speed regulation: ±0.5% FSO; relay operate time: < 15 ms; trip point accuracy: ±1% FSO.
Material Composition ABS housing; FR-4 PCB; MCU; silver-alloy contact relays; screw terminals.
Structural Characteristics Rack plug-in module; front status LEDs; rear terminal block; accessible adjustment controls.
Working Principle Measures speed, executes PID control to output 4–20 mA; relays switch state at programmed speed thresholds for alarm/trip functions.
Installation Requirements Wire relay outputs to alarm/trip circuits; set trip points via adjustments; tune control dynamics.
Usage Notes Do not exceed relay contact ratings; add arc suppression for inductive loads; verify trip points during commissioning.
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