InteliDrive DCU Industrial 3.4.0 Global Guide
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Wiring
Analog inputs connection
Image 8.6 Two wire resistor sensor
Image 8.7 Two wire current sensor.
Image 8.8 Three wire current sensor.
Image 8.9 Extension of voltage measuring range.
Note: It is not necessary to connect analog inputs COM terminal to negative power supply.
Long wires resistance compensation
Process of compensation:
1. Short all wires to analog sensors at the end (replace sensors with shorting links).
2. Hold the compensation button on IGS-PTM through the hole in upper cover when switching IGS-PTM on.
3. Result of compensation will be shown in 2 seconds by flashing of POWER LED.
One flash and pause – compensation fail.
Three flashes and pause – compensation success.
4. Measured lead’s resistance is stored in EEPROM memory (separate value for each input) and is subtracted
from measured value when resistance measuring.
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