Mitsubishi Electric NZ2GN2S1-16D - Examples of Troubles with the I;O Module; Troubleshooting for Input Circuit

11 TROUBLESHOOTING
11.5 Examples of Troubles with the I/O Module
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11.5 Examples of Troubles with the I/O Module
Troubleshooting for input circuit
This section describes the troubleshooting for input circuit.
An input signal does not turn off No.1
■Cause
Drive by a switch with LED indicator
■Action
Connect an appropriate resistor as shown below so that a current through the input module may become lower than the OFF
current.
For the calculation example of a resistor to be connected, refer to the following.
DC input (sink)
Input
module
Leakage current
DC input (sink)
Input
module
Resistor