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Mitsubishi Electric NZ2GN2B1-32D User Manual Page 107

Programmable controller cc-link ie tsn remote i/o module.
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A load operates only by turning on the external power supply (transistor output).
■Cause
• The external power supply is connected with its polarity reversed.
Load
Y0
Incorrect
External
power
supply
COM-
Output element
protection diode
Source output
Load
Y0
Incorrect
COM+
Output element
protection diode
• The reversed polarity may allow current to flow via the output element protection diode into the load.
■Action
Connect the external power supply with the correct polarity.
Correct
Correct
External
power
supply
11 TROUBLESHOOTING
11.5 Examples of Troubles with the I/O Module
11
105

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