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Mitsubishi Electric NZ2GF12A4-16D User Manual Page 138

Cc-link ie field network waterproof/dustproof remote i/o module.
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An input signal does not turn off No.2
■Cause
By using two power supplies, a sneak path is configured.
E1
E2
E1 > E2
■Action
• Use one power supply.
• To prevent the sneak path, connect a diode as shown below.
E1
E2
A signal incorrectly inputs data
■Cause
Noise is taken as input data.
■Action
• To prevent excessive noise, avoid installing power cables together with I/O cables.
• Connect surge absorbers to noise-generating devices such as relays and conductors using the same power supply or take
other noise reduction measures.
11 TROUBLESHOOTING
11.6 Examples of Troubles with the I/O Module
DC input
Input module
DC input
Input module

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