Mitsubishi Electric NZ2MF2S1-32D User Manual page 107

An input signal does not turn off No.5
■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
DC input
Input module
DC input
Input module
11 TROUBLESHOOTING
11.4 Examples of Troubles with the I/O Module
11
105