Mitsubishi Electric NZ2GFSS2 32D S1 User Manual page 69

Wiring of the external power supply
If the external power supply is off when the module power supply is turned on, a moderate error or minor error (external power
supply voltage error) occurs. Power on the external power supply at the same timing of power-on of the module power supply.
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6 INSTALLATION AND WIRING
67
6.4 Wiring