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Power Supply Monitoring Function - Mitsubishi Electric NZ2GF12A4-16D User Manual

Cc-link ie field network waterproof/dustproof remote i/o module.
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8.8

Power Supply Monitoring Function

This function monitors the voltage status of each of the module-and-sensor power supply and load power supply and notifies
users of the status with the PW LED and L PW LED.
By using Power supply monitor request flag (RWw3.b0), a moderate error is generated when the power supply is off. Thus,
the on/off state of the power supply is notified and the output module can be stopped.
Enabling the power supply monitoring function is recommended because operating the module with the power
supply voltage unstable may cause incorrect input or output.
Operation of the power supply monitoring function
When an error occurs on the module-and-sensor power supply or load power supply while the Power supply monitor request
flag (RWw3.b0) is on, a moderate error occurs. The following table lists errors of each power supply and bits to be turned on.
Error cause
Abnormal power supply
Module-and-sensor power supply
Load power supply
When using this function, check that the load power supply stabilizes before turning on Power supply monitor request flag
(RWw3.b0). When turning off the load power supply, turn off Power supply monitor request flag (RWw3.b0) in advance.
Setting and checking the power supply monitoring function
Item
Power supply monitor request flag (RWw3.b0)
Power supply monitor state flag (RWr3.b0)
8 FUNCTIONS
8.8 Power Supply Monitoring Function
Error code
Description
Low voltage
0103H
Overvoltage
Low voltage
Overvoltage
Description
Sets whether to enable or disable the power supply monitoring function.
Indicates whether the power supply monitoring function is enabled or
disabled.
Bit 0 of Error code details 1 turns on.
Bit 1 of Error code details 1 turns on.
Bit 2 of Error code details 1 turns on.
Bit 3 of Error code details 1 turns on.
Page 152 Power supply
Reference
monitor request flag
(RWw3.b0)
Page 149 Power supply
monitor state flag (RWr3.b0)

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