Control power option failure detection

Function
When the control power supply option unit (CPS002Z) is used, if the unit does not output the voltage for 15 minutes or more due to some error, this function can activate alarm display or tripping.

How to select a setting value
0: Alarm (no detection without option)
This is selected when the control power supply backup is not necessary.
When no control power supply is input between terminals [+SU] externally, use this setting.
Also when the control power supply backup is selected, when failure occurs during run, the inverter output is shut off and the alarm "COFF" is displayed. When failure exists already at the time of voltage input, errors are not detected.
1: Alarm
This is selected for the control power supply backup (alarm output).
When voltage of the control power supply which is input to terminal [+SU] drops, the inverter output is shut off, and the alarm "COFF" is displayed.
Once "COFF" has occurred, the alarm is not reset even when the control power supply voltage is recovered to the normal level. The alarm can be reset by turning off the power circuit.
2: Trip
This is set for the control power supply backup (trip output).
This option enables the inverter trip when voltage of the control power drops. The trip display is "E-29".
Different from the normal trip, the trip is maintained regardless of the setting status of [F602: Trip record retention].
To reset the trip, set [F647: Control power option failure detection] to "0" and "1" and perform the reset operation.
When an inverter failure occurs while the control power supply has an failure as follows, the main power supply may turn ON/OFF repeatedly. In such a case, select "1: Retain at power off" in [F602: Trip record retention].

Please reference latest AS3 Instruction Manual more details or latest information.

AS3 fault codes, descriptions, symptoms and suggested remedies can be found in the below links. Each fault code can also be linked to directly from the AS3 by accessing the QR code on a mobile device while the AS3 is currently experiencing the fault.