Toshiba International Corporation

Related Information

Regenerative power ride-through level

Function
This parameter sets the action when undervoltage of the power circuit is detected.
When undervoltage is detected, it displays "MOFF" and stops. Alarm can be output from the output terminal.
If you want to trip, set by [F627: Undervoltage trip]. The trip display is "UP1".

Detection level of undervoltage alarm "MOFF"
Exclude [F625: Undervoltage detection level] = "80: Auto"
The occurrence level of MOFF alarm is the setting value of [F625]. MOFF alarm will be cleared at the setting value of [F629: Regenerative power ride-through level].

When [F625: Undervoltage detection level] = "80: Auto"
Both occurrence level and clear level of MOFF alarm is followed by the level specified by the internal setting.

Setting the [F627: Undervoltage trip]
0: Disabled
The inverter stops but does not trip. (Failure signal FL disabled)
1: Enabled
The inverter trips after undervoltage is detected for the period of time set by [F628: Undervoltage detection time] or longer. The trip display is "UP1". (Failure FL enabled)

Memo
While the inverter is stopped, undervoltage is not detected.

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.

Welcome to Toshiba International Corporation's Download Site!

Download Registration