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Related Information
Simplified Operations  |  Parameter Setting  |  Monitoring the Operation Status  |  Trip Information and Remedies  |  Connection Equipment  |  Specifications  |  Warranty Registration

OCr: Overcurrent (Braking resistor)

Cause:
1) When "Enabled" is set in [F304: Dynamic braking, OLr trip]:
• The braking resistor is not connected.
• The braking resistor connection is disconnected.
• A braking resistor with a resistance value under the minimum allowable resistance value is connected.
2) Short circuit occurred between [PB] and [PC/-] terminals.
3) IGBT fault on the dynamic braking drive circuit control.

Clearing:
1) Check if a correctly sized braking resistor is connected. If a braking resistor is not necessary, set "Disabled" in [F304].
2) Check for problems on impedance of the braking resistor, wiring, terminal block, etc.
3) Fault in internal inverter. Contact your Toshiba distributor.
(Note: This trip can not be reset and to clear it, turn off the power amd turn it on again).

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.

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