Corrected from:i700 servo inverter, V2: from V02.11.12.12375
i700 servo inverter, V1: from V01.11.12.12374
The actual torque saved when applying the holding brake is limited to the selected torque limits (0x60E0, 0x60E1).
In this way, the starting torque can be reached when the brake is released and the condition for brake control can be met.
What happens?
The brake can no longer be released if, previously, when applying the brake, an excessive torque value has been saved.
In this case, the controller cannot reach the selected starting torque and thus not meet the condition for brake release.
When does this behaviour occur?
The behaviour occurs if the internal brake functionality of the i700 is used, in particular when operating the i700 servo inverter under control systems from other manufacturers.
Unlike with the Lenze setting, during brake release, the previously saved actual torque (stopping value) is used as starting torque for the load transfer.
The described behaviour particularly occurs after stopping along a steep ramp (high torque).
Which products are affected?
i700 servo inverter, V1
i700 servo inverter, V2
Short-term measures:
Perform the load transfer during brake release like in the Lenze setting:
Evaluation/recommendations:
The internal i700 brake functionality is mainly used when the i700 is operated under control systems from other manufacturers.
When operating the i700 in the Lenze system, the brake functionality of the motion axis is usually used.
Here, the above-described behaviour does not occur.
