Corrected from:
- i700 servo inverter (double inverter) from V01.09.05.11080
Response of the new version:
The drive performance does not change after power-on.
What happens?
After power-on, the controller shows a different control loop stability.
The following symptoms may occur:
- Increased noise.
- Based on the requirement of a stable drive behaviour, the gain of the control loop cannot be set that high.
This behaviour is due to internal calculations in the control loops and a possible time offset in the timing of setpoint and actual value acceptance in the controller.
When does this behaviour occur?
In some cases after power-on or a new synchronisation process.
Which products are affected?
- i700 servo inverter (double inverter)
Short-term measures:
Select the parameters for the position and the speed control loop less dynamic - a little bit farer away from the stability limit.
Or switch on the controller once again if the function restriction occurs and re-initialise it.
Evaluation/recommendations:
