i950: Synchronous operation with i700 results in a time offset of 120 us and consequently a position offset proportional to speed (no change intended)
Corrected from:
Servo Inverter i950 FW: (currently no change intended)
Response of the new version: Based on a risk-benefit analysis, Lenze decided not to make any changes, as a simple remedy is available. A change in the internal temporal behaviour of the drive controller would require extensive intervention in the internal software structure.
What happens?
A time offset of 120 microseconds occurs during synchronous operation of the i950 Servo Inverter and i700 Servo Inverter. As a result, a speed-proportional position offset occurs. At standstill (speed = 0) there is no longer a position offset.
When does this behavior occur? During synchronous operation of axes from the i950 Servo Inverter and i700 Servo Inverter device series in the mix. This is due to the device-specific properties of the device series with regard to timing during setpoint transfer and processing in the internal control cycle.
Which products are affected? Servo Inverter i950 FW
Short-term measures, evaluation/recommendations: For synchronous applications, only use drive controllers of the same series. In practice, the described behavior is only relevant for synchronous applications, such as printing machines, where exact position synchronization is important.
