Corrected from:i700 servo inverter, series devices (V02.x): from V02.10.12.11906
existing devices (V01.x): from V01.10.12.11905
Response of the new version:
In the event of a short-time interruption of the 24-V supply, the home position no longer gets lost.
The Hiperface absolute value encoder is initialised correctly and the homing state remains unchanged.
For Hiperface absolute value encoders with a long initialisation process, the monitoring function of the 24-V supply may respond, if necessary. This error message must be reset after booting.
What happens?
The "Home position known" (xIsHomed) homing state in the controller and, as a result, the calculated home position get lost. Homing must be repeated for the axis to operate the axis again.
As a result of a short-time, actually impermissible, interruption of the 24-V supply, an initialisation process is initiated for the i700 and the Hiperface absolute value encoder. Due to the timing during the exchange of information between the i700 and the controller in the initialisation process, the home position gets lost.
When does this behaviour occur?
- i700 servo inverter operation with Hiperface SinCos absolute value encoder as feedback system and
- interruption of the 24-V supply voltage for less than approx. 2 seconds.
Not affected:
The above-described behaviour does not occur if the 24-V supply is interrupted for more than approx. 2 seconds or permanently switched off.
Which products are affected?
i700 servo inverter
Short-term measures:
Ensure a stable and uninterrupted 24-V supply of the drive controller.
Evaluation/recommendations:
Proper controller operation requires a stable and uninterrupted 24-V supply of the control electronics.
Users have to ensure this by an appropriate configuration and, if necessary, buffering of the 24-V supply.
