Corrected from:
- 9400 Highline V15.01.01.00
Response of the new version:
The safe parameter set is loaded without error message even after a very short power switch or SW restart, e.g. by "Reset safe parameters" or "Save safe parameters".
What happens?
With the actions "Reset safe parameters" or "Save safe parameters" or with a short interruption of the 24V supply, a message is sporadically displayed that there is a data error in the safe parameter set. This means that STO cannot be cancelled.
When does the behaviour occur?
The behavior occurs sporadically if the 24V supply is interrupted for less than 1 second or during a reboot of the safety module operating system. This reboot is also performed by the actions "Reset safe parameters" or "Save safe parameters".
Which products are affected?
- 9400 Servo PLC V09.01.01 with a control card of revision 3 (C210/1 = 3x) with a safety module SM30x
Short-term measures:
Switch off the 24V supply to the basic unit 9400 and/or the safety module for longer than one second and then switch it on again.
Evaluation / Recommendations:
This behavior can occur after a device exchange (9400 with old control card against 9400 with Rev. 3 control card). Due to the sporadic occurrence, the probability of detection by the end user before commissioning is low. The corrective action is typically applied intuitively, also by the plant operator.
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