Behavior of the new version:
Description of behavior:
After transferring the safety parameters to the i950 sporadic error messages from the safe position and speed evaluation "SSM - Safe Speed Monitor" are reported. Error message: '0xFFAF - SSM: Error speed comparison', '0xFFAC - SSM: Error encoder', '0xFFAD - SSM: error resolver'
These error messages cannot be permanently reset by an error acknowledgement (AIE).
Under what conditions does the behavior occur?
The behaviour can occur after a parameter set transfer if a safe encoder system is parameterized in the objects 0x2878:001 and/or 0x287A:001. If the connected encoder system is moved during parameter set transfer, the listed error messages may be triggered after parameter set transfer.
Affected products:
i950 Extended Safety (ES)
Short-term measures / Rating/Recommendations:
The error message can be reset by executing the device command '0x2022:041 - Restart Extended Safety' or by switching the device to mains power.
After completion of the safe parameterization phase, it is recommended to replace the drive controller i950 or the extended safety module by resetting/mains switching in order to avoid availability problems with the system. <
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