Immediate STO with SS1 and additional fault QSP (corrected from V03.19.00)

Corrected from:
Library:  L_MC1P_MotionControlBasic  from V03.19.00.101
 
Response of the new version:
There is no unexpectedly controller inhibit from the Axis_Ref.
 
What happens?
With an SS1, the drive is not stopped as expected, but the inverter gets an controller inhibit before reaching standstill.
 
When does the behaviour occur?
When a monitoring with reaction Fault-> Fast Stop [19] is triggered while an SS1 sequence is active.
The SS1 is triggered by the block L_MC1P_Limiter.
Typically, the L_MC1P_Limiter is only used to trigger an SS1 in the i950 with Extended Safety.
 
Which products are affected?
Library L_MC1P_MotionControlBasic
 
Short-term measures:
An update of the library is required.
For i950 with programmable TA, this is done by updating the basic device firmware to V01.03.07 or higher.
In all other cases the library in the PLC project must be updated.
 
Evaluation / recommendations:
Unexpected blocking of the inverter from the Axis_Ref causes the drive to spin out or the holding brake to engage. This can also occur at high speeds.
The actual safety function is not restricted.
Whether a monitoring reaction with Fault-> Fast Stop [19] can occur at all during the run due to an SS1 request depends on the application.
So far, the behavior has only been observed if an additional restriction occurs in TM Winder (see version info document ID 201900193).
 
Automatic Translation  

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/201900195/1/
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