Siemens SINAMICS G120 Operating Instructions Manual page 275

Low voltage converters, chassis and wall/panel mounted devices with cu230p-2 control units
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Stall protection
Principle of operation
If the value in r1746 exceeds the value of p1745 for the time set in p2178, using bits 7 of
status word 2, for monitoring functions (r2198.7) the converter outputs the "Motor stalled"
message.
Applications: General system protection
Settings
Parameters
p1745
p2178
For blocking protection below the current/torque limit, see paragraph "Monitoring
pumps/fans" in the Section Load monitoring (Page 276).
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
Description
Motor model fault threshold value stall detection (factory setting: 5 %)
If the motor stalls too early with this setting, then using the trace function you have
the option of determining a better value. To do this, set p1745 = 100.
Motor stalled delay time (factory setting: 0.01 s)
Advanced commissioning
6.7 Application-specific functions
275

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