Siemens CU240B-2 - Page 317

Advanced commissioning
6.7 Application-specific functions
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
317
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
Description
p1745
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.
p2178
Motor stalled delay time
(factory setting: 0.01 s)