Programmable, see 31.24 Stall function

Selected motor, the motor is operating in the stall region because
of excessive load or insufficient motor power. See also 7121.
The motor torque exceeded 31.25 Stall torque level for a time
longer than 31.28 Stall time while the speed feedback was below
31.26 Stall speed level.
Check:
− The motor load/mechanics (e.g. brake).
− The drive ratings.
− For correct field current.
− The settings of 31.24 Stall function, 31.25 Stall torque level,
31.26 Stall speed level and 31.28 Stall time.
− The settings for current and torque limits in group 30 Control
limits.