Advanced commissioning
6.21 Monitoring the driven load
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
233
6.21.3
Blocking protection
In applications with extruders or mixers, the motor can block for an excessive mechanical
load. For a blocked motor, the motor current corresponds to the set current limit without the
speed reaching the specified setpoint.
If the speed lies below the speed threshold p2175 for the time p2177 while the motor current
reaches the current limit, the inverter signals "Motor blocked" and fault F07900.
Parameter
Description
r0063
Actual speed value [rpm]
[0] = Unsmoothed
[1] = Smoothed with p0045
p2175
Motor blocked speed threshold (factory setting: 120 rpm)
p2175 = 0: Blocking protection deactivated
p2177
Motor blocked delay time (factory setting: 3 s)
r2198
Status word monitoring 2
r2198.06 = 1: Motor blocked