Siemens SINAMICS G130 - Block Protection

Functions, monitoring, and protective functions
9.4 Monitoring and protective functions
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A
479
9.4.3
Block protection
Description
The "Motor blocked" fault is only triggered when the speed of the drive is below the
adjustable speed threshold in p2175. With vector control, it must also be ensured that the
speed controller is at the limit. With V/f control, the current limit must already have been
reached.
Once the ON delay (p2177) has elapsed, the message "Motor locked" and fault F07900 are
generated.
The blocking monitoring enable can be deactivated via p2144.
Figure 9-27 Blocking protection
Function diagram
FP 8012
Signals and monitoring functions - torque messages, motor locked/stalled
Parameter
•
p2144
BI: Motor stall monitoring enable (negated)
•
p2175
Motor locked speed threshold
•
p2177
Motor locked delay time