Stall Protection (Only For Vector Control) - Siemens SINAMICS S150 NEMA Operating Instructions Manual

Functions, monitoring and protective functions
9.5 Monitoring functions and protective functions
Function diagram
FP 8012
Parameters
• p2144
• p2175
• p2177
9.5.4

Stall protection (only for vector control)

Description
If, for closed-loop speed control with encoder, the speed threshold set in p1744 for stall
detection is exceeded, then r1408.11 (speed adaptation, speed deviation) is set.
If the fault threshold value set in p1745 is exceeded when in the low speed range (less than
p1755 x (100% - p1756)), r1408.12 (motor stalled) is set.
If one of these two signals is set, then after the delay time in p2178, fault F07902 (motor
stalled) is returned.
Figure 9-51 Stall protection
Function diagrams
FP 6730
FP 8012
700
Signals and monitoring functions - torque messages, motor locked/stalled
BI: Motor stall monitoring enable (negated)
Motor locked speed threshold
Motor locked delay time
Vector control - Interface to Motor Module (ASM, p0300 = 1)
Messages and monitoring - Torque messages, motor blocked/stalled
Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives