Siemens Micromaster 440 Operating Instructions Manual page 98

6 Troubleshooting
F0452 Belt Failure Detected
Possible Causes
Load conditions on motor indicate belt failure or mechanical fault.
Diagnose & Remedy
Check the following:
1. No breakage, seizure or obstruction of drive train.
2. If using an external speed sensor, check for correct function. Check parameters:
! P2192 (delay time for permitted deviation)
3. If using the torque envelope, check parameters:
! P2182 (threshold frequency f1)
! P2183 (threshold frequency f2)
! P2184 (threshold frequency f3)
! P2185 (upper torque threshold 1)
! P2186 (lower torque threshold 1)
! P2187 (upper torque threshold 2)
! P2188 (lower torque threshold 2)
! P2189 (upper torque threshold 3
! P2190 (lower torque threshold 3)
! P2192 (delay time for permitted deviation)
98
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
Issue 12/02
OFF2