Siemens MICROMASTER 411 Operating Instructions Manual page 86

6 Troubleshooting
Change value of P2267
Adjust feedback gain
F0450 BIST Tests Failure
Possible Causes
Fault value = 1: Some power section tests have failed
Diagnose & Remedy
Hardware defect, contact Customer Support / Service Department
F0452 Belt Failure Detected
Possible Causes
Load conditions on motor indicate belt failure or mechanical fault.
Diagnose & Remedy
Check the following:
No breakage, seizure or obstruction of drive train.
If using an external speed sensor, check for correct function. Check parameters:
P2192 (delay time for permitted deviation)
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)
86
2: Some control board tests have failed
4: Some functional tests have failed
8: Some IO board tests have failed (MM 420 only)
16: Internal RAM failed on power-up check
MICROMASTER 411 & COMBIMASTER 411
Issue 03/01
OFF2
OFF2
Operating Instructions
6SE6400-5CA00-0BP0