Siemens MICROMASTER 440 Series Operating Instructions Manual page 76

International English
Fault Possible Causes
Both JOG right and JOG left
A0923
(P1055/P1056) have been requested.
Both JOG Left and
This freezes the RFG output frequency at
JOG Right are
its current value.
requested
Load conditions on motor indicate belt
A0924
failure or mechanical fault.
Belt Failure
Detected
MICROMASTER 440 Operating instructions
6SE6400-5CA00-0BP0
Diagnose & Remedy
Check the following:
1. No breakage, seizure or obstruction of drive train.
2. Proper operation of external speed sensor, if in
use.
3. P0402 (pulse per min at rated speed), P2164
(Hysteresis freq. deviation) and P2165 (delay
time for permitted deviation) must have correct
values.
4. P2155 (threshold frequency f1), P2157 (threshold
frequency f2)P2159 (threshold frequency
f3)P2174 (upper torque threshold 1)P2175 (lower
torque threshold 1)P2176 (delay T_Torque)P2182
(upper torque threshold 2)P2183 (lower torque
threshold 2)P2184 (upper torque threshold 3) and
P2185 (lower torque threshold 3) must have
correct values.
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6 Troubleshooting
Reac-
tion
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