Siemens MICROMASTER 440 Series Operating Instructions Manual page 73

6 Troubleshooting
Fault Possible Causes
No setpoint values from CB
F0070
(communication board) during telegram
CB setpoint fault
off time
No setpoint values from USS during
F0071
telegram off time
USS (BOP-link)
setpoint fault
No setpoint values from USS during
F0072
telegram off time
USS (COMM link)
setpoint fault
Broken wire
F0080
Signal out of limits
ADC lost input
signal
External fault triggered via terminal inputs
F0085
External Fault
Software error or processor failure
F0101
Stack Overflow
PID Feedback below min. value P545.
F0221
PID Feedback
below min. value
PID feedback above max. value P544.
F0222
PID Feedback
above max. value
Fault value:
F0450
1. Some power section tests have failed
BIST Tests Failure
2. Some control board tests have failed
4. Some functional tests have failed
8. Some IO module tests have failed.
(MM 420 only)
16. Internal RAM failed on power-up
check
Load conditions on motor indicate belt
F0452
failure or mechanical fault.
Belt Failure
Detected
F0499
Fault Warning
Separation
Motor power does not correspond to the
A0501
inverter power
Current Limit
Motor leads are too short
Earth faults
Overvoltage limit is reached.
A0502
This warning can occur during ramp
Overvoltage limit
down, if the dc-link controller is disabled
(P1240 = 0).
72
Diagnose & Remedy
Check CB and communication partner
Check USS master
Check USS master
Disable terminal input for fault trigger.
Run self test routines
Change value of P545.Adjust feedback gain.
Change value of P544.Adjust feedback gain.
Drive may run but some features will not work
properly.
Replace drive.
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.
Check the following:
1. Motor power (P0307) must correspond to inverter
power (P0206).
2. Cable length limits must not be exceeded.
3. Motor cable and motor must have no short-
circuits or earth faults
4. Motor parameters must match the motor in use
5. Value of stator resistance (P0350) must be
correct
6. Motor must not be obstructed or overloaded
Increase the ramp-up-time.
Reduce the boost.
If this warning is displayed permanently, check drive
input voltage .
MICROMASTER 440
http://nicontrols.com
International English
Operating instructions
6SE6400-5CA00-0BP0
Reac-
tion
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
--
--