Siemens MICROMASTER 420 Operating Instructions Manual page 71

Issue 04/02
Fault Possible Causes
F0051 Reading or writing of the non-volatile
Parameter
parameter storage has failed
EEPROM Fault
F0052 Reading of the powerstack
Powerstack
information has failed or the data is
Fault invalid
F0060 Internal communications failure
Asic Timeout
F0070 No setpoint received from
Communicatio communications board during
ns board
telegram off time
setpoint error
F0071 No response during telegram off time
No Data for via USS (BOP link)
USS (RS232
link) during
Telegramm Off
Time
F0072 No response during telegram off time
No Data from
via USS (COM link)
USS (RS485
link) during
Telegram Off
Time
F0080 Broken wire
Analogue Signal out of limits
input - lost
input signal
F0085
External fault is triggered via terminal
External Fault inputs
F0101 Software error or processor failure
Stack
Overflow
F0221 PID Feedback below minimum value
PI Feedback
P2268
below mini-
mum value
F0222
PID Feedback above maximum value
PI Feedback P2267
above
maximum
value
F0450 Fault value
(Service mode 1 Some of the power section tests
only) have failed
BIST Tests 2 Some of the control board tests
Failure
have failed
4 Some of the functional tests
have failed
8 Some of the IO module tests
have failed
16 The Internal RAM has failed its
check on power-up
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
Diagnose & Remedy
1. Factory reset and new
parameterization
2. Change inverter
Change inverter
1. Acknowledge fault
2. Change inverter if repeated
1. Check connections to the
communications board
2. Check the master
1. Check connections to the
communications board
2. Check the master
1. Check connections to the
communications board
2. Check the master
Check connection to analogue input
Disable terminal input for fault trigger
1. Run self test routines
2. Change inverter
1. Change value of P2268
2. Adjust feedback gain
1. Change value of P2267
2. Adjust feedback gain
1. Inverter may run but certain
actions will not function correctly
2. Replace inverter
6 Troubleshooting
Reac-
tion
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