Siemens Simovert 6SE70 Series Operating Instructions Manual page 208

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Fault and Alarm Messages
Fault Fault description
No.
F033 DC Bus Open
The monitor responds if the following
conditions obtain for longer than 30sec in
the "RUN" status:
- DC link current <1%
- Output voltage of the thyristor bridge
oscillates severely
F034 Par PwrSectF
Fault in power sections connected in
parallel
At least one parallel power section is
connected, has been selected with
parameter P076 and reports the fault
message "Current asymmetry between
rectifier/regenerating unit and parallel
power section".
F035 Ext Fault 1
External fault 1
A parameter-programmable fault input has
become active.
F036 Ext Fault 2
External fault 2
Active in the "RUN" when the pre-charging
time (P329) + 3s (200 ms for SW<3.0) has
elapsed.
A parameter-programmable fault input has
been activated.
F038 Ext Fault 3
External fault 3
A parameter-programmable fault input has
been activated.
F041 EEprom-Fault
Parameter range fault
Software monitoring of the permissible
value range of the parameters and the
functionality of the EEPROM chip
(permanent memory) on electronic module
CUR (type: X28C64, 8192 bytes)
F042 Buffer OFlow
Internal buffer overflow
Software monitoring of various software
buffers.
F047 Int Fault
Non-permissible microprocessor status
The microprocessor is monitored by
internal hardware for non-permissible
states
7-4
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Fault Meaning
value
- -
1 Current asymmetry (overcurrent or
undercurrent in the parallel power
section compared with the current
in the rectifier/regenerating unit)
|I | - |I
basic
|I | - |I
parallel
for 300 ms
- -
- -
- -
1 "Parameter value outside the
permissible range".
2 "EEPROM location defective"
3 "EEPROM fault"
- -
- -
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Possible causes
Countermeasures
- Rectifier fuse defective
- No inverter connected
- One of the thyristors is not firing
- Different current ripple in the
| > 21 %
parallel
| > 14 % - Cable connection between the
basic
- There is an "External fault 1"
- The line to the corresponding
- There is an "External fault 2"
- The line to the corresponding
- There is an "External fault 3"
- The line to the corresponding
- Software has been replaced
- Excessive interference (e.g. by
- Countermeasures:
- Hardware defect
- Severe EMC noise
- Countermeasures:
- As for 1
- CUR module faulted
- Excessive interference (e.g. by
- CUR module faulted
- Excessive interference (e.g. by
Siemens AG
Rectifier/Regenerating Unit
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rectifier/regenerating unit and
parallel power section due to
different commutating reactors
rectifier/regenerating unit and a
parallel power section is
interrupted or faulted
signal at the selected binary input
(P575/source for "Ext. fault 1")
binary input is interrupted.
signal at the selected binary input
(P586/source for "Ext. fault 2")
binary input is interrupted..
signal at the selected binary input
(P573/source for "Ext. fault 3")
binary input is interrupted..
contactors without RC elements,
unshielded cables, faulty
shielding connections ...)
Acknowledge the fault
Check EMC measures
Set MLFB (Section 4.3.9.2)
Establish factory setting (Section
4.3.9.1)
Repeat system start-up (Section
4.2.3)
Replace the CUR module
Check EMC measures.
contactors without RC elements,
unshielded cables, faulty
shielding connections ...)
contactors without RC elements,
unshielded cables, faulty
shielding connections ...)
6SE7087-6AK85-1AA0
Operating Instructions
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