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03.2010
Siemens AG
6SE7087-6QX70 (Version AL)
SIMOVERT MASTERDRIVES
Compendium Motion Control
1
Faults and Alarms
General information regarding faults
For each fault, the following information is available:
Parameter r947 Fault
number
r949
Fault
value
r951
Fault
list
P952
Number of faults
r782
Fault
time
If a fault message is not reset before the electronic supply voltage is
switched off, then the fault message will be present again when the
electronic supply is switched on again. The unit cannot be operated
without resetting the fault message.
Number / Fault
Cause
Counter-measure
F001
Main contactor
checkback
The monitoring time of the main contactor
checkback (P600) has expired.
- Check main contactor checkback
- Clear main contactor checkback
(P591.B = 0)
- Increase monitoring time (P600)
F002
Pre-charging fault
The monitoring time of pre-charging has
expired, i.e. the DC link voltage has not
reached the setpoint within 3 secs.
- Check voltage connection (AC or DC)
- Unit-dependent:
Check fuses
- Compare value in P070 and unit MLFB
F006
DC link overvoltage
Due to excessive DC link voltage, shutdown
has occurred. The rated value of the shutdown
threshold is 819 V. Due to component
tolerances shutdown can take place in the
range from 803 V to 835 V.
In the fault value the DC link voltage upon
occurence of the fault is indicated
(normalization 0x7FFF corresponds to 1000 V)
Check the line voltage (AC-AC) or the input
direct voltage (DC-AC). Compare value with
P071 (Line Volts)
F008
DC link undervoltage
The lower limit value of 76% of the DC link
voltage has been fallen short of.
In the fault value the DC link voltage upon
occurence of the fault is indicated
(normalization 0x7FFF corresponds to 1000 V)
- Check the line voltage (AC-AC) or the input
direct voltage (DC-AC). Compare value with
P071 (Line Volts)
- Check input rectifier (AC-AC)
- Check DC link
F011
Overcurrent
not Compact PLUS
Overcurrent shutdown has occurred.
The shutdown threshold has been exceeded.
The phase in which an overcurrent has
occurred is indicated in a bit-coded manner in
the fault value (see P949).
Phase U --> Bit 0 = 1--> fault value = 1
Phase V --> Bit 1 = 1--> fault value = 2
Phase W--> Bit 2 = 1--> fault value = 4
If an overcurrent occurs simultaneously in
several phases, the total of the fault values of
the phases concerned is the resulting fault
value.
- Check the converter output for short-circuit or
earth fault
- Check the load for an overload condition
- Check whether motor and converter are
correctly matched
- Check whether the dynamic requirements
are too high
Faults
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