Faults And Alarms; Faults - Siemens simovert masterdrives Betriebsanleitung

05.2006
12

Faults and Alarms

12.1

Faults

General information regarding faults
For each fault, the following information is available:
Parameter
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
F001 The monitoring time of the main contactor
checkback (P600) has expired.
Main contactor
checkback
F002 The monitoring time of pre-charging has
expired, i.e. the DC link voltage has not
Pre-charging fault reached the setpoint within 3 secs.
F006 Due to excessive DC link voltage, shutdown
has occurred. The rated value of the shutdown
DC link overvoltage 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 1000V)
F008 The lower limit value of 76% of the DC link
voltage has been fallen short of.
DC link undervoltage
In the fault value the DC link voltage upon
occurence of the fault is indicated
(normalization 0x7FFF corresponds to 1000V)
F011 Overcurrent shutdown has occurred.
The shutdown threshold has been exceeded.
Overcurrent
The phase in which an overcurrent has
not Compact PLUS 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.
Siemens AG 6SE7087-6JK50
SIMOVERT MASTERDRIVES
r947 Fault number
r949 Fault value
r951 Fault list
P952 Number of faults
r782 Fault time
Operating Instructions
Faults and Alarms
Counter-measure
- Check main contactor checkback
- Clear main contactor checkback (P591.B = 0)
- Increase monitoring time (P600)
- Check voltage connection (AC or DC)
- Unit-dependent: Check fuses
- Compare value in P070 and unit MLFB
Check the line voltage (AC-AC) or the input
direct voltage (DC-AC). Compare value with
P071 (Line Volts)
- 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
- 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
12-1