Faults and Alarms 05.2006
6SE7087-2JD60 Siemens AG
14-2 Operating Instructions SIMOVERT MASTERDRIVES
Number / Fault Cause Counter-measure
F008
DC link undervoltage
The lower limit value of 76 % of the DC link
voltage (P071 Line Volts), or of 61 % when
kinetic buffering has been enabled, has been
fallen short of.
Undervoltage in the DC link in 'normal'
operation (i.e. no SIMULATION).
Undervoltage in the DC link with active kinetic
buffering and speed less than 10 % of the
rated motor speed.
It was a 'brief power failure' which was not
detected until system recovery (auto restart
flag).
Check
- Input DC voltage
- DC link
F010
DC link overvoltage
Due to excessive DC link voltage, shutdown
has taken place:
Line voltage DC link range Shutdown
value
380 V - 480 V 510 V - 650 V 740 V
Note:
Only at U800 = 1 and f(Pulse) > f(derating)
Lower threshold value than F006 !
Check the supply voltage
Check the braking resistor
Converter operates regeneratively without a
feedback possibility. Braking unit must be set
to the lower response threshold (673 V)
F011
Overcurrent
Overcurrent shutdown has occurred.
The shutdown threshold has been exceeded.
- 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
F012
I too low
During excitation of the induction motor, the
current did not rise above 12.5 % of the
setpoint magnetizing current for no-load
operation.
Only for closed loop n/f/T control (P100 = 3, 4
or 5)
If no motor is connected, go into the simulation
mode P372.
Check current detection, check power section.
F014
I too low
During excitation of the motor, the current
component is less than 25 % of the motor no-
load current.
Note:
Only for U800 = 1
Irrespective of the type of control
(Difference to F012)
Check the output contactor
Check the motor cable
To Next Page
Loading...
Need help?
General
