Siemens SIMATIC SIMOSTEP 1FL3041 Functional Description page 42

8 Status indicators and troubleshooting
!
FLT
OV
LV
TMP
GTE
RDY
8-2
Danger
If a malfunction occurs, the motor is deenergized and the power controller
indicates not ready status (LED RDY goes out). The READY1_N and
READY2 outputs have high resistance.
A motor does not have any holding torque when deenergized. This may
cause undesirable effects.
Indication Cause
FLT (FAULT) Short-circuit betweeen
lights motor phases
OV (OVER-VOLT) Overvoltage
lights
or
motor's feedback energy
too great
LV (LOW-VOLT) Undervoltage
lights
TMP (TEMP) Overtemperature
lights
GTE (GATE_N) GATE input not activated
not lighting motor not moving
RDY (READY) Unit is ready for
lights operation.
OV (OVER-VOLT) ENABLE input is
and inactive.
LV (LOW-VOLT
light
OV (OVER-VOLT), Excessive clock
LV (LOW-VOLT), frequency on PULSE
FLT (FAULT) and input or
TMP (TEMP) light high-frequency
interference
Rectification
1. Switch off mains
voltage.
2. Check motor wiring;
replace motor if
necessary.
3. Switch on mains
voltage.
Check mains voltage
and mains connection.
Reduce feedback energy
of the motor or dissipate
the feedback energy via
the intermediate circuit
connection.
1. Check mains voltage
and mains connection.
2. Adjust the voltage.
1. Ensure sufficient air
supply, or reduce
ambient temperature.
2. After cooling down:
Switch mains voltage
or ENABLE signal off
and on again.
Activate GATE_N input.
-
Activate ENABLE input.
1. Check clock
frequency.
2. Switch mains voltage
or ENABLE signal off
and on again.
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FM-STEPDRIVE/SIMOSTEP (FB)
02.05