8 Status indicators and troubleshooting 02.05
© Siemens AG 1998 All Rights Reserved
8-2 FM-STEPDRIVE/SIMOSTEP (FB)
!
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 Rectification
FLT (FAULT)
lights
Short-circuit betweeen
motor phases
1. Switch off mains
voltage.
2. Check motor wiring;
replace motor if
necessary.
3. Switch on mains
voltage.
OV (OVER-VOLT)
lights
Overvoltage
or
motor's feedback energy
too great
Check mains voltage
and mains connection.
Reduce feedback energy
of the motor or dissipate
the feedback energy via
the intermediate circuit
connection.
LV (LOW-VOLT)
lights
Undervoltage 1. Check mains voltage
and mains connection.
2. Adjust the voltage.
TMP (TEMP)
lights
Overtemperature 1. Ensure sufficient air
supply, or reduce
ambient temperature.
2. After cooling down:
Switch mains voltage
or ENABLE signal off
and on again.
GTE (GATE_N)
not lighting
GATE input not activated
motor not moving
Activate GATE_N input.
RDY (READY)
lights
Unit is ready for
operation.
-
OV (OVER-VOLT)
and
LV (LOW-VOLT
light
ENABLE input is
inactive.
Activate ENABLE input.
FLT
OV
LV
TMP
RDY
GTE
OV (OVER-VOLT),
LV (LOW-VOLT),
FLT (FAULT) and
TMP (TEMP) light
Excessive clock
frequency on PULSE
input or
high-frequency
interference
1. Check clock
frequency.
2. Switch mains voltage
or ENABLE signal off
and on again.
To Next Page
Loading...
Need help?
General
