9
9.2 Dancer
Applications
Symptom
Possible Cause
Solution or Diagnostic
No AC power.
Verify incoming power is correct
voltage and frequency.
Fuses blown.
Clutch / Brake wires shorted together
or shorted to ground.
Clutch / Brake wires open
circuit.
Disconnect clutch / brake wires at the
DFC-90 and check for proper clutch /
brake resistance between the wires.
No clutch / brake
output.
Jumper not installed
between 20 and 21.
Install jumper between terminals 20
and 21.
DFP or DFP-2 sensor not
wired properly or wires
shorted.
Verify DFP or DFP-2 sensor is wired
properly and follow the calibration
procedure in section 6.3.
Voltage between terminals 24 and 26
should be 10 vdc.
Voltage between terminals 25 and 26
should change as the DFP or DFP-2
is moved through its travel.
Dancer not calibrated.
Follow the calibration procedure in
section 6.3.
Clutch / Brake
output full on or full
off.
DFC-90 in
PID
mode and
RUN/STOP switch is not
wired properly.
Verify RUN/STOP switch wiring.
PID
mode needs a RUN/STOP switch for
proper operation.
RUN/STOP switch not
connected or not wired
properly.
Verify RUN/STOP switch wiring.
Clutch / Brake
output does not
increase during
stop time.
STOP MULT
iplier
potentiometer not set
properly.
Turn
STOP MULT
potentiometer
clockwise to increase the stopping
torque.
Dancer arm hunting
during stopping.
STOP MULT
iplier is being
used.
Turn
STOP MULT
potentiometer
counter clockwise to decrease the
hunting during stopping. See Stop
Multiplier note at end of section 6.3.
Incorrect type of meter.
Meter should be a current meter with
1 ma full scale and no more than
3 kohm resistance.
Remote meter not
working.
Meter wires shorted or
open.
Disconnect meter wiring at the DFC-
90 and check for proper meter
resistance between the wires.
