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