6-2
TROUBLESHOOTING
www.maxcessintl.com
MAGPOWR DFC-90
MI 850A265 1 G
Dancer applications
Symptom
Possible Cause
Solution or Diagnostic
No clutch/brake
output
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.
Jumper not installed between
20 and 21
Install jumper between terminals 20 and 21.
Clutch/brake output
full on or full off
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 on page
5-3.
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 on page 5-3.
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.
Clutch/brake output
does not increase
during stop time
RUN/STOP switch not
connected or not wired
properly
Verify RUN/STOP switch wiring.
STOP MULTiplier
potentiometer not set
properly
Turn STOP MULT potentiometer clockwise to
increase the stopping torque.
Dancer arm hunting
during stopping
STOP MULTiplier is being
used
Turn STOP MULT potentiometer counter
clockwise to decrease the hunting during
stopping. See Stop Multiplier note at end of
page 5-4.
Remote meter not
working
Incorrect type of meter
Meter should be a current meter with
1 mA full scale and no more than
3kΩ resistance.
Meter wires shorted or open
Disconnect meter wiring at the DFC-90 and
check for proper meter resistance between the
wires.
