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7.0
Troubleshooting
7.1
Follower Arm Applications
Symptom
No output.
Output does not
increase during
stop time.
Remote meter not
working.
Possible Cause
No DC power.
Fuse blown.
Output wires open circuit.
Remote tension adjust
potentiometer turned full
counter clockwise or not
wired properly.
Remote tension
potentiometer resistance
is less than 10 kohms.
DFP, DFP-2 position
sensor not wired properly
or wires shorted.
Follower Arm not
calibrated.
RUN/STOP switch not
connected or not wired
properly.
STOP MULTiplier
potentiometer not set
properly.
Incorrect type of meter.
Meter wires shorted or
open.
Solution or Diagnostic
Verify incoming power is the correct
voltage.
Output wires shorted together or
shorted to ground.
Verify output voltage or current at the
receiving device.
Verify tension pot wiring, turn tension
adjust pot full clockwise and follow
the calibration procedure in section
4.3.
Voltage between terminals 20(+) and
22(-) should be greater than zero and
should change as the DFP or DFP-2
is moved through its travel.
Use a 10 kohm potentiometer for the
Remote tension control.
Verify position sensor is wired
properly and follow the calibration
procedure in section 4.3.
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 4.3.
Verify RUN/STOP switch wiring.
Turn STOP MULT potentiometer
clockwise to increase the stopping
torque.
Meter should be a current meter with
1 ma full scale and no more than
500 ohm resistance.
Disconnect meter wiring at the
DFC-A and check for proper meter
resistance between the wires.
7
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