Nexen DPS30 964517 - Manual (Page 7)

7 FORM NO. L-21260-A-1107
TROUbLESHOOTING
SYMPTOM PRObAbLE CAUSE SOLUTION
No voltage from Dancer Position Sensor.
No power to the Dancer Position sensor Turn on the power to the Dancer Position
Controller. Connect the Dancer Position
Sensor according to Figure 6.
Input power polarity is backwards Check polarity of the power supply. Con-
nect the Dancer Position Sensor accord-
ing to Figure 6.
Dancer Position Sensor output does not
change.
No power to the Dancer Position Sensor Turn on the power to the Dancer Position
Controller. Connect the Dancer Position
Sensor according to Figure 6.
Dancer Position Sensor misaligned Align the Dancer Position Sensor accord-
ing to Figure 2 for Mid Point of Output
and according to the instructions in the
INSTALLATION and ADJUSTMENT sec-
tions.
Dancer arm exceeds the capacity of the
sensor. Switch to a DPS60A or restrict the swing
for the Dancer arm. Refer to SPECIFICA-
TIONS
Position Sensor Signal is erratic with no
dancer arm movement.
Electrical noise interfering with sensor. Connect the shield directly to earth
ground. If noise persists, ensure the
sensor shaft has a low impedance path to
earth ground. See WIRING INSTALLA-
TION GUIDE
Dancer Position Sensor output voltage is
not changing through the full 30 degree
or 60 degree range.
Dancer Position Sensor misaligned Refer to Figure 2 for proper alignment
of the sensor. The shaft marking should
point toward the cable for mid-travel posi-
tion of the dancer arm.