Nexen DPS30 964517 - Manual (Page 4)

FORM NO. L-21260-A-1107
INTRODUCTION
INSTALLATION
Nexen Dancer Position Sensors have been designed to accurately measure the rotational movement of a dancer
arm. This family of sensors use Hall Effect technology which provide for benefits such as infinite resolution, low
drag, and no mechanical wear. They are ideally suited to work with Nexen’s Dancer Position Controllers.
NOTE: Mounting of the Dancer Position Sensor can
be accomplished two ways. The first is the Direct
Connection method and the second is the Coupling
Connection method. Review the instructions for both
methods and select the method best suited for your
application.
DIRECT CONNECTION
1. Verify that the dancer arm pivot shaft’s end complies
with the dimensions given (See Figure 1).
2. Drill and tap two 4-40 threaded holes 90° apart for
two, .25” set screws.
3. The orientation of the Dancer Position Sensor (Item
1) must be as shown in order to match the mid out-
put of the Dancer Position Sensor to the mid travel
position of the dancer arm (See Figure 2).
4. Attach Dancer Position Sensor (Item 1) to one of
the three hole configurations on the Bracket (Item
3) with two shorter Pan Head Screws (Item 4), Flat
Washers (Item 6), and Lock Washers (Item 5). (See
Figure 3).
5. Hand tighten the screws just enough to prevent it
from moving during installation (See Figure 3).
6. Slide the Dancer Position Sensor (Item 1) into the
shaft until the Bracket (Item 3) contacts the ma-
chine’s side frame (See Figure 3).
7. Mark the location of the Bracket’s two mounting
holes.
8. Remove the Dancer Position Sensor (Item 1)
and Bracket (Item 3); then, drill and tap two 8-32
threaded holes centered within the marks drawn in
Step 7.
9. With the dancer arm held firmly in its mid travel posi-
tion, slide the Dancer Position Sensor (Item 1) into
the shaft while making sure the sensor shaft marking
is pointing toward the cable (See Figure 3).
10. Using the two set screws, secure the dancer pivot
shaft to the sensor shaft by tightening the screws
evenly.
Figure 1
Figure 2
Figure 3
Dancer
Arm
Pivot
Shaft
3
5
7
5 6
Machine
Frame
1
+.10
-.00
6.00
+.004
-.000
.236
min.
1
11. Using the two longer Pan Head Screws (Item 7)
and Lock Washers (Item 5), secure the Bracket
(Item 3) to the machine’s side frame (See Figure 3).