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3.0
Setup
Remove the enclosure top by inserting a flat blade screwdriver under the retaining tabs in the base (See
figure 2). Set the JP1 current range selection jumpers to the range appropriate for the clutch / brake
connected to the DFC-90 (See figure 3 for current range settings). The factory setting is 1/8 amp range.
Replace the enclosure top.
Figure 2
Enclosure Top Removal
4.0
Maintenance
The only maintenance that may be required on the DFC-90 is fuse replacement. Replacement of the
fuse(2) requires first removing ac power, then opening the enclosure. The enclosure must be re-installed
to maintain the IP rating. The enclosure may be opened by inserting a flat blade screwdriver under the
retaining tabs in the base (See figure 2).
5.0
Follower Arm Applications
5.1
Electrical Connections
Figure 5 shows the connections that are required for the basic follower arm system. They are:
115 vac power input
90 vdc output for clutch / brake
DFP or DFP-2 roll diameter sensor
10 kohm tension potentiometer
The clutch / brake output and the remote meter output are not isolated from the AC line and must not be
ground referenced. The control inputs are isolated and may be ground referenced.
5.2
Sensor Setup (See Figure 4)
The DFP or DFP-2 position sensor should be at the center of rotation when the follower arm is halfway
through its travel. This is an approximate adjustment and is intended to center the sensor position to
allow maximum rotation in both directions during operation.
7
JP1
JP1 Current Range Settings
FULL ROLL DIAMETER
DFP
CORE DIAMETER
Figure 4
2
1
Figure 3
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