LINK Systems System 2500 PLS - Manual (Page 63)

System 2500 Operating & Installation Manual - Revision 07 4-5
Figure 24
Operator Interface Terminal Wiring
isolated.
2. Before connecting the resolver to the Logic Unit, proper direction of rotation of
the resolver shaft must be ascertained. The direction of resolver rotation must be
observed by looking at the resolver shaft from the shaft end of the resolver unit. If
the resolver shaft is to rotate clockwise when the machine shaft to which it is
connected is rotating in the desired direction, wire the resolver for clockwise
rotation. If the resolver shaft is to rotate counter-clockwise when the machine
shaft to which it is connected is rotating in the desired direction, wire the resolver
for counter-clockwise rotation.
A shielded cable with 3 twisted pairs must be used. This cable must be run in a
dedicated conduit from the enclosure housing the Logic Unit to a junction box
mounted behind the resolver unit. The exposed cable from the junction box to the
resolver unit should be as short as possible. Wire the cable as shown in Figure 25
for proper resolver rotation, using the 6 position plug-in terminal strip with
connections labeled 13 through 18. All shields must be connected to terminal #13
of this terminal strip.
3. Wire 115 VAC to terminals L1 and L2 of the terminal block located on the left
side of the Logic Unit. This supply should be capable of providing 1 amp of
current to the System 2500 PLS. Wire the neutral side of the supply (white wire)
to terminal L2. Wire the hot side of the supply (black wire) to terminal L1. Wire
a chassis ground wire to the GND terminal. This ground connection must be
made to insure proper operation of the System 2500 PLS.