LINK Systems OmniLink 5000 - Manual (Page 97)

7.5
Figure 7.7 Dimensions for Resolver/Encoder
Mounted on Spring Base
Another sprocket must be attached to the machine shaft. The proper size hole must be drilled and tapped
in the static center of the machine shaft. After attaching the sprocket to the shaft, an additional hole
should be drilled approximately 3/4 " off of the static center. This hole should be drilled through the
sprocket and into the machine shaft. The sprocket should be removed and the off center hole in the
machine shaft tapped for a 1/4 " bolt or larger. The off center hole in the sprocket must provide proper
clearance for the bolt. Attach the sprocket to the machine shaft with the center bolt and the off center
bolt. When attaching the chain to the sprockets, the zero position of the resolver/encoder must be aligned
with the top dead center of the machine shaft. The zero position of the resolver/encoder is indicated by
the legend on the front of the assembly. When the keyway is aligned with the zero position of the legend,
the assembly is at zero. The system 5000 allows the user to program an offset value to make up for minor
differences from the machine top dead center and resolver/encoder zero. The offset value is limited to ±
10 degrees of resolver zero.
Section 7.2 Field Wiring
Section 7.2.1 Operator Terminal/Card Rack
Figure 7.8 shows the field connections between the operator terminal and the card rack. The shield
should not be connected at the operator terminal side, but should be cut and taped so as not to accidently
short.