Standard System Configuration
3-20
Part 1056418-07
E 2019 Nordson Corporation
Fine-Tuning Encoder Resolution
You may need to adjust the actual encoder scale or resolution to make it as
accurate as possible. For example, a 0.040-inch error in the encoder
mechanics can result in a 4-inch error in triggering at a 100-inch pickoff
(0.040 x 100 = 4).
Use the following procedure to adjust the resolution setting. You may need
to adjust the encoder mechanics also.
1. Set the pickoff (page 3-21) for one of the guns mounted farthest from
the zone photoeyes.
2. Hang a part on the conveyor.
3. For the part preset (refer to Section 5), set the lead and lag to zero, and
assign the gun to a zone.
4. Run the part through the booth. Make sure the gun triggers on at the
leading edge of the part and off at the trailing edge. Adjust the encoder
resolution as necessary.
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