Rockwell Automation 842E EtherNet/IP Absolute Encoder User Manual - Manual (Page 26)

18 Rockwell Automation Publication 842E-UM001A-EN-P May 2012
Chapter 4 Installation
4. Mount the encoder and tighten with three size M4 mounting screws (not
supplied).
5. Center the flexible coupling and tighten the set screws.
6. Rotate the machine slowly and verify that the flexible coupling is not
deforming beyond specifications.
7. Align machine to its mechanical zero or home position.
8. Remove the screw cover on the back of the encoder and press the preset
push button to change the preset value to the current shaft position value.
(The factory preset value is zero.)
9. Replace the screw cover.
Mounting with a hollow shaft
1. Loosen the screw on the clamping ring with a 2.5-mm star driver.
2. Slide the encoder onto the mating shaft until the flex mount rests on the
machine surface.
3. Hold encoder firmly and mark the two mounting holes. (If mounting holes
already exist, proceed to Step 6.)
4. Slide the encoder off. Drill and tap the marked holes to accept M4 (or
equivalent) screws.
5. Slide the encoder back onto the shaft until the flex mount rests on the
machine surface.
6. Attach the encoder with two M4 (or equivalent) screws.
7. Tighten the clamping ring screw to 1.1 Nm (10 in–lb).
8. Align machine to its mechanical zero or home position.
Be sure the mating shaft is chamfered and grease-free.
ATTENTION
The encoder should slide freely onto the shaft; if not, do not force. Check the
shaft for interferences such as gouges, burrs, rust, or size.
Do not stress the flex mount while tightening the screws.
IMPORTANT
IMPORTANT