ACU-RITE Microscale - Manual (Page 13)

If you experience difficulties with your installation, there are methods
to analyze the difficulty. Operating difficulties can be caused by either
the linear encoders or the readout.
Checking the readout
Follow the steps below to determine if your difficulties are associated
with the readout:
• Insure that the linear encoder connectors are correctly seated.
• Swap linear encoder cables at the readout to see if the problem is
still shown in the same display.
• If the problem remains in the same display, the readout is in error.
• If the problem follows the connection change, the linear encoder
may be in error.
• Follow this procedure for any intermittent problem experienced.
If the readout is at fault, refer to “What to do” to arrange for the
parts necessary to repair your system. If the linear encoders appear
to be the cause, perform the next step.
Checking the Linear Encoders
Linear encoder difficulties can be caused by improper installation,
loose or misaligned bracketry, or a damaged / failed linear encoder.
Follow the steps below to determine the cause of your system
difficulties:
• Confirm that your bracketry and installation does not interfere
with other machine structures through the length of the linear
encoder travel.
• Check for loose fasteners. If you find loose fasteners, first confirm
that the linear encoder is installed to the tolerances specified and
then retighten the fasteners as required.
• Confirm that the linear encoder is installed to the required
tolerances by checking the alignment tolerances specified on Page
3 “Key Points”. If the installation does not meet the tolerances,
reinstall the linear encoder according to the procedures in
“Installation”.
• Perform a Repeatability Test as described on Page 10, “Checking
Your Installation”. If the linear encoder is installed to the
required tolerances, the bracketry and linear encoder have been
checked for interferences and loose fasteners, and the linear
encoder fails the repeatability test, the linear encoder is likely at
fault.
Do not attempt to repair the linear encoder. The units are only
serviceable by assembly replacement. Attempted repair can
permanently damage the unit and void the warranty.
What to do
If an ACU-RITE linear encoder or readout is found to be at fault,
prior to removing the linear encoders or readout contact your
Authorized ACU-RITE Distributor or OEM/OEI for repair
instructions.
11 ACU-RITE ®
MicroScale Trouble Shooting