ACU-RITE ENC 150 (Old Style) - Manual (Page 16)

If you experience difficulties with your installation, do the following
to determine the problem.
Checking the Readout
Difficulties on more than one axis are usually associated with the
readout. Follow these steps 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.
If the Readout is at fault, refer to “What to do” to arrange for the
parts necessary to repair your system. If a linear encoder appears
to be at fault, proceed with “Checking the Linear Encoders”.
Checking the Linear Encoders
Problems on a single axis are usually associated with the linear
encoder or its installation. Difficulties can be caused by improper
installation, loose or misaligned bracketry, or a damaged or
inoperable encoder.
Follow these steps to determine the cause of your system difficulties:
• Confirm that your bracketry and installation does not interfere
with other machine structures through the entire 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 4. If the installation does not meet the tolerances, reinstall
the encoder according to the “Installation Procedure”.
• Perform a Repeatability Test as described on Page 11. If the
linear encoder is installed to the required tolerances, the bracketry
and encoder have been checked for interferences and loose
fasteners, and the encoder fails the repeatability test, the encoder
is likely at fault.
Do not attempt to repair the reading head or scale assembly. The
ENC 150 is field serviceable by assembly replacement only.
Attempts to repair the encoder can permanently damage it and void
the warranty.
What to do
If an ACU-RITE linear encoder or readout is found to be at fault,
please contact your Authorized ACU-RITE Distributor for instructions
prior to removing the encoders or readout .
ENC 150 Trouble Shooting
15 ACU-RITE ®