ACU-RITE ENC 150 (New Style) - Manual (Page 17)

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 ®