ACU-RITE SENC 150 User Manual

Page 18

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 13. 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

SENC 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 Distributor for instructions prior to

removing the encoders or readout.

Trouble Shooting

SENC 150

ACU-RITE

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10/22/2009 10:00:47 AM