Linear Encoder - Mitsubishi Electric MELSERVO MR-J4-B Series Instruction Manual

1. LINEAR ENCODER

1. LINEAR ENCODER
CAUTION
More careful measures against oil and dust must be taken for the linear encoder
than the linear servo motor. For details, contact each linear encoder
manufacturer.
POINT
Always use the linear encoder cable introduced in this chapter. Using other
products may cause a malfunction.
For details of the linear encoder specifications, performance and assurance,
contact each linear encoder manufacturer.
A linear encoder communication method cannot be used depending on the
software version of the servo amplifier. Refer to section 1.1 for combinations of
the communication methods and software versions.
When the linear encoder is incorrectly installed, an alarm or a position mismatch
may occur. In this case, refer to the following general checking points for the
linear encoder to confirm the installation.
Check that the gap between the head and scale is proper.
Check the scale head for rolling and yawing (looseness of scale head section).
Check the scale surface for contamination and scratches.
Check that the vibration and temperature are within the specified range.
Check that the speed is within the permissible range without overshooting.
1 - 1