Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 316

General-purpose ac servo, sscnet interface 2-axis ac servo amplifier
Hide thumbs Also See for MELSERVO-J3W Series:
Table of Contents

Advertisement

13. USING A LINEAR SERVO MOTOR
Alarm No.27
Alarm description
Display
Name
27.3
magnetic pole
detection limit
switch error
27.4
magnetic pole
detection
estimated error
27.5
magnetic pole
detection position
deviation error
27.6
magnetic pole
detection speed
deviation error
27.7
magnetic pole
detection current
error
Alarm No.28
Alarm description
Display
Name
28.1
Linear encoder
environment error
Alarm No.2A
Alarm description
Display
Name
2A.1
Linear encoder
side error 1
Name: Initial magnetic pole detection error
Initial magnetic pole detection cannot be performed properly.
Cause
(1) Both of the magnetic pole
detection limit switches
are OFF.
(1) The estimated value
obtained from the
magnetic pole detection
is faulty.
(1) Position deviation
increases during the
magnetic pole detection.
(1) Speed deviation
increases during the
magnetic pole detection.
(1) The current reaches the
alarm level during the
magnetic pole detection.
Name: Linear encoder error 2
Fault is found in the surrounding environment of the linear encoder.
Cause
(1) Temperature of the linear
encoder is high.
(2) Signal level from the
linear encoder drops.
Name: Linear encoder error 1
Error signal from the linear encoder is received.
Cause
(1)
Installation positions of
the linear encoder and
the head are faulty.
(2) Fault is generated from
the surrounding
environment.
(3) Alarm of the linear
encoder.
Stop method: Corresponding axis stops
Checkpoint
Check that the limit
Limit switches are
switches are ON.
OFF.
Examine checkpoints described in the alarm display "27.1".
Examine checkpoints described in the alarm display "27.1".
Examine checkpoints described in the alarm display "27.1".
Examine checkpoints described in the alarm display "27.1".
Stop method: Corresponding axis stops
Checkpoint
Check the temperature of
Temperature is high.
the linear encoder.
Temperature is low.
Check the installation of
Problem found.
the linear encoder.
Stop method: Corresponding axis stops
Checkpoint
Adjust the positions of the
Not reproduced.
linear encoder and the
head, and check the
Reproduced.
reproducibility of the error.
Check for noise and other
Problem found.
factors.
No problem found.
Check the details of
Improve the detail
section 13.7.4.
information No.1 of
the linear encoder
manufacturer.
13 - 67
Finding
Action
Turn the limit switches
ON.
Finding
Action
Consult the linear
encoder manufacturer.
Check (2).
Modify the installation
of the linear encoder.
Finding
Action
Use in the adjusted
positions.
Check (2).
Take countermeasure
according to the
cause.
Check (3).
Consult the linear
encoder
manufacturer.

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents