Mitsubishi Electric MELSEC Q Series Programming Manual page 513

APPENDICES
Table 1.5 Positioning control error (200 to 299) list (Continued)
Control mode
Error
code
261
262
263
264
270
271
272
273
Error cause
• At the target position change
request (CHGP), since the
travel to the target position
after the change was shorter
than the deceleration
distance, an overrun
occurred.
• At the target position change
request (CHGP), the target
position after the change
exceeds the range of the
stroke limit.
• The target position change
request (CHGP) is executed
to the program where the
following
acceleration/deceleration
system is set.
(1) FIN acceleration/
deceleration
(2) Advanced S-curve
acceleration/
deceleration
• In reference axis-specified
linear interpolation or the
long axis-specified linear
interpolation, the travel of
the reference axis or the
long axis after the target
position change request
(CHGP) is 0.
• An operation alarm occurred
in the stepping driver when a
driver home position return
method home position return
was performed.
• During home position return,
data could not be obtained
from the stepping driver
correctly.
APP - 22
Error
Corrective action
processing
• Set the speed so that an
overrun will not occur.
•Set the target position so that
an overrun will not occur.
• Set the stroke limit range or the
target position after the change
so that the positioning control
is performed within the stroke
limit range.
• Do not execute the target
position change to the program
where the FIN
acceleration/deceleration or
Deceleration
the advanced S-curve
stop
acceleration/deceleration is
set.
• Set the acceleration/
deceleration system of the
parameter block or the servo
program to the trapezoid/
S-curve acceleration/
deceleration.
• Set a target position so that the
travel of the reference axis or
the long axis after the target
position change is not 0.
• Check the operation alarm
details and perform a home
position return again.
• Perform a home position return
Immediate
again. When the same error is
stop
displayed, the possible cause
is a hardware failure of the
Motion CPU or stepping driver.
Explain the error symptom
and get advice from our sales
representative.