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11 MANUAL CONTROL
Precautions during operation
The following details must be understood before carrying out JOG operation.
(1) For safety, first set "
movement. Then gradually increase the value.
(2) An axis error will occur and the operation will not start (error code: 300) if the
"JOG speed" is outside the setting range at the JOG start.
(3) An axis error will occur and the operation will not start (error code: 956) if
"
Pr.31
JOG speed limit value" is set to a value larger than "
value".
(4) If "
Cd.17
JOG speed" exceeds the speed set in "
value", the workpiece will move at the "
"Axis warning" will occur in the QD75 (warning code: 301).
(5) The JOG operation can be continued even if an "Axis warning" has occurred.
(6) A JOG start signal OFF
(within 100ms) will be ignored. (The operation will not start.)
Cd.16
(7) Set a "0" in "
set, the operation will become an inching operation (Refer to Section 11.3
"Inching operation").
Errors during operation
When the operation is stopped by the stroke limit (limit signal OFF), JOG operation
can be performed in the direction in which the limit signal turns ON after an error
reset. (An error will occur again if the JOG start signal in the direction in which the
limit signal turns OFF is turned ON.)
V
JOG operation possible
Upper/lower
limit signal
Cd.17
JOG speed" to a smaller value and check the
Pr.31
ON immediately after the stop signal ON
inching movement amount". If a value other than "0" is
JOG operation
JOG operation not possible
ON
OFF
11 - 5
MELSEC-Q
Pr.8
speed limit
Pr.31
JOG speed limit
JOG speed limit value" and an
OFF
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Troubleshooting
