Mitsubishi Electric MELSEC-Q Series User Manual page 639

(5) During simultaneous start, a stroke limit check is carried out for the current
[5] Setting the software stroke limit function
To use the "software stroke limit function", set the required values in the
parameters shown in the following table, and write them to the Simple Motion
module.
The set details are validated at the rising edge (OFF
signal [Y0].
Setting item
Software stroke
[Pr.12] limit upper limit
value
Software stroke
[Pr.13] limit lower limit
value
Software stroke
[Pr.14]
limit selection
Software stroke
[Pr.15] limit valid/invalid
setting
:
Refer to Section 5.2 "List of parameters" for setting details.
[6] Invalidating the software stroke limit
To invalidate the software stroke limit, set the following parameters as shown,
and write them to the Simple Motion module. (Set the value within the setting
range.)
(To invalidate only the manual operation, set "1: software stroke limit invalid" in
the "[Pr.15] Software stroke limit valid/invalid setting".)
The set details are validated at the rising edge (OFF
signal [Y0].
When the unit is "degree", the software stroke limit check is not performed during
speed control (including speed control in speed-position switching control or
position-speed switching control) or during manual control, independently of the
values set in [Pr.12], [Pr.13] and [Pr.15].
REMARK
 Parameters are set for each axis.
 It is recommended that the parameters be set whenever possible with GX Works2.
Execution by sequence program uses many sequence programs and devices. The
execution becomes complicated, and the scan times will increase.
values of every axis to be started. Every axis will not start if an error occurs,
even if it only occurs in one axis.
Setting
value
Set the upper limit value of the moveable range.
Set the lower limit value of the moveable range.
Set whether to use the "[Md.20] Feed current value" or
"[Md.21] Feed machine value" as the "current value".
Set whether the software stroke limit is validated or
0:Valid invalidated during manual control (JOG operation,
Inching operation, manual pulse generator operation).
Software stroke limit
[Pr.12]
upper limit value
13 - 35
Chapter 13 Control Sub Functions
Setting details
Software stroke limit
= [Pr.13]
lower limit value
ON) of the PLC READY
Factory-set
initial value
2147483647
–2147483648
0: Feed current
value
0: Valid
ON) of the PLC READY