Mitsubishi Electric QD77MS User Manual page 220

Item
Output module Type
Phase
compensation
Stroke limit
operation
Stop command
Cam/ball screw
switching
Cam axis starting
point
Q172DCPU
Roller shaft, Ball screw shaft, Rotary
table shaft, Cam shaft
(It is impossible to use "degree" as the
unit of cam shaft.)
Advance time:
-2147483648 to 2147483647μs
Time constant: 0 to 32767
[Number of operation cycle]
An error is detected by stroke limit.
However, the operation is continued.
Invalid
Provided
(Operate the ball screw by inputting the
command pulse from the drive axis.)
1) Cam reference position setting ON:
Start from the point corresponding to
"current value within 1 cam shaft
revolution is 0".
2) Cam reference position setting OFF:
Restore the current value within 1 cam
shaft revolution based on the feed
current value.
Appendix - 4
QD77MS/QD77GF/LD77MS/LD77MH
Cam shaft only.
(The linear cam can be controlled as
same as the ball screw shaft etc.
It is possible to use as "degree" the unit
of cam shaft.)
Advance time:
-2147483648 to 2147483647μs
Time constant: 0 to 65535 ms
An error is detected by stroke limit and
the operation is stopped.
Valid
None
(Operate the ball screw by the
positioning control after the synchronous
control stop of each axis.)
Select the one which is restored, from
"cam axis current value per cycle", "cam
reference position" or "cam axis feed
current value", in the parameter.
(The initial setting is same as 1) in
Q172DCPU.)
Appendices