Mitsubishi Electric M700VS Series Setup Manual page 327

MITSUBISHI CNC
Appendix 1 Explanation of Parameters
【#2137】 vback dir refpt Variable backlash reference position selection (entry direction)
Select the entry direction to be used as the reference position.
0: Entry direction +
1: Entry direction -
【#2138】 vback pos center Continuous variable backlash position center point
Set the position center point. (This is used only when continuous variable backlash is set with "#2121
vbacklash valid".) Set a value between "#2132 vback pos1" and "#2133 vbackpos2" for the position
center point.
(Note ) When the size relation of the compensation amount changeover speed and distance 1 and 2
---Setting range---
-999999.999999 to 999999.999999 (mm)
【#2139】 omrff_off OMR-FF invalid
Select whether to enable or temporarily disable the OMR-FF control when OMR-FF is valid.
0: Enable
1: Temporarily disable
When "1" is selected while OMR-FF is valid, OMR-FF can be temporarily disabled and conventional
feed forward control can be applied instead.
【#2140(PR)】 Ssc Svof Filter Speed monitor Error detection time during servo OFF
Set the error detection time of command speed monitoring and feedback speed monitoring during
servo OFF.
An alarm will occur if the time, for which the speed has been exceeding the safe speed or safe
rotation speed, exceeds the error detection time set in this parameter.
If "0" is set, it will be handled as 200 (ms).
---Setting range---
0 to 9999 (ms)
【#2141】 chtL Chopping first-step time constant for soft acceleration and deceleration
Set the first-step time constant for the chopping axis when soft acceleration/deceleration is applied.
Note that, however, there may be cases where actual time constant is shorter than the set time
constant, because the time constant is automatically calculated according to the feedrate so that the
acceleration rate during acceleration/deceleration (clamp speed/chopping time constant) will be
constant.
When "0" is set, "#2007 G1tL" will be valid.
chclsp
---Setting range---
0 to 4000 (ms)
310
is not appropriate while the variable backlash compensation is valid, the followings will be
applied:
If the backlash speed and distance are smaller than the compensation amount changeover
speed and distance 1, both the speed and distance will be small; if larger than the
compensation amount changeover speed and distance 2, both the speed and distance will be
large.
Speed[mm/min]
cht1
chtL
Time[ms]