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M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation
Setting parameters
(1) Set setting method for compensation amount to "#4000 Pinc".
#4000
setting value
0
(absolute amount
method)
1
(incremental
amount method)
(2) Set the axis name to be compensated to "#4001 cmpax". Set the same axis name to "#4002 drcax" as well.
(3) Among the division points in the positive direction, set the compensation No. of the division point which is one point
far from the reference position in the negative direction to "#4003 rdvno".
(4) Set the first and the last compensation Nos. allocated to division points to the parameters "#4004 mdvno" and
"#4005 pdvno".
(5) Set the compensation magnification to "#4006 sc".
(6) Set the interval between two division points to "#4007 spcdv".
(7) Set "#4008 twopc" to "1". The function bidirectional pitch error compensation is enabled.
(8) For "#4009 refcmp", set the following compensation amounts after the measuring the actual machine position in
"Setting pitch error compensation data".
[When the parameter "#2023 dir (-)" is set to "0"]
Compensation amount =
- (Actual machine position for the reference position when the direction of travel is negative) × 2
[When the parameter "#2023 dir (-)" is set to "1"]
Compensation amount =
- (Actual machine position for the reference position when the direction of travel is positive) × 2
In both cases, the unit of compensation amount depends on the setting of the machine error compensation unit
(parameter "#1006 mcmpunit").
Direction of reference
position return
#4101
#4102
#4107
#4108
[Parameter setting]
Parameter
Setting value
This method sets the difference between the commanded position and the actual machine position of each
division point as the compensation amount.
This method sets the difference between the commanded travel amount and the actual travel amount
when the axis moved from the adjacent division point as the compensation amount.
Error
Interval between two
3
2
1
- 1
- 2
- 3
#4103
#4104
#4105
#4109
#4110
#4111
Bidirectional pitch error (linear axis)
#4001
#4002
#4003
cmpax
drcax
rdvno
X
X
4103
Setting method
division points
Error amount for the movement
in the negative direction
Basic axis machine coordinate
Error amount for the movement
in the positive direction
Compensation data No. in the
#4106
positive direction
Compensation data No. in the
#4112
negative direction
#4004
#4005
#4006
mdvno
pdvno
sc
4101
4112
1
531
#4007
#4008
#4009
spcdv
twopc
refcmp
10.000
1
4
IB-1501268-K
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