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M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation
27.3 Cyclic Error Compensation
27.3.1 Outline
When the machine operation induces certain cyclic errors, this function compensates a series of cyclic errors by setting
the compensation amount for a single cycle.
Short-pitched compensation is possible for the errors occurring due to the tooth shape of the encoder.
You can set the period of the error cycle, the number of steps in the cycle (up to 128 steps), and the compensation
amount at each step by the parameter.
1 cycle
Encoder tooth
Errors after applying
[Enabling Conditions]
-
The cyclic error compensation specifications must be enabled, and the parameter "#2585 Cyccmp" (Enable
cyclic error compensation) must be set to "1".
-
This function is only available in CNC-controlled axes. It is not available in PLC-controlled axes.
Switch to C axis mode for spindle position control when applying this function to the spindle.
-
This function is only available in rotary axes. It is not available in linear axes.
The parameters related to the rotary axis must be as follows;
#1017 rot (rotary axis)
#2218 PIT (ball screw pitch)
#2070 div_RT (rotational axis division count)
IB-1501268-K
1st cycle
Error amount
0.005
- 0.005
Tooth shape
Sets the compensation
amount for one cycle in
each step
1st cycle
compensation
0.005
- 0.005
Tooth shape
Parameter
2nd cycle
Repeats the compensation cycle
2nd cycle
Setting value
1
360
360 or 0
534
3rd cycle
・・・
Errors occur in cycles.
3rd cycle
・・・
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