Error Measurement; Precautions - Mitsubishi Electric M800W Series Connection And Set Up Manual

M800W/M80W Series Connection and Setup Manual
27 Setting the Machine Error Compensation

27.3.3 Error Measurement

This function performs compensation based on the position deviation related to the machine zero. When you measure
errors, disable all types of compensation (such as pitch error compensation, backlash compensation), and also the
functions accompanied by the offset of the coordinate system such as workpiece coordinate system offset. Then start
the measurement with the start point of the error cycle matching the machine zero.
For machines that configure the reference position shift distance (#2027 G28sft), first set the value of #2027 prior to
measuring the error.
Error
amount
Machine zero

27.3.4 Precautions

(1) The updates regarding the compensation amount of this function are immediately reflected to the operation. Note
that large compensation amounts might cause sudden machine vibration.
(2) This function starts compensating after the zero point is established.
When the zero point has not been established, this function is not available even if the parameter is set to Enabled.
(3) As changing the reference position shift distance (#2027 G28sft) changes the position of the machine zero,
compensation amounts need to be configured again.
When the coordinate system offset has been performed for functions such as workpiece coordinate system offset
and reference position #1 (#2037 G53ofs), it is not necessary to configure the compensation amounts again if each
of them have already been appropriately configured relative to the machine zero.
(4) This function uses the same parameters as functions such as memory-type pitch error compensation when
configuring compensation amounts (#4101-#5999). Ensure that no parameters are set incorrectly.
(5) When the settings used exceed the parameter setting range in "Cyclic error compensation: initial number of
compensation" (#2586 Cycstnum) and "Cyclic error compensation: number of divisions" (#2587 Cycdv), the
compensation configured for the axis is not enabled.
Example: Compensation start No. is 5995, and division No. is 16 .
(exceeds the range of parameter number, #5999)
One cycle
537
+ direction
IB-1501268-K