|
|
|
16. PMC CONTROL FUNCTION
B-64693EN-1/01
- 2626 - 16.3 EXTENDED EXTERNAL MACHINE ZERO POINT SHIFT Overview The conventional external machine zero point shift value function cannot make shifts on multiple axes Explanation - Setting This function is enabled by setting bit 0 (EMS) of parameter No. 1203 to 1. Enter a desired external R0100 External machine zero point shift value for the 1st axis (Low) R0101 External machine zero point shift value for the 1st axis (High) R0102 External machine zero point shift value for the 2nd axis (Low) R0103 External machine zero point shift value for the 2nd axis (High) : : R(0100+2(n-1)) External machine zero point shift value for the n-th axis (Low) R(0100+2(n-1)+1) External machine zero point shift value for the n-th axis (High)
- Shift value Specify a shift value by using a two-byte binary code for each axis. Suppose that the incremental system is IS-B, the machine is a millimeter machine (bit 0 of parameter
the detection unit is 0.0002 mm (CMR (parameter No. 1820) = 10),
and parameter No. 1280 is set to 100.
When the following values are written to the R area :
R102 = 11001100 (CCh)
R103 = 11101101 (EDh)
the machine position on the second axis is shifted, and the shift value at that time is:
EDCCh [pulse] * 0.0002 [mm/pulse] = -0.932 mm
- Relationship with the error compensation functions This function is superposed on error compensation functions such as the pitch error compensation - Coordinate system If the machine is moved by this function, the coordinates are not updated. |