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1. AXIS CONTROL
B-64693EN-1/01
- 26 - Caution CAUTION 1 In general, interlock is applied to an axis while the servo off signal for that axis is “1”. 2 The mechanical clamp is done by using the auxiliary function. Set the timing for the auxiliary function, mechanical clamp and servo off signals as shown in the Fig. 1.2.8 (a). The clamp command auxiliary function should be executed only after the distribution end signal DEN <Fn001.3> turned to “1”.
MF
Machine clamp SVF1
FIN
Servo off state
Clamp command
Unclamp command
DEN
Fig. 1.2.8 (a) 3 If, during automatic operation, a servo off signal is issued with the setting that causes follow-up to be performed (a bit 0 (FUPx) of parameter No.1819 = 0 and a follow-up signal *FLWU<Gn007.5> = “0”), even if the machine is moved with external force or other means, the travel distance will not immediately reflected in the program coordinate system. Until it is reflected, the machine path will be shifted by the amount of movement due to the external force as in the Fig. 1.2.8 (b).
Programmed machine path Servo off Servo on Actual machine path During servo off, movement due to external force
Fig. 1.2.8 (b) The following method is available to reflect the amount of movement during servo off in the program coordinate system. If not wishing to shift the path, be sure to follow the procedure below to adjust the coordinates and execute an absolute command. - Exit from automatic operation with a reset, single block stop, or feed hold, and then make a restart. |