7. CONNECTION TO CNC PERIPHERALS
1 Signals SPOUT and *SPOUT are for a serial spindle. These
signals are not used for an analog spindle.
2 When the line length is over 14 m, set the maximum
electrical resistance of 0 V and 5 V to 0.5 W.
The position coder, which generates square waveform voltage signals of
the number proportionate to the angle of rotation of the spindle, is used
for per–revolution feed and for thread cutting. The spindle and the
position coder are connected in the following four ways by parameter
setting (parameter 5610).
(1)One revolution of the position coder for one revolution of the spindle.
(2)One revolution of the position coder for two revolution of the spindle.
(3)One revolution of the position coder for four revolution of the spindle.
(4)One revolution of the position coder for eight revolution of the spindle.
Fig. 7.9.4 shows the timing chart of signals generated from the position
Fig. 7.9.4 Waveform generated by position coder
A differential driver is used for feedback from the position
*PA, *PB, and *SC are the inverted signals of PA, PB, and
SC respectively and vice sersa.