TOMATECH AUTOMATION
current, the wiring should follow the following:
Table 1-1 The Wiring requirement
Group Cable type Wiring requirement
AC power cable
A AC coil
AC contactor
Tie up A group cables with a clearance at least 10cm
from that of B, C groups, or shield A group cables from
electromagnetism
DC coil(24VDC)
DC relay(24VDC)
Cables between CNC and
strong-power cabinet
B
Cables between CNC and
machine
Tie up B and A group cables separately or shield B
group cables; and the further B group cables are from
that of C group, the better it is
Cables between CNC and
servo drive unit
Position feedback cable
Position encoder cable
Handwheel（MPG）cable
C
Other cables for shield
Tie up C and A group cables separately, or shield C
group cables; and the cable distance between C group
and B group is at least 10cm and they are twisted pair
cables.
310
Ⅲ Connection
CHAPTER 2 DEFINITION & CONNECTION OF INTERFACE
SIGNALS
2.1 Connection to Drive Unit
2.1.1 Drive interface definition
2.1.2 Code pulse and direction signals
nCP+, nCP- are code pulse signals, nDIR+, nDIR- are code direction signals. These two
group
signals are both differential output (AM26LS31), it is suggested to receive by AM26LS32
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