
B–63503EN/02
4. POWER SUPPLY CONNECTION
36
The following circuit configuration is recommended.
The power to the CNC and other units (A unit with I/O Link, FANUC
Servo Unit (Series with an I/O link (β amplifier with an I/O link), and so
on in the sample configuration below)) is assumed to be turned on at the
same time. (The power to any unit is not assumed to be turned on during
operation or before the power to the CNC is turned on. No unit is assumed
to be connected between the 24 VDC output of the regulated power supply
and input of on/off circuit B.)
Either on/off circuit is
connected.
AC input
On/off
circuit A
Unit with I/O Link
CNC
Regulated
power
supply
Units
β amplifier
with an I/O link
When on/off circuit B is connected, the
power must not be supplied to units be-
tween the 24 VDC output of the regu-
lated power supply and input of on/off
circuit B. (This is because the condition
that the power to the units is turned on
within 200 ms before the power to the
CNC is turned on.)
On/off
circuit B
Fig 4.2.2 (b)