Ac Connections - Omron SYSMAC C500 Installation Manual

Power Considerations

AC Connections

3G2A5-PS221-E/223-E
Screw (4 mm head with
selfraising pressure plate)
+
-
Voltage selector
Short: 100 to 120 VAC
Open: 200 to 240 VAC
Short-circuit these termi-
nals with the shorting
bracket supplied as an
accessory to select 100
to 120 VAC supply volt-
age. For 200 to 240 VAC
leave them open.
3G2A5-PS222-E
Screw (4 mm head with
selfraising pressure plate)
+
-
Voltage selector
Short: 100 to 120 VAC
Open: 200 to 240 VAC
Short-circuit these terminals
with the shorting bracket
supplied as an accessory to
select 100 to 120 VAC sup-
ply voltage. For 200 to 240
VAC, leave them open.
Breaker
1:1 isolation
transformer
Isolation transformer
Noise between the PC
and ground can be sig-
nificantly reduced by
connecting a 1-to-1 iso-
lation transformer. Do
not ground the secon-
dary coil of the trans-
former.
AC power source
Supply 100 to 120
or 200 to 240 VAC
Keep voltage fluc-
tuations within the
specified range (refer
to Appendix B Speci-
fications )
Power line
Use AWG 14 twisted-
pair cable (cross-sec-
2
tional area: 2 mm min.)
Be sure to use a wire of at least 1.25 mm
thickness.
Use M4 screws for tightening crimp termi-
nals. Use ring crimp terminals for wiring. Do
not connect bare stranded wires directly to
terminal blocks.
Caution Tighten the screws on the terminal block of the AC
!
Power Supply Unit to a torque of 1.2 N S m. Loose
screws may result in burning or malfunction.
8.6 mm max.
Section 6
2
in
45