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53
Wiring and Connections
Section 3-5
Compatible Wires and Terminals
The following diagram shows how to wire the power supply.
Note
1.
Do not perform a voltage withstand test on the DC power supply terminals.
The test might damage the PLC’s internal components.
2.
When equipment must conform to the EC Directives (Low-voltage Direc-
tives), use a power supply with double insulation or reinforced insulation.
3-5-2
I/O Wiring Procedures
Removing and Wiring I/O Terminal Blocks
The following tables provide output terminal block specifications.
Wire/terminal
Specification
Solid wire
0.2 to 2.5 mm
2
(AWG 24 to AWG 12)
Strip 7 mm (1/4 inch) of insulation.
Stranded wire
0.2 to 2.5 mm
2
(AWG 24 to AWG 12)
Strip 7 mm (1/4 inch) of insulation.
Two-conductor
wires
Solid
2
×
(0.2 to 1.0 mm
2
) (AWG 24 to AWG 20)
Stranded
2
×
(0.2 to 1.5 mm
2
) (AWG 24 to AWG 16)
Stranded with
pin terminal
2
×
(0.25 to 1.0 mm
2
) (AWG 24 to AWG 20)
without an insulating sleeve
Pin terminals
0.2 to 2.5 mm
2
diameter, 7-mm long pin terminal
The power supply terminal
block is removable.
0 V
24 V DC
(12 V DC)
CPU Boards and Expansion I/O Boards
with relay outputs
Output terminal blocks
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