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46
Use M3 terminal screws.
Connect a crimp connector with a ring terminal to each terminal screw.
6.2 mm max.
Ring terminal
Caution Tighten the terminal block screws of the AC Power Supply to the torque of
0.5 N S m. Loose screws may result in burning or malfunction.
24-VDC Power Supply Use a DC power supply with sufficient capacity and low ripple. For a DC power
supply used for the transistor output, use a power supply with double insulation
or reinforced insulation to conform to the EC Directives (Low-voltage Direc-
tives). The NC terminal is not used.
24 VDC
COM
00 02
01
0 CH
NC
24 VDC
+ –
Caution Do not perform a withstand voltage test on a CPU Unit with a DC power supply.
The test might damage the PC’s internal components.
Note 1. Do not conduct a withstand voltage test for the power supply section of the
CPU Unit with a DC power supply. Doing so may damage internal elements.
2. Reinforced insulation or double insulation must be used for a DC power sup-
ply to conform to the EC Directives (Low Voltage Directive).
Crimp Connectors
Caution Always use crimp connectors for the CPM1A’s power lines and I/O lines or else
use a solid wire (instead of a stranded wire). Do not connect bare stranded wires
directly to terminals. Bare stranded wires connected directly to the terminal can
cause a fire.
Use M3 terminal screws and tighten the screws securely (0.5 N S m).
6.2 mm max. 6.2 mm max.
Fork terminal Ring terminal
The recommended wire size for solid wires is 0.4 to 1.2 mm (AWG26 to AWG18).
Wiring and Connections
Section 3-4