Wiring and Connections

Section 3-4

 

 

 

Use M3 terminal screws.

Connect a crimp connector with a ring terminal to each terminal screw.

Ring terminal

6.2 mm max.

!Caution Tighten the terminal block screws of the AC Power Supply to the torque of

0.5N 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

24 VDC

+

COM

01

 

 

 

 

 

 

NC

00

02

 

 

 

 

0 CH

!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).

Fork terminal

Ring terminal

6.2 mm max.

6.2 mm max.

The recommended wire size for solid wires is 0.4 to 1.2 mm (AWG26 to AWG18).

46

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Image 59
Omron CPM1A operation manual VDC Power Supply