CV500-SLK21 datasheet(66/182 Pages) OMRON

66 / 182 page

Surge Current

The surge current for the DC Power Supply Unit under maximum load conditions

is shown below. Consider the surge current characteristics when selecting the

power source, switches, breakers, etc.

Input: 24 VDC; load: 12 A at 5 V (maximum load); ambient temp.: 25

°C.

Time (ms)

Electric

current

(A)

Use crimp terminals for wiring. Do not connect bare stranded wires directly to

terminal blocks. Use M3.5 screws for tightening crimp terminals.

7 mm max.

Tighten the screws on the terminal block to a torque of 0.8 N

S m.

M3.5 screw

Tightening torque: 0.8 N

S m

20 mm max.

Caution

Abide by the following precautions when wiring the Power Supply Units. Failure

to abide by these precautions my cause faulty operation or damage to the Unit.

• Be sure that no wire clippings or other foreign materials enter the Units when

wiring.

• Provide circuit breakers and other protective devices to protect the system

again external short circuits.

• Check and recheck all wiring before supplying power to the system.

• After wiring the terminals check the terminal block to be sure it is firmly locked

in place.

3-4-2 Grounding

The line ground (LG:

) terminal of the Power Supply Unit is a noise-filtered

neutral terminal. Short the line ground terminal to the ground (GR:

) terminal to

improve noise resistance.

To avoid electrical shock, attach a grounded AWG 14 wire (cross-sectional area

of 2 mm2) to the ground terminal. The ground resistance must be 100

W or less

and must be checked periodically to be sure that environmental conditions have

not deteriorated ground capacity. Do not use a wire longer than 20 m.

Power Supply Units

Section 3-4

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