2909577 datasheet(14/28 Pages) PHOENIX

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QUINT4-PS/1AC/24DC/3.8/PT

108339_en_00

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6.3.1

Performing high-voltage testing

If high-voltage testing of the control cabinet or the power

supply as a stand-alone component is planned during final

inspection and testing, the following features must be

observed.

–

The power supply wiring must be implemented as

shown in the wiring diagram.

–

The maximum permissible test voltages must not be

exceeded.

Avoid unnecessary loading or damage to the power supply

due to excessive test voltages.

Figure 1

Potential-related wiring for the high-voltage

test

Key

For the relevant applicable test voltages and

insulation distances, refer to the

corresponding table (see technical data:

electric strength of the insulation section).

No.

Designation

Color coding

Potential

levels

DC output circuit Blue

Potential 1

Signal contacts

Blue

Potential 1

High-voltage

tester

AC input circuit

Red

Potential 2

Input AC

Output DC

Boost > 100%

> 75%

> 50%

DC OK

P>P

Out

Thr

Out

24-28V

Signal (SIG)

SIG

+ −−

3.1 2.1 2.2 2.3

1.1 1.2

L/+

N/−

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