106963 datasheet(19/25 Pages) PHOENIX

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TRIO-PS-2G/1AC/12DC/5/C2LPS

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14.4

Meaning of NEC - Class 2 (National Electrical

Code - Class 2)

The approval of the power supply as a “Class 2 Output” in

accordance with American standard ANSI/UL 1310 ensures

that the power supply only provides limited power even in

the event of an error. This increases safety to such an extent

that the simulated circuits are also deemed very safe in

terms of fire protection. This can result in reduced

installation work.

The output of the power supply is configured in accordance

with ANSI/UL 1310 (Class 2 power supplies) and approved

as such with limited power. This ensures that the limit values

described in UL 1310 are not exceeded.

The power supply is able to supply up to 1.5 x I

N for 1 s at

maximum load. If less dynamic power is required, this can

also be supplied for more than 1 s.

Signaling

15.1

DC OK-LED

The DC OK-LED is available for function monitoring. The

LED is continuously illuminated when the output voltage is

> 90 % of the nominal output voltage U

OUT (12 V DC).

Figure 17

Location of the elements

15.2

Floating signal contact

A floating diagnostics contact can be used to forward data to

a higher-level control system. When opened, the

diagnostics contact indicates an underrange of more than

90% for the nominal output voltage U

OUT.

Figure 18

Wiring principle

24-28V

DC OK

12-18V

12 18

-V

DC OK

PLC

Digital Input

DI x

max. 30 V AC/DC

100 mA

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