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TRIO-PS-2G/1AC/12DC/10

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Dynamic boost

The following example is used to explain how the power

supply dynamic boost functions.

Example:

The power supply supplies a connected base load of 80%

until time point t

1 (see illustration, schematic diagram of the

dynamic boost behavior). If an additional load is activated

while the power supply is in operation, the dynamic boost is

requested for the period of time t

1 to t2. The power supply

provides the maximum dynamic power reserve of an

additional 70% (ΔP

dyn. Boost = 1.5 x IN x UN - PInitial load).

As such, the requested overall total power corresponds to

150% of the nominal power. This power can be accessed

directly for at least 5 s in the event that the output voltage

remains the same. On reaching time point t

2, the dynamic

boost is once more returned to the output value of the base

load for thermal offloading of the power supply. In this case,

the base load amounts to the same value of 80%, as prior to

time point t

1. If the request to supply the load still exists,

when the time intervals t

2 to t3 have expired (at least 7 s), a

new cyclical switching of the dynamic power reserve occurs,

to a total of 70%.

Figure 17

Schematic diagram of dynamic boost behavior

Signaling

16.1

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 18

Location of the elements

16.2

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 19

Wiring principle

Depending on the connected base load, the

power supply determines the time intervals for

the dynamic boost procedure or the time

required for the release of thermal tension.

The ratio of dynamic boost time and time for

thermal tension release always varies

depending on load.

t [s]

...

dyn. Boost

80%

100%

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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