QT20.361

Q-Series

Oct. 2006 / Rev. 1.0 DS-QT20.361-EN

All parameters are specified at 36V, 13.3A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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3AC 400V

3AC 480V

Hold-up Time

typ.

22ms

22ms

13.3A, 36V, see Fig. 9-1

typ.

44ms

44ms

6.7A, 36V, see Fig. 9-1

Fig. 9-1 Hold-up time vs. input voltage

Fig. 9-2 Shut-down behavior, definitions

0

10

20

30

40

50ms

320

360

400

440

3x480Vac

Input Voltage

Hold-up Time

36V, 6.7A, typ.

36V, 13.3A, typ.

36V, 6.7A, min.

36V, 13.3A, min.

- 5%

Hold-up Time

Zero Transition

Output

Voltage

Intput

Voltage

This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-

fed voltage from a unit which is connected in parallel to the power supply output.

Contact closes

As soon as the output voltage reaches the adjusted output voltage.

Contact opens

As soon as the output voltage dips more than 10% below the adjusted output voltage.

Short dips will be extended to a signal length of 250ms. Dips shorter than 1ms will be ignored.

Contact re-closes

As soon as the output voltage exceeds 90% of the adjusted voltage.

Contact ratings

max

60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A

resistive load

min

1mA at 5Vdc

min. permissible load

Isolation voltage

See dielectric strength table in section 20

Fig. 10-1 DC-ok relay contact behavior

250ms

90%

V

ADJ

<

1ms

10%

open

V

open

closed

closed

>

1ms

Note:

The DC-ok feature requires that the output voltage

reaches the nominal (=adjusted) level after turn-on in

order to function according to specification. If this level

cannot be achieved, the overload lamp will be on and

the DC-ok contact will be open. The overload signal will

only shut off as soon as the adjusted voltage is reached.

This is an important condition to consider particularly, if

the load is a battery, the power supply is used in

parallel or the power supply is used for N+1 redundant

systems.

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