Puls QS20.241, QS20.241-C1 Technical Data

Q-Series

QS20.241, QS20.241-C1

24V, 20A, SINGLE PHASE INPUT

5. AC-INPUT

AC input AC input range min. 60-85Vac full power for 200ms, no damage between 0 and 85Vac

Input frequency Turn-on voltage typ. 77Vac steady-state value, see Fig. 5-1 Shut-down voltage typ. 73Vac steady-state value, see Fig. 5-1

AC 100V AC 120V AC 230V

Input current typ. 5.47A 4.56A 2.48A at 24V, 20A, see Fig. 5-3 Power factor *) typ. 0.96 0.95 0.90 at 24V, 20A, see Fig. 5-4 Crest factor **) typ. 1.6 1.7 2.05 at 24V, 20A Start-up delay typ. 640ms 610ms 660ms see Fig. 5-2 Rise time typ. 80ms 80ms 80ms 0mF, 24V, 20A, see Fig. 5-2

Turn-on overshoot

*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit. **) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.

Fig. 5-1 Input voltage range Fig. 5-2 Turn-on behavior, definitions

OUT

full

power

for

200ms

Shut-down

60V 300Vac

input range

Turn-on

85V

Rated

Fig. 5-3 Input current vs. output load at 24V Fig. 5-4 Power factor vs. output load at 24V

Input Current, typ.

2 4 6 8 10 12 14 16 18

Output Current

nom. AC 100-240V wide-range input, TN-, TT-, IT-Mains, see Fig. 5-1 min. 85-276Vac continuous operation

min. 276-300Vac < 500ms nom. 50 – 60Hz ±6%

typ. 53Vac dynamical value

typ. 85ms 85ms 85ms 20mF, 24V, 20A, see Fig. 5-2 max. 50mV 50mV 50mV see Fig. 5-2

Input Voltage

Output Voltage

Power Factor, typ.

1.0

0.95

0.9

0.85

0.8

0.75 2 4 6 8 10 12 14 16 18 20A

- 5%

Start-up

delay

Rise

Time

100Vac 120Vac

230Vac

Output Current

Overshoot

276V

max.

500ms

20A

Jan. 2008 / Rev. 1.3 DS-QS20.241-EN All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Q-Series

QS20.241, QS20.241-C1

24V, 20A, SINGLE PHASE INPUT

6. INPUT INRUSH CURRENT

An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage. The charging current into EMI suppression capacitors is disregarded in the first millisecond after switch-on (EN 61204).

Inrush current max. 13A typ. 11A Inrush energy Inrush delay

max. 5A2s 5A2s 5A2s -25°C to +70°C, mains interruptions > 750ms typ. 400ms 400ms 650ms

Fig. 6-1 Input inrush current, typical behavior

AC 100V AC 120V AC 230V

peak

Input

Current

13A 9A

13A

peak

Input Voltage

Output

Voltage

-25°C to +70°C, mains interruptions > 750ms

peak

-25°C to +70°C, mains interruptions > 750ms

peak

A: Inrush delay B: Start-up delay

Input: 230Vac Output: 24V, 20A Ambient: 25°C

Upper curve: Input current 5A / DIV Medium curve: Input voltage 500V / DIV Lower curve: Output voltage 20V / DIV Time basis: 100ms / DIV

7. DC-INPUT

DC input nom. DC 110-300V DC input range min. 88-375Vdc continuous operation DC input current typ. 4.7A / 1.7A 110Vdc / 300Vdc, 24V, 20A Turn-on voltage typ. 74Vdc steady state value Shut-down voltage typ. 69Vdc steady state value

Fig. 7-1 Wiring for DC Input

Battery

Power Supply

Fuse

internal

fused

Load

Instructions for DC use:

a) Use a battery or similar DC source. b) Connect +pole to L and –pole to N. c) Connect the PE terminal to an earth wire or

to the machine ground.

In case the –pole of the battery is not connected to earth, use an appropriate fuse to protect the N terminal.

Jan. 2008 / Rev. 1.3 DS-QS20.241-EN All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Q-Series

QS20.241, QS20.241-C1

24V, 20A, SINGLE PHASE INPUT

8. OUTPUT

Output voltage Adjustment range max. 30V at clockwise end position of potentiometer Factory setting Line regulation Load regulation max. 100mV static value, 0A Æ 20A Æ 0A Ripple and noise voltage Output capacitance typ. 8 500µF

Continuous power capability

Output current

Output power nom. 480W 28V, continuous Short-circuit current max. 40A

BonusPower®, short term power capability (up to typ. 4s)

The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The short-term duration is hardware controlled by an output power manager. This BonusPower® is

repeatedly available. Detailed information can be found in chapter 27.1. If the power supply is loaded longer with the BonusPower® than shown in the Bonus-time diagram (see Fig. 8-2), the max. output power is automatically

reduced to 480W. If the power requirement is continuously above 480W and the voltage falls below approx. 20V (due to the current

regulating mode at overload), the unit shuts-off and makes periodical restart attempts. This behavior is called hiccup mode which is described below. If the voltage is above 20V, the unit continuously delivers current.

Hiccup Mode:

Up to 4s of overloading, the power supply delivers continuous output current. After this, the output power is reduced to nearly zero for approx. 17s before a new start attempt is automatically performed. If the overload has been cleared, the device will operate normally. If the overload still exists, the output current will be delivered for 2 to 4s (depending on the overload) again followed by a17 s rest time. This cycle is repeated as long as the overload exists. See Fig. 8-3. During the off-period a small rest voltage and rest current is present on the output.

Output current

Output power nom. 720W 28V, short term Short-circuit current max. 40A load impedance 50mOhm, up to 4s, see Fig. 8-1 Bonus time min 3.5s see Fig. 8-2

nom. 24V min. 24-28V guaranteed, multi turn potentiometer

max. 10mV 60 to 300Vac

max. 100mVpp 20Hz to 20MHz, 50Ohm

nom. 20A at 24V, see Fig. 8-1 nom. 17A nom. 480W 24V, continuous

min. 30A

nom. 30A at 24V, see Fig. 8-1 nom. 26A nom. 720W 24V, short term

min. 30A load impedance 50mOhm, up to 4s, see Fig. 8-1

typ. 4s at 24V, 30A, duration until the output voltage dips,

max. 4.5s

24.1V

±0.2%, at full load, cold unit

at 28V, see Fig. 8-1

load impedance 50mOhm, up to 4s before hiccup mode starts, see Fig. 8-1 and Fig. 8-3

at 28V, see Fig. 8-1

Jan. 2008 / Rev. 1.3 DS-QS20.241-EN All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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