PULS QT40.241 technology data

QT40.241

Q-Series

POWER SUPPLY

 3AC 380-480V Wide-range Input  Width only 110mm  Efficiency up to 95.3%  Excellent Partial Load Efficiency  150% (1440W) Peak Load Capability  Easy Fuse Tripping due to High Overload Current  Active Power Factor Correction (PFC)  Active Filtering of Input Transients  Minimal Inrush Current Surge  Three Input Fuses Included  Current Sharing Feature for Parallel Use  Full Power Between -25°C and +60°C  DC-OK Relay Contact  Shut-down Input  3 Year Warranty

GENERAL DESCRIPTION

The most outstanding features of the DIMENSION QSeries DIN-rail power supplies are the extremely high efficiencies and the small sizes, which are achieved by a synchronous rectification and other technological designs.

Large power reserves of 150% support the starting of heavy loads such as DC-motors or capacitive loads. In many cases this allows the use of a unit from a lower wattage class which saves space and money.

High immunity to transients and power surges as well as low electromagnetic emission makes usage in nearly every environment possible.

The integrated output power manager, the three input fuses and near zero input inrush current make installation and usage simple. Diagnostics are easy due to the DC-ok relay, a green DC-OK LED and the red overload LED.

A large international approval package for a variety of applications makes this unit suitable for nearly every application.

ORDER NUMBERS

Power Supply QT40.241 24-28V Standard unit

Accessory ZM2.WALL Wall mount bracket SLR01 Redundancy module UF20.241 Buffer unit

24V, 40A, THREE PHASE INPUT

SHORT-FORM DATA

Output voltage DC 24V Adjustment range 24 - 28V Output current 40 – 34.3A continuous 60 – 51.5A for typ. 4s Output power 960W continuous 1440W for typ. 4s Output ripple < 100mVpp 20Hz to 20MHz Input voltage 3AC 380-480V -15%/+20% Mains frequency 50-60Hz ±6% AC Input current 1.65 / 1.35A at 3x400 / 480Vac Power factor 0.88 / 0.90 at 3x400 / 480Vac AC Inrush current typ. 4.5A peak Efficiency 95.3 / 95.2% at 3x400 / 480Vac Losses 47.3 / 48.4W at 3x400 / 480Vac Temperature range -25°C to +70°C operational Derating 24W/°C +60 to +70°C Hold-up time typ. 25 / 25ms at 3x400 / 480Vac Dimensions 110x124x127mm WxHxD

MARKINGS

IND. CONT. EQ.

UL 508

UL 60950-1

Class I Div 2

pending

Marine,pending

EMC, LVD

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

INDEX

Page Page

Intended Use .......................................................3

2. Installation Requirements...................................3

3. AC-Input...............................................................4

4. DC-Input...............................................................5

5. Input Inrush Current ...........................................5

6. Output .................................................................6

7. Hold-up Time.......................................................8

8. DC-OK Relay Contact ..........................................9

9. Shut-down Input .................................................9

10. Efficiency and Power Losses..............................10

11. Reliability...........................................................11

12. Front Side and User Elements...........................12

13. Functional Diagram...........................................13

14. Terminals and Wiring........................................13

15. EMC....................................................................14

16. Environment......................................................15

17. Protection Features ...........................................16

18. Safety Features ..................................................16

19. Dielectric Strength ............................................16

20. Approvals...........................................................17

The information presented in this document is believed to be accurate and reliable and may change without notice. No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.

21. Fulfilled Standards............................................ 17

22. Used Substances ............................................... 18

23. Physical Dimensions and Weight..................... 18

24. Accessories ........................................................ 19

25. Application Notes............................................. 20

25.1. Repetitive Pulse Loading..........................20

25.2. Peak Current Capability ...........................21

25.3. Back-feeding Loads ..................................21

25.4. External Input Protection.........................21

25.5. Charging of Batteries ...............................22

25.6. Output Circuit Breakers............................22

25.7. Using only 2 Legs of a 3-Phase System ....23

25.8. Parallel Use to Increase Output Power....24

25.9. Parallel Use for Redundancy ....................24

25.10. Daisy Chaining of Outputs .......................25

25.11. Series Operation .......................................25

25.12. Inductive and Capacitive Loads................25

25.13. Use in a Tightly Sealed Enclosure ............25

25.14. Mounting Orientations ............................26

TERMINOLOGY AND ABREVIATIONS

PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .

Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.

T.b.d. To be defined, value or description will follow later.

AC 400V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances (usually ±15%) included. E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)

400Vac A figure with the unit (Vac) at the end is a momentary figure without any additional

tolerances included.

50Hz vs. 60Hz As long as not otherwise stated, AC 380V and AC 400V parameters are valid at 50Hz and AC

480V parameters are valid at 60Hz mains frequency.

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

1. INTENDED USE

This device is designed for installation in an enclosure and is intended for the general use such as in industrial control, office, communication, and instrumentation equipment.

Do not use this power supply in aircraft, trains and nuclear equipment where malfunction may cause severe personal injury or threaten human life.

2. INSTALLATION REQUIREMENTS

This device may only be installed and put into operation by qualified personnel. This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect. If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to

the factory for inspection. Mount the unit on a DIN-rail so that the output and input terminals are located on the bottom of the unit. For other

mounting orientations see de-rating requirements in this document. See chapter 25.14. This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do

not cover ventilation grid (e.g. cable conduits) by more than 30%! Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are

recommended when the device is loaded permanently with more than 50% of the rated power. Increase this clearance to 15mm in case the adjacent device is a heat source (e.g. another power supply).

WARNING

- Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input block for earth connection and not one of the screws on the housing.

- Turn power off before working on the device. Protect against inadvertent re-powering.

- Make sure that the wiring is correct by following all local and national codes.

- Do not modify or repair the unit.

- Do not open the unit as high voltages are present inside.

- Use caution to prevent any foreign objects from entering the housing.

- Do not use in wet locations or in areas where moisture or condensation can be expected.

- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.

Risk of electrical shock, fire, personal injury or death.

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

3. AC-INPUT

AC input nom. 3AC 380-480V TN, TT, IT-mains networks,

grounding of one phase is allowed except for UL508

applications AC input range min. 3x 323-576Vac continuous operation Allowed Voltage Phase to Earth 500Vac IEC 60664-1 Input frequency nom. 50–60Hz ±6% Turn-on voltage typ. 3x 305Vac steady-state value, see Fig. 3-1 Shut-down voltage typ. 3x 275Vac steady-state value, see Fig. 3-1

3AC 400V 3AC 480V

Input current typ. 1.65A 1.35A at 24V, 40A, symmetrical phase voltage,

Power factor *) typ. 0.88 0.90 at 24V, 40A, see Fig. 3-4 Start-up delay typ. 500ms 600ms see Fig. 3-2 Rise time typ. 30ms 30ms 0mF, 24V, 40A, see Fig. 3-2 typ. 40ms 40ms 40mF, 24V, 40A, see Fig. 3-2 Turn-on overshoot max. 500mV 500mV see Fig. 3-2

*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.

Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions

OUT

Rated input range

Input Voltage

see Fig. 3-3

Turn-on

Shut-down

275V 576Vac

305V

323V

Output Voltage

- 5%

Start-up

delay

Rise

Time

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

Input Current, typ.

1.6A

1.4

1.2

1.0

0.8

0.6

0.4

0.2

Output Current

4 8 12 16 20 24 28 32 36

40A

Power Factor, typ.

0.95

0.90

0.85

0.80

0.75

0.70

480Vac

400Vac

Output Current

4 8 12 16 20 24 28 32 36 40

Overshoot

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

4. DC-INPUT

DC input nom.

DC 600V

DC input range min. 450-800Vdc continuous operation Allowed Voltage Line to Earth max. 820Vdc IEC 60664-1 DC input current typ. 2.3A / 1.3A 450Vdc / 800Vdc, at 24V, 40A Turn-on voltage typ. 425Vdc steady state value Shut-down voltage typ. 375Vdc steady state value

Fig. 4-1 Wiring for DC Input

Instructions for DC use:

a) Use a battery or similar DC source.

FUSE

Power Supply

Load

b) Connect +pole to L1 and –pole to L2. c) Terminal L3 remains unused, terminal screw of L3 must be

d) Use appropriate external fuses in the + and – lines which

e) Connect the PE terminal to a earth wire or to the machine

f) DC-operation is not included in the UL approval.

Battery

For other sources contact PULS

securely tightened.

are suitable for the DC-voltage.

ground.

Additional testing might be necessary.

5. INPUT INRUSH CURRENT

An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage and after short input voltage interruptions.

The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.

Inrush current max. 6A typ. 4.5A Inrush energy max. 1.5A

3AC 400V 3AC 480V

peak

4.5A

peak

s 1.5A2s -25°C to +70°C

peak

Inrush delay (A) typ. 500ms 600ms

Fig. 5-1 Input inrush current, typical behavior

A Inrush delay

Input Current

Input: 3x 400Vac Output: 24V, 40A Ambient: 25°C

Upper curve: Input current 2A / DIV

Output Voltage

Input Voltage

Middle curve: Input voltage 1000V / DIV Lower curve: Output voltage 20V / DIV Time basis: 100ms / DIV

-25°C to +70°C

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

6. OUTPUT

Output voltage nom. 24V Adjustment range min. 24-28V guaranteed max. 30V at clockwise end position of potentiometer Factory setting typ. 24.1V ±0.2%, at full load, cold unit, in “single use” mode typ. 24.1V ±0.2%, at full load, cold unit, in “parallel use” mode typ. 25.1V at no load, cold unit, in “parallel use” mode Line regulation max. 10mV 3x 323-576Vac Load regulation max. 50mV in “single use” mode: static value, 0A Æ 40A, see Fig. 6-1

Ripple and noise voltage max. 100mVpp 20Hz to 20MHz, 50Ohm Output capacitance typ. 10 200μF

Continuous output current and output power

Output current nom. 40A at 24V, see Fig. 6-1 and Fig. 6-2 nom. 34.3A at 28V, see Fig. 6-1 and Fig. 6-2 Output power nom. 960W Short-circuit current min. 40A load impedance 25mOhm, see Fig. 6-1 and Fig. 6-2 max. 44A load impedance 25mOhm, see Fig. 6-1 and Fig. 6-2

Short term output current and output (BonusPower®)

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. The BonusPower® is available on a repeated basis. Detailed information can be found in chapter 25.1.

Once BonusPower

has been suspended by the output power limiter, a timer disables the next BonusPower® capability. The recovery timer will start as soon as the output voltage reaches the adjusted value again, which usually happens after the load has been reduced.

Output current nom. 60A at 24V, see Fig. 6-1 and Fig. 6-2 nom. 51.5A at 28V, see Fig. 6-1 and Fig. 6-2 Output power nom. 1440W BonusPower® Short-circuit current min. 60A load impedance 25mOhm, see Fig. 6-1 and Fig. 6-2 max. 68A discharge current of output capacitors not included BonusPower

time typ. 4s at 24V, 60A min. 3.5s duration until the output voltage dips max. 4.5s see Fig. 6-3 BonusPower® recovery time typ. 7s Overload free time to reset power manager, see Fig. 6-4

Peak current capability (up to several milliseconds)

The power supply can deliver a peak current which is higher than the specified short term current. This helps to start current demanding loads or to safely operate subsequent circuit breakers.

The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 25.2.

Peak current voltage dips typ. from 24V to 19V at 80A for 50ms, resistive load typ. from 24V to 12V at 200A for 2ms, resistive load typ. from 24V to 10V at 200A for 5ms, resistive load

typ. 1000mV in “parallel use” mode: static value, 0A Æ 40A,

see Fig. 6-2

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

Fig. 6-1 Output voltage vs. output current in

Output Voltage

28V

“single use” mode, typ.

Adjustment

Range

4 0

Output Current

01020 4050

30 60

c o

n t

n u o u s

s h

o r

t e

r m

Fig. 6-2 Output voltage vs. output current in

Output Voltage

“parallel use” mode, typ.

(Parallel Use, typ.)

29V

28V

27V

26V

Continuously

allowed

25V

Factory

24V

setting

23V 22V

Output Current

02040

Fig. 6-3 Bonus time vs. output power Fig. 6-4 BonusPower® recovery time

Bonus Time

110 120 130 140 150

Output Power

Power Demand

100%

Output Voltage

Bonus

Time

160%

Limitation by Power Manager

Recovery Time

Bonus Power disabled

The BonusPower

Fig. 6-5 BonusPower® after input turn-on

Input Voltage

is available as soon as power comes on.

Adjustment

Range

Bonus Power

60A503010

Output Voltage

Output Power

150%

100%

Bonus

Power

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QT40.241

Q-Series

24V, 40A, THREE PHASE INPUT

7. HOLD-UP TIME

3AC 400V 3AC 480V Hold-up Time typ. 25ms 25ms at 24V, 40A, see Fig. 7-1 typ. 50ms 50ms at 24V, 20A, see Fig. 7-1

The hold-up times for an operation on only two legs of a three phase system differ, curves can be found in chapter

25.7.

Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions

Hold-up Time

50ms

320 360 400 440 3x480Vac

24V, 20A, typ.

24V, 20A, min.

Input Voltage

Output Voltage

L1 L2 L3

- 5%

Hold-up Time

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