Puls QS20.241, QS20.241-A1, QS20.241-C1 Data Sheet

QS20.241, QS20.241-A1, QS20.241-C1

Output voltage

DC 24V

Adjustment range

Output current

20 – 17A

continuous

30 – 26A

for typ. 4s

Output power

480W

continuous

for typ. 4s

Output ripple

20Hz to 20MHz

Input voltage

Mains frequency

50-60Hz

±6%

AC Input current

4.56 / 2.48A

at 120 / 230Vac

Power factor

0.95 / 0.90

at 120 / 230Vac

AC Inrush current

typ. 9 / 7A peak

at 120 / 230Vac

Efficiency

92.4 / 93.9%

at 120 / 230Vac

Losses

Temperature range

Derating

12W/°C

+60 to +70°C

Hold-up time

typ. 32 / 51ms

at 120 / 230Vac

Dimensions

82x124x127mm

WxHxD

IND. CONT. EQ.

Q-Series

ENERAL DESCRIPTION

The most outstanding features of this Dimension QSeries DIN-rail power supply are the high efficiency and the small size, which are achieved by a synchronous rectification and further novel design details.

With short-term peak power capability of 150% and built-in large sized output capacitors, these features help start motors, charge capacitors and absorb reverse energy and often allow a unit of a lower wattage class to be used.

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, a wide range input voltage design and virtually no input inrush current make installation and usage simple. Diagnostics are easy due to the dry DC-ok contact, a green DC-ok LED and red overload LED.

Unique quick-connect spring-clamp terminals allow a safe and fast installation and a large international approval package for a variety of applications makes this unit suitable for nearly every situation.

24V, 20A, SINGLE PHASE INPUT

OWER SUPPLY

 AC 100-240V Wide-range Input  Width only 82mm  Efficiency up to 93.9%  ATEX and IECEx Approved (-A1 Version)  -C1 Version with Conformal Coated PC-board  150% (720W) Peak Load Capability  Safe Hiccup  Easy Fuse Tripping due to High Overload Current  Active Power Factor Correction (PFC)  Negligible low Inrush Current Surge  Short-term Operation down to 60Vac and up to 300Vac  Full Power Between -25°C and +60°C  DC-OK Relay Contact  Quick-connect Spring-clamp Terminals  3 Year Warranty

PLUS

Overload Mode

HORT-FORM DATA

24 - 28V

720W

< 100mVpp

AC 100-240V

39.6 / 31.4W

-25°C to +70°C operational

15%

120 / 230Vac

RDER NUMBERS

Power Supply QS20.241 24-28V Standard unit

Accessory ZM2.WALL Wall mount bracket

Sep. 2019 / Rev. 2.3 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.

ARKINGS

QS20.241-A1 ATEX approved unit QS20.241-C1 Conformal coated unit

ZM15.SIDE Side mount bracket YR40.242 Redundancy module YR40.245 Redundancy module

UL 508

IECEx ATEX

II 3G Ex ec nC II T3 Gc

UL 60950-1

Class I Div 2

EMC, LVD, RoHS

Marine

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QS20.241, QS20.241-A1, QS20.241-C1

Q-Series

NDEX

Page Page

1. 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 ..........................................8

9. Efficiency and Power Losses................................9

10. Lifetime Expectancy and MTBF ......................... 10

11. Functional Diagram ........................................... 10

12. Terminals and Wiring ........................................ 11

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

14. EMC .................................................................... 13

15. Environment ...................................................... 14

16. Protection Features ........................................... 15

17. Safety Features .................................................. 15

18. Dielectric Strength ............................................ 16

19. Approvals ........................................................... 17

20. Physical Dimensions and Weight ...................... 18

24V, 20A, SINGLE PHASE INPUT

21. Accessories ........................................................ 19

21.1. ZM2.WALL Wall Mounting Bracket ....... 19

21.2. ZM15.SIDE Side Mounting Bracket ........ 19

21.3. YR40 Redundancy Modules ..................... 20

22. Application Notes ............................................. 21

22.1. Repetitive Pulse Loading .......................... 21

22.2. Peak Current Capability ........................... 22

22.3. Back-feeding Loads .................................. 22

22.4. External Input Protection ......................... 22

22.5. Charging of Batteries ............................... 23

22.6. Output Circuit Breakers ............................ 23

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

22.8. Parallel Use for Redundancy .................... 24

22.9. Series Operation ....................................... 25

22.10. Inductive and Capacitive Loads................ 25

22.11. Operation on Two Phases ........................ 25

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

22.13. Mounting Orientations ............................ 26

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.

ERMINOLOGY 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 230V 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)

230Vac 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 230V parameters are valid at 50Hz mains frequency.

may A key word indicating flexibility of choice with no implied preference.

shall A key word indicating a mandatory requirement.

should A key word indicating flexibility of choice with a strongly preferred implementation.

Sep. 2019 / Rev. 2.3 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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QS20.241, QS20.241-A1, QS20.241-C1

1. I

2. I

WARNING

Q-Series

24V, 20A, SINGLE PHASE INPUT

NTENDED 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 equipment, where malfunction may cause severe personal injury or threaten human life.

This device is designed for use in hazardous, non-hazardous, ordinary or unclassified locations.

NSTALLATION 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 terminals are located on the top and the input terminals are located

on the bottom of the unit. For other mounting orientations see de-rating requirements in this document. See chapter

22.13. 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).

A disconnecting means shall be provided for the output of the power supplies when used in applications according to CSA C22.2 No 107.1-01.

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

- 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.

Notes for use in hazardous location areas:

The power supply is suitable for use in Class I Division 2 Groups A, B, C, D locations. Additionally, the QS20.241-A1 is suitable for use in Group II Category 3 (Zone 2) environments and is evaluated

according to EN 60079-0:2009 and EN 60079-15:2010.

WARNING EXPLOSION HAZARDS!

Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment unless power has been switched off or the area is known to be non-hazardous.

A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils the requirements of the EN 60079-15.

Sep. 2019 / Rev. 2.3 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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QS20.241, QS20.241-A1, QS20.241-C1

3. AC-I

AC input

Allowed voltage

Input frequency

nom.

50–60Hz

±6%

Turn

Shut

Input current

Power factor *)

Crest factor **)

Start

Rise time

Turn

Turn-on

85V

Rated

input range

max.

500ms

OUT

60V 300Vac

276V

Shut-down

full

power

for

200ms

Start-up

delay

Rise

Time

Overshoot

- 5%

Output Voltage

Input Voltage

20A

2 4 6 8 10 12 14 16 18

Output Current

Input Current, typ.

230Vac

120Vac

100Vac

Power Factor, typ.

2 4 6 8 10 12 14 16 18 20A

0.75

0.8

0.85

0.9

0.95

1.0

Output Current

230Vac

100Vac 120Vac

Q-Series

24V, 20A, SINGLE PHASE INPUT

NPUT

nom. AC 100-240V suitable for TN-, TT- and IT mains networks

input range min. 85-276Vac continuous operation

min. 60-85Vac full power for 200ms, no damage between 0 and 85Vac min. 276-300Vac < 500ms

L or N to earth max. 276Vac continuous, IEC 62103

-on voltage typ. 77Vac steady-state value, see Fig. 3-1

-down voltage typ. 73Vac steady-state value, see Fig. 3-1 typ. 53Vac dynamic value

AC 100V AC 120V AC 230V

typ. 5.47A 4.56A 2.48A at 24V, 20A, see Fig. 3-3

typ. 0.96 0.95 0.90 at 24V, 20A, see Fig. 3-4 typ. 1.6 1.7 2.05 at 24V, 20A

-up delay typ. 640ms 610ms 660ms see Fig. 3-2

typ. 80ms 80ms 80ms 0mF, 24V, 20A, see Fig. 3-2

typ. 85ms 85ms 85ms 20mF, 24V, 20A, see Fig. 3-2

-on overshoot max. 100mV 100mV 100mV see Fig. 3-2

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

Sep. 2019 / Rev. 2.3 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.

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

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QS20.241, QS20.241-A1, QS20.241-C1

4. DC-I

DC input

DC input range

DC in

Allowed Voltage L/N to Earth

Turn

Shut-down voltage

typ.

69Vdc

steady state value

Load

Power Supply

Battery

5. I

Inrush current

Inrush energy Inrush delay (A)

Q-Series

NPUT

nom. DC 110-150V -20%/+25%

min. 88-187Vdc

put current typ. 4.6A 110Vdc, at 24V, 20A

max. 375Vdc IEC 62103

-on voltage typ. 74Vdc steady state value

Fig. 4-1 Wiring for DC Input

Instructions for DC use:

a) Use a battery or similar DC source.

For other sources contact PULS b) Conne c) Connect the PE terminal to an earth wire or to the

ct +pole to L and –pole to N.

machine ground.

24V, 20A, SINGLE PHASE INPUT

NPUT 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.

AC 100V AC 120V AC 230V

max. 13A

typ. 11A

max. 5A2s 5A2s 5A2s over entire temperature range;

typ. 400ms 400ms 650ms see (A) in Fig. 5-1

Fig. 5-1 Input inrush current, typical behavior

13A

peak

A…. Inrush delay

Input: 230Vac Output: 24V, 20A Ambient: 25°C Upper curve: Input current 5A / DIV Middle curve: Input voltage 500V / DIV Lower curve: Output voltage 20V / DIV Time basis: 100ms / DIV

13A

peak

over entire temperature range;

peak

over entire temperature range;

peak

mains interruptions > 750ms

Sep. 2019 / Rev. 2.3 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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QS20.241, QS20.241-A1, QS20.241-C1

6. O

Output voltage

Adjustment range

Factory setting

Line regulation

Load regulation

Ripple and noise voltage

Output current

Outpu

BonusPower

max.

4.5s

BonusPower

Overload behaviour

Short

Output capacitance

Q-Series

24V, 20A, SINGLE PHASE INPUT

UTPUT

nom. 24V

min. 24-28V guaranteed

max. 30V

typ. 24.1V ±0.2%, at full load, cold unit

max. 10mV 60-300Vac

max. 100mV static value, 0A  20A

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

nom. 20A continuously available at 24V, see Fig. 6-1 nom. 17A continuously available at 28V, see Fig. 6-1 nom. 30A

nom. 26A

t power nom. 480W continuously available

nom. 720W *) short term available BonusPower

time typ. 4s duration until the output voltage dips, see Fig. 6-2

min. 3.5s

****)

short term available BonusPower

at clockwise end position of potentiometer

at 24V, for typical 4s, see Fig. 6-1

short term available BonusPower

at 28V, for typical 4s, see Fig. 6-1

® *)

recovery time typ. 7s overload free time to reset power manager Fig. 6-4

cont. current output voltage > 20Vdc, see Fig. 6-1

Hiccup

-circuit current min. 30A max. 40A max. 14A

PLUS

***)

load impedance 50mOhm, see Fig. 6-3

***)

load impedance 50mOhm, see Fig. 6-3

***)

average (R.M.S.) current, load impedance <10mOhm,

mode

**)

output voltage < 20Vdc, see Fig. 6-1

see Fig. 6-3

typ. 8 500µF included inside the power supply

*) 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 shortterm duration is hardware controlled by an output power manager. This BonusPower can be found in chapter 22.1. If the power supply is loaded longer with the BonusPower Fig. 6-2), 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 behaviour is called hiccup mode, which is described below. If the voltage is above 20V, the unit continuously delivers current.

PLUS

**) Hiccup

At heavy overloads (when output voltage falls below 20V), the power supply delivers continuous output current for 2s. After this, the output is switched off for approx. 17s before a new start attempt is automatically performed. This cycle is repeated as long as the overload exists. If the overload has been cleared, the device will operate normally. See also Fig. 6-3. During the off-period a small rest voltage and rest current is present on the output.

***) Discharge current of output capacitors is not included.

****) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not

guaranteed value which can be achieved. The typical value is about 28.5V.

Mode

is repeatedly available. Detailed information

than shown in the Bonus-time diagram (see

Sep. 2019 / Rev. 2.3 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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QS20.241, QS20.241-A1, QS20.241-C1

Peak current voltage dips

Output Voltage

0 5 10 20 25

28V

40A15 30

Output Current

Short term <5s then auto switching to curve +

Below 20Vdc hiccup mode

Continuously available

0 528W 576W 624W 672W 720W

768W

10s

Output Power

min

max

typ

Output Current

35A

17s

17s17s 2s 2s2s

Start of short circuit

End of

short circuit

Power Demand

100%

imitation by

Power Manager

Output Voltage

Bonus Power disabled

Bonus

Time

Recovery Time

100%

Output Voltage

Input Voltage

Bonus

Power

Output Power

150%

Short of

Output

100%

Output Voltage

Bonus

Power

Output Power

150%

Q-Series

24V, 20A, SINGLE PHASE INPUT

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 22.2.

typ. from 24V to 20V at 40A for 50ms, resistive load typ. from 24V to 17V at 100A for 2ms, resistive load typ. from 24V to 16V at 100A for 5ms, resistive load

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

typ.

Fig. 6-2 Bonus time vs. output power

Fig. 6-3 Short-circuit on output, hiccup mode (typ.) Fig. 6-4 BonusPower® recovery time

The BonusPower® is available as soon as power comes on and immediately after the end of an output short circuit or output overload.

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

Sep. 2019 / Rev. 2.3 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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QS20.241, QS20.241-A1, QS20.241-C1

7. H

Hold

100ms

85 120 155 190 230Vac

Input Voltage

24V, 20A, min.

Hold-up Time

24V, 20A, typ.

24V, 10A, min.

24V, 10A, typ.

- 5%

Hold-up Time

Zero Transition

Output Voltage

Input Voltage

8. DC-OK RELAY CONTACT

Contact closes

Contact opens Contact re-closes

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

Contact

Isolation voltage

250ms

0.9* V

ADJ

1ms

10%

open

OUT

= V

ADJ

openclosed

closed

1ms

Q-Series

24V, 20A, SINGLE PHASE INPUT

OLD-UP TIME

AC 100V AC 120V AC 230V

-up Time typ. 64ms 64ms 99ms at 24V, 10A, see Fig. 7-1 typ. 32ms 32ms 51ms at 24V, 20A, see Fig. 7-1

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

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 connected in parallel to the power supply output.

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

ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load

min 1mA at 5Vdc min. permissible load

See dielectric strength table in section 18.

Fig. 8-1 DC-ok relay contact behavior

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.

Sep. 2019 / Rev. 2.3 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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