Puls QS10.DNET Data Sheet

Q-Series

1. GENERAL DESCRIPTION

The QS10.DNET power supply is a derivate of the
Dimension QS10 family, which is specially designed
to meet the DeviceNet
exists beside the QS5.DNET, which is the right choice
to supply networks that use NEC Class 2 cables.

The specialties of DeviceNet

 The nominal and overload currents are sized for

the ratings of the DeviceNet

 Large load capacitors can be charged in a very

short period of time.

 After turn on, the output voltage increases

according to the DeviceNet

 The upper level of the output level is limited to

protect the network.

The most outstanding features are a high efficiency,
compact size, wide-range input voltage, a very low
inrush surge and a DC-ok contact. High immunity to
transients and power surges and a low
electromagnetic emission makes usage in nearly
every environment possible.

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

®

requirement. The QS10.DNET

®

power supplies are:

®

cables.

®

timing specification.

QS10.DNET

24V, 8A, SINGLE PHASE INPUT

POWER SUPPLY

■ AC 100-240V Wide-range Input

■ NEC Class 1 Compliant

■ DeviceNet

■ Efficiency up to 92.7%

■ Width only 60mm

■ Active Power Factor Correction, PFC

■ Short-term Operation from 60Vac to 300Vac

■ Full Power Between -25°C and +60°C

■ Negligibly low Inrush Current

■ DC-OK Relay Contact

■ Quick-connect Spring-clamp Terminals

■ 3 Year Warranty

2. SHORT-FORM DATA

Output voltage DC 24V
Adjustment range 24-24.5V
Output current 8A

Output power

Output ripple < 50mVpp 20Hz to 20MHz
Input voltage AC 100-240V ±15%
Mains frequency 50-60Hz ±6%
AC Input current 1.77 / 1.0A at 120 / 230Vac
Power factor 0.98 / 0.92 at 120 / 230Vac
AC Inrush current typ. 4 / 7A peak at 120 / 230Vac
DC Input voltage DC 110-300V
DC Input current 1.9 / 0.7A at 110 / 300Vdc
Efficiency 92.3 / 92.7% at 120 / 230Vac
Losses 16.0 / 15.1W at 120 / 230Vac
Temperature range -25°C to +70°C operational
Derating 5W/°C +60 to +70°C
Hold-up time typ. 33 / 34ms at 120 / 230Vac
Dimensions 60x124x117mm WxHxD

®

Approved

192W

-

-20%/+25%

3. ORDER NUMBERS

Power Supply

Accessory ZM1.WALL Wall mount bracket
ZM13.SIDE Side mount bracket
YR2.DIODE Decoupling module
UF20.241 Buffer unit

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

QS10.DNET

Standard unit

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4. MARKINGS

IND. CONT. EQ.

UL 508

UL 60950-1,

UL 1604 (Class1 Div2)

EMC, LVD

GL

Marine

1/22

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

INDEX PAGE INDEX PAGE

1.

General Description ............................................1

2. Short-form Data ..................................................1

3. Order Numbers....................................................1

4. Markings..............................................................1

5. AC-Input...............................................................3

6. Input Inrush Current ...........................................4

7. DC-Input...............................................................4

8. Output .................................................................5

9. Hold-up Time.......................................................6

10. DC-OK Relay Contact ..........................................7

11. Efficiency and Power Losses................................8

12. Functional Diagram.............................................9

13. Front Side and User Elements.............................9

14. Terminals and Wiring........................................10

15. Reliability...........................................................10

16. EMC....................................................................11

17. Environment......................................................12

18. Protection Features...........................................13

19. Safety .................................................................13

20. Dielectric Strength ............................................13

21. Approvals.......................................................... 14

22. Fulfilled Standards............................................ 14

23. Used Substances ............................................... 14

24. Physical Dimensions and Weight..................... 15

25. Installation and Operation Instructions .......... 15

26. Accessory........................................................... 16

27. Application Notes............................................. 17

27.1. Peak Current Capability......................... 17

27.2. Back-feeding Loads................................ 17

27.3. Output Circuit Breakers ......................... 18

27.4. External Input Protection....................... 19

27.5. Parallel Use to Increase Output Power . 19

27.6. Parallel Use for Redundancy.................. 19

27.7. Daisy Chaining of Outputs..................... 20

27.8. Series Operation..................................... 20

27.9. Inductive and Capacitive Loads ............. 20

27.10. Operation on Two Phases...................... 21

27.11. Use in a Tightly Sealed Enclosure .......... 21

27.12. Mounting Orientations.......................... 22

INTENDED USE

The power supply shall only be installed and put into operation by qualified personnel.
This power supply 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 device in aircraft, trains and nuclear
equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.

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 230V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances (usually ±20%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50Hz and AC
120V parameters are valid at 60Hz mains frequency.

230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional

tolerances included.

DISCLAIMER

The information presented in this document is believed to be accurate and reliable and may change without notice.

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

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. 81Vac steady-state value, see Fig. 5-1
Shut-down voltage typ. 63Vac steady-state value, see Fig. 5-1

AC 100V AC 120V AC 230V

Input current typ. 2.13A 1.77A 1.0A at 24V, 8A, see Fig. 5-3
Power factor *) typ. 0.99 0.98 0.92 at 24V, 8A, see Fig. 5-4
Crest factor **) typ. 1.65 1.67 1.85 at 24V, 8A
Start-up delay typ. 800ms 650ms 340ms see Fig. 5-2
Rise time typ. 8ms 8ms 8ms 0mF, 24V, 8A, 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

P

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

Input Current, typ.

3.0A

2.5

2.0

1.5

1.0

0.5

0

1234567

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. 55Vac dynamical value

typ. 15ms 15ms 15ms 10mF, 24V, 8A, see Fig. 5-2
max. 20mV 20mV 20mV see Fig. 5-2

max.

500ms

276V

c

a

V

0

0

1

c

a

V

0

2

1

c

a

V

0

3

2

Output Current

8A

V

IN

Intput
Voltage

Output
Voltage

Power Factor, typ.

1.0

0.95

0.9

0.85

0.8

0.75
1234567

- 5%

Start-up

delay

Rise

Time

100Vac

120Vac

c

a

V

0

3

2

Output Current

8A

Overshoot

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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3/22

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

6. INPUT INRUSH CURRENT

An active inrush limitation circuitry 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 milliseconds after switch-on.

Inrush current max. 10A
typ. 5A
Inrush energy
Inrush delay

max. 1A2s 1A2s 1A2s -25°C to +70°C
typ. 650ms 520ms 250ms

Fig. 6-1 Input inrush current, typical behavior

A

B

Input Current

Input Voltage

Output Voltage

AC 100V AC 120V AC 230V

10A

peak

4A

peak

10A

peak

7A

peak

-25°C to +70°C

peak

-25°C to +70°C

peak

A: Inrush delay
B: Start-up delay

Input: 230Vac
Output: 24V, 8A
Ambient: 25°C

Upper curve: Input current 2A / 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. 1.9A / 0.7A 110Vdc / 300Vdc, at 12V, 15A output load
Turn-on voltage typ. 80Vdc steady state value
Shut-down voltage typ. 55Vdc steady state value

Fig. 7-1 Wiring for DC Input

Battery

+

-

Fuse

Power Supply

AC

internal

fused

L

N

PE

DC

+

Load

-

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

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 a 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.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

8. OUTPUT

Output voltage
Adjustment range
max. 25V at clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max. 100mV static value, 0A  8A  0A
Ripple and noise voltage
Output capacitance typ. 7 000µF
Output current nom. 8A at 24V, see Fig. 8-1

12A

Output power
Short-circuit current min. 7A load impedance 100mOhm, see Fig. 8-1
max. 13A load impedance 100mOhm, see Fig. 8-1

Peak current capability (up to several ms)

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 27.1.

Peak current voltage dips typ. from 24V to 20V at 16A for 20ms
typ. from 24V to 20V

Fig. 8-1 Output voltage vs. output current, typ.

nom. 24V
min. 24-24.5V guaranteed, multi turn potentiometer

24.1V

±0.2%, at full load, cold unit

max. 10mV 60 to 300Vac

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

for typ. 200ms to charge network capacitors
(= BonusPower

®

)

nom. 192W 24V, continuous

at 32A for 2ms

typ. from 24V to 16.5V

at 32A for 5ms

Output Voltage

28V

24

20

16

12

8

4
0

02 6810A

Output Current

4

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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5/22

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

The Bonus Power

Fig. 8-2 BonusPower® after input turn-on

Intput
Voltage

®

is available as soon as power comes on and immediately after the end of an output short circuit.

Fig. 8-3 BonusPower® after output short

Short of

Output

Output
Voltage

Output
Voltage

Output
Power

100%

150%

Bonus
Power

Output
Power

150%

100%

Bonus
Power

9. HOLD-UP TIME

AC 100V AC 120V AC 230V

Hold-up Time typ. 31ms 32ms 32ms 8A, 24V, see
typ. 72ms 72ms 73ms 4A, 24V, see Fig. 9-1

Fig. 9-1 Hold-up time vs. input voltage Fig. 9-2 Shut-down behavior, definitions

Hold-up Time

75ms

60

24V, 4A, typ.

m

,

,

A

4

4

2

V

.

n

i

Intput
Voltage

45

.

p

y

t

,

A

8

,

30

V

4

2

.

n

m

i

A

,

8

,

V

2

4

15

0

85 120 155 190 230Vac

Input Voltage

Output
Voltage

Hold-up Time

Note: At no load, the hold-up time can be up to one minute. The green DC-ok lamp is on during this time.

Fig. 9-1

Zero Transition

- 5%

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

10. DC-OK RELAY CONTACT

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

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

V

=

V

OUT

ADJ

90%
V

ADJ

open

<

1ms

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

Note:

The DC-ok feature requires that the output voltage

10%

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

>

1ms

250ms

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

openclosed closed

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

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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7/22

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

11. EFFICIENCY AND POWER LOSSES

AC 100V AC 120V AC 230V

Efficiency typ. 91.5% 92.3% 92.7% 8A, 24V,
Power losses typ. 17.8W 16.0W 15.1W 8A, 24V,
typ. 5.6W 5.7W 5.9W 0A

Fig. 11-1 Efficiency vs. output current at 24V Fig. 11-2 Losses vs. output current at 24V

Efficiency

94%

93
92
91
90
89
88
87
86

2345678A

Output Current

230Vac

120Vac
100Vac

Power Losses

18W

16

14

12

10

8

6

012345678A

Fig. 11-3 Efficiency vs. input voltage, 24V, 8A Fig. 11-4 Losses vs. input voltage, 24V, 8A

Efficiency

94%

93

92

91

90

89

88

85 120 155 190 225 260

Input Voltage

Vac

Power Losses

20W

18

16

14

12

10

8

85 120 155 190 225 260

100Vac

120Vac

230Vac

Output Current

Input Voltage

Vac

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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8/22

Q-Series

12. FUNCTIONAL DIAGRAM

Fig. 12-1 Functional diagram

L

N

Input Fuse
Input Filter
Input Rectifier
Active Transient Filter &
Inrush Current Limiter

Temper-

ature
Shut­down

Output
Power

Manager

PFC

Converter

Output

Over-

Voltage

Protection

Power

Converter

Output
Voltage
Monitor

QS10.DNET

24V, 8A, SINGLE PHASE INPUT

Output

Voltage

Regulator

Output

Filter

DC-ok
Relay

V

OUT

+
+

-

-

Overload
lamp

DC-ok
lamp

DC-ok
contact

13. FRONT SIDE AND USER ELEMENTS

Fig. 13-1 Front side

Output Terminals

Quick-connect spring-clamp
terminals, no tools required

+ Positive output

- Negative (return) output

Dual pins per pole
DC ok Relay contact
(NO-contact)

Input Terminals

Quick-connect spring-clamp
terminals, no tools required

N … Neutral input
L … Line (hot) input

... PE (Protective Earth) input

See chapter 14 “Terminals and
Wiring” to choose appropriate
wire gauges

Output voltage potentiometer
(multi turn potentiometer)
Open the flap to tune the output voltage.
Factory setting: 24.1V

DC-ok lamp (green)
Overload lamp (red)

Normal mode OFF ON Closed
BonusPower®

mode
Overload

< 90%)

(V

OUT

Short-circuit

= ca. 0V)

(V

OUT

Over­temperature

No input power OFF OFF Open

Overload

lamp

OFF ON Closed

ON OFF Open

ON OFF Open

Intermitted OFF

DC-ok lamp and DC-ok contact
function synchronized

DC-ok

lamp

DC-ok

contact

Open

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

14. TERMINALS AND WIRING

Type Bi-stable, quick-connect spring clamp terminals. IP20 Finger safe construction.

Suitable for field- and factory installation. Shipped in open position.
Solid wire 0.5-6mm
Stranded wire 0.5-4mm2
American wire gauge 20-10 AWG
Ferrules allowed, but not required
Wire stripping length 10mm / 0.4inch
Pull-out force 10AWG:80N, 12AWG:60N, 14AWG:50N, 16AWG:40N (according to UL486E)

Fig. 14-1 Connecting a wire

1.

Insert the wire

To disconnect wire: same procedure
vice versa

2.

Snap the lever

2

Instructions:

a) Use appropriate copper cables that are designed

for an operating temperature of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°C minimum.

b) Follow national installation codes and

installation regulations!

c) Ensure that all strands of a stranded wire enter

the terminal connection!

d) Up to two stranded wires with the same cross

section are permitted in one connection point
(except PE wire).

e) Do not use the unit without PE connection.

15. RELIABILITY

Lifetime expectancy min. 46 000h 57 000h 65 000h 40°C, 24V, 8A
min. 107 000h 115 000h 112 000h 40°C, 24V, 4A
min. 130 000h 15 years 15 years 25°C, 24V, 8A
MTBF SN 29500, IEC 61709 511 000h 572 000h 621 000h 40°C, 24V, 8A
884 000h 898 000h 1 074 000h 25°C, 24V, 8A
MTBF MIL HDBK 217F 357 000h 364 000h 369 000h 40°C, 24V, 8A, Ground Benign GB40
489 000h 499 300h 505 000h 25°C, 24V, 8A, Ground Benign GB25

The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.

Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s
manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.

MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates
reliability of a device. It is the statistical representation of the likelihood of the unit to fail and does not necessarily
represent the life of a product.

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

AC 100V AC 120V AC 230V

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10/22

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

16. EMC

The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions. CE mark is in conformance with EMC guideline 89/336/EEC and
93/68/EEC and the low-voltage directive (LVD) 73/23/EWG. A detailed EMC Report is available upon request

EMC Immunity

Electrostatic discharge EN 61000-4-2 Contact discharge

Electromagnetic RF field EN 61000-4-3 80MHz-1GHz 10V/m Criterion A

Fast transients (Burst) EN 61000-4-4 Input lines

Surge voltage on input EN 61000-4-5 L  N

Surge voltage on output EN 61000-4-5 +  -

Conducted disturbance EN 61000-4-6 0.15-80MHz 10V Criterion A

Mains voltage dips EN 61000-4-11 70% of 100Vac

Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C

Voltage sags SEMI F47 0200

Input voltage swells PULS internal standard 300Vac, 500ms Criterion A

Powerful transients VDE 0160 over entire load

Criterions:
A: Power supply shows normal operation behavior within the defined limits.

C: Temporary loss of function is possible. Power supply might shut-down and restarts by itself. No damages or hazards for the power supply occur.

EMC Emission

Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines
EN 55022 Class B, output lines
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 Fulfilled, active PFC
Voltage fluctuations, flicker EN 61000-3-3 Fulfilled

This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.

Switching Frequencies

Switching frequency 1 35kHz nearly constant
Switching frequency 2 105kHz nearly constant
Switching frequency 3 40kHz to 220kHz input voltage and load dependent

EN 61000-6-1 EN 61000-6-2

Air discharge

Output lines

N / L  PE

+ / -  PE

40% of 100Vac
40% of 100Vac

range

EN 61000-6-3 and EN 61000-6-4 Generic standards

The power supply has three converters with three different switching frequencies
included. Two are nearly constant. The other one is input voltage and load dependent.

Generic standards
8kV

15kV

4kV
2kV

2kV
4kV

500V
500V

70Vac, 10ms
40Vac, 100ms
40Vac, 1000ms

96Vac, 1000ms
84Vac, 500ms
60Vac, 200ms

750V, 1.3ms Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion C
Criterion C

Criterion A
Criterion A
Criterion A

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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11/22

C

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

17. ENVIRONMENT

Operational temperature -25°C to +70°C (-13°F to 158°F) reduce output power above +60°C
Output de-rating 5W/°C 60-70°C (140°F to 158°F), see Fig. 17-1
Storage temperature -40 to +85°C (-40°F to 185°F) storage and transportation

Humidity 5 to 95% r.H. IEC 60068-2-30

Vibration sinusoidal 2-17.8Hz: ±1.6mm;

17.8-500Hz: 2g
2 hours / axis

2(s3

Vibration random

0.5m
2 hours / axis

)

Shock 30g 6ms, 20g 11ms

3 bumps / direction,
18 bumps in total

Altitude 0 to 6000m (0 to 20 000ft) Reduce output power or ambient temperature

Output de-rating (for altitude) 15W/1000m or 5°C/1000m above 2000m (6500ft), see Fig. 17-2
Over-voltage category III EN 50178, altitudes up to 2000m
II Altitudes from 2000m to 6000m
Degree of pollution 2 EN 50178, not conductive

Fig. 17-1 Output current vs. ambient temp., Fig. 17-2 Output current vs. altitude

Allowed Output
Current at 24V

8A

6

4

2

0

-25 0 20 40

Ambient Temperature

60

70°

The ambient temperature is defined as the air temperature 2cm below the unit.

Do not energize while condensation is present
IEC 60068-2-6

IEC 60068-2-64

IEC 60068-2-27

above 2000m sea level.

Allowed Output
Current at 24V

8A

6

4

.

A

.

.

a

T

m

b

<

6

C

°

2

0

B

.

.

.

T

C

.

.

.

T

0 2000 4000 6000m

0

a

b

m

5

<

C

°

0

a

b

m

4

<

C

°

0

A

Altitude

C

B

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

18. PROTECTION FEATURES

Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection typ. 27Vdc

max. 29.5Vdc

Output over-current protection Electronically limited See Fig. 8-1
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm e.g. screws, small parts
Over-temperature protection yes output shut-down with automatic restart
Input transient protection MOV (Metal Oxide Varistor) and active transient filter
Internal input fuse T6.3A H.B.C. not user replaceable

Note: In case of a protection event, audible noise may occur.

In case of an internal power supply defect, a redundant
circuitry limits the maximum output voltage. The output
shuts-down and automatically attempts to restart.

19. SAFETY

Input / output separation SELV IEC/EN 60950-1
PELV EN 60204-1, EN 50178, IEC 60364-4-41
double or reinforced insulation
Class of protection I PE (Protective Earth) connection required
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm between housing and PE terminal
Touch current (leakage current) typ. 0.19mA 100Vac, 50Hz, TN mains
typ. 0.29mA 120Vac, 60Hz, TN mains
typ. 0.53mA 230Vac, 50Hz, TN mains
< 0.25mA 110Vac, 50Hz, TN mains
< 0.38mA 132Vac, 60Hz, TN mains
< 0.74mA 264Vac, 50Hz, TN mains

20. DIELECTRIC STRENGTH

The output voltage is floating and has no ohmic connection to ground.
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or

any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in
which a load starts unexpectedly or can not be switched off any more when unnoticed earth faults occur.

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

Fig. 20-1 Dielectric strength

Input DC-ok

L

N

AD

Earth

B

B

Output

C

+

-

www.pulspower.com Phone [phone] Germany

Type test 60s 2500Vac 3000Vac 500Vac 500Vac

Factory test 5s 2500Vac 2500Vac 500Vac 500Vac

Field test 5s 2000Vac 2000Vac 500Vac 500Vac
Type tests and factory tests:

Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect L and N together as well as all
output poles.

A B C D

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

21. APPROVALS

IEC 60950-1

IECEE

CB SCHEME

DeviceNet

UL 508

UL 60950-1

UL 1604

The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations as well as for Class I

Marine

SEMI F47

®

IND. CONT. EQ.

Zone 2 Groups IIA, IIB and IIC locations. Substitution of components may impair suitability for
Class I Division 2 environment. Do not disconnect equipment unless power has been switched
off. Wiring must be in accordance with Class I, Division 2 wiring methods of the National
Electrical Code, NFPA 70, and in accordance with other local or national codes.

GL

ABS

CB Scheme,
Information Technology Equipment

DeviceNet conformance tested by the open DeviceNet® vendor
organization.

LISTED E198865 listed for use in U.S.A. (UL 508) and Canada (C22.2
No. 14-95)
Industrial Control Equipment

RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-

1) and Canada (C22.2 No. 60950)
Information Technology Equipment, Level 3

RECOGNIZED E246877 recognized for use in U.S.A. (UL 1604) and
Canada (C22.2 No. 213-M1987)
Hazardous Location Class I Div 2 T4 Groups A,B,C,D and
Class I Zone 2 Groups IIA, IIB and IIC

GL (Germanischer Lloyd) classified and ABS (American Bureau for
Shipping) PDA for marine and offshore applications.

Environmental category: C, EMC2

SEMI F47-0200 Power Quality Star
Ride-through compliance for semiconductor industry.
Full SEMI range compliance (Input: 120Vac or 208Vac, output: 192W)

22. FULFILLED STANDARDS

EN 61558-2-17 Safety of Power Transformers

EN/IEC 60204-1 Safety of Electrical Equipment of Machines

EN/IEC 61131-2 Programmable Controllers

EN 50178 Electronic Equipment in Power Installations

23. USED SUBSTANCES

The unit does not release any silicone and is suitable for the use in paint shops.

Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.

Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.

The production material within our production does not include following toxic chemicals:
Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCT), Pentachlorophenol (PCP), Polychlorinated naphthalene
(PCN), Polybrom Biphenyll (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated
Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbest, Mercury, Silicia

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

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24. PHYSICAL DIMENSIONS AND WEIGHT

Weight 900g / 1.98lb
DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.

The DIN-rail height must be added to the depth (117mm) to calculate the total required
installation depth.

Electronic files with mechanical data can be downloaded at www.pulspower.com

Fig. 24-1 Front view Fig. 24-2 Side view

25. INSTALLATION AND OPERATION INSTRUCTIONS

Mounting Orientation:

Output terminal must be located on top and input terminal on the bottom. For other orientations see section 27.12.

Cooling:

Convection cooled, no forced cooling required. Do not cover ventilation grid (e.g. cable conduits) by more than 30%!

Installation clearances:

40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently
with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.

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

Do not use the unit without proper earth connection (Protective Earth). Use the pin on the terminal block for earth
connection and not one of the screws on the housing.
Turn power off before working on the power supply. Protect against inadvertent re-powering.
Make sure the wiring is correct by following all local and national codes.
Do not open, modify or repair the unit.
Use caution to prevent any foreign objects from entering into the housing.
Do not use in wet locations or in areas where moisture or condensation can be expected.

Service parts:
The unit does not contain any serviceable parts. The tripping of an internal fuse is caused by an internal defect. If
damage or malfunctioning should occur during operation, immediately turn power off and send unit to factory for
inspection!

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

26. ACCESSORY

ZM1.WALL Wall mounting bracket
This bracket is used to mount Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum

brackets and the black plastic slider of the unit have to be detached, so that the two steel brackets can be mounted.

Fig. 26-1 ZM1.WALL Wall Mounting Bracket Fig. 26-2 Assembled Wall Mounting Bracket

ZM13.SIDE Side mounting bracket
This bracket is used to mount Dimension units sideways with or without utilizing a DIN-Rail. The two aluminum

brackets and the black plastic slider of the unit have to be detached, so that the steel brackets can be mounted.
For sideways DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on

the steel bracket.

Fig. 26-3 ZM13.SIDE Side Mounting Bracket Fig. 26-4 Side Mounting with DIN-rail brackets

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

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27. APPLICATION NOTES

27.1. PEAK CURRENT CAPABILITY

Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current
demand of the pick-up coil is several times higher than the steady state current and usually exceeds the nominal
output current. The same situation applies, when starting a capacitive load.

Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch
circuit, the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the
safe operation of subsequent circuit breakers.

Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following
two examples show typical voltage dips:

Fig. 27-1 Peak load 16A for 50ms, typ. Fig. 27-2 Peak load 32A for 5ms, typ.

24V

16A

Output
Voltage

18.5V

24V

32A

Output
Voltage

16.5V

0A

10ms/DIV

Peak load 16A (resistive) for 50ms

Output voltage dips from 24V to 18.5V.

Output
Current

0A

Peak load 32A (resistive) for 5ms

Output voltage dips from 24V to 16.5V.

1ms/DIV

Output
Current

Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.

27.2. BACK-FEEDING LOADS

Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (E

This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power
supply. It does not matter, whether the power supply is on or off.

The maximum allowed feed back voltage is 35Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 8.

lectro Magnetic Force).

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

27.3. OUTPUT CIRCUIT BREAKERS

Standard miniature circuit breakers (MCBs) can be used for branch protection. Ensure that the MCB is rated for DC
voltage, too. The following tests show which circuit breakers the power supply typically trips.

Circuit breakers have huge tolerances in their tripping behavior. Therefore, these typical tests can only be used as a
recommendation or for comparing two different power supplies. Furthermore, the loop impedance has a major
influence on whether a breaker trips or not. Two tests were performed, representing typical situations:

Test 1: Short circuit with S1 on the power supply end of the cable (loop impedance approx. 20mOhm)

Fig. 27-3 Branch protectors, test circuit 1

Circuit

Power

Supply

AC

DC

Breaker

I

+

S1

-

+

Load

-

Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).

Fig. 27-4 Branch protectors, test circuit 2

Circuit

Power

Supply

AC

DC

Breaker

I

+

-

R

+

S1 Load

-

Example:
Which wire gauge must be used to trip a B-Characteristic circuit breaker with a rating of 6A? The load wire length is
21m.

Answer: A 6A B-Characteristic circuit breaker requires a loop impedance of less than 180mOhm (test results). The wire
length table shows that up to 25.1m wire with a cross section of 2.5mm
than 2.5mm

2

shall be used.

82mOhm

180mOhm
220mOhm

Parameters:
Input voltage: 230Vac, load current: 0A

Tripping time shorter than 5s.
The following circuit breaker tripped during the test:

A- or Z- Characteristic:: equal or smaller 25A
B- Characteristic: equal or smaller 16A
C- Characteristic: equal or smaller 10A

Parameters:
Input voltage: 230Vac, load current: 0A

Tripping time shorter than 5s.
The following circuit breaker tripped during the test:

A- or Z- Characteristic:: ≤ 16A and R< 82mOhm
B- Characteristic: ≤ 6A and R< 180mOhm
C- Characteristic: ≤ 4A and R< 220mOhm

What does this resistance mean in wire length?

2

0.5mm

0.7mm2 1.0mm2 1.5mm2 2.5mm2 4.0mm2

2.3m 3.2m 4.6m 6.9m 11.4m 18.3m

5.0m 7.0m 10.0m 15.0m 25.1m 40.1m

6.1m 8.6m 12.3m 18.4m 30.6m 49.0m

2

are below 180mOhm. A wire not smaller

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

27.4. EXTERNAL INPUT PROTECTION

The unit is tested and approved for branch circuits up to 20A. External protection is only required, if the supplying
branch has an ampacity greater than this. In some countries local regulations might apply. Check also local codes and
local requirements.

If an external fuse is necessary or utilized, a minimum value is required to avoid undesired tripping of the fuse.

B-Characteristic C-Characteristic
Ampacity max.
min.

20A 20A

6A 4A

27.5. PARALLEL USE TO INCREASE OUTPUT POWER

Power supplies can be paralleled to increase the output power.

Fig. 27-5 Schematic for parallel operation

Unit A

AC

Unit B

AC

DC

DC

+

-

+

-

+

Load

-

Instructions for parallel use:

a) Use only power supplies from the same series (Q-Series).
b) Adjust the output voltages of all power supplies to

approximately the same value (±500mV).
Otherwise, the DC-ok signal might not work properly.

c) A fuse (or diode) on the output is only required if more than

three units are connected in parallel.

d) Do not load terminals with more than 25A. Follow wiring

instructions according to chapter 27.7

e) Keep an installation clearance of 15mm (left/right) between

two power supplies and avoid installing the power supplies
on top of each other.

27.6. PARALLEL USE FOR REDUNDANCY

Power supplies can be paralleled for redundancy to gain a higher system availability. Redundant systems require a
certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put two
Q-Series power supplies in parallel. This is called a 1+1 redundancy. In case one power supply unit fails, the other one
is automatically able to support the load current without any interruption. Redundant systems for a higher power
demand are usually built in a N+1 method. E.g. Five power supplies, each rated for 10A are paralleled to build a 40A
redundant system.

Please note: This simple way to build a redundant system does not cover failures such as an internal short circuit in
the secondary side of the power supply. In such a - virtually nearly impossible - case, the defect unit becomes a load
for the other power supplies and the output voltage can not be maintained any more. This can only be avoided by
utilizing decoupling diodes which are included in the decoupling module YR2.DIODE.

Recommendations for building redundant power systems:
a) Use separate input fuses for each power supply.
b) Monitor the individual power supply units. A DC-ok lamp and a DC-ok contact is already included in the units

This feature reports a faulty unit.
c) When possible, connect each power supply to different phases or circuits.
d) It is desirable to set the output voltages of all power supplies to the same value to avoid a false DC-ok signal.

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

27.7. DAISY CHAINING OF OUTPUTS

Daisy chaining (jumping from one power supply output to the next) is allowed as long as the maximum current
through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block.

Fig. 27-6 Daisy chaining of outputs

max 25A!

+ +

- -

Power

Supply

Input

+ +

- -

Power

Supply

Input

+

Load

-

Fig. 27-7 Using distribution terminals

+ +

- -

Power
Supply

L N PE

+ +

- -

Power
Supply

L N PE

Distribution
Terminals

+

Load

-

27.8. SERIES OPERATION

The power supply can be put in series to increase the output voltage.

Fig. 27-8 Schematic for series operation

Unit A

AC

Unit B

AC

DC

DC

+

-

+

-

+

Load

-

Earth

Instructions for use in series:

a) It is possible to connect as many units in series as needed,

providing the sum of the output voltage does not exceed
150Vdc.

b) Voltages with a potential above 60Vdc are not SELV any

more and can be dangerous. Such voltages must be installed

with a protection against touching.
c) For serial operation use power supplies of the same type.
d) Earthing of the output is required when the sum of the

output voltage is above 60Vdc.
e) Keep an installation clearance of 15mm (left/right) between

two power supplies and avoid installing the power supplies

on top of each other.

Avoid return voltage (e.g. from a decelerating motor or

Note:
battery) which is applied to the output terminals.

27.9. INDUCTIVE AND CAPACITIVE LOADS

The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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Q-Series

24V, 8A, SINGLE PHASE INPUT

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27.10. OPERATION ON TWO PHASES

Fig. 27-9 Schematic for two phase operation

L1

L3

L2

max.

+15%

240V

Power Supply

L

Fuse

N

PE

AC

internal

fused

DC

Instructions for two phase operation:
a) A phase to phase connection is allowed as long as the

supplying voltage is below 240V

+15%

.

b) Use a fuse or a circuit breaker to protect the N input. The

N input is internally not protected and is in this case

connected to a hot wire.

Appropriate fuses or circuit breakers are specified in section 27.4
“External Input Protection”.

27.11. USE IN A TIGHTLY SEALED ENCLOSURE

When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than outside. The inside temperature defines the ambient temperature for the power supply.

Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure: Rittal Typ IP66 Box PK 9519 100, plastic, 180x180x165mm

Load: 24V, 6.4A; (=80%) load is placed outside the box
Input: 230Vac
Temperature inside enclosure: 45.1°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 27°C
Temperature rise: 18.1K

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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C

C

C

C

C

Q-Series

24V, 8A, SINGLE PHASE INPUT

QS10.DNET

27.12. MOUNTING ORIENTATIONS

Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous output power or a limitation in the max. allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous
operation can be found below:

Curve A1 Recommended output current.
Curve A2 Max allowed output current (results approx. in half the lifetime expectancy of A1).

Fig. 27-10

Mounting
Orientation A

Standard
Orientation

Fig. 27-11

Mounting
Orientation B
(Upside down)

OUTPUT

Power

Supply

INPUT

INPUT

Supply
Power

OUTPUT

Fig. 27-12

Mounting
Orientation C

(Table-top
mounting)

Fig. 27-13

Mounting
Orientation D

(Horizontal cw)

Supply

INPUT

OUTPUT

Power

Fig. 27-14

Mounting
Orientation E

(Horizontal ccw)

OUTPUT

Power

INPUT

Supply

Output Current

8A

6

4

2

0

Ambient Temperature

10 20 30 40

Output Current

8A

6

4

2

0

Ambient Temperature

10 20 30 40

Output Current

8A

6

4

2

0

Ambient Temperature

10 20 30 40

Output Current

8A

6

4

2

0

Ambient Temperature

10 20 30 40

Output Current

8A

6

4

2

0

Ambient Temperature

10 20 30 40

A

1

60°

50

A

2

A

50

A

2

A

1

50

A

2

A

1

50

A

2

A

50

1

60°

60°

60°

1

60°

Oct. 2006 / Rev. 1.0 DS-QS10.DNET-EN / All parameters are specified at 24V, 8A, 230Vac and 25°C ambient unless otherwise noted.

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