Allen-Bradley 1606-XLB240E Owners Manual

Reference Manual

Original Instructions

Basic Power Supply 10 A

Catalog Number 1606-XLB240E

Important User Information

Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

IMPORTANT Identifies information that is critical for successful application and understanding of the product.

Labels may also be on or inside the equipment to provide specific precautions.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Table of Contents

Basic Power Supply 10 A

Topic Page Topic Page

Additional Resources 3 Hold-Up Time 11

Terminology and Abbreviations 4 DC OK Relay Contact 11

Product Overview 5 Efficiency and Power Loss 12

Front Side and User Elements 6 Lifetime Expectancy and Mean Time Between

Failur e (MTB F)

Protection Features 6 Functional Diagram 13

Safety Features 7 EMC 14

Installation Notes 7 Application Notes 15

Terminals and Wiring 7 Specifications 15

Installation Notes 7 Environment 19

Input 8 Dielectric Strength 20

DC-Input 9 Standards Compliance and Certifications 22

Input Inrush Current 9 Approximate Dimensions and Weight 23

Output 10

13

Additional Resources

These documents contain additional information concerning related products
from Rockwell Automation.

Resource Description

Switched Mode Power Supply Technical Data, publication

1606-TD002

Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1

Product Certifications website, http://

www.rockwellautomation.com/global/certification/
overview.page

Provides specifications and approximate dimensions
for full line of switched mode power supplies.

Provides general guidelines for installing a Rockwell
Automation industrial system.

Provides declarations of conformity, certificates, and
other certification details.

You can view or download publications at

http://www.rockwellautomation.com/global/literature-library/overview.page

To order paper copies of technical documentation, contact your local
Allen-Bradley distributor or Rockwell Automation sales representative.

.

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 3

Basic Power Supply 10 A

Terminology and Abbreviations

Term Definition

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

tolerances included.

50 Hz vs. 60 Hz As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50 Hz

mains frequency. AC 120V parameters are valid for 60 Hz mains frequency.

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

voltage with standard tolerances included. for example: DC 12V describes a 12V battery,
whether it is full (13.7V) or flat (10V)

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

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

PELV Protection by extra-low voltage

SELV Safety by extra-low voltage

4 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Basic Power Supply 10 A

Product Overview

1606-XLB Basic Power Supplies are
compact, industrial grade power supplies that
focus on the essential features needed in
industrial applications.

The mechanically robust housing is made of
a high-grade, reinforced molded material,
which permits the units to be used in
ambient temperatures up to 70 °C (158 °F).

This power supply features a wide input
voltage range, which makes it suitable for
global use.

The addition of a DC-OK signal makes the power supply ideal for many
industry applications such as: process, automation, and many other critical
applications where preventive function monitoring can help to avoid long
downtimes.

The 1606-XLB240E power supply offers these features:

• Wide input range, AC 100…240V

•Active PFC

• Cost optimized without compromising quality or reliability.

• Small width of only 49 mm (1.93 in.)

• Efficiency up to 95.2%

• Full power between -25…+55 °C (-13…+131 °F)

•DC-OK relay contact

•1-year warranty

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 5

Basic Power Supply 10 A

Front Side and User Elements

Figure 1 - Front Side of DC-UPS

Letter Description

A Input terminals - (screw terminals)

N, L - Line input
PE - Protective earth input

B Output terminals - (screw terminals, two pins per pole)

+ Positive output
– Negative (return) output

C Output voltage potentiometer -

Guaranteed adjustment range: 24…28V
Fac tory set: 24.1V

D DC-OK status indicator (green) On, when the output voltage is >18V

E DC-OK Relay Contact (push-in terminals)

Protection Features

Attribute 1606-XLB240E

Output protection Electronically protected against overload, no-load, and short circuits

Output overvoltage protection typ 30.5V DC

max 32 V DC

Degree of protection IP 20 EN/IEC 60529 Caution: For use in a

Over-temperature protection yes

Input transient protection MOV (Metal Oxide Varistor)

Internal input fuse Included not user replaceable

(1) If there is a protection event, audible noise can occur.

In case of an internal power supply
anomaly, a redundant circuit limits the
maximum output voltage. In such a case,
the output shuts down and stays down
until the input voltage is turned off and on
again for at least 1 minute or until the
green status indicator went off.

controlled environment according to
CSA 22.2 No 107.1-01.

Output shut-down with automatic restart

(1)

6 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Safety Features

Basic Power Supply 10 A

Attribute 1606-XLB240E

Input/output
separation

Class of protection I PE (Protective Earth) connection required

Isolation resistance > 5 MOhm input to output, 500V DC

Tou ch curr en t
(leakage current)

SELV IEC/EN 60950-1

PELV
double or reinforced insulat ion

typ 0.30 mA/0.79 mA 100V AC, 50 Hz, TN-,TT-mains/IT-mains

typ 0.42 mA/1.1 mA 120V AC, 60 Hz, TN-,TT-mains/IT-mains

typ 0.67 mA/1.7 mA 230V AC, 50 Hz, TN-,TT-mains/IT-mains

< 0.37 mA/0.94 mA 110V AC, 50 Hz, TN-,TT-mains/IT-mains

< 0.54 mA/1.33 mA 132V AC, 60 Hz, TN-,TT-mains/IT-mains

< 0.88 mA/2.18 mA 264V AC, 50 Hz, TN-,TT-mains/IT-mains

IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41

Installation Notes

Terminals and Wiring

• Use appropriate copper cables that are designed for minimum operating
temperatures of:

– 75 °C (167 °F) for ambient up to 55 °C (131 °F) minimum.
– 90 °C (194 °F) for ambient up to 70 °C (158 °F) minimum.

• Follow national installation codes and installation regulations.

• Verify that all strands of a stranded wire enter the terminal connection.

• Do not use the power supply without a PE connection.

• Securely tighten unused terminal compartments.

• Ferrules are allowed.

The terminals are IP20 fingersafe constructed and suitable for field- and
factory wiring.

Attribute Input and Output DC-OK Signal

Terminal type Screw terminals Push-in terminals

Solid wire, max 6 mm

Stranded wire, max 4 mm

American Wire Gauge AWG 20-10 AWG 28-16

Wire diameter, max 2.8 mm (including ferrules) 1.6 mm (including ferrules)

Wire stripping length 7 mm (0.28 in.) 7mm (0.28 in.)

Screwdriver 3.5 mm slotted or cross-head No 2 Not required

Recommended tightening torque 1 N•m, 9 lb•in Not applicable

2

2

1.5 mm

1.5 mm

2

2

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 7

Basic Power Supply 10 A

Turn-on

90V

Rated

input range

max.

500ms

V

IN

P

OUT

300Vac264V

Shut-down

Start-up

delay

Rise

Time

Overshoot

- 5%

Output
Voltage

Input
Voltage

10A01234567

0

0.5

1.0

1.5

2.0

2.5

3A

Input Current, typ.

89

Output Current

a) 100Vac
b) 120Vac
c) 230Vac

c

a

b

10A234 6 8

0.70

0.75

579

0.80

0.85

0.90

0.95

1.00

Power Factor, typ.

1

Output Current

b

a

a) 100Vac
b) 120Vac
c) 230Vac

c

Input

Attribute 1606-XLB240E

AC input nom 100…240V AC Auto-select, suitable for TN-, TT- and IT mains networks

AC input range min 90…264V AC continuous operation

Allowed voltage L or N to earth max 300V AC continuous, IEC 62103

Input frequency nom 50…60 Hz ±6%

Turn-on voltage typ 81V AC at 24V 10 A, steady-state value, see Figure 2

Shut-down voltage typ 63V AC/71V AC at no load/nominal load, steady-state value, see Figure 2

External input protection See recommendations in External Input Protection on page 16.

Attribute AC 100V AC 120V AC 230V

Input current typ 2.60 A 2.17 A 1.18 A at 24V, 10 A, see Figure 3

Power factor

Crest factor

Start-up delay typ 400 ms 260 ms 200 ms see Figure 4

Rise time typ 60 ms at 24V, 10 A const. current load, 0 mF load capacitance, see Figure 4

Turn-on overshoot max 200 mV see Figure 4

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

(2) The crest factor is the mathematical ratio of the peak value to the T ms value of the input current waveform.

min 264…300V AC < 500 ms

(1)

(2)

typ 0.99 0.98 0.93 at 24V, 10 A, see Figure 5

typ 1.6 1.7 2.0 at 24V, 10 A

typ 230 ms at 24V, 10 A const. current load, 5 mF load capacitance, see Figure 4

Figure 2 - Input Voltage Range, typ Figure 4 - Turn-on Behavior, Definitions

Figure 3 - Input Current vs. Output Load at 24V Figure 5 - Power Factor vs. Output Load

8 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Basic Power Supply 10 A

20ms/DIV

Input current 5A/DIV

Input voltage 500V/DIV

Output voltage 20V/DIV

Ipeak = 16A

20ms/DIV

Input current 5A/DIV

Input voltage 500V/DIV

Output voltage 20V/DIV

Ipeak = 16A

20ms/DIV

Input current 5A/DIV

Input voltage 500V/DIV

Output voltage 20V/DIV

Ipeak = 16A

DC-Input

Input Inrush Current

Do not operate the power supply with DC-input voltage.

A NTC inrush limiter limits the input inrush current after turn-on of the
input voltage.

Attribute AC 100V AC 120V AC 230V Notes

Inrush
current

Inrush energy typ 11.5 A peak 14 A peak 26 A peak 25 °C (77 °F) ambient, cold

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

Figure 6 - Input Inrush Current, Typical Behavior,
230V AC Input, 24V 10 A Output, 25°C (77 °F) Ambient

max 14.5 A peak 17 A peak 32 A peak 40 °C (104 °F) ambient,

(1)

typ 7 A peak 8.5 A peak 16 A peak 40 °C (104 °F) ambient,

max 0.2 A

2

s0.3 A

2

s1 A

2

s 40 °C (158 °F) ambient,

cold start

cold start

start

cold start

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 9

Basic Power Supply 10 A

Output Voltage

0

0 12.5

4

8

12

28V

16

20

24

15A7.52.5 5 10

Adjustment

Range

Output Current

Continuous

current

Hiccup

PLUS

mode

Output
Current

0

13.5A

7s 7s

7s

1s 1s

3s

t

Short -circuit

Normal

operation

Normal

operation

First
pulse: 3s

Output

Attribute 1606-XLB240E Notes

Output voltage nom DC 24V

Adjustment range 24…28V guaranteed

(1)

30V

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

Line regulation max 5 mV 90…264V AC

Load regulation max 100 mV static value, 0A .. 10A, see Figure 7

Ripple and noise voltage max 100 mVpp 20 hz to 20 MHz, 50 Ohm

Output current nom 10 A at 24V, below +55 °C (131 ° F) ambient temperature

6.25 A at 28V, below +55 °C (131 ° F) ambient temperature

8.6 A at 24V, at +70 °C (158 ° F) ambient temperature

5.4 A at 28V, at +70 °C (158 ° F) ambient temperature

Output power nom 240 W ambient temperature < 55 ° C (131 ° F)

150 W ambient temperature < 70 °C (158 ° F)

Overload behavior continuous current output voltage > 13V DC, see Figure 7

PLUS

Hiccup

Short circuit current min 11 A

mode output voltage < 13V DC, see Fi gure 7

(2)

max 15 A load impedance 50mOhm, see Figure 7

typ 4.8 A

(3)

Output capacitance typ 2 850 μF included inside the power supply

(1) This is the maximum output voltage that can occur at the clockwise end position of the potentiometer due to tolerances. It is not a guaranteed value that can be achieved. The typical value is

about 28.5V.

(2) Discharge current of output capacitors is not included.

(3) Discharge current of output capacitors is not included.

at clockwise end position of potentiometer

load impedance 50mOhm, see Figure 7

average (R.M.S.) current, load impedance 50 mOhm, see

Figure 7

Figure 7 - Output Voltage vs. Output Current, typ Figure 8 - Short circuit (50 mOhm) on output, Hiccup

10 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Hold-Up Time

0

10

20

30

40

80ms

90 120 230Vac

Input Voltage

50

60

Hold-up Time

70

a

b

c
d

a) 24V 5A typ.
b) 24V 5A min.

c) 24V 10A typ.
d) 24V 10A min.

- 5%

Hold-up Time

Zero Transition

Output
Voltage

Input
Voltage

21.8V

open

Output Voltage

closed

Type AC 100V AC 120V AC 230V Notes

24V, 5 A typ 65 ms 65 ms 65 ms See Figure 9

min 53 ms 53 ms 53 ms

24V, 10 A typ 32 ms 32 ms 32 ms

min 26 ms 26 ms 26 ms

Figure 9 - Hold-up Time vs. Input Voltage Figure 10 - Shut-down Behavior, Definitions

Basic Power Supply 10 A

DC OK Relay Contact

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 that is
connected in parallel to the power supply output such as a redundant
application.

Attribute 1606-XLB240E

Contact closes As soon as the output voltage reaches 21.8V

Contact opens As soon as the output voltage dips below 21.7V

Contact ratings max 60V DC, 0.3 A; 30V DC, 1 A; 30V AC, 0.5 A resistive load

min 1 mA at 5V DC min required load

Isolation voltage See Dielectric Strength

Figure 11 - DC-OK Relay Contact Behavior

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 11

on page 21

Basic Power Supply 10 A

Efciency

2

92

94

95

90

96%

10A4786

Output Current

953

93

91

(

a

)

(

c

)

(a) 100Vac
(b) 120Vac
(c) 230Vac

(

b

)

Efciency

120 180 230 264Vac

90

91

92

93

Input Voltage

94

95

96%

100

Power Losses

120 180 230 264Vac

8

10

12

14

Input Voltage

16

18

20W

100

Efficiency and Power Loss

Attribute AC 100V AC 120V AC 230V Notes

Efficiency typ 93.2% 94.0 % 95.2 % at 24V, 10 A

Average

(1)

efficiency

Power losses typ 4.0 W 4.0 W 3.4 W at 24V, 0A

(1) The average efficiency is an assumption for a typical ap plication where the power supply is loaded with 25% of the nominal load

for 25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time
and with 100% of the nominal load for the rest of the time.

Figure 12 - Efficiency vs. Output Current, typ Figure 14 - Power Losses vs. Output Current at 24V, typ

typ 92.7% 93.1 % 93.9 % 25% at 2.5 A

25% at 5 A
25% at 7.5 A
25% at 10 A

typ 9.0 W 8.5 W 7.5 W at 24V, 5 A

typ 17.5 W 15.3 W 12.1 W at 24V, 10 A

Power Losses

24W

(a) 100Vac

21

(b) 120Vac

18

(c) 230Vac

12

9
6
3
0

024 8910A

Output Current

6157

)

(

a

(

)

b

)

(

c

12 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Figure 13 - Efficiency vs. Input Voltage at 24V, 10 A, typ Figure 15 - Power Losses vs. Input Voltage at 24V, 10 A

Lifetime Expectancy and

+

+

-

-

Output

Over-

Voltage

Protection

PFC

Converter

Output

Voltage

Regulator

Power

Converter

Output

Filter

Temper-

ature

Shut-

down

Input Fuse
Input Filter
Input Rectier
Inrush Current Limiter

V

OUT

L

N

DC-ok
Contact

DC-ok
LED

DC-ok
Relay

Mean Time Between Failure
(MTBF)

Basic Power Supply 10 A

Attribute AC 100V AC 120V AC 230V Notes

Lifetime expectancy

(1)

89 000 h 93 000 h 103 000 h at 24V, 5 A and 40 °C (158 °F)

252 000 h 262 000 h 291 000 h at 24V, 5 A and 25 °C (77 °F)

47 000 h 55 000 h 74 000 h at 24V, 10 A and 40 °C (158 °F)

133 000 h 156 000 h 209 000 h at 24V, 10 A and 25 °C (77 °F)

MTBF

SN 29500,

(2)

IEC 61709

pending at 24V, 10 A and 40 °C (104 °F)

at 24V, 10 A and 25 °C (77 °F)

MIL HDBK 217 F at 24V, 10 A and 40 °C (104 °F) ; Ground

Benign GB40

at 24V, 10 A and 25 °C (77 °F) ; Ground
Benign GB25

at 24V, 10 A and 40 °C (104 °F) ; Ground
Fixed GF40

at 24V, 10 A and 25 °C (77 °F) ; Ground
Fixed GF25

(1) The Lifetime expectancy that is shown in the table indicates the minimum operating hours (service life) and is determined by the

lifetime expectancy of the built-in electrolytic capacitors. Lifetime expec tancy is specified in operational hours and is calculated
according to the capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum
life of up to 15 years (131 400 h). Any number exceeding this value is a calculated theoretical lifetime that can be used to compare
devices.

(2) 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 a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of for example, 1 000 000 h means
that statistically one unit fails every 100 hours if 10 000 units are installed in the field. However, it cannot be determined if the
failed unit has been running for 50 000 h or only for 100 h.

Functional Diagram

Figure 16 - Functional Diagram

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 13

Basic Power Supply 10 A

EMC

EMC Immunity According to Generic Standards EN 61000-6-1 and EN 61000-6-2 Criterion

Electrostatic
discharge

Electromagnetic RF

EN 61000-4-2 contact discharge

air discharge

8kV
8kV

Criterion A
Criterion A

EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A

field

Fast transients
(Burst)

EN 61000-4-4 input lines

output lines
DC-OK signal

4 kV
2 kV
2 kV

Criterion A
Criterion A
Criterion A

(coupling clamp)

Surge voltage on
input

Surge voltage on
output

Surge voltage on

EN 61000-4-5 L ->N

L ->PE, N ->PE

EN 61000-4-5 + ->-

+/- ->PE

2 kV
4 kV

500V
1 kV

Criterion A
Criterion A

Criterion A
Criterion A

EN 61000-4-5 DC-OK signal… PE 1 kV Criterion A

DC-OK

Conduc ted

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

disturbance

Mains voltage dips EN 61000-4-11 0% of 120V AC

40% of 120V AC
40% of 120V AC
70% of 120V AC
0% of 200V AC
40% of 200V AC
70% of 200V AC

Vol tag e

EN 61000-4-11 0% of 220V AC (=0V) 5000 ms Criterion C

0V AC, 20 ms
48V AC, 200 ms
48V AC, 500 ms
84V AC, 20 ms
0V AC, 20 ms
80V AC, 200 ms
140V AC, 500 ms

Criterion A
Criterion C >7 A
Criterion A <7 A
Criterion A
Criterion A
Criterion C
Criterion A

interruptions

Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard

80% of 120V AC (96V AC)
70% of 120V AC (84V AC)
50% of 120V AC (60V AC)
50% of 120V AC (60V AC)

1000ms
500ms
200ms
200ms

Criterion A
Criterion A
Criterion C >8 A
Criterion A <8 A

Powerful transients VDE 0160 over entire load range 750V, 0.3ms Criterion A

(1) Criterion A: Power supply shows normal operation behavior withing the defined limits.

Criterion C: Temporary loss of function is possible. Power supply can shut down and restart by itself. No damage or hazard for the
power supply occurs.

(1)

EMC Emission According to Generic Standards: EN 61000-6-3, EN 610000-6-4

Conducted emission input lines EN 55011, EN 55022

FCC Part 15
CISPR 11, CISPR 22

Conducted emission output

(1)

lines

IEC/CISPR 16-1-2 , IEC/CISPR 16-2-1 limits for DC power port according

Radiated emission EN 55011, EN 55022 Class B

Harmonic input current EN 61000-3-2 Fulfilled for class A equipment

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.

(1) For information only, not mandatory for EN 61000-6-3.

(2) Tested with constant current loads, non-pulsing.

14 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Class B

EN 61000-6-3 not fulfilled

(2)

Basic Power Supply 10 A

10ms/DIV

Output
Voltage

Output
Current

24V

0A

20A

14.9V

20A Peak load (resistive) for 50ms
Output voltage dips from 24V to 14.9V.

Application Notes

Peak Current Capability

The unit can deliver peak currents (up to several milliseconds) which are
higher than the specified short-term currents.

This helps to start current demanding loads. 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.

The peak current capability also delivers the safe operation of subsequent
circuit breakers of load circuits. The load branches are often individually
protected with circuit breakers or fuses. If there is a short or an overload in one
branch circuit, the fuse or circuit breaker need a certain amount of overcurrent
to open in a timely manner. This avoids voltage loss in adjacent circuits.

The extra current (peak current) is supplied by the power converter and the
built-in large sized output capacitors of the power supply. The capacitors get
discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:

Figure 17 - Peak Load with 2x the Nominal Current for 50 ms, typ Figure 18 - Peak Load with 5x the Nominal Current for 5 ms, typ

24V

Output

50A

0A

1ms/DIV

50A Peak load (resistive) for 5ms
Output voltage dips from 24V to 3.7V.

Peak Current Capability Voltage Dip Peak Load

Peak current voltage dips typ 24…14.9V at 20 A for 50 ms, resistive load

typ 24…7.1V at 50 A for 2 ms, resistive load

typ 24…3.7V at 50 A for 5 ms, resistive load

Voltage

3.7V

Output
Current

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 15

Basic Power Supply 10 A

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. (Electro Magnetic Force).

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 35V DC. The absorbing energy
can be calculated according to the built-in large sized output capacitor that is
specified in Output

on page 10.

External Input Protection

The unit is tested and approved for branch circuits up to 30 A (UL) and 32 A
(IEC). An external protection is only required if the supplying branch has an
ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations can apply.

If an external fuse is necessary or utilized, minimum requirements need to be
considered to avoid nuisance tripping of the circuit breaker. A minimum value
of 10A B-characteristic or 6A C-characteristic breaker should be used.

Parallel Use to Increase Output Power

Do not use the power supply in parallel to increase the output power.

Parallel Use for Redundancy

Power supplies can be paralleled for redundancy to gain 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 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.

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 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 that are included in the redundancy
module.

16 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Basic Power Supply 10 A

Unit A

AC

DC

Unit B

AC

DC

-

+

-

+

Load

+

-

Earth
(see notes)

Recommendations for building redundant power systems:

– Use the DC-OK signal contact to monitor the individual power

supply units.
– Use separate input fuses for each power supply.
– Use separate mains systems for each power supply whenever it is

possible.
– It is desirable to set the output voltages of all units to the same value

(± 100 mV) or leave it at the factory setting.

Series Operation

Power supplies of the same type can be connected in series for higher output
voltages. It is possible to connect as many units in series as needed, providing
the sum of the output voltage does not exceed 150V DC. Voltages with a
potential above 60V DC are not SELV any more and can be dangerous. Such
voltages must be installed with a protection against touching.

Earthing of the output is required when the sum of the output voltage is above
60V DC.

Avoid return voltage (for example, from a decelerating motor or battery) which
is applied to the output terminals.

Keep an installation clearance of 15 mm (0.59 in.) (left/right) between two
power supplies and avoid installing the power supplies on top of each other.

Pay attention that leakage current, EMI, inrush current, harmonics increase
when using multiple power supplies.

Figure 19 - Series Operation

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 17

Basic Power Supply 10 A

Inductive and Capacitive Loads

The unit is designed to supply any kind of loads, including capacitive and
inductive loads. If extreme large capacitors, such as EDLCs (electric double
layer capacitors or “UltraCaps”) with a capacitance larger than 2.0 F are
connected to the output, the unit might charge the capacitor in the
HiccupPLUS mode, see Output

on page 10.

Charging of Batteries

Do not use the power supply to charge batteries.

Operation on Two Phases

The power supply can also be used on two-phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage is

+10%

below 240V

.

Figure 20 - Operation on Two Phases

Power Supply

L

Fuse

N

PE

AC

internal

fuse

DC

L3

L1

max.

+10%

240V

L2

Use in a Tightly Sealed Enclosure

When the power supply is installed in a tightly sealed enclosure, the
temperature inside the enclosure is higher than outside. In such situations, the
inside temperature defines the ambient temperature for the power supply.

The following measurement results can be used as a reference to estimate the
temperature rise inside the enclosure.

The power supply is placed in the middle of the box; no other heat producing
items are inside the box.

•Enclosure
– Rittal Type IP66 Box PK 9516 100
–Plastic
– 110 x 180 x 165 mm (4.33 x 7.09 x 6.50 in.)

•Input
– 230V AC

18 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Specifications

Basic Power Supply 10 A

Attribute Case A Case B

(1)

Load

Temperature inside the box

Temperature outside the box 24.9 °C (76.8 °F) 24.9 °C (76.8 °F)

Temperature rise 23.7 K 18.8 K

(1) Load is placed outside the box.

(2) In the middle of the right side of the power supply with a distance of 1 cm (0.39 in.)

Attribute 1606-XLB240E Notes

Output Voltage 24V DC

Adjustment range 24…28V DC

Output Current 10 A at 24V, amb <55°C (131°F)

Output power 240 W ambient <55°C (131°F)

Output ripple < 100 mVpp 20 Hz…20 MHz

AC Input voltage 100…240V AC ±10%

Mains frequency 50…60Hz ±6%

AC Input current 2.17 A/1.18 A at 120/230V AC

Power factor 0.98/0.93 at 120/230V AC

AC Inrush current 14A/26A peak at 120/230V AC, 40°C (104 °F)

Efficiency 94.0%/95.2% at 120/230V AC

Losses 15.3W/12.1W at 120/230V AC

Temperature range -25 …+70 °C (-13…+158 °F) operational

Derating 6W/°C 55…70 °C (131…158 °F)

Hold-up time typ 32 ms/ 32 ms at 120/230V AC

Dimensions 49 x 124 x 124 mm ( W x H x D

Weight 540 g/1.2 lb

(2)

6.25 A at 24V, amb <70°C (158 °F)

8.6 A at 28V, amb <55°C (131°F)

5.4 A at 28V, amb <70°C (158 °F)

150 W ambient <70°C (158 °F)

24V, 10 A 24V, 8 A (=80%)

48.6 °C (199.4 °F) 43.7 °C (110.1 °F)

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 19

Basic Power Supply 10 A

0

-10 0 +20 +40

+70°C

2.5A

5.0A

7.5A

10A

+55

Allowable Output Current at 24V

6.3A

Ambient Temperature

-25

Allowed Output
Current at 24V

0

0 2000 4000

6000m

2A

4A

6A

8A

10A

12A

Altitude

A

.

.

.

T

a

m

b

<

5

5

°

C

B

.

.

.

T

a

m

b

<

4

5

°

C

C

.

.

.

T

a

m

b

<

3

5

°

C

A

B

C

Environment

Attribute 1606-XLB240E Notes

Operation al temperature

(1)

-25… +70 °C (14...158 °F) reduce output power, see Figure 21.

Storage temperature -40… +85°C (-40…185 °F) for storage and transportation

Output derating 6W/°C 50°…70 °C (131…158 °F)

(2)

Humidity

Vibration sinusoidal

5...95% r.h. IEC 60068-2-30

(3)

2…17.8 Hz: ±1.6 mm (0.06 in.);

IEC 60068-2-6

17.8…500Hz: 2 g 2 hours/axis

(4)

Shock

30 g 6ms, 20 g 111ms

IEC 60068-2-27

3 bumps/direction, 18 bumps in total

Altitude 0…2000 m (0…6 560 ft) without any restrictions

2000…6000 m (6 560… 20,000 ft) reduce output power or ambient temperature,

see Figure 22. IEC 62103, EN 50178,
overvoltage category II

Altitude derating 15 W/1000 m or 5 °C/1000 m > 2000 m (6500 ft), see Figure 22 .

Overvoltage category III IEC 62103, EN 50178, altitudes up to 2000 m

II altitudes from 2000 m to 6000 m

Degree of pollution 2 IEC 62103, EN 50178, not conductive

LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for

use in paint shops.

(1) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2 cm (0.79 in.)

below the unit.
(2) Do not energize while condensation is present.
(3) Tested on a DIN Rail with a thickness of 1.3 mm (0.05 in.)
(4) Tested on a DIN Rail with a thickness of 1.3 mm (0.05 in.)

Figure 21 - Output Current vs. Ambient Temperature Figure 22 - Output Current vs. Altitude

20 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Basic Power Supply 10 A

Dielectric Strength

The output voltage is floating and has no ohmic connection to the ground.
Type and factory tests are conducted by the manufacturer. Field tests can be
conducted in the field using the appropriate test equipment, which applies the
voltage with a slow ramp (2 s up and 2 s down). Connect all input-terminals
together and all output poles before conducting the test. When testing, set the
cutoff current settings to the value in the following table.

ABCD

Type test 60 s 2500V AC 3000V AC 1000V AC 500V AC

Factory test 5 s 2500V AC 2500V AC 500V AC 500V AC

Field test 5 s 2000V AC 2000V AC 500V AC 500V AC

Cutoff current setting > 15 mA > 15 mA > 20 mA > 1 mA

Figure 23 - Dielectric Strength

Input DC-ok

L

N

Earth, PE

*)

B

B

C

DA

Output

+

-

To meet 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 cannot be switched off when
unnoticed earth faults occur.

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 21

Basic Power Supply 10 A

Standards Compliance and Certifications

EC Declaration of Conformity The CE Marking indicates conformance with the low voltage and EMC

UL 508 Listed for use as Industrial Control Equipment ;U.S.A. (UL 508) and Canada

UL 60950-1 Recognized for use as Information Technology Equipment,

RCM Declaration of Conformity C-tick is for products intended for sale and use within the Australian

EAC EAC is for products intended for sale and use within the Russian market.

Directive. EN 60950-1, EN 61000-6

(C22.2 No. 14-15); File: E56639

U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950); File: E 168663.

market.

22 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

Approximate Dimensions

49

(1.93)

125

(4.92)

124

(4.88)

116.65
(4.59)

and Weight

Attribute Value

Width 49 mm (1.93 in.)

Height 124 mm (4.88 in.)

Depth

Weight 540 g (1.21 lb)

DIN rail Use 35 mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15 mm (0.30 or 0.59 in.).

Plastic Material of
Housing

Installation Clearances Keep the following installation clearances: 40 mm (1.57 in.) on top, 20 mm (0.79 in.) on the bottom,

(1) The DIN rail height must be added to the unit depth to calculate the total required installation depth.

Basic Power Supply 10 A

(1)

124 mm (4.88 in.)

Flame ret ardant Polycarbo nate (PC) - UL9 4-V0 Vicat soft ening temperature specified with 149 °C (300 °F )
according to ASTM D1525

5 mm (0.20 in.) on the left and right sides are recommended when the device is loaded permanently with
more than 50 % of the rated power. Increase thi s clearance to 15 mm (0. 59 in.) in case the adjacent device
is a heat source (for example, another power supply).

Dimensions are in mm (in.).

Figure 24 - Front View

Figure 25 - Side View

Rockwell Automation Publication 1606-RM056A-EN-P - December 2016 23

Basic Power Supply 10 A

Notes:

24 Rockwell Automation Publication 1606-RM056A-EN-P - December 2016

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