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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
1606-XLE240EP
24V,10A Single Phase Input
POWER SUPPLY
¾ Ultra-small size
¾ Extra-low inrush current
¾ Superior efficiency and temperature rating
¾ DC-OK and overload LED
1. GENERAL DESCRIPTION
The 1606-XLE power supplies are cost optimized power supplies without compromising quality , reliability and performance. The 1606-X LE240EP is part
of the XLE power supply family, existing alongside the high featured XLS family.
The 1606-XLE includes all the essential basic functions and the devices have a power reserve of 20%. This extra current may even be used
continuously at temperatures up to +45°C. Th e most important features are the small size, the high efficie ncy and the wide temperature range. The
specialty of the 1606-XLE240EP is the PFC filter with which the harmonic standard EN61000-3-2 is fulfilled.
The Auto-select input makes worldwide installation and usage very simple. Defects or system failures caused by wrongly set switches can not occur.
2. SPECIFICATION QUICK REFERENCE
Output voltage DC 24V
Adjustment range 24 - 28V
Output current 10 – 8.6A ambient <60°C
Output power 240W ambient <60°C
Output ripple < 50mVpp 20Hz to 20MHz
Input voltage AC 100-120 / 200-
240V
Line frequency 50-60Hz ±6%
AC Input current typ. 3.73 / 2.0A at 120 / 230Vac
Power factor typ. 0.59 / 0.57 at 120 / 230Vac
AC Inrush current typ. 3A peak
DC Input not allowed
Efficiency typ. 91.0 / 91.2% at 120 / 230Vac
Losses typ. 23.7 / 23.2W at 120 / 230Vac
Temperature range -25°C to +70°C operational
Derating 6W/°C +60 to +70°C
Hold-up time typ. 46 / 42ms at 120 / 230Vac
Dimensions 60x124x117mm WxHxD
Auto-select Input
3. AGENCY APPROVALS
IND. CONT. EQ.
UL 508
EMC, LVD
4. RELATED PRODUCTS
1606-XLB Wall mount bracket
1606-XLSRED Redundancy Module
1606-XLBUFFER Buffer unit
UL 60950-1
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
INDEX PAGE INDEX PAGE
1. General Description................................................................1
2. Specification Quick Reference...............................................1
3. Agency Approvals...................................................................1
4. Related Products....................................................................1
5. AC-Input..................................................................................3
6. Input Inrush Current................................................................4
7. Hold-up Time..........................................................................4
8. Output.....................................................................................5
9. Efficiency and Power Losses..................................................6
10. Functional Diagram................................................................7
11. Reliability................................................................................7
12. Product Face Label ................................................................8
13. Terminals and Wiring..............................................................8
14. EMC........................................................................................9
15. Environment .........................................................................10
16. Protection Features..............................................................10
17. Safety....................................................................................11
18. Dielectric Strength................................................................11
19. Approvals..............................................................................12
20. Fulfilled Standards................................................................12
21. Used Substances..................................................................12
22. Physical Dimensions and Weight .........................................13
23. Installation and Operation Instructions .................................13
24. Accessories...........................................................................14
25. Application Notes..................................................................15
25.1. Peak Current Capability ...........................................15
25.2. Charging of Batteries................................................15
25.3. Back-feeding Loads..................................................16
25.4. Output Circuit Breakers............................................16
25.5. Inductive and Capacitive Loads...............................17
25.6. Series Operation ......................................................17
25.7. Parallel Use to Increase Output Power....................17
25.8. Parallel Use for 1+1 Redundancy............................17
25.9. External Input Protection..........................................18
25.10. Operation on Two Phases........................................18
25.11. Use in a Tightly Sealed Enclosure ...........................18
25.12. Mounting Orientations..............................................19
INTENDED USE
Those responsible for the applicati on and use of the products must satisfy themselves th at all necessary steps have b een taken to assure that each
application and use meets all performance and safety requirements, including and applicable laws, regulation , codes, and standards.
TERMINOLOGY AND ABREVIATIONS
PE and
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
230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional tolerances included.
PELV Protective Extra Low Voltage
SELV Safety Extra Low Voltage
symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol
±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.
.
DISCLAIMER
The information presented in this document is believed to be accurate and reliable and may change without notice.
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Rockwell Automation
A
1606-XLE240EP 24V, 10A; Single Phase Input
5. AC-INPUT
AC input
AC input range
nom. AC 100-120V / 200-
240V
90-132Vac 100-120V range, continuous operation
180-264Vac 200-240V range, continuous operation
Input frequency
85-9 0Vac Short term or with output derating
264-300Vac < 0.5s
nom. 50 – 60Hz ±6%
AC 100V AC 120V AC 230V
Input current
typ. 4.34A 3.73A 2.0A at 24V, 10A see Fig. 5-3
Power factor * typ. 0.61 0.59 0.57 at 24V, 10A see Fig. 5-1
Crest factor ** typ. 2.61 2.83 3.1 at 24V, 10A
Start-up delay
typ. 700ms 800ms 850ms see Fig. 5-2
Rise time typ. 35ms 35ms 35ms 0mF, 24V, 10A, see Fig. 5-2
Turn-on overshoot
typ. 75ms 75ms 75ms 10mF, 24V, 10A, see Fig. 5-2
max. 100mV 100mV 100mV see Fig. 5-2
Turn-on voltage typ. 82Vac 82Vac N / A steady-state value, see Fig. 5-1
Shut-down voltage typ. 75Vac 75Vac N / A steady-state value, see Fig. 5-1
* 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 the RMS value of the input current waveform
Fig. 5-1 Input voltage range Fig. 5-2 Turn-on behavior, definitions
P
OUT
Rated input ranges
auto-select input, see Fig. 5-1
Intput
Vol tag e
132V
no
harm
from
132 t o
180V
Output Current
Ra n g e
200-
240V
264Vac180V
10 11
V
IN
c
a
V
0
0
1
c
a
V
0
2
1
c
a
V
0
3
2
12A
Fig. 5-3 Input current vs. output load Fig. 5-4 Power Factor vs. output load
Input
Current, typ.
6A
5
4
3
2
1
0
2
Ra n g e
100-
120V
Tur n-o n
Shut-down
90V
3456789
Output
Vol tag e
Power Fact or, t yp.
0.65
0.6
0.55
0.5
0.45
0.4
0.35
2
- 5%
St a r t - u p
delay
5
34 6
Ri se
Ti me
7
100Vac
120Vac
230Vac
Output Current
8
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Overshoot
11
12
10
9
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
6. INPUT INRUSH CURRENT
An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage.
The charging current into EMI suppression capacitors is disregarded in the first milliseconds after switch-on.
AC 100V AC 120V AC 230V
Inrush current
typ. 3A
Inrush energy
Fig. 6-1 Input inrush current, typical behavior
A
max. 10A
peak
peak
10A
3A
peak
peak
10A
3A
peak
peak
-25°C to +70°C
-25°C to +70°C
typ. 1A2s 1A2s 1A2s -25°C to +70°C
A: Start-up delay = Inrush delay
Input Current
Input: 230Vac
Output: 24V, 10A
Ambient: 25°C
Upper curve: Input current 10A / DIV
Input Voltage
Medium curve: Input voltage 500V / DIV
Lower curve: Output voltage 20V / DIV
Output Voltage
Time scale: 100ms / DIV
7. HOLD-UP TIME
AC 100V AC 120V AC 230V
Hold-up Time typ. 62ms 107ms 92ms 5A, 24V, see
typ. 23ms 46ms 42ms 10A, 24V, see Fig. 7-1
typ. 17ms 35ms 33ms 12A, 24V, see
Fig. 7-1 Hol d-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions
Hold-up Time
120ms
100
80
60
40
20
0
85 120100 180 230Vac
a) 24V 5A t yp .
a
b) 24V 5A m in.
b
c) 24V 10A typ.
d) 24V 10A m in.
e) 24V 12A mi n.
c
d
e
a
b
c
d
e
Input Voltage
Zer o Transit i o n
Int put
Vol tag e
Out put
Vol tag e
Hold-up Time
Note: At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is on during this time.
Fig. 7-1
Fig. 7-1
- 5%
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
8. OUTPUT
Output voltage
Adjustment range
max. 30V at clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max. 100mV static value, 0A Æ 10A Æ 0A
Ripple and noise voltage
Output capacitance typ. 7 000µF
Output current nom. 10A at 24V, ambient < 60°C, see Fig. 8-1
nom. 12A at 24V, max. 1 minute every 10 minutes in an average
Output power
nom. 288W max. 1 minute every 10 minutes in an average
Short-circuit current
max. 18A load impedance 100mOhm, see Fig. 8-1
Fig. 8-1 Output voltage vs. output current, typ.
Output Voltage
28V
24
20
16
12
8
4
0
Output Current
04 81216
Adjustment
Range
+60°C
+25°C
-25°C
nom. 24V
min. 24-28V guaranteed
max. 70mV 90 to 132Vac or 180 to 264Vac
max. 50mVpp 20Hz to 20MHz, 50Ohm
nom. 8.6A at 28V, ambient < 60°C, see Fig. 8-1
nom. 10.3A at 28V, max. 1 minute every 10 minutes in an average
nom. 240W ambient < 60°C
min. 14A load impedance 100mOhm, see Fig. 8-1
24.1V
20A10621418
±0.2%, at full load, cold unit
Peak current capability (up to several ms)
The power supply can deliver a peak current which is hig her than the specified short term current. This helps to start current demandi ng loads or to
safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be discharged and causes a voltage
dip on the output. Detailed curves can be found in chapter 25.1.
Peak current voltage dips
typ. from 24V to 17.5V at 50A for 2ms, resistive load
10000126343 (Version 00)
typ. from 24V to 18.5V at 20A for 50ms, resistive load
typ. from 24V to 12V at 50A for 5ms, resistive load
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 90.7% 91.0% 91.2% 10A, 24V
Power losses typ. 5.8W 8.4W 7.5W 0A
typ. 12.0W 12.3W 11.8W 5A, 24V
typ. 24.6W 23.7W 23.3W 10A, 24V
typ. 31.9W 29.6W 29.3W 12A, 24V
Fig. 9-1 Efficiency vs. output current at 24V Fig. 9-2 Losses vs. output current at 24V
Eff i ciency
92%
91
90
89
88
2
6
230Vac
120Vac
100Vac
Output Current
12A4810
Fig. 9-3 Efficiency vs. input voltage, 24V, 10A Fig. 9-4 Losses vs. input voltage, 24V, 10A
Eff i ciency
92%
91
90
89
88
85 120 155 190 225 260
Input Voltage
Vac
Powe r Losses
32W
28
24
20
16
120Vac
12
8
4
0
Powe r Losses
27W
24
21
18
15
12
9
85 120 155 190 225 260
230Vac
100Vac
024 81012A
100Vac
120Vac
Output Current
6
Input Voltage
230Vac
Vac
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
10. FUNCTIONAL DIAGRAM
Fig. 10-1 Functional diagram
L
N
Input Fuse
&
Input Filter
PFC
Inductor
Input
Rectifier
&
Inrush
Limiter
Power
Converter
Output
Voltage
Regulator
Output
Filter
V
OUT
+
+
-
-
115/230V
Auto Select
Output
Over-
Voltage
Protection
DC
ok
11. RELIABILITY
AC 100V AC 120V AC 230V
Lifetime expectancy min. 40 000h 51 000h 61 000h 40°C, 24V, 10A
min. 95 000h 101 000h 96 000h 40°C, 24V, 5A
min. 112 000h 15 years 15 years 25°C, 24V, 10A
MTBF SN 29500, IEC 61709 612 000h 638 000h 821 000h 40°C, 24V, 10A
1 019 000h 1 058 000h 1 393 000h 25°C, 24V, 10A
MTBF MIL HDBK 217F 456 000h 447 00 0h 472 000h 40°C, 24V, 10A, Ground Benign GB40
632 000h 628 000h 653 00 0h 25°C, 24V, 10A, Ground Benign GB25
The Lifetime expectancy shown in the ta ble indicates the operating hours (servic e life) and is determined by the lifetime expectancy of the built-in
electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is c alculated according to the capacitor’s manufactu rer specification. The
prediction model allows a calculation of up to 15 years from date of shipment.
MTBF stands for Mean Time Between Failure, whic h is calculated according to statistic al 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.
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
12. PRODUCT FACE LABEL
Fig. 12-1 Front side
Output Terminals
Screw terminals
+ Positive output
- Negative (return) output
Dual pins per pole
Input Terminals
Screw terminals
N … Neutral input
L … Line (hot) input
... PE (Protective Earth) input
Output voltage potentiometer
Open the flap to tune the output voltage.
Factory set: 24.1V
DC-on lamp (green)
On when the voltage on the output terminals is > 21 V
13. TERMINALS AND WIRING
Type Screw terminals
Solid wire 0.5-6mm
Stranded wire 0.5-4mm
American wire gauge 20-10 AWG
Ferrules allowed, but not required
Wire stripping length 7mm / 0.275inch
Screwdriver 3.5mm slotted or Pozidrive No 2
Recommended tightening torque 0.8Nm, 7lb.in
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.
2
2
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
14. EMC
The CE mark is in conformance with EMC guideline 89/336/EEC and 93/68/EEC and the low-voltage directive (LVD) 73/23/EWG.
EMC Immunity EN 61000-6-2, EN 61000-6-1 Generic standards
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 Æ N
Surge voltage on output EN 61000-4-5 + Æ -
Conducted disturbance EN 61000-4-6 0,15-80MHz 10V Criterion A
Mains voltage dips EN 61000-4-11 0% of 100Vac
Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C
Input voltage swells RA internal standard 300Vac, 500ms Criterion A
Powerful transients VDE 0160 over entire load range 750V, 1.3ms Criterion A
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 EN 61000-6-3, EN 61000-6-4 Generic standards
Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines
EN 55022 Class A, output lines
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 fulfilled
Voltage fluctuations, flicker EN 61000-3-3 fulfilled
This device complies with FCC Part 15 rules.
Operation is subjected to following tw o conditions: (1) this device may not cause harmful interferenc e, and (2) this device mus t accept any interf erence
received, including interference that may cause undesired operation.
Switching frequency 85kHz to 110kHz input voltage dependent
Air discharge
Output lines
N / L Æ PE
+ / - Æ PE
40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
8kV
15kV
4kV
2kV
2kV
4kV
500V
500V
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
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 C
Criterion C
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Rockwell Automation
C
1606-XLE240EP 24V, 10A; Single Phase Input
15. ENVIRONMENT
o
r
t
t
r
e
Altitude
6000m
Fig. 15-1
m
Operational temperature -25°C to +70°C (-13°F to 158°F) reduce output power according
Output de-rating 6W/°C 60-70°C (140°F to 158°F)
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
Shock 30g 6ms, 20g 11ms
2 hours / axis
3 bumps / direction, 18 bumps in total
Do not energize while condensation is present
IEC 60068-2-6
IEC 60068-2-27
Altitude 0 to 6000m (0 to 20 000ft) Reduce output power or ambient temperature above
2000m sea level.
Output de-rating (for altitude) 15W/1000m or 5°C/1000m above 2000m (6500ft), see Fig. 15-2
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. 15-1 Output current vs. ambient temp., Fig. 15-2 Output current vs. altitude, 24V
Allowable Output
Current at 24V
12A
10
8
6
4
2
0
-25 0 20 40
c
n
o
t
n
i
u
u
o
s
Ambient Temperature
60
s
o
h
r
t
t
e
r
m
70°
Allowable Output
Current at 24V
12A
10
8
6
4
A
.
.
.
T
m
a
<
b
.
B
.
.
a
T
b
m
<
2
.
C
0
0 2000 4000
.
.
a
T
b
m
<
h
s
C
B
A
°
0
6
C
5
C
°
0
0
4
C
°
The ambient temperature is defined 2cm below the unit.
16. PROTECTION FEATURES
Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection typ. 35Vdc
max. 39Vdc
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
Internal input fuse T6.3A H.B.C. not user replaceable
Note: In case of a protection event, audible noise may occur.
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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.
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
17. 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. 0.36mA 100Vac, 50Hz, TN mains
typ. 0.50mA 120Vac, 60Hz, TN mains
typ. 0.64mA 230Vac, 50Hz, TN mains
< 0.45mA 110Vac, 50Hz, TN mains
< 0.62mA 132Vac, 60Hz, TN mains
< 0.85mA 264Vac, 50Hz, TN mains
18. DIELECTRIC STRENGTH
To fulfill the PELV requirements acc ording t o EN6020 4-1 § 6.4.1 , we rec omme nd th at eit her the + pole, the – pol e or any ot her part of the outp ut circuit
shall be connected to the protective earth system. This helps to avoid situations i n wh ich a load starts unexpectedly or can not be switched off any more
when unnoticed earth faults occur.
Fig. 18-1 Dielectric strength
Input
L
N
The output voltage is floating and has no ohmic connection to ground.
A
Earth, PE
B
Output
+
C
-
A B C
Type test 60s 2500Vac 3000Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac
Field test 5s 2000Vac 2000Vac 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.
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
19. APPROVALS
IEC 60950-1
IECEE
CB SCHEME
UL 508
UL 60950-1
18WM
LISTED
IND. CONT. EQ.
20. 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
CB Scheme,
Information Technology Equipment
LISTED as Industrial Control Equipment
E198865
RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1) and Canada
(C22.2 No. 60950)
Information Technology Equipment, Level 5
21. 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 (PCB), Pentachlorophenol (PCP), Polychlorinated naphthalene (PCN), Polybrom Biphenyl (PBB),
Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO),
Cadmium, Asbest, Mercury, Silicia
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1606-XLE240EP 24V, 10A; Single Phase Input
22. PHYSICAL DIMENSIONS AND WEIGHT
Weight 800g / 1.76lb
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.
Fig. 22-1 Front view Fig. 22-2 Side view
23. INSTALLATION AND OPERATION INSTRUCTIONS
Hazardous voltage inside device. Risk of electric shock, severe burns, or death.
• Do not use the unit witho ut proper e arth connecti on (Protec tive Earth). U se the pin o n the termi nal block for earth connec tion 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.
Mounting Orientation:
Output terminal must be located on top and input terminal on the bottom. For other orientat i ons see section 25.12.
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 ri ght side are recommended when loade d permanently with full pow er. In case the adjacent
device is a heat source, 15mm clearance is recommended.
Service parts:
The unit does not contain any serviceable parts. The tripping of an internal fuse is caused by an internal defect
.
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
24. ACCESSORIES
1606-XLB Wall mounting bracket
This bracket is used to mount 1606 units onto a flat surfac e without utilizing a DIN-Rail. The two alumi num brackets and the blac k plastic slider of the
unit have to be detached, so that the two steel brackets can be mounted.
Fig. 24-1 1606-XLB Wall Mounting Bracket Fig. 24-2 Assembled Wall Mounting Bracket
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
25. APPLICATION NOTES
25.1. PEAK CURRENT CAPABILITY
Solenoids, contactors and pneumatic mod ules often have a steady state coil and a pick-up coil. The inrush current deman d of th e pick-up coil is several
times higher than the steady state current and usually ex c eeds the nom in al output current (including the PowerBoost) The same situati on applies, when
starting a capacitive load.
Branch circuits are often protected with circuit br eak ers or fus es . In c ase of a short or an overload in the branch c irc uit, 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 outp ut 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. 25-1 Peak load 20A for 50ms, typ. Fig. 25-2 Peak load 50A for 5ms, typ.
24V
20A
Output
Vol tag e
18.5V
24V
50A
Output
Vol tag e
12V
Output
0A
10ms/DIV
Peak load 20A (resistive) for 50ms
Output voltage dips from 24V to
Current
18.5V.
0A
Peak load 50A (resistive) for 5ms
Output voltage dips from 24V to
25.2. CHARGING OF BATTERIES
The power supply shall not be used to charge batteries. Choose 1606-XLS for charging batteries.
1ms/DIV
Output
Current
12V.
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
25.3. BACK-FEEDING LOADS
Loads such as decelerating motors and inductors can feed voltage back to the power supply . This feature is also called return volt age immunity or
resistance against Back- E.M.F. (
This power supply is resistant and does not sh ow malfunctioning whe n a load feeds back v oltage to the power supply . It does not m atter, whether the
power supply is on or off.
The maximum allowed feed back volt age is 35V dc. The abs orbing e nergy c an be calcu lated ac cording t o the bui lt-in large s ized ou tpu t capacit or which
is specified in chapter 8.
25.4. 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 trip ping beh avior. Ther efore, t hese ty pical te sts c an only be us ed as a recom men dation or for c omparin g
two different power supplies. Furthermore, the loop impe dance has a major influence on whether a breaker trips or not. Tw o 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. 25-3 Branch protectors, test circuit 1
Po w e r
Supply
AC
Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).
AC
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 le ngth table shows that up to
25.1m wire with a cross section of 2.5mm2 are below 180mOhm. A wire not smaller than 2.5mm2 shall be used.
+
-
DC
Fig. 25-4 Branch protectors, test circuit 2
Po w e r
Supply
+
-
DC
Electro Magnetic Force).
Ci r c u i t
Breaker
I
S1
Ci r c u i t
Breaker
I
R
S1 Lo ad
+
-
+
-
Lo ad
Parameters:
Input voltage: 230Vac, load current: 0A
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 13A
Parameters:
Input voltage: 230Vac, load current: 0A
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?
0.5mm
82mOhm 2.3m 3.2m 4.6m 6.9m 11.4m 18.3m
180mOhm 5.0m 7.0m 10.0m 15.0m 25.1m 40.1m
220mOhm 6.1m 8.6m 12.3m 18.4m 30.6m 49.0m
2
0.7mm
2
1.0mm
2
1.5mm
2
2.5mm
2
4.0mm
2
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Rockwell Automation
1606-XLE240EP 24V, 10A; Single Phase Input
25.5. INDUCTIVE A ND CAPACITIVE LOADS
The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.
25.6. SERIES OPERATION
The power supply can be put in series to increase the output voltage.
Fig. 25-5 Schematic for series operation
Uni t A
AC
Uni t B
AC
DC
DC
+
-
+
-
Ea r t h
+
Load
-
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) Warning! 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.
Note: Avoid return voltage (e.g. from a decelerating motor or battery) which is
applied to the output terminals.
25.7. PARALLEL USE TO INCREASE OUTPUT POWER
The power supply shall not be used in parallel to increase the output power.
25.8. PARALLEL USE FOR 1+1 REDUNDANCY
Power supplies can be paralleled for 1+1 redundancy to gain a higher system availability. Redundant systems require a certain amount of extra power
to support the load in case one power s upply unit fa ils. The simpl est way is to put two 160 6-XLE power supplies in parall el. In c ase one power supply
unit fails, the other one is automatically able t o support the load curre nt without any interrupt ion. This simple way to build a redundant system has two
major disadvantages:
a. The faulty power supply can not be recognized. The green LED will still be on since it is reverse-powered from the other power supply.
b. It does not cover failures such as an internal short circuit i n the secondar y side of the power supply. In such a - virtually nearly impossible - case,
the defective 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 1606-XLSRED or 1606XLERED.
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 included in the redundancy module 1606-XLERED. This feature
reports a faulty unit.
c) When possible, connect each power supply to different phases or circuits.
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Rockwell Automation
y
1606-XLE240EP 24V, 10A; Single Phase Input
25.9. EXTERNAL INPUT PROTECTION
The unit is tested and approved for branch circuits up to 20A. Ex ternal protection is only required if the s upplying 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. 20A 20A
min. 10A 6A
25.10. OPERATION ON TWO PHASES
Fig. 25-6 Schematic for two phase operation
L1
L3
L2
max.
+10%
240V
Power Suppl
Fuse
PE
L
N
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
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 25.9 “External Input
Protection”.
+10%
.
25.11. 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: Type IP66 Box PK 9519 100, plastic, 180x180x165mm
Load: 24V, 8A; (=80%) load is placed outside the box
Input: 230Vac
Temperature inside the box: 51.7°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside the box: 23.1°C
Temperature rise: 28.6K
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Rockwell Automation
C
C
C
C
C
1606-XLE240EP 24V, 10A; Single Phase Input
25.12. 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 amo unt of reduction influences the l ifetime expectancy of the powe r 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. 25-7 Mounting
Orientation A
Standard Orientation
Fig. 25-8
Mounting Orientation
B
(Upside down)
OUTPUT
Power
Supply
INPUT
INPUT
Supply
Power
OUTPUT
Fig. 25-9 Mounting
Orientation C
(Table-top mounting)
Fig. 25-10 Mounting
Orientation D
(Horizontal cw)
Supply
INPUT
OUTPUT
Power
Fig. 25-11 Mounting
Orientation E
(Horizontal ccw)
OUTPUT
Power
INPUT
Supply
Out put Current
10A
7.5
5
2.5
0
Ambient Temperature
10 20 30 40
Out put Current
10A
7.5
5
2.5
0
Ambient Temperature
10 20 30 40
Out put Current
10A
7.5
5
2.5
0
Ambient Temperature
10 20 30 40
Out put Current
10A
7.5
5
2.5
0
Ambient Temperature
10 20 30 40
Out put Current
10A
7.5
5
2.5
0
Ambient Temperature
10 20 30 40
1
A
60°
50
A
2
A
1
50
A
2
1
A
50
A
2
1
A
50
A
2
A
1
50
60°
60°
60°
60°
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