Beckhoff PS1061-2420-0000 Operator's manual

Documentation | EN
PS1061-2420-0000
Power supply 24 V DC, 20 A, 1 phase, AC 200-240 V
2021-06-16 | Version: 1.0

Table of contents
PS1061-2420-0000 3Version: 1.0
Table of contents
1 Overview.....................................................................................................................................................5
2 Foreword ....................................................................................................................................................6
2.1 Notes on the documentation..............................................................................................................6
2.2 Safety instructions .............................................................................................................................7
2.3 Terminology and abbreviations .......................................................................................................10
3 Technical data, mounting, wiring...........................................................................................................11
3.1 AC input...........................................................................................................................................11
3.2 DC input...........................................................................................................................................12
3.3 Input inrush current..........................................................................................................................12
3.4 Output..............................................................................................................................................13
3.5 Hold-up time ....................................................................................................................................14
3.6 DC-OK relay contact........................................................................................................................15
3.7 Efficiency and losses .......................................................................................................................16
3.8 Life expectancy................................................................................................................................17
3.9 Terminals and wiring .......................................................................................................................18
3.10 Functional wiring diagram................................................................................................................18
3.11 Front side and operating elements ..................................................................................................19
3.12 EMC.................................................................................................................................................20
3.13 Environment ....................................................................................................................................21
3.14 Protective functions and safety features..........................................................................................22
3.15 Dielectric strength............................................................................................................................23
3.16 Declaration of conformity and approvals .........................................................................................24
3.17 Dimensions and weight ...................................................................................................................25
4 Application notes.....................................................................................................................................26
4.1 Charging batteries ...........................................................................................................................26
4.2 Series connection ............................................................................................................................26
4.3 Parallel use to increase power ........................................................................................................27
4.4 Parallel use for 1+1 redundancy......................................................................................................27
4.5 Operation on two phases.................................................................................................................28
4.6 Use in a tightly sealed enclosure.....................................................................................................28
5 Appendix ..................................................................................................................................................29
5.1 Accessories .....................................................................................................................................29
5.2 Documentation issue status ............................................................................................................31
5.3 Support and Service ........................................................................................................................32

Table of contents
PS1061-2420-00004 Version: 1.0

Overview
PS1061-2420-0000 5Version: 1.0
1 Overview
PS1061-2420-0000 | Power Supply 24V, 20A, 480W, 1-phase
• AC 200-240V input
• Active power factor correction PFC
• Width only 49mm
• Efficiency 95.7%
• Full power between -25°C and +55°C
• Including DC-OK relay contact
The PS1061-2420-0000 is a 1-phase 24V power supply with an output current of 20A and an output power
of 480W.
The device has an input voltage range of AC200-240V, an active power factor correction (PFC) and input
inrush current limitation.
The power supply is part of the PS1000 family and has a width of 49mm. A DC-OK LED and a potential-free
relay contact monitor the status of the output voltage.
Overview of technical data *)
Overview of technical data PS1061-2420-0000
Output voltage 24V DC
Adjustment range 24 - 28V (24.1V preset)
Output current 20.0 - 17.1A at 24 - 28V, ambient temperature <55°C
15.00-12.8A at 24-28V, ambient temperature <70°C
linear derating between +55°C and +70°C
Output power 480W (ambient temperature < 55°C)
360W (ambient temperature < 70°C)
Input voltage AC AC 200-240V (±10%)
Mains frequency 50 - 60Hz ±6%
Input current AC 2.2A
Power factor 0.99
Efficiency 95.7%
Temperature range -25°C to +70°C (in operation)
Hold-up time 30ms
Dimensions (W x H x D) 49mm x 124mm x 124mm
(without DIN rail)
Weight 620g
Approvals/
markings
CE, cULus
*) All values typical for 24V, 20A, 230Vac, 50Hz, +25°C ambient temperature and after a warm-up time of five minutes, unless other-
wise stated.

Foreword
PS1061-2420-00006 Version: 1.0
2 Foreword
2.1 Notes on the documentation
Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development.
We reserve the right to revise and change the documentation at any time and without prior announcement.
No claims for the modification of products that have already been supplied may be made on the basis of the
data, diagrams and descriptions in this documentation.
Trademarks
Beckhoff®, TwinCAT®, TwinCAT/BSD®, TC/BSD®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®,
SafetyoverEtherCAT®, TwinSAFE®, XFC®, XTS® and XPlanar® are registered trademarks of and licensed by
Beckhoff Automation GmbH. Other designations used in this publication may be trademarks whose use by
third parties for their own purposes could violate the rights of the owners.
Patent Pending
The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, EP1456722, EP2137893, DE102015105702 with corresponding
applications or registrations in various other countries.
Intended audience
This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
It is essential that the documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.
The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.

Foreword
PS1061-2420-0000 7Version: 1.0
2.2 Safety instructions
Description of instructions
In this documentation the following instructions are used.
These instructions must be read carefully and followed without fail!
DANGER
Serious risk of injury!
Failure to follow this safety instruction directly endangers the life and health of persons.
WARNING
Risk of injury!
Failure to follow this safety instruction endangers the life and health of persons.
CAUTION
Personal injuries!
Failure to follow this safety instruction can lead to injuries to persons.
NOTE
Damage to environment/equipment or data loss
Failure to follow this instruction can lead to environmental damage, equipment damage or data loss.
Tip or pointer
This symbol indicates information that contributes to better understanding.
Intended use
This device is designed for installation in a housing and is intended for general professional use, for example
in industrial control systems or office, communication and measuring equipment.
Do not use this power supply in installations where a malfunction could cause serious injury or danger to
human life.
Exclusion of liability
All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.
Safety regulations
Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.

Foreword
PS1061-2420-00008 Version: 1.0
Safety instructions and installation requirements for the PS1061-2420-0000 power supply
DANGER
Danger of electric shock, fire, injuries, injuries resulting in death!
• Do not use the power supply without proper grounding (protective conductor). Use the terminal at the in-
put terminal strip for the earth connection, not one of the screws on the housing.
• Switch off the power supply before working on the device. Provide protection against unintentional re-
connection.
• Ensure proper wiring by following all local and national regulations.
• Do not modify or attempt to repair the device.
• Do not open the device, as high voltages are present inside.
• Avoid foreign bodies entering the housing.
• Do not use the device in damp locations or in areas where moisture or condensation is likely to occur.
• Do not touch the device when it is switched on or immediately after it has been switched off. Hot sur-
faces can cause burns.
• If this device is operated outside of the specification, the protection offered by the device may be nega-
tively affected
Further notes on installation requirements
• If any damage or malfunction occurs during installation or operation, turn off the power supply
immediately and return the device to the factory for inspection.
• Mount the device on a DIN rail so that the input terminals are at the bottom of the device.
• Install the device in a housing that provides protection against electrical, mechanical and fire
hazards.
• Make sure that the wiring is correct by complying with all local and national regulations.
ðUse suitable copper cables designed for a minimum operating temperature of
60°C at ambient temperatures up to +45°C,
75°C at ambient temperatures up to +55°C and
90°C at ambient temperatures up to +70°C.
ðMake sure that all individual strands of a wire are inside the terminal connection.
ðUnused screw terminals should be tightened firmly.
• The maximum temperature of the ambient air is +70°C. The operating temperature corresponds
to the ambient air temperature and is defined 2cm below the device.
• This device is designed for convection cooling and does not require an external fan. Do not ob-
struct the air circulation. The ventilation grille must not be covered (e.g. by cable ducts)!
• Maintain the following installation distances:
ð40mm at the top, 20mm at the bottom and 5mm on the left and right are recommended if
the device continuously runs at more than 50% of the rated output.
ðIncrease this distance to 15mm if the adjacent device is a heat source (e.g., another power
supply).
ðThe distance can be reduced from 5mm to zero if the device is permanently loaded with
less than 50%.
• The device is designed, tested and approved for branch circuits up to 20A without an additional
protective device.
Use an additional protective device for branch circuits with larger current values. If an external in-
put protection device is used, do not use one smaller than a 10A B or 6A C characteristic in or-
der to avoid incorrect triggering of the circuit breaker.
• The device is designed as equipment of "Protection Class I" according to IEC61140.
ðDo not use the device without a proper PE (Protective Earth) connection!

Foreword
PS1061-2420-0000 9Version: 1.0
Further notes on operation
• This device contains no parts that require maintenance. If an internal fuse trips, this is due to an
internal defect.
• The device is designed for areas with a degree of pollution 2 in controlled environments. No con-
densation or frost is allowed.
• The device housing offers IP20 protection. The housing offers no protection against spilled liq-
uids.
• The device is designed for operation in the relative humidity range between 5% and 95%.
• The device is designed for overvoltage category II zones. Below an altitude of 2000m the device
is tested for surge voltages up to 4kV, which corresponds to the OVCIII according to
IEC60664-1.
• The device is suitable for supply from TN, TT or IT networks. The continuous voltage between
the input terminal and the PE potential must not exceed 300Vac.
• The device is designed for altitudes up to 5000m. A reduction of the output current is required
above 2000m.

Foreword
PS1061-2420-000010 Version: 1.0
2.3 Terminology and abbreviations
PE and the earthing
symbol
PE is the abbreviation for "protective earth" and has the same meaning as the
earthing symbol
Earth, ground This document uses the term “earth” which is the same as the U.S. term “ground”.
T.b.d. Still to be defined, value or description will follow in due course.
AC 230V A value preceded by "AC" or "DC" represents a nominal voltage or a nominal
voltage range. The nominal voltage or the nominal voltage range may be provided
with tolerances. (e.g., AC 230V ±10%). The calculated total range then indicates
the working range of the device.
Example:
DC 12V refers to a 12V battery, regardless of whether it is fully charged
(13.7Vdc) or discharged (10Vdc).
230Vac A value followed by the unit Vac or Vdc is an instantaneous value that does not
contain any additional tolerances.
50Hz vs. 60Hz Unless otherwise specified, AC 230V parameters are valid at a mains frequency of
50Hz.
may A keyword indicating a choice without implied preference.
shall A keyword indicating a mandatory requirement.
should A keyword indicating a choice with a clearly preferred method of implementation.

Technical data, mounting, wiring
PS1061-2420-0000 11Version: 1.0
3 Technical data, mounting, wiring
3.1 AC input
AC input
AC input Nom. AC 200 - 240V Suitable for TN, TT and IT networks
AC input range Min. 180 - 264Vac Continuous operation
Min. 264 - 300Vac For up to 500ms max.
Permissible voltage L or N to earth Max. 300Vac Continuous according to IEC 60664-1
Input frequency Nom. 50 - 60Hz ±6%
Turn-on voltage Typ. 150Vac Static, see Fig. Input voltage range; switch-on behavior definitions
Shut-down voltage Typ. 130Vac Static, see Fig. Input voltage range; switch-on behavior definitions
External input protection see recommendations in chapter "Further notes on installation requirements [}8]"
Input current Typ. 2.2A At 24V, 20A, 230Vac, see fig. Input to output current; power factor
to output current
Power factor*) Typ. 0.99 At 24V, 20A, 230Vac, see fig. Input to output current; power factor
to output current
Peak factor**) Typ. 1.6 At 24V, 20A, 230Vac
Start-up delay Typ. 170ms See Fig. Input voltage range; switch-on behavior definitions
Rise time Typ. 60ms At 24V, 20A constant current load, 0mF load capacity, see Fig. In-
put voltage range; switch-on behavior definitions
Typ. 240ms At 24V, 20A constant current load, 20mF load capacity, see Fig.
Input voltage range; switch-on behavior definitions
Turn-on overshoot Max. 200mV Ohmic load, See fig. Input voltage range; switch-on behavior defini-
tions
*) The power factor is the ratio of real (or active) power to apparent power in an AC circuit.
**) The peak factor is the mathematical ratio of the peak value to the RMS value of the input current waveform.
Fig.1: Input voltage range; switch-on behavior definitions
Fig.2: Input current over output current; power factor over output current

Technical data, mounting, wiring
PS1061-2420-000012 Version: 1.0
3.2 DC input
Do not operate this power supply with DC input voltage!
3.3 Input inrush current
An NTC input inrush current limiter, which is bridged by a relay contact in normal operation, limits the input
inrush current after the input voltage is switched on.
The charge current of the interference suppression capacitors during the first few microseconds after
switching on is not taken into account.
AC 230 V
Input inrush current Max. 32Apeak At +40°C, cold start
Typ. 26Apeak At +40°C, cold start
Typ. 16Apeak At +25°C, cold start
Inrush energy Max. 2.1A2s At +40°C, cold start
Fig.3: Input inrush current surge, typical behavior, 230Vac input, 24V/20A output, 25°C ambient
temperature

Technical data, mounting, wiring
PS1061-2420-0000 13Version: 1.0
3.4 Output
The output provides an SELV/PELV nominal voltage that is electrically isolated from the input voltage.
The output is designed to supply any type of load, including capacitive and inductive loads. If very large
capacitors, such as EDLCs (electrical double-layer capacitors or "UltraCaps") with a capacitance > 0.6F are
connected to the output, the device can charge the capacitor intermittently.
The output is electronically protected against overload, no-load and short circuit. Noise may be audible in the
case of a protective event.
Output
Output voltage Nom. DC 24V
Adjustment range Min. 24 - 28V Guaranteed value
Max. 30V 2) In end position of the potentiometer, clockwise.
Factory settings Typ. 24.1V ±0.2%, under full load and cold device
Line regulation Max. 10mV 180 - 300Vac
Load regulation Max. 150mV 0A → 20A, static value, see fig. Output voltage over output current, typ.
Residual ripple and ripple
voltage
Max. 100mVpp 20Hz to 20MHz, 50Ohm
Output current 3) Nom. 20A At 24V and ambient temperature below 55°C
Nom. 15.0A At 28V and ambient temperature below 55°C,
Nom. 17.1A At 24V and an ambient temperature of 70°C
Nom. 12.8A At 28V and an ambient temperature of 70°C
Overload characteristics Continuous cur-
rent
Output voltages >13Vdc (dependent on the input voltage), see fig. Output voltage over
output current, typ.
Hiccup mode 1) Output voltage <13Vdc (dependent on the input voltage), see fig. Output voltage over
output current
Overload/
short circuit current
Max. 24A Continuous current, see fig. Output voltage to output current, typ.
Typ. 25A Peak current value in intermittent operation for typically 1s
Load impedance 50mOhm, see Fig. Output voltage over output current, typ.
The discharge current of the output capacitors is not included.
Max. 8.1A RMS value of the current in intermittent operation,
load impedance 50mOhm, see fig. Output voltage to output current, typ.
Output capacity Typ. 4,300µF Included in the power supply
Back-feeding loads Max. 35V This power supply is stable and will not malfunction if a load is feeding back voltage to
the power supply. It is irrelevant whether the power supply is switched on or off. The ab-
sorbent energy can be calculated according to the large built-in output capacitor.
1) Hiccup mode
In case of heavy overload (if the output voltage falls below 13V) the power supply supplies output current for 3 to 4 seconds. There-
after the output is switched off for about 7 seconds before a new switch-on attempt automatically takes place for a duration of 0.6 sec-
onds. This cycle is repeated as long as the overload persists. After the overload has been rectified, the device will operate normally.
2) This is the maximum output voltage that can occur in the end position of the potentiometer in clockwise direction due to tolerances. It
is not a guaranteed value that can be achieved.
3) Linear derating between +55°C and 70°C ambient temperature
Fig.4: Output voltage over output current, typ.; intermittent operation, short circuit at output

Technical data, mounting, wiring
PS1061-2420-000014 Version: 1.0
3.5 Hold-up time
The hold-up time is the time during which the output voltage of a power supply unit remains within the
specification after a loss of input power. The hold-up time depends on the output load. Without load the hold-
up time can be several seconds. The green DC-OK lamp also lights up during this time.
230Vac
Mains failure
Hold-up time
Typ. 65ms At 24V, 10A, see Fig. Hold-up time over input voltage
Min. 55ms At 24V, 10A, see Fig. Hold-up time over input voltage
Typ. 30ms At 24V, 20A, see Fig. Hold-up time over input voltage
Min. 23ms At 24V, 20A, see Fig. Hold-up time over input voltage
Fig.5: Hold-up time over input voltage; switch-off behavior, definitions

Technical data, mounting, wiring
PS1061-2420-0000 15Version: 1.0
3.6 DC-OK relay contact
This function monitors the output voltage generated by the power supply itself.
DC-OK relay contact
The contact closes when the output voltage reaches 22V.
The contact opens as soon as the output voltage falls below 22V.
Switching hysteresis typ. 0.25V
Contact load capacity Maximum 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, ohmic load
Minimum permissible load: 1mA at 5Vdc
Insulation voltage see the table in chapter Dielectric strength [}23]
Fig.6: Behavior of the DC-OK relay contact

Technical data, mounting, wiring
PS1061-2420-000016 Version: 1.0
3.7 Efficiency and losses
230Vac
Efficiency Typ. 95.7% At 24V, 20A
Average efficiency*) Typ. 95.2% 25% at 5A, 25% at 10A,
25% at 15A. 25% at 20A
Losses Typ. 1.35W At 24V, 0A
Typ. 10.7W At 24V, 10A
Typ. 21.6W At 24V, 20A
*) The average efficiency is based on assumptions for a typical application with a power supply load of:
25% of the nominal load for 25% of the time,
50% of the nominal load for a further 25% of the time,
75% of the nominal load also for 25% of the time and
100% of the nominal load during the remaining time.
Fig.7: Efficiency over output current; losses over output current

Technical data, mounting, wiring
PS1061-2420-0000 17Version: 1.0
3.8 Life expectancy
230Vac
Lifetime expectancy1) 93,000h At 24V, 10A and +40°C
264,000h At 24V, 10A and +25°C
51,000h At 24V, 20A and +40°C
144,000h At 24V, 20A and +25°C
MTBF2) SN 29500, IEC61709 482,000h At 24V, 20A and +40°C
894,000h At 24V, 20A and +25°C
MTBF2) MIL HDBK 217F 207,000h At 24V, 20A and +40°C; Ground Benign GB40
279,000h At 24V, 20A and +25°C; Ground Benign GB25
45,000h At 24V, 20A and 40°C; Ground Fixed GF40
57,000h At 24V, 20A and +25°C; Ground Fixed GF25
1) The calculated lifetime expectancy shown in the table indicates the minimum number of operating hours
(service life) and is determined by the lifetime expectancy of the built-in electrolytic capacitors. The lifetime
expectancy is stated in operating hours and is calculated according to the specifications of the capacitor
manufacturer. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to
15years (131,400h). Any number exceeding this value represents a calculated theoretical service life which
can be used to compare devices.
2) MTBF stands for Mean Time Between Failure, which is calculated on the basis of statistical equipment
failures and indicates the reliability of a device. It is the statistical representation of the probability of failure of
a device and does not necessarily represent the service life of a product.
The MTBF number is a statistical representation of the failure probability of a device. For example, an MTBF
number of 1,000,000h means that statistically, if 10,000 devices are installed in the field, one device will fail
every 100hours. However, it is not possible to determine whether the failed device has run for 50,000hours
or only 100hours.

Technical data, mounting, wiring
PS1061-2420-000018 Version: 1.0
3.9 Terminals and wiring
The terminals are designed to be finger-safe according to IP20 and are suitable for field or factory wiring.
Technical data Input Output DC-OK signal
Connection cross-section e*: max. 6mm²
f*: max. 4mm²
a*: max. 4mm²
(d<2.8mm)
e*: max. 6mm²
f*: max. 4mm²
a*: max 4mm²
(d<2.8mm)
e*: max. 1.5mm²
f*: max. 1.5mm²
a*: max. 1.5mm²
(d<1.6mm)
Connection cross section
(AWG)
e*: AWG 20-10
f*: AWG 20-10
a* AWG 20-10 (d<2.8mm)
e*: AWG 20-10
f*: AWG 20-10
a* AWG 20-10
(d<2.8mm)
e*: AWG 24-16
f*: AWG 24-16
a*: AWG 24-16
(d<1.6mm)
Strip length 7mm / 0.28inch 7mm / 0.28inch 7mm / 0.28inch
e* = solid wire
f* = stranded wire
a* = with ferrule
Wiring instructions:
• Use suitable copper cables that are designed for at least the following operating temperatures:
+75°C, for ambient temperatures up to +55°C (minimum) and
+90°C, for ambient temperatures up to +70°C (minimum)
• Observe the national installation rules and regulations!
• Do not use the device without PE connection.
• Make sure that all single wires of a strand are connected to the terminal!
• Unused terminals should be tightened firmly.
• Ferrules are permitted.
3.10 Functional wiring diagram
Fig.8: Functional wiring diagram

Technical data, mounting, wiring
PS1061-2420-0000 19Version: 1.0
3.11 Front side and operating elements
Fig.9: PS1061-2420-0000, front
Input terminals (screw terminals)
Designation (A) Description
N Mains input N
L Mains input L
PE input (protective conductor)
Output terminals (screw terminals)
Designation (B) Description
+ two identical positive poles, positive output
- two identical negative poles, negative output
Potentiometer for the output voltage
Designation (C) Description
Potentiometer Guaranteed adjustment range: 24V - 28V.
Factory setting: 24.1V
DC-OK LED
Designation (D) Description
LED green On when the voltage at the output terminals is>18 V.
DC-OK relay contact (quick-connect spring-loaded terminals)
Designation (E) Description
13 / 14 make contact The DC-OK relay contact [}15] is not synchronized with the DC-OK LED.
See chapter on DC OK relay contact for more information.

Technical data, mounting, wiring
PS1061-2420-000020 Version: 1.0
3.12 EMC
The device allows use in industrial, residential, business and commercial areas as well as in small
businesses.
The device was developed in accordance with EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,
EN61000-3-2 and EN 61000-3-3.
This device complies with the provisions of FCC Part 15. Operation is subject to the following two conditions:
1. This device must not cause harmful interference and
2. this device must accept all interference received, including interference that may cause unwanted op-
eration.
Without additional measures to reduce the cable-bound emission at the output (e.g. using filters), the device
is not suitable for supplying a local DC supply network for residential, business and commercial areas or for
small businesses.
EMC interference immu-
nity
Strong transients VDE 0160 Over the entire load range 750V, 0.3ms
EMC interference emis-
sion
According to the generic standards: EN 6100-6-3 and EN6100-6-4
Conducted interference
emission, input lines
EN 55011, EN 55022, FCC Part 15,
CISPR 11, CISPR 22
Class B
Conducted interference
emission, output lines 2)
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 Limit values for local DC networks not
fulfilled
Interfering radiation EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 Fulfilled for Class A devices with a
load between 0A and 20A
Fulfilled for Class C devices with a
load between 7A and 20A
Voltage fluctuations, flicker EN 61000-3-3 Fulfilled, tested with constant current
loads, non-pulsing
Switching frequencies
PFC converter 40kHz to 120kHz Dependent on input voltage and
output load
Main converter 80kHz to 140kHz Dependent on output voltage and
output load