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PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
P
RODUCT
D
ESCRIPTION
The PIRD20.241 is a redundancy module, which can be used to build 1+1 and N+1 redundant systems. It is equipped with two input channels, which can be connected to power supplies with up to 10A output current and one output, which can carry nominal currents up to 20A. The module is suitable for power supplies with constant current overload behavior as well as any kind of “hiccup” overload behavior.
The PIRD20.241 is the perfect solution to use in a redundant system, if the power supply itself is equipped with a DC-OK signal.
Another application for this redundancy module is to separate sensitive loads from non-sensitive loads. This avoids the distortion of the power quality for the sensitive loads which can cause controller failures.
O
RDER
N
UMBER
Redundancy Module PIRD20.241
R
EDUNDANCY
M
ODULE
Cost effective solution to build redundant systems
Dual input with single output
Two diodes (common cathode)
DC 12-28V ±25% wide-range input
Full power between -40°C and +55°C
Width only 39mm
Large screw terminals
Easy wiring:
Distribution terminal for negative pole included
3 year warranty
S
HORT
-
FORM
D
ATA
Input voltage
Input voltage range
Input current
Output current
DC 12-28V
9-35Vdc
2x 0-10A
2x 0-6.25A
0-20A
0-12.5A
26A
±25% ambient < +55°C ambient < +70°C ambient < +55°C ambient < +70°C at cont. overload/ short circuit input: 2x5A input: 2x10A
Input to output voltage drop
Power losses typ. 0.46V typ. 0.56V
0W typ. 4.6W typ. 11.2W at no load input: 2x5A input: 2x10A
Temperature range -40°C to +70°C operational
Derating 0.5A/°C +55 to +70°C
Dimensions
Weight
39x124x124mm WxHxD
280g / 0.62lb
M
AIN
A
PPROVALS
For details and the complete approval list, see chapter 14.
UL 508
ATEX
UL 60950-1
IECEx
Class I Div 2
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
1/17
PIANO-Series
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE
I
NDEX
Page
Intended Use ....................................................... 3
Installation Instructions ...................................... 3
Input and Output Characteristics ....................... 5
Power Losses ........................................................ 6
Lifetime Expectancy and MTBF ........................... 6
Terminals and Wiring .......................................... 7
Functional Diagram ............................................. 7
Front Side and User Elements ............................. 8
EMC ...................................................................... 9
Environment ...................................................... 10
Protection Features ........................................... 11
Safety Features .................................................. 11
Dielectric Strength ............................................ 11
Page
Approved, Fulfilled or Tested Standards ......... 12
Regulatory Product Compliance ...................... 13
Physical Dimensions and Weight ..................... 14
Application Notes ............................................. 15
Using Only One Input Instead of Both
Channels ............................................................... 15
Recommendations for Redundancy ......... 15
Inductive and Capacitive Loads................ 16
Use in a Tightly Sealed Enclosure ............ 16
Example: Redundancy for Controls ......... 16
Example: 1+1 Redundancy up to 10A ...... 17
Example: 1+1 Redundancy up to 20A ...... 17
The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask you to always use the latest issue of this document (available under www.pulspower.com). No part of this document may be reproduced or utilized in any form without our prior permission in writing.
T
ERMINOLOGY AND
A
BREVIATIONS
DC 24V
24Vdc may shall should
A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
A figure with the unit (Vdc) at the end is a momentary figure without any additional tolerances included.
A key word indicating flexibility of choice with no implied preference
A key word indicating a mandatory requirement
A key word indicating flexibility of choice with a strongly preferred implementation
1+1 Redundancy
N+1 Redundancy
Use of two identical power supplies in parallel to provide continued operation following most failures in a single power supply. The two
N+1
Redundancy
1+1
Redundancy power supply outputs should be isolated from each other by utilizing diodes or other switching arrangements.
E.g. two 10A power supplies are needed to achieve a 10A redundant system.
AC
DC
IN 1
AC
IN 2
DC
AC
DC
IN 1
AC
IN 2
DC
AC
DC
IN 1
AC
IN 2
DC
AC
DC
IN 1
AC
IN 2
DC
Use of three or more identical power supplies in parallel, which are allowed to be connected in parallel for higher output currents, to provide continued operation
OUT OUT OUT OUT following most failures in a single power supply. All power supply outputs should be
Load
-
Load
isolated from each other by utilizing diodes or other switching arrangements. E.g.: To achieve a 40A redundant system, five 10A power supplies are needed in a N+1 redundant system.
Ensure that the utilized power supplies are allowed to be connected in parallel to increase the output power.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
2/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
1.
I
NTENDED
U
SE
This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control, monitoring and measurement equipment or the like. Do not use this device in equipment where malfunction may cause severe personal injury or threaten human life.
The redundancy module can be used with any type of power supply as long as the maximum output current ratings are not exceeded. It is suitable for power supplies with continuous overload current as well as any kind of intermittent
(Hiccup) overload behavior.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.
2.
I
NSTALLATION
I
NSTRUCTIONS
WARNING
Risk of electrical shock, fire, personal injury or death.
- Turn power off before working on the device and protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- 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.
- Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.
Obey the following installation instructions:
This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for inspection.
Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.
Do not ground or earth the positive output pole which could prevent redundancy in case of a ground failure. Ground the negative output pole, when needed.
Use only power supplies with a negligible output ripple voltage in the low frequency range between 50Hz and 10kHz when used in marine applications according to the GL regulations.
Install the device onto a DIN rail according to EN 60715 with the input terminals on the top of the device.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire enter the terminal connection.
Unused screw terminals should be securely tightened.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against spilled liquids.
The input must be powered from a PELV or SELV source or an “Isolated Secondary Circuit” in order to maintain a SELV or PELV output.
Do not energize with wrong input polarity. Device might get damaged.
The device is designed as “Class of Protection III” equipment according to IEC 61140.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid!
The device is designed for altitudes up to 5000m (16400ft). Above 2000m (6560ft) a reduction in output current is required.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side.
Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded with less than 50%, the 5mm can be reduced to zero.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
3/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II Category 3 (Zone 2) environments.
Hazardous Location classification: ATEX: EPS 11 ATEX 1 312 X, II 3G EX ec IIC T4 Gc.
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment.
Do not disconnect the device unless power has been switched off or the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils the requirements of the EN 60079-0. The device is suitable for use in Class I Division 2 Groups A, B, C, D locations.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
4/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
3.
I
NPUT AND
O
UTPUT
C
HARACTERISTICS
Number of inputs
Number of outputs
Input voltage
Input voltage range
Voltage drop, input to output
Input current typ. typ. nom. nom.
2
1 nom. DC 12-28V ±25%
9-35Vdc
0.46V
0.56V
2x 0-10A
2x 10-16A
at 2x5A, see Fig. 3-1 at 2x10A, see Fig. 3-1
continuous for 5 seconds
Peak input current
Output current
Reverse current
Reverse voltage max. nom. nom. max. max. max.
1000A
20A
20-32A
26A *)
4mA
45Vdc for maximal 10ms per input continuous for 5 seconds at continuous overload or short circuit per input, -40°C to +70°C voltage applied to the output, continuously allowed
*) Ensure that the continuous output current does not exceed 26A. Check the short-circuit current of the power sources and if the power source can deliver more than 26A together, use an appropriate fuse on the output.
Fig. 3-1 Input to output voltage drop Fig. 3-2 Test setup for voltage drop measurements
Voltage Drop, typ.
600mV
500mV
400mV
300mV
200mV
100mV
Output:
Input:
0
0
5A
2x2.5A
A
Input, Output Current
10A
2x5A
B
A... 25°C
B... 60°C
15A
2x7.5A
20A
2x10A
PIC120.241x or
PIC240.241x
24V, 5A or
24V, 10A
+
-
PIC120.241x or
PIC240.241x
24V, 5A or
24V, 10A
+
-
I
1
= I
2
I
1
A
V
U
1
I
2
A
V U
2
U
1
= U
2
PIRD20.241
Input 1
Input 2
Output
Output
I
OUT
A
U
OUT
V
Variable
0-20A
Voltage Drop = U
1
U
OUT
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
5/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
4.
P
OWER
L
OSSES
Power losses typ. typ.
Fig. 4-1 Power losses at 25°C
0W at no load (stand-by)
4.6W at 24V and 2x5A input current
11.2W at 24V and 2x10A input current
Power Losses, typ.
12W
10
8
6
4
2
Output Current
0
0 5 10 15 20A
5.
L
IFETIME
E
XPECTANCY AND
MTBF
The redundancy module has two input channels which are completely independent from each other. The dual input redundancy module can be considered as two single redundancy modules combined together in one housing. The only common point is the circuit trace that ties the two separate circuits together at the output.
The MTBF figures below are for the entire dual input module. If the MTBF number of only one path is needed, simply double the value from the table.
Input / output current conditions
Lifetime expectancy *)
MTBF **) SN 29500, IEC 61709
MTBF **) MIL HDBK 217F min. min.
N+1
Redundancy
Input: 2x10A
Output: 20A
113 000h
320 000h *)
7 837 000h
19 408 000h
1 774 000h
2 709 000h
3 675 000h
5 620 000h
1+1
Redundancy
Input: 2x5A
Output: 10A
309 000h
874 000h
*)
*)
20 310 000h
46 382 000h
1 817 000h
2 782 000h
3 707 000h
5 674 000h at 24V and 40°C at 24V and 25°C at 24V 40°C at 24V 25°C at 24Vand 40°C (Ground Fixed GF40) at 24Vand 25°C (Ground Fixed GF25) at 24Vand 40°C (Ground Benign GB40) at 24Vand 25°C (Ground Benign GB25)
*) The Lifetime expectancy 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 expectancy 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 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for M ean T ime B etween F ailure, 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 e.g. 1 000 000h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit has been running for 50 000h or only for 100h.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
6/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
6.
T
ERMINALS AND
W
IRING
The terminals are IP20 finger safe constructed and suitable for field- and factory wiring.
Type
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter
Wire stripping length
Screwdriver
Recommended tightening torque screw terminals max. 6mm 2 max. 4mm 2
AWG20-10
2.8mm (including ferrules)
7mm / 0.28inch
3.5mm slotted or cross-head No 2
1Nm, 9lb.in
Instructions: a) Use appropriate copper cables that are designed for minimum operating temperatures of:
75°C for ambient up to 55°C minimum and
90°C for ambient up to 70°C minimum. b) Follow national installation codes and installation regulations! c) Ensure that all strands of a stranded wire enter the terminal connection! d) Unused terminal compartments should be securely tightened. e) Ferrules are allowed.
7.
F
UNCTIONAL
D
IAGRAM
Fig. 7-1 Functional diagram
+
Input 1
-
+
Input 2
-
Surge
Protection
Surge
Protection
Surge
Protection
+
Output
+
-
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
7/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
8.
F
RONT
S
IDE AND
U
SER
E
LEMENTS
Fig. 8-1 Front side
A Output terminals
Two identical (+) poles.
B Input terminals for input 1 and input 2
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
8/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
9.
EMC
The redundancy module is suitable for applications in industrial environment as well as in residential, commercial and light industry environment without any restrictions.
EMC Immunity
Electrostatic discharge
Electromagnetic RF field
Fast transients (Burst)
Surge voltage on input lines
According to generic standards: EN 61000-6-1 and EN 61000-6-2
EN 61000-4-2 Contact discharge on indirect coupling plane
8kV
Air discharge
EN 61000-4-3 80MHz-2.7GHz
15kV
20V/m
EN 61000-4-4
EN 61000-4-5
Input lines
Output lines
+
+/ -
-
earthed DIN rail
Surge voltage on output lines EN 61000-4-5 + -
+/ earthed DIN rail
EN 61000-4-6 0.15-80MHz Conducted disturbance on input lines
Conducted disturbance on output lines
EN 61000-4-6 0.15-80MHz
2kV
2kV
500V
1kV
500V
1kV
20V
20V
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Power-frequency magnetic field 1)
EN 61000-4-8 50Hz 30A/m Criterion A
Criterions:
A: Redundancy module shows normal operation behavior within the defined limits.
Notes:
1) A test is not applicable according to EN 61000-6-2, since the device does not contain components susceptible to magnetic fields, e.g. hall elements, electrodynamic microphones, etc.
EMC Emission 4)
Conducted emission input lines
Conducted emission output lines
According to generic standards: EN 61000-6-3 and EN 61000-6-4
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 limits for DC power ports according EN
61000-6-3 fulfilled 2) 3) limits for DC power ports according EN
61000-6-3 fulfilled 2) 3)
Radiated emission EN 55011, EN 55032 Class B 3)
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.
Notes:
2) For information only, not mandatory for EN 61000-6-3.
3) Provided, that power sources connected on the inputs fulfill the requirements too.
4) The redundancy module incorporates only diodes and no RF-generating circuits and does not contribute to EMC emissions.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
9/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
10.
E
NVIRONMENT
Operational temperature 1) -40°C to +70°C (-40°F to 158°F)
Output de-rating 0.5A/°C
Storage temperature
Humidity 2)
Vibration sinusoidal 3)
-40 to +85°C (-40°F to 185°F)
5 to 95% r.H.
2-17.8Hz: ±1.6mm
17.8-500Hz: 2g
2 hours / axis
Shock 3) 30g 6ms, 20g 11ms
3 bumps / direction
18 bumps in total
Reduce output power above +60°C
+55 to +70°C (140°F to 158°F), see Fig. 10-1
For storage and transportation
IEC 60068-2-30
IEC 60068-2-6
IEC 60068-2-27
Altitude 0 to 2000m (0 to 6 560ft)
2000 to 6000m (6 560 to 20 000ft)
1.25A/1000m or 5°C/1000m not applicable
Without any restrictions
Reduce output power or ambient
> 2000m (6500ft), see Fig. 10-2
Altitude derating
Over-voltage category The concept of the overvoltage category is used for equipment energized directly from the low voltage mains (IEC 60664-1 §4.3.3.2.1).
IEC 62103, EN 62477-1, not conductive Degree of pollution 2
1) Operational temperature is the same as the ambient temperature and is defined as the air temperature 2cm below the unit.
2) Do not energize while condensation is present
3) Tested in combination with DIN rails according to EN 60715 with a height of 15mm and a thickness of 1.3mm and standard mounting orientation.
Fig. 10-1 Output current vs. ambient temp. Fig. 10-2 Output current vs. altitude
Allowed Output Current
30A
25
20
15 at overload / short circuit normal mode
10
5
0
-40
Ambient Temperature
0 20 40 55 70°C
Allowed Output Current
30A overload / short circuit
25
20 normal mode
15
10
5
0
0
A... Tamb < 55°C
B... Tamb < 70°C
2000 4000
B
A
B
Altitude
6000m
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
10/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
11.
P
ROTECTION
F
EATURES
Output over-current protection not included
Reverse input polarity protection not included
Degree of protection IP 20
Over-temperature protection
Input transient protection
Output transient protection
Internal input fuse not included included included not included
Wrong input polarity might damage the device.
EN/IEC 60529
see chapter 9 for details and values see chapter 9 for details and values
12.
S
AFETY
F
EATURES
Input / output separation
Safety level of output voltage
Class of protection no galvanic separation Schottky diode between input and output
The output voltage is regarded to be SELV (EN 60950-1) or PELV (EN 60204-1, EN
62477-1, IEC 60364-4-41) if the input voltage fulfil the requirements for a SELV source or PELV source.
III
13.
D
IELECTRIC
S
TRENGTH
Not applicable (plastic housing and no galvanic isolation)
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
11/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
14.
A
PPROVED
, F
ULFILLED OR
T
ESTED
S
TANDARDS
UL 508
IEC 60950-1
UL 60950-1
ATEX
IECEx
Class I Div 2
VDMA 24364
UL Certificate
Listed equipment for category NMTR - Industrial Control
Equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
General safety requirements for Information Technology
Equipment (ITE)
UL Certificate
Recognized component for category QQGQ - Information
Technology Equipment (ITE)
Applicable for US and Canada
E-File: E137006
Agency Certificate (Bureau Veritas)
EN 60079-0 Explosive atmospheres - General requirements
EN 60079-7 Equipment protection by type of protection "e"
Certificate: EPS 11 ATEX 1 312 X
Temperature Code: T4
Type of Protection: ec
IECEx Certificate
IEC 60079-0 Explosive atmospheres - General requirements
IEC 60079-7 Equipment protection by type of protection "e"
Certificate: IECEx EPS 12.0032X
Temperature Code: T4
Type of Protection: ec
CSA Certificate
Power Supplies for Hazardous Location
Applicable for Canada and US
CSA Class: 5318-01 (Canada), 5318-81 (USA)
Temperature Code: T4
Groups: A, B, C and D
Paint Wetting Impairment Substances Test (or LABS-Test)
Tested for Zone 2 and test class C1 according to VDMA 24364-C1-
L/W for solvents and water-based paints
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
12/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
15.
R
EGULATORY
P
RODUCT
C
OMPLIANCE
EU Declaration of
Conformity
REACH Directive
WEEE Directive
KC Korean Certificate
EAC TR Registration
The CE mark indicates conformance with the
- EMC directive
- ATEX directive
- RoHS directive
Manufacturer's Statement
EU-Directive regarding the Registration, Evaluation, Authorization and Restriction of Chemicals
Manufacturer's Statement
EU-Regulation on Waste Electrical and Electronic Equipment
Registered in Germany as business to business (B2B) products.
KC Registration
Korean registration of Broadcasting and Communication
Equipment
Registered under Clause 3, Article 58-2 of Radio Waves Act.
EAC Certificate
EAC EurAsian Conformity - Registration Russia, Kazakhstan and
Belarus
8504408200, 8504409000
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
13/17
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE PIANO-Series
16.
P
HYSICAL
D
IMENSIONS AND
W
EIGHT
Width
Height
Depth
39mm 1.54’’
124mm 4.88’’
124mm 4.88’’
The DIN rail depth must be added to the unit depth to calculate the total required installation depth.
280g / 0.62lb Weight
DIN rail Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Plastic Material of Housing Flame retardant Polycarbonate (PC) - UL94-V0
Vicat softening temperature specified with 149°C according to ASTM D1525
Installation Clearances
Fig. 16-1 Front view Fig. 16-2 Side view
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
14/17
PIANO-Series
17.
A
PPLICATION
N
OTES
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE
17.1.
U
SING
O
NLY
O
NE
I
NPUT
I
NSTEAD OF
B
OTH
C
HANNELS
Using only one input instead of both is allowed up to a nominal input current of 20A at max. +55°C ambient temperature.
However, it is always recommended to connect both input path in parallel for reduced power losses and voltage drop.
In cases when this is not possible, the following values can be expected:
Voltage drop, input to output
Power losses typ. typ. typ. typ.
585mV
645mV
0W
5.85W
12.9W
at 1x10A, 25°C, see Fig. 17-1 at 1x20A, 25°C, see Fig. 17-1
at 0A, 25°C at 10A, 25°C at 20A, 25°C
Fig. 17-1 Input to output voltage drop when only one input is used
Fig. 17-2 Test setup for voltage drop measurements
Voltage Drop, typ.
700mV
600mV
500mV
400mV
300mV
200mV
0 5A
A... 25°C
B... 60°C
A
B
Input, Output Current
10A 15A 20A
PIC480.241
24V, 20A
+
-
I
1
A
V U
1
PIRD20.241
Input 1
Input 2 must not used
Input 2
Output
Output
I
OUT
A
U
OUT
V
Load,
0-20A
Voltage Drop = U
1
U
OUT
17.2.
R
ECOMMENDATIONS FOR
R
EDUNDANCY
Recommendations for the configuration of redundant power systems:
Use three-phase power supplies to gain functional safety if one phase fails.
When single-phase power supplies are utilized connect them to different phases or mains circuits if possible.
Use separate input fuses for each power supply.
Set the power supply in “Parallel-Use” mode if this feature is available
It is desirable to set the output voltages of all power supplies to the same value.
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
15/17
PIANO-Series
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE
17.3.
I
NDUCTIVE AND
C
APACITIVE
L
OADS
The unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.
17.4.
U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the redundancy module 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 redundancy module.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure:
Load:
Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
24V, 16A; (=80%) load is placed outside the box
Input: 2x 24Vdc, 8A
Temperature inside enclosure: 42.4°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 23.1°C
Temperature rise: 19.3K
17.5.
E
XAMPLE
: R
EDUNDANCY FOR
C
ONTROLS
The example shows a cost effective solution to get redundant power for a PLC or controller system.
In many cases, two power supplies are used; one for the demanding loads and another one for the controls and sensitive loads. The power supply for the demanding loads can be used as a redundant source to supply the controls.
Traditional approach:
PS1 Load
Improved approach:
PS1 Load
PIRD20
PS2 PLC PS2 PLC
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
16/17
PIANO-Series
PIRD20.241
DC 12-28V, 20A, D
UAL
I
NPUT
R
EDUNDANCY
M
ODULE
17.6.
E
XAMPLE
: 1+1 R
EDUNDANCY UP TO
10A
1+1 Redundancy up to 10A requires two 10A power supplies and one PIRD20.241 redundancy module.
Fig. 17-3 Wiring diagram, 1+1 Redundancy, 10A output current
Failure
Monitor
+ + - -
24-28V
DC-OK
DC-
OK
PIC240.24x
Power Supply
L N PE
- + +
PIRD20.241
Redundancy
Module
OUT +
+ + - -
24-28V
DC-OK
DC-
OK
PIC240.24x
Power Supply
L N PE
I
L
N
PE
Note: Use separate mains systems for each power supply whenever it is possible
I
24V, 10A
Load
17.7.
E
XAMPLE
: 1+1 R
EDUNDANCY UP TO
20A
1+1 Redundancy up to 20A requires two 20A power supplies and two PIRD20.241 redundancy modules.
Fig. 17-4 Wiring diagram, 1+1 Redundancy, 20A output current optional for reduced power losses
Failure
Monitor
+ + - -
24-28V
DC-OK
DC-
OK
PIC480.24x
Power Supply
L N PE
- + +
IN
1
IN
2
PIRD20.241
Redundancy
Module
OUT +
+ + - -
24-28V
DC-OK
DC-
OK
PIC480.24x
Power Supply
L N PE
I I
L
N
PE
Note: Use separate mains systems for each power supply whenever it is possible
- + +
IN
1
IN
2
PIRD20.241
Redundancy
Module
OUT +
24V, 20A
Load
Jul. 2021 / Rev. 2.2 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted www.pulspower.com Phone +49 89 9278 0 Germany
17/17
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