PSR-SCF-24UC [PHOENIX]
Safe coupling relay;
| 型号： | PSR-SCF-24UC |
| 厂家： | 
PHOENIX CONTACT |
| 描述： | Safe coupling relay |
| 文件： | 总18页 (文件大小：316K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSR-...-24UC/URM/4X1/2X2
Safe coupling relay
Data sheet
102381_en_04
© PHOENIX CONTACT 2018-04-06
1
Description
Intended Use
Control
The safe coupling relay is used for power adaptation and
electrical isolation in high and low-demand applications.
–
–
Single or two channel
Automatic start
The device couples digital signals from failsafe controllers.
Alternatively, when used in combination with a suitable
basic device the device provides additional output contacts.
Achievable safety integrity
–
Suitable up to category 1, PL c (EN ISO 13849-1),
SILCL 1 (EN 62061), SIL 1 (IEC 61508)
The coupling relay safely interrupts circuits.
Possible signal generators
Additional features
–
–
Failsafe controllers
Safety relays
–
Safe readback due to force-guided signal contact in
accordance with EN 50205
Easy proof test according to IEC 61508 due to forcibly
guided signal contact
–
Contact type
–
–
Either fixed screw or spring-cage terminal block
40 mm housing width
–
–
4 undelayed enabling current paths
2 confirmation current paths without delay
The enabling current paths drop out without delay according
to stop category 0 (EN 60204-1).
Approvals
WARNING: Risk of electric shock
Observe the safety regulations and installation notes in the corresponding section.
Make sure you always use the latest documentation.
It can be downloaded from the product at phoenixcontact.net/products.
This document is valid for the products listed in the “Ordering data”.
This document meets the same requirements as the original operating instructions with respect to the
contents.
PSR-...-24UC/URM/4X1/2X2
2
Table of contents
1
Description .............................................................................................................................. 1
Table of contents..................................................................................................................... 2
Ordering data .......................................................................................................................... 3
Technical data ......................................................................................................................... 3
Notes regarding documentation .............................................................................................. 7
Safety regulations and installation notes.................................................................................. 8
Function description .............................................................................................................. 10
Function and time diagrams .................................................................................................. 10
Basic circuit diagram ............................................................................................................. 11
Load curve............................................................................................................................. 11
Operating and indication elements ........................................................................................ 12
Mounting and removing......................................................................................................... 13
Wiring .................................................................................................................................... 13
Startup................................................................................................................................... 14
Calculating the power dissipation .......................................................................................... 14
Proof test ............................................................................................................................... 14
Application examples ............................................................................................................ 15
Attachment ............................................................................................................................ 17
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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3
Ordering data
Description
Type
Order No.
Pcs./Pkt.
Safe coupling relay with force-guided contacts, 4 N/O
contacts, 2 N/C contacts, fixed screw terminal block,
width: 40 mm
PSR-SCF- 24UC/URM/4X1/
2X2
2981444
1
Safe coupling relay with force-guided contacts, 4 N/O
contacts, 2 N/C contacts, fixed spring-cage terminal
block, width: 40 mm
PSR-SPF- 24UC/URM/4X1/
2X2
2981457
1
4
Technical data
Hardware/firmware version
HW/FW
≥ 04/--
The technical data and safety characteristics are valid as of the specified HW/FW version.
Input data
Rated control circuit supply voltage US
Rated control supply current IS
Power consumption at US
Typical starting time with Us
Typical release time with Us
Recovery time
24 V AC/DC -20 % / +10 %
typ. 52 mA
typ. 1.25 W
typ. 10 ms (when controlled via A1)
typ. 10 ms (when controlled via A1)
< 500 ms
Maximum switching frequency
Operating voltage display
0.5 Hz
1 x green LED
Output data
Contact type
4 enabling current paths
2 confirmation current paths
Contact material
AgSnO2
Minimum switching voltage
Maximum switching voltage
Limiting continuous current
Maximum inrush current
Inrush current, minimum
Sq. Total current
5 V AC/DC
230 V AC/DC (Observe the load curve)
6 A
6 A
10 mA
72 A2
2
ITH2 = I12 + I22 + ... + IN
Interrupting rating (ohmic load) max.
For additional values, see load curve
Maximum interrupting rating (inductive load)
48 W (N/O contact, 24 V DC, τ = 40 ms)
40 W (N/O contact, 48 V DC, τ = 40 ms)
36 W (N/O contact, 60 V DC, τ = 40 ms)
35 W (N/O contact, 110 V DC, τ = 40 ms)
33 W (N/O contact, 220 V DC, τ = 40 ms)
Switching capacity
min. 50 mW
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PSR-...-24UC/URM/4X1/2X2
Output data
Mechanical service life
10 x 106 cycles
Switching capacity according to IEC 60947-5-1
5 A (24 V (DC13))
5 A (250 V (AC15))
Output fuse
10 A gL/gG (N/O contact)
4 A gL/gG (N/O contact, for low-demand applications)
6 A gL/gG (N/C contact)
General data
Relay type
Electromechanical relay with forcibly guided contacts in
accordance with EN 50205
Nominal operating mode
Degree of protection
Min. degree of protection of inst. location
Mounting type
Mounting position
Weight
100% operating factor
IP20
IP54
DIN rail mounting
vertical or horizontal
127 g
Type of housing
PBT green
Air clearances and creepage distances between the
power circuits
DIN EN 50178
Rated insulation voltage
250 V
Rated surge voltage/insulation
Safe isolation, reinforced insulation 6 kV between input circuit
(A1/A2) and all output current paths
Basic insulation 4 kV between all output current paths
See “Insulation coordination”
Degree of pollution
2
Overvoltage category
III
Maximum power dissipation for nominal condition
Note on power dissipation
30.31 W (at UB = 26.4 V DC, IL² = 72 A²)
See “Calculating the power dissipation”
Dimensions
Screw connection
Spring-cage connection
W x H x D
40 x 111 x 55 mm
40 x 114.5 x 50.1 mm
Connection data
Screw connection
0.2 mm² ... 2.5 mm²
0.2 mm² ... 2.5 mm²
24 ... 12
Spring-cage connection
0.2 mm² ... 1.5 mm²
0.2 mm² ... 1.5 mm²
24 ... 16
Conductor cross section, solid
Conductor cross section, flexible
Conductor cross section AWG/kcmil
Stripping length
7 mm
8 mm
Screw thread
M3
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PSR-...-24UC/URM/4X1/2X2
Ambient conditions
Ambient temperature (operation)
Ambient temperature (storage/transport)
Max. permissible relative humidity (operation)
Max. permissible humidity (storage/transport)
Maximum altitude
-20 °C ... 55 °C
-40 °C ... 85 °C
75 % (on average, 85% infrequently, non-condensing)
75 % (on average, 85% infrequently, non-condensing)
≤ 2000 m (Above sea level)
Information on operating height
See the “Using PSR devices at altitudes greater than
2000 m above sea level” section
Shock
15g (In the event of stress caused by shock, contact reactions
are possible for up to 2 ms.)
Vibration (operation)
10 Hz ...150 Hz, 2g (In the event of stress caused by vibration,
contact reactions are possible for up to 2 ms.)
Conformance/Approvals
Conformance
CE-compliant
The full EC Declaration of Conformity can be downloaded for the product at phoenixcontact.net/products.
Approvals
Safety data
Stop category according to IEC 60204
0
Safety parameters for IEC 61508 - High demand
Equipment type
Type A
HFT
SIL
PFHD
0
1
6.00 x 10-7 (3 A AC15; 8760 switching cycles/year; 10 % of the
total SIL)
6.00 x 10-7 (3 A DC13; 8760 switching cycles/year; 10% of the
total SIL)
2.40 x 10-7 (6 A AC1; 8760 switching cycles/year; 10% of the
total SIL)
Demand rate
Proof test interval
Duration of use
< 12 Months
240 Months
240 Months
Safety parameters for IEC 61508 - Low demand
Equipment type
HFT
Type A
0
SIL
PFDavg
Proof test interval
Duration of use
1
4.05 x 10-3
56 Months
240 Months
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PSR-...-24UC/URM/4X1/2X2
Safety characteristic data according to EN ISO 13849
Category
1
Performance level
Duration of use
c
240 Months
Safety parameters for EN 62061
SILCL
1
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5
Notes regarding documentation
5.1
Explanation of symbols used and signal words
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety
measures that follow this symbol to avoid possible injury or death.
There are three different categories of personal injury that are indicated with a signal word.
DANGER
WARNING
CAUTION
This indicates a hazardous situation which, if not avoided, will result in death or serious injury.
This indicates a hazardous situation which, if not avoided, could result in death or serious injury.
This indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
This symbol together with the signal word NOTE and the accompanying text alert the reader to a situation which
may cause damage or malfunction to the device, hardware/software, or surrounding property.
This symbol and the accompanying text provide the reader with additional information or refer to detailed
sources of information.
Qualified personnel:
5.2
Validity
Qualified personnel are people who, because of their
education, experience, and instruction and their knowledge
of relevant standards, regulations, accident prevention, and
service conditions, have been authorized by those
responsible for the safety of the system to carry out any
required operations and who are able to recognize and
avoid any possible dangers.
This data sheet is valid for the described product(s) from the
hardware/firmware version specified in the technical data.
5.3
Target group
This data sheet is therefore aimed at:
–
–
Qualified personnel who plan and design safety
equipment for machines and systems and are familiar
with regulations governing occupational safety and
accident prevention.
Qualified personnel who install and operate safety
equipment in machines and systems.
Requirements:
Knowledge of the following topics is required:
–
–
–
Handling safety components
Valid EMC regulations
Valid regulations governing occupational safety and
accident prevention
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PSR-...-24UC/URM/4X1/2X2
6
Safety regulations and installation notes
WARNING: Death, serious personal injury or damage to equipment
Depending on the application, incorrect handling of the device may pose serious risks for the user or cause
damage to equipment.
•
Observe all the safety notes and warning instructions provided in this chapter and elsewhere in this
document.
In operation
General
During operation, parts of electrical switching devices carry
•
Observe the safety regulations of electrical engineering
and industrial safety and liability associations.
hazardous voltages.
•
Protective covers must not be removed when operating
electrical switching devices.
Disregarding these safety regulations may result in death,
serious personal injury or damage to equipment.
For emergency stop applications, automatic startup of the
machine can pose serious risks for the user.
Direct/indirect contact
•
The machine must be prevented from restarting
automatically by a higher-level controller.
•
Protection against direct and indirect contact according
to VDE 0100 Part 410 must be ensured for all
components connected to the system.
Inductive loads can lead to welded relay contacts.
•
Connect a suitable and effective protective circuit to
inductive loads.
In the event of an error, parasitic voltages must not occur
(single-fault tolerance).
•
Implement the protective circuit parallel to the load and
not parallel to the switch contact.
Power supply units for 24 V supply
Magnetic fields can influence the device. The magnetic field
•
Only use power supply units with safe isolation
strength of the environment must not exceed 30 A/m.
and SELV/PELV according to EN 50178/VDE 0160.
•
Do not use the device in the vicinity of strong magnetic
fields (e.g., caused by transformers or magnetic iron).
•
•
Protect the 24 V area with a suitable external fuse.
Make sure that the power supply unit is able to supply
four times the nominal current of the external fuse, to
ensure that it trips in the event of an error.
Noise emission may occur when operating relay modules.
Wireless reception may be disrupted in residential areas.
•
Make sure that the output voltage of the voltage supply
The device is a Class A product.
does not exceed 32 V even in the event of error.
•
Observe the requirements for noise emission for
electrical and electronic equipment (EN 61000-6-4).
Startup, mounting, and modifications
•
Implement appropriate precautions against noise
emission.
Startup, mounting, modifications, and upgrades may only be
carried out by an electrically skilled person.
•
•
Before working on the device, disconnect the power.
Carry out wiring according to the application. Refer to
the “Application examples” section for this.
Reliable operation is only ensured if the device is installed in
housing protected from dust and humidity.
•
Install the device in housing protected from dust and
humidity (min. IP54).
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Risk assessment, validation and function test
Faulty devices
The devices may be damaged following an error. Correct
operation can no longer be ensured.
•
Before using the device, perform a risk assessment on
the machine or system.
•
In the event of an error, replace the device.
•
•
Validate your entire safety system.
Carry out a new validation every time you make a
safety-related modification.
Only the manufacturer or their authorized representative
may perform the following activities. Otherwise the warranty
is invalidated.
•
Perform a function test on a regular basis.
–
–
Repairs to the device
Opening the housing
Achievable safety integrity
Functional safety is guaranteed for the device as a single
component. However, this does not guarantee functional
safety for the entire machine or system. In order to achieve
the desired safety level for the entire machine or system,
define the safety requirements for the machine or system as
well as how to implement them from both a technological
and organizational perspective.
Taking out of service and disposal
•
Dispose of the device in accordance with environmental
regulations.
Make sure that the device can never be reused.
•
6.1
Safety of machines or systems
Draw up and implement a safety concept
The machine or system manufacturer and the operator are
responsible for the safety of the machine or system and the
application in which the machine or system is used. In order
to use the device described in this document, you must have
drawn up an appropriate safety concept for your machine or
system. This includes a risk assessment in accordance with
the directives and standards specified in the EC Declaration
of Conformity, as well as other standards.
The EC Declaration of Conformity can be
downloaded for the product at
phoenixcontact.net/products.
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PSR-...-24UC/URM/4X1/2X2
7
Function description
8
Function and time diagrams
7.1
One or two-channel activation
8.1
Time diagram for automatic start
The external enable signal of the failsafe controller or basic
device is switched at A1.
US
The external enable signal can also be switched at A2 as an
option.
NO
NC
7.2
Automatic start
The device starts automatically once it has received the
external enable signal.
Figure 1
Time diagram for automatic start
Key:
7.3
Safe shutdown
Once the external enable signal has been deactivated, the
enabling current paths open and the contacts enter the safe
state.
When the enabling current paths are open, the device is in
the safe state.
US
NO
Control/enable signal
Undelayed enabling current paths
A1/A2
13/14 ...
43/44
NC
Confirmation current paths, without 51/52,
delay
61/62
The confirmation current paths close.
7.4
Diagnostics / proof test
The confirmation current paths transmit safety-related
status information.
Due to the forced guidance of the contacts, the confirmation
current paths close when the enabling current paths open.
If required by the application, read one or more confirmation
current paths back to the failsafe controller or the basic
device.
The repeat testing required by standards can be carried out
in two ways:
1. Continuity test for the confirmation current path
2. Evaluation of the failsafe controller via readback of the
confirmation current path
See “Proof test”.
See section “Feedback circuit connection
versions”.
If several devices are used, the N/C contacts of the
confirmation current paths can be connected in series.
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PSR-...-24UC/URM/4X1/2X2
9
Basic circuit diagram
Basic insulation
A1 A1
13 23 33 43 51 61
(rated surge voltage of 4 kV)
A mixture of SELV and PELV is strictly
prohibited. Only switch 230 V AC at one of the
enable contacts if the adjacent contact carries
the same potential.
PWR
K1
24V UC
Safe isolation/reinforced insulation
(rated surge voltage of 6 kV)
A2 A2
14 24 34 44 52 62
Reinforced insulation (e.g., thanks to greater
air clearances and creepage distances
between conductive paths) is designed for
one overvoltage category higher than basic
insulation. This means that SELV circuits of
U 25 V AC or U 60 V DC and circuits with
higher voltages can be mixed.
Figure 2
Block diagram
Key:
A1
A2
24 V AC/DC control
0 V control
13/14 ... 43/44
51/52, 61/62
Undelayed enabling current paths
Confirmation current paths, without
delay
10 Load curve
10.1 Ohmic load
9.1
Insulation coordination
1000
500
A1/
A2
13/14 23/24 33/34 43/44 51/52 61/62
200
100
50
A1/
A2
-
6 kV 6 kV 6 kV 6 kV 6 kV 6 kV
ST
-
ST
ST
ST
ST
ST
13/14 -
23/24 -
33/34 -
43/44 -
51/52 -
61/62 -
4 kV 4 kV 4 kV 4 kV 4 kV
BI
-
BI
BI
BI
BI
20
10
-
-
-
-
-
4 kV 4 kV 4 kV 4 kV
BI
-
BI
BI
BI
0,1
0,2
0,5
1
2
5
10
IDC [A]
-
-
-
-
4 kV 4 kV 4 kV
BI
-
BI
BI
-
-
-
4 kV 4 kV
BI
-
Figure 3
Relay load curve - ohmic load
BI
4 kV
BI
-
-
-
-
Key:
BI
ST
Basic insulation
Safe isolation
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PSR-...-24UC/URM/4X1/2X2
11 Operating and indication elements
11.1 Connection versions
1
2
3
Fixed screw terminal block
Fixed spring-cage terminal block
Snap-on foot for DIN rail mounting
PSR-SCF-...
PSR-SPF-...
AWG 24-16
AWG 24-12
0,2-2,5 mm 2
7 mm
0,2-1,5 mm 2
2
0,5-0,6 Nm
5-7 lb In
2
A
2
8 mm
1
A
A
A1
52
1
51
24
23
14
13
62
62
44
43
34
33
52
51
24
23
14
13
62
61
44
43
34
33
3
Figure 4
Connection versions
11.2 Connection assignment
A1
A2
24 V AC/DC control
0 V control
A1 A1 A2 A2
Power LED (green)
13/14
23/24
33/34
43/44
51/52
61/62
Undelayed enabling current paths
13 14 23 24 51 52
33 34 43 44 61 62
Confirmation current paths, without delay
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PSR-...-24UC/URM/4X1/2X2
12 Mounting and removing
•
Mount the device on a 35 mm DIN rail according to
For compliance with UL approval, use copper
wire that is approved for > 75°C.
EN 60715.
•
To remove the device, use a screwdriver to release the
snap-on foot.
13.1 Signal generator connection versions
•
Connect suitable signal generators to A1/A2.
1
2
SIS / FS-PLC
SIS / FS-PLC
24V
GND
24V
GND
0V DO DI
0V DO+ DO-
A1
A2
A1
A2
Figure 5
Mounting and removing
13 Wiring
Figure 8
Signal generator connection versions
•
Connect the cables to the connection terminal blocks
using a screwdriver.
1
2
Single-channel control via failsafe controller
Two-channel control via failsafe controller
PSR-SCF-...
13.2 Feedback circuit connection versions
B
To carry out the optional diagnostic function via the
confirmation current path, proceed as follows:
AWG 24-12
0,2-2,5 mm2
52
51
24
•
Read the confirmation current path back to one of the
digital inputs of the failsafe controller.
23
14
13
62
61
44
7 mm
43
34
33
•
Place the relevant N/C contacts in the confirmation
current path to the digital input of the failsafe controller
to monitor external contactors or extension devices with
force-guided contacts.
A
0,5-0,6 Nm
5-7 lb In
Figure 6
Connecting the cables for PSR-SCF-...
(screw terminal block)
1
2
SIS / FS-PLC
SIS / FS-PLC
24V
GND
24V
GND
0V DO DI
0V DO DI
PSR-SPF-...
K1
A
AWG 24-16
2
NC
24V
NC
24V
0,2-1,5 mm
52
51
52
A
24
51
B
23
24
14
23
13
14
13
62
62
62
62
44
8 mm
43
44
43
34
33
34
33
Figure 9
Feedback circuit connection versions
1
2
Confirmation current path without monitored contact
extension
Confirmation current path with monitored contact
extension
Figure 7
Connecting the cables for PSR-SPF-...
(spring-cage terminal block)
NC Confirmation current path 51/52 or 61/62
It is recommended that ferrules are used to
connect stranded cables.
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14 Startup
16 Proof test
•
Provide the external enable signal (24 V AC/DC) of the
failsafe controller or the basic device at terminal block
A1.
To verify the device function, proceed according to one of
the following diagnostic options.
Enabling current paths 13/14 ... 43/44 close.
Confirmation current paths 51/52 and 61/62 open.
WARNING: Loss of functional safety due
to malfunction.
If the proof test contains errors, the device no
longer functions correctly.
15 Calculating the power dissipation
•
Replace the device.
The total power dissipation of the safety relay
is based on the input power dissipation and
the contact power dissipation for the same
and for different load currents.
16.1 Continuity test on confirmation current path
1. Deactivate A1.
2. Perform a continuity test for the confirmation current
path.
Expectation: Continuity can be measured.
Input power dissipation
²
PInput = UB / (US/IS)
16.2 Evaluation of the failsafe controller via
readback of the confirmation current path
Contact power dissipation
1. Deactivate A1.
With the same load currents:
2. Read the confirmation current path back into one of the
²
P
Contact = n IL 100 mΩ
digital inputs of the failsafe controller.
With different load currents:
Expectation: The failsafe controller receives a 24 V signal
via the confirmation current path.
²
²
²
P
Contact = (IL1 + IL2 + ... + ILn ) 100 mΩ
Total power dissipation
Total = PInput + PContact
therefore
P
²
²
PTotal = UB / (US/IS) + n IL 100 mΩ
or
²
²
²
²
PTotal = UB / (US/IS) + (IL1 + IL2 + ... + ILn ) 100 mΩ
Key:
P
Power dissipation in mW
UB Applied operating voltage
US Rated control circuit supply voltage
IS
n
IL
Rated control supply current
Number of enabling current paths used
Contact load current
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17 Application examples
17.1 High-demand application with failsafe controller
–
–
Single-channel control
Integration of the confirmation current path in the safe
controller
It is assumed that errors in the cable installation have
been eliminated
Suitable up to category 1, PL c (EN ISO 13849-1),
SILCL 1 (EN 62061), SIL 1 (IEC 61508)
24 V DC
SIS / FS-PLC
Logic
I/O
24V
GND
0V DO
DI
L
0 V
–
–
K1
NO
NC
WARNING: Loss of functional safety!
A1
The switch-on pulses sent by the controller
(light test) can lead to brief, unwanted
activation of the safety relay.
K1
PSR-URM
A2
M
•
Deactivate the light pulses/light tests.
K1
24 V DC
WARNING: Loss of functional safety due
to infiltration of process safety time!
N
If the evaluation of the confirmation current
path is not performed in high-demand
Figure 10
High-demand application with failsafe
controller
applications within the process safety time,
this may lead to a loss of functional safety.
Key:
•
Ensure that the evaluation of the
confirmation current path is performed in
high-demand applications within the
process safety time.
SIS /
FS-PLC
Safety Instrumented System /
failsafe controller
DI
Digital input
Digital output
Enabling current paths
Confirmation current paths 51/52, 61/62
Force-guided contactor
Cross-circuits in the cable installation can be
ruled out in the same electrical installation
space or through mechanically protected
cable installation.
DO
NO
NC
K1
13/14 ... 43/44
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PSR-...-24UC/URM/4X1/2X2
17.2 Low-demand application with failsafe controller
–
–
Single-channel control
It is assumed that errors in the cable installation have
been eliminated
Suitable up to category 1, PL c (EN ISO 13849-1),
SILCL 1 (EN 62061), SIL 1 (IEC 61508)
24 V DC
SIS / FS-PLC
Logic
I/O
24V
GND
0V DO
DI
L
0 V
–
WARNING: Loss of functional safety!
The switch-on pulses sent by the controller
(light test) can lead to brief, unwanted
activation of the safety relay.
NO
NC
A1
K1
•
Deactivate the light pulses/light tests.
PSR-URM
A2
M
Cross-circuits in the cable installation can be
ruled out in the same electrical installation
space or through mechanically protected
cable installation.
K1
N
The configuration path is not absolutely
necessary for low-demand applications.
However, readback is recommended so a
potential error in the switching operation can
be read into the controller. In any case, verify
proper function with regular proof tests.
Figure 11
Low-demand application with failsafe
controller
Key:
SIS /
FS-PLC
Safety Instrumented System /
failsafe controller
DI
Digital input
DO
NO
NC
K1
Digital output
Enabling current paths
Confirmation current paths 51/52, 61/62
Force-guided contactor
13/14 ... 43/44
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18 Attachment
18.1 Using PSR devices at altitudes greater than
2000 m above sea level
Altitude above sea Temperature derating factor
level
2000 m
2500 m
3000 m
3500 m
4000 m
4500 m
1
The following section describes the special
conditions for using PSR devices at altitudes
greater than 2000 m above sea level.
Observe the relevant device-specific data
(technical data, derating, etc.) according to
the product documentation for the individual
device.
0.953
0.906
0.859
0.813
0.766
Using the device at altitudes greater
Example calculation for 3000 m
The following calculation and the illustrated
than 2000 m above sea level up to max. 4500 m above
sea level is possible under the following conditions:
1. Limit the rated control circuit supply voltage (US) in
accordance with the table below. Observe the technical
data for the device.
derating curve are provided as examples.
Perform the actual calculation and offset the
derating curve for the device used according
to the technical data and the “Derating”
section.
US according to the
technical data for the
device
US when used at altitudes
greater than
2000 m above sea level
27 °C 0.906 24 °C
55 °C 0.906 49 °C
< 150 V AC/DC
US according to the
technical data for the device
still valid
> 150 V AC/DC
Limited to max.
150 V AC/DC
2. Limit the maximum switching voltage in accordance
with the table below. Observe the technical data for the
device.
Max. switching voltage
according to the
technical data for the
device
Max. switching voltage
when used at altitudes
greater than
2000 m above sea level
Figure 12
Example of a suspended derating curve (red)
< 150 V AC/DC
Max. switching voltage
according to the technical
data for the device still valid
> 150 V AC/DC
Limited to max.
150 V AC/DC
3. Reduce the maximum ambient temperature for
operation by the corresponding factor in accordance
with the table below.
4. If derating is specified, offset all the points of the
derating curve by the corresponding factor in
accordance with the table below.
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PSR-...-24UC/URM/4X1/2X2
18.2 Revision history
Version
03
04
Date
2017-06-15
2018-03-21
Contents
New edition of the data sheet
Chap. 4 Technical data: Safety parameters for IEC 61508 High demand and low
demand changed, Chap. 5 added, Safety note on direct/indirect contact added to
Chap. 6, Chap. 6.1 added
PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany
phoenixcontact.com
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