2700357 [PHOENIX]
Safety Relay, Momentary, 0.045A (Coil), 24VDC (Coil), 1080mW (Coil), 250VDC (Contact), DC Input, DIN-Rail Mount,;
| 型号： | 2700357 |
| 厂家： | 
PHOENIX CONTACT |
| 描述： | Safety Relay, Momentary, 0.045A (Coil), 24VDC (Coil), 1080mW (Coil), 250VDC (Contact), DC Input, DIN-Rail Mount, 继电器 |
| 文件： | 总14页 (文件大小：267K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSR-PS21
SIL coupling relay
Data sheet
106253_en_02
© PHOENIX CONTACT 2015-07-14
1
Description
Intended Use
Features
The PSR-PS21 SIL coupling relay can be used for power
adaptation and electrical isolation in high and low-demand
applications up to SIL 2 according to IEC 61508 as well as
EN 61511.
Using this module, circuits are interrupted in a safety-ori-
ented manner.
The safety relay is equipped with an enabling current path
and a confirmation current path that drop out without delay
according to stop category 0 in accordance with
EN 60204-1.
By filtering the controller test pulses, premature failure of the
safety relays is prevented.
–
–
–
–
SIL 2 coupling relay for safety-related switching off
Can be used in high and low-demand applications
Approved for Class I, Zone 2 applications
Easy proof test:
- Active error acknowledgment via A1
- Visually on the device
- Evaluation of the force-guided N/C contact
–
–
–
–
–
–
–
–
Integrated DCS test pulse filter
Low inrush current
1 undelayed enabling current path
1 undelayed confirmation current path
1 digital signal output
Fixed screw connection
6.8 mm housing width
Controller-specific Termination Carrier available on re-
quest
If an error occurs inside the module, the internal device input
impedance is affected. As such with compatible, safe sys-
tems, the test pulses sent from the controller may be dis-
rupted and the error can be reported back to the corre-
sponding digital output without any additional wiring effort.
WARNING: Risk of electric shock
Observe the safety instructions in the corresponding section!
Make sure you always use the latest documentation.
It can be downloaded from the product at phoenixcontact.net/products.
This data sheet is valid for all products listed on the following pages.
PSR-PS21
2
Table of contents
1
Description .............................................................................................................................. 1
Table of contents..................................................................................................................... 2
Ordering data .......................................................................................................................... 3
Technical data ......................................................................................................................... 3
Safety notes............................................................................................................................. 6
2
3
4
5
5.1
5.2
Installation in the Ex area (class I, zone 2).................................................................................. 7
Installation in areas with a danger of dust explosions .................................................................... 7
6
7
Basic circuit diagram ............................................................................................................... 8
Derating................................................................................................................................... 8
7.1
7.2
7.3
Vertical mounting position...................................................................................................... 8
Horizontal mounting position .................................................................................................. 8
Mounting position with module front at the top............................................................................. 9
8
9
Load curve............................................................................................................................... 9
Ohmic load ........................................................................................................................ 9
8.1
Operating and indication elements ........................................................................................ 10
9.1
9.2
Connection versions........................................................................................................... 10
Connection assignment....................................................................................................... 10
10
11
12
13
14
Mounting and connection ...................................................................................................... 11
Startup................................................................................................................................... 11
Proof test ............................................................................................................................... 11
Calculating the power dissipation .......................................................................................... 12
Application examples ............................................................................................................ 13
14.1 Application example 1 - SIL 2................................................................................................ 13
15
Revision history ..................................................................................................................... 14
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2
PSR-PS21
3
Ordering data
Description
Type
Order No.
Pcs. / Pkt.
Coupling relay for SIL 2 high- and low-demand applications, couples digital PSR-PS21-1NO-1NC-24DC-SC
output signals to the I/O, 1 enabling current path, 1 confirmation current
path, 1 digital signal output, safe state off applications, test pulse filter, fixed
screw terminal block
2700357
1
4
Technical data
Hardware/firmware version
HW/FW
≥ 00/-- (The technical data and safety characteristics are valid as of the specified
HW/FW version.)
Input data
Rated control supply voltage U
24 V DC -15 % / +10 %
typ. 45 mA
S
Rated control supply current I
Supply voltage
S
24 V DC -15 % / +10 % (Diagnostic supply voltage U )
D
Input current
6 mA (at 21-A2 for U ; depending on load + 100 mA at M1 and 22)
D
Typical inrush current
400 mA (t < 10 s at U )
s
2.5 A (t < 20 s at U )
D
Power consumption at U
Filter time
typ. 1.08 W
S
max. 2 ms (at A1-A2; test pulse width)
≥ 100 ms (at A1-A2; test pulse rate)
Typical starting time with U
Typical release time with U
Recovery time
< 100 ms (when controlled via A1)
< 35 ms (when controlled via A1)
500 ms
s
s
Maximum switching frequency
Operating voltage display
Status display
1 Hz
1 x yellow LED
2 x green LEDs
Indication
1 x red LED
Protective circuit
Surge protection Suppressor diode
Polarity reversal protection for rated control supply voltage and diagnostic supply
voltage
Output data
Contact type
1 enabling current path
1 confirmation current path
Contact material
AgSnO (enabling current path)
2
AgCuNi, + Au (confirmation current path)
Minimum switching voltage
Maximum switching voltage
10 V AC/DC (N/O contact)
20.4 V DC (N/C contact)
250 V AC/DC (N/O contact)
26.4 V DC (N/C contact)
Nominal current
6 A (N/O contact)
Limiting continuous current
6 A (N/O contact)
100 mA (N/C contact)
Maximum inrush current
Inrush current, minimum
Sq. Total current
6 A (N/O contact)
100 mA (N/C contact)
3 mA (N/O contact)
1 mA (N/C contact)
2
36 A (see to derating)
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PSR-PS21
Output data
Switching capacity min.
Mechanical service life
Output fuse
30 mW
6
10 x 10 cycles
6 A gL/gG (N/O contact)
4 A gL/gG (for low-demand applications)
150 mA fast blow (Confirmation current path)
Alarm outputs
Number of outputs
Voltage
1 (digital, PNP)
22 V DC (U - 2 V)
D
Current
max. 100 mA
Maximum inrush current
Short-circuit protection
500 mA (t = 1 ms at U )
s
no
General data
Relay type
Electromechanically forcibly guided, dust-proof relay.
Nominal operating mode
Degree of protection
100% operating factor
IP20
Min. degree of protection of inst. location
Mounting type
IP54
DIN rail mounting
Mounting position
vertical, horizontal, with front of module upward
See derating curve
6.8 x 93.1 x 102.5 mm
PBT yellow
Assembly instructions
Dimensions (W/H/D)
Type of housing
Clearances and creepage distances between the power circuits
Rated insulation voltage
Rated surge voltage/insulation
DIN EN 50178, EN 60079-15
250 V AC
Safe isolation, 6 kV reinforced insulation from control circuit, start circuit, confir-
mation current path, signal output to the enabling current path; 4 kV/basic insula-
tion between all current paths and housing
Pollution degree
2
Surge voltage category
III
Connection data
Connection method
Screw connection
0.2 mm² ... 2.5 mm²
0.2 mm² ... 2.5 mm²
26 ... 12
Conductor cross section, solid
Conductor cross section, stranded
Conductor cross section AWG/kcmil
Stripping length
12 mm
Screw thread
M3
Ambient conditions
Ambient temperature (operation)
Ambient temperature (storage/transport)
Max. permissible relative humidity (operation)
Max. permissible humidity (storage/transport)
Maximum altitude
-40 °C ... 65 °C (observe derating)
-40 °C ... 85 °C
75 % (on average, 85% infrequently, non-condensing)
75 % (on average, 85% infrequently, non-condensing)
max. 2000 m (Above sea level)
Shock
15g
2g
Vibration (operation)
Conformance / approvals
Conformance
CE-compliant
Approvals
UL, USA / Canada ( E140324 )
cULus
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PSR-PS21
Conformance / approvals
UL, USA / Canada ( E360692 )
Shipbuilding
Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X
GL applied for
to SIL 2
Functional Safety in accordance with IEC 61508
Safety data
Stop category according to IEC 60204
0
Safety parameters for IEC 61508 - High demand
Equipment type
Type A
HFT
SIL
0
2 (< 15% of the overall SIL)
-9
PFH
8.8 x 10 (4 A DC13; 5 A AC15; 8760 switching cycles/year)
d
Demand rate
< 12 Months
240 Months
240 Months
Proof test interval
Duration of use
For use in high-demand applications, the diagnostics function must be implemented via the confirmation current path.
Alternative illustration of the device as 1001 structure for process customers
Equipment type
Type A
HFT
0
SIL
2 (< 15% of the overall SIL)
99.18 %
Safe Failure Fraction (SFF)
SD
494.66 FIT
79.10 FIT
SU
DD
494.66 FIT
8.80 FIT
DU
Total
MTBF
PFH
1077.22 FIT
91.65 Years
-9
8.8 x 10 (4 A DC13; 5 A AC15; 8760 switching cycles/year)
Safety parameters for IEC 61508 - Low demand
Equipment type
Type A
HFT
SIL
0
2 (< 15% of the overall SIL)
-3
PFD
1.34 x 10
avg
Proof test interval
Duration of use
20 Months
240 Months
Alternative illustration of the device as 1001 structure for process customers
Equipment type
Type A
HFT
0
SIL
2 (< 15% of the overall SIL)
81.2 %
Safe Failure Fraction (SFF)
SD
0 FIT
SU
794.1 FIT
0 FIT
DD
DU
183.8 FIT
977.9 FIT
99 Years
Total
MTBF
-4
PFD
8.06 x 10 (For T1 = 1 year)
avg
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PHOENIX CONTACT
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PSR-PS21
5
Safety notes
WARNING: danger due to magnetic inter-
ference!
Do not use the device in the vicinity of strong
magnetic fields (e.g., caused by transformers
or magnetic iron). The magnetic field strength
of the environment must not exceed 30 A/m.
WARNING: Risk of electric shock
During operation, parts of electrical switching
devices carry hazardous voltages.
Before working on the switching device, dis-
connect the power.
Please observe the safety regulations of elec-
trical engineering and industrial safety and lia-
bility associations!
Disregarding these safety regulations may re-
sult in death, serious personal injury or dam-
age to equipment.
Startup, mounting, modifications, and up-
grades should only be carried out by a skilled
electrical engineer!
NOTE: Risk of damage to equipment due
to noise emissions
When operating relay modules the operator
must meet the requirements for noise emis-
sion for electrical and electronic equipment
(EN 61000-6-4) on the contact side and, if re-
quired, take appropriate measures.
NOTE: Risk of damage to equipment due
to noise emissions
WARNING: Risk of automatic machine re-
start!
For emergency stop applications, the ma-
chine must be prevented from restarting auto-
matically by a higher-level control system.
This is a Class A product. In a domestic envi-
ronment it may cause radion inteference, in
which case the user may be required to take
adequate measures.
Only use power supply units with safe isola-
tion and SELV / PELV in accordance with EN
50178/VDE 0160 (SELV / PELV).
Protective covers must not be removed when
operating electrical switching devices.
WARNING: Danger due to faulty devices!
NOTE: Electrostatic discharge!
The devices may be damaged following an er-
ror and correct operation can no longer be en-
sured.
In the event of an error, replace the device im-
mediately.
Repairs to the device, especially if the hous-
ing must be opened, may only be carried out
by the manufacturer or authorized persons.
Otherwise the warranty is invalidated.
The device contains components that can be
damaged or destroyed by electrostatic dis-
charge. When handling the device, observe
the necessary safety precautions against
electrostatic discharge (ESD) according to
EN 61340-5-1 and EN 61340-5-2.
WARNING: Risk due to incorrect installa-
tion
For reliable operation, the safety relay must
be installed in housing protected from dust
and humidity (IP54).
Carry out wiring according to the application.
Refer to the “Application examples” section
for this.
WARNING: Risk due to welded relay con-
tacts
A suitable and effective protective circuit is to
be provided for inductive loads. This is to be
implemented parallel to the load and not par-
allel to the switch contact.
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PHOENIX CONTACT
6
PSR-PS21
5.1
Installation in the Ex area (class I, zone 2)
WARNING: Explosion hazard
Ambient temperature in hazardous areas
(class I, zone 2)
Observe the derating curves.
Observe the special temperature conditions according to
the rating plate.
The device should be installed in a housing
(control or distributor box) that fulfills the re-
quirements of EN 60079-15:2010
(IEC 60079-15:2010 4th ED.) and at least
IP54 (EN/ IEC 60529) degree of protection.
NO-contact
DO-contact
250 V AC / 24 V DC
6 A, Resistive
24 V DC
100 mA
Resistive
Output
B300, R300
WARNING: Explosion hazard
Ambient
Temperature
-20 °C to 65 °C
The device must be used in no more than a
pollution degree 2 environment as defined by
EN/ IEC 60664-1.
5.2
Installation in areas with a danger of dust
explosions
WARNING: Explosion hazard
WARNING: Explosion hazard
The device is not designed for use in atmo-
spheres with a danger of dust explosions.
When installing and connecting the supply
and signal circuits observe the requirements
of EN/ IEC 60079-14. Only devices suitable
for operation in Ex zone 2 and the conditions
at the application site may be connected to
the circuits in zone 2.
In potentially explosive areas, only connect
and disconnect cables when the power is dis-
connected.
WARNING: Explosion hazard
The device must be stopped and immediately
removed from the Ex area if it is damaged or
was subject to an impermissible load or
stored incorrectly or if it malfunctions.
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PHOENIX CONTACT
7
PSR-PS21
6
Basic circuit diagram
7
Derating
7.1
Vertical mounting position
A1
21
13
40
36
PSR-PS21
ERR
PWR
K1
30
K1
DGN
20
10
24V DC
16
A2
M1
22
14
0,09
Figure 1
Block diagram
55
0
10
20
30
40
50
60
70
Key:
TA [°C]
Figure 2
Derating curve - vertical mounting position with
connected modules
Designation Explanation
A1
+24 V control input with active error ac-
knowledgment
Expanded ambient temperature range (with no distance): up
to +65 °C
A2
0 V (GND)
Conditions:
M1
21
22
Signal output (PNP)
+24 V diagnostics input
Diagnostic output +24 V
Enabling current path, undelayed
Max. rated control supply voltage
24 V DC
Max. total current of the enabling current path 1 A2
13/14
7.2
Horizontal mounting position
Confirmation current path 21/22 (N/C contact)
is not an electrically isolated current path and
may only be connected to a maximum voltage
of 26.4 V in relation to A2.
40
36
30
20
10
4
0
10
20
30
40
50
60
70
TA [°C]
Figure 3
Derating curve - horizontal mounting position
with connected modules
Expanded ambient temperature range (with no distance): up
to +65 °C
Conditions:
Max. rated control supply voltage
24 V DC
Max. total current of the enabling current path 250 mA2
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PHOENIX CONTACT
8
PSR-PS21
7.3
Mounting position with module front at the top
8
Load curve
8.1
Ohmic load
40
36
1000
30
20
10
25
500
200
100
50
0,16
0
55
10
20
30
40
50
60
70
20
TA [°C]
10
0,1
0,2
0,5
1
2
5
10
IDC [A]
Figure 4
Derating curve - mounting position with module
front at the top and aligned modules
Figure 5
Relay load curve - ohmic load
Expanded ambient temperature range (with no distance): up
to +65 °C
Conditions:
Max. rated control supply voltage
24 V DC
Max. total current of the enabling current path 250 mA2
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PHOENIX CONTACT
9
PSR-PS21
9
Operating and indication elements
9.1
Connection versions
1
2
Fixed screw connection
Snap-on foot for DIN rail mounting
The year the device was constructed can be
found underneath the CE designation on the
housing.
1
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AWG 26-12
0,2-2,5 mm2
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32825
B
14
R
W
P
0,5-0,6 Nm
5-7 lb In
12 mm
Figure 6
Connection versions
Figure 7
Year of manufacture of the device
9.2
Connection assignment
Figure
Designation
Explanation
22
21
A2
A1
Diagnostic output +24 V
+24 V diagnostics input
0 V (GND)
2 2
2 1
A 2
A 1
+24 V control input with active error acknowledgment
PWR
Power LED (yellow)
PWR
K1
ERR
DGN
Status indicator safety circuit; LED (green)
Error LED (red)
Diagnostics LED (green)
K1
ERR
DGN
PS 21
13/14
M1
Enabling current path, undelayed
Signal output (PNP)
1 3
1 4
M 1
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PHOENIX CONTACT 10
PSR-PS21
10 Mounting and connection
12 Proof test
Mount the module on a 35 mm DIN rail according to
EN 60715.
In the proof test, you check the individual relay channels.
1. Deactivate A1/A2.
2. Apply the 24 V DC diagnosis power supply to con-
tact 21.
If the green DGN-LED lights up, the module is functional.
(Apply 24 V DC to signal output M1.)
If the red ERR LED lights up, replace the module.
(Apply 0 V DC to signal output M1. Error acknowledgment
via A1 is inactive.)
Figure 8
Mounting and removing
If the diagnostic voltage supply is present and the green
DGN LED and the red ERR LED are on, replace the module.
Connect the cables to the connection terminal blocks using
a screwdriver.
If the diagnostic voltage supply is present but neither of the
LEDs specified is on, replace the module.
B
AWG 26-12
0,2-2,5 mm2
Replace the device in the event of an error.
A
12 mm
0,5-0,6 Nm
5-7 lb In
Figure 9
Connection of the cables
For compliance with UL approval, use copper
wire that is approved up to 60°C/75°C.
11 Startup
Apply the rated control supply voltage at terminal blocks A1/
A2. The PWR LED and K1 LED light up.
Enabling current path 13/14 closes, and confirmation cur-
rent path 21/22 opens.
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PHOENIX CONTACT 11
PSR-PS21
13 Calculating the power dissipation
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.
Input power dissipation
²
P
Input = UB / (US/IS)
Contact power dissipation
With the same load currents:
²
P
Contact = n IL 25 mΩ
With different load currents:
²
²
²
P
Contact = (IL1 + IL2 + ... + ILn ) 25 mΩ
Total power dissipation
Total =PInput + PContact
P
therefore
²
²
PTotal = UB / (US/IS) + n IL 25 mΩ
or
²
²
²
²
PTotal = UB / (US/IS) + (IL1 + IL2 + ... + ILn ) 25 mΩ
Key:
Designation Explanation
P
Power dissipation in mW
UB
US
IS
n
IL
Applied operating voltage
Rated control supply voltage
Rated control supply current
Number of enabling current paths used
Contact load current
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PHOENIX CONTACT 12
PSR-PS21
14 Application examples
Data for the application example as 1001 structure
Equipment type
HFT
A
0
Key:
SIL
SFF
SD
SU
2
SIS = Safety Instrumented System (safe control)
81.20 %
0 FIT
794.1 FIT
0 FIT
DC = Diagnostic Coverage according to IEC 61508
(line/load diagnostics at DO)
DI
= Digital input
DO = Digital output
DD
DU
183.8 FIT
Total
MTBF
PFDavg
977.9 FIT
Applications with the PSR-PS21
99 years
14.1 Application example 1 - SIL 2
8.06 x 10-04 (for T1 = 1 year)
–
–
–
Low-demand application
Single-channel control
Diagnostic supply voltage is present
SIS
DC 90%
DO DO DI
L
24V
(
(
A1
PSR-PS21
A2
13
14
)21
)22
K1
(
)M1
M
K1
M
(N)
Figure 10
Application example 1 - SIL 2
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PHOENIX CONTACT 13
PSR-PS21
15 Revision history
Version
00
01
Date
Contents
First publication
Info box for application example 1 deleted
Texts / safety notes for ATEX deleted
2015-03-10
2015-04-29
2015-07-14
02
PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany
phoenixcontact.com
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14
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