2865382 Datasheet by Phoenix Contact

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1Description
2-channel repeater power supply, Ex i
MACX MCR-EX-SL-RPSS-2I-2I
© PHOENIX CONTACT
Data sheet
The 2-channel repeater power supply is designed for the
operation of intrinsically safe (Ex-i) 2-wire measuring trans-
ducers installed in the Ex area.
The 2-wire measuring transducers are supplied with power
and analog 4...20mA measured values from the Ex area are
transferred to the non-Ex area.
The output of the module is active.
The analog measured value on the Ex or non-Ex side can be
overlayed with digital (HART) communication signals and
transmitted bidirectionally.
Sockets are integrated into the COMBICON connectors for
connecting HART communicators.
The module is suitable for safety-related applications up to
SIL3 according to IEC/EN61508.
Features
– 2-channel
–4...20mA input, intrinsically safe, [Ex ia], powered
–4...20mA output, active
– HART-compatible
Error indication according to NAMURNE43
–Up to SIL3 according to IEC/EN61508
5-way electrical isolation
Safe electrical isolation between inputs and outputs,
supply
Power supply possible via DIN rail connector
Installation in Ex zone 2 permitted
Plug-in connection terminal blocks, either screw or
spring-cage connection technology (Push-in technolo-
gy)
Housing width of 12.5mm
Low power dissipation
High transmission accuracy
WARNING: Explosion hazard
The device is an associated item of equipment (category 1) with “intrinsic safety” protection type and can be
installed in zone 2 potentially explosive areas as a category 3 device. It meets the requirements of EN60079-
0:2009, EN60079-11:2012, and EN60079-15:2010.
When installing and operating the device, the applicable safety directives (including national safety directives),
accident prevention regulations, as well as general technical regulations must be observed.
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 page:
105571_en_00 2014-05-13
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 2
2Table of contents
1 Description .............................................................................................................................. 1
2 Table of contents..................................................................................................................... 2
3 Ordering data .......................................................................................................................... 3
4 Technical data ......................................................................................................................... 3
5 Safety regulations and installation notes.................................................................................. 5
5.1 Installation notes ................................................................................................................. 5
5.2 Intrinsic safety..................................................................................................................... 5
5.3 Installation in Zone 2............................................................................................................. 5
5.4 Safety-related applications (SIL).............................................................................................. 5
6 Installation ............................................................................................................................... 6
6.1 Structure ........................................................................................................................... 6
6.2 Basic circuit diagram with connection terminal blocks ................................................................... 6
6.3 Dimensions ........................................................................................................................ 7
6.4 Assembly........................................................................................................................... 7
6.5 Connecting the cables .......................................................................................................... 8
6.6 Power supply...................................................................................................................... 9
7 Comparison of the safety data................................................................................................. 9
8 Safety-related applications ....................................................................................................10
8.1 Safety characteristic data .................................................................................................... 10
8.2 Conditions ....................................................................................................................... 11
8.3 Installation and startup ........................................................................................................ 11
8.4 Notes on operation............................................................................................................. 11
8.5 Recurring checks............................................................................................................... 12
8.6 Repair............................................................................................................................. 12
8.7 Standards........................................................................................................................ 12
8.8 Abbreviations ................................................................................................................... 13
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 3
Description Type Order No. Pcs. / Pkt.
Ex i measuring transducer repeater power supply, 2-channel; HART-trans-
parent. Supplies Ex i 2-wire measuring transducers and transmits the 4 - 20
mA signal from the Ex area to the safe area. 5-way electrical isolation, up
to SIL 3 according to IEC 61508; screw connection.
MACX MCR-EX-SL-RPSS-2I-2I 2865382 1
Ex i measuring transducer repeater power supply, 2-channel; HART-trans-
parent. Supplies Ex i 2-wire measuring transducers and transmits the 4 - 20
mA signal from the Ex area to the safe area. 5-way electrical isolation, up
to SIL 3 according to IEC 61508; spring-cage connection.
MACX MCR-EX-SL-RPSS-2I-2I-SP 2924676 1
3Ordering data
Accessories Type Order No. Pcs. / Pkt.
DIN rail connector for DIN rail mounting. Universal for TBUS housing. Gold-
plated contacts, 5-pos. Plug component
ME 6,2 TBUS-2 1,5/5-ST-3,81 GN 2869728 10
Power and error message module MACX MCR-PTB 2865625 1
Power and error message module, spring-cage terminal blocks MACX MCR-PTB-SP 2924184 1
4 Technical data
Input data
Description of the input Intrinsically safe
Current input signal 4 mA ... 20 mA
Transmitter supply voltage > 16 V (at 20 mA)
Underload/overload signal range 0 mA ... 24 mA
Output
Output description Current output
Current output signal 4 mA ... 20 mA (active)
Transmission Behavior 1:1 to input signal
Load/output load current output 450 (20 mA)
375 (24 mA)
Output behavior in the event of an error < 3.6 mA (In the event of cable break at the input (as per NE 43))
> 22.5 mA (In the event of cable short circuit at the input (as per NE 43))
Underload/overload signal range 0 mA ... 24 mA
Supply
Nominal supply voltage 24 V DC
Supply voltage range 19.2 V DC ... 30 V DC (24 V DC (-20% ... +25%))
Max. current consumption < 100 mA (24 V / 20 mA)
Power loss < 1.4 W (at 24 V DC / 20 mA)
General data
HART function Yes
Protocols supported HART
Signal bandwidth as per HART specifications
Transmission error, typical < 0.05 % (of final value)
Maximum transmission error < 0.1 % (of final value)
Maximum temperature coefficient < 0.01 %/K
Step response (10-90%) < 1.3 ms (for 4 mA ... 20 mA step)
Degree of protection IP20
Inflammability class according to UL 94 V0
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 4
Surge voltage category II
Pollution degree 2
Diameter Test socket 2.3 mm
Status display Green LED (supply voltage)
Dimensions W / H / D 12.5 mm / 99 mm / 114.5 mm
Type of housing PA 66-FR green
General data [...]
Connection data Screw connection Spring-cage connection
Conductor cross section, solid 0.2 mm² ... 2.5 mm² 0.2 mm² ... 1.5 mm²
Conductor cross section, stranded 0.2 mm² ... 2.5 mm² 0.2 mm² ... 1.5 mm²
Conductor cross section AWG/kcmil 24 ... 14 24 ... 16
Stripping length 7 mm 8 mm
Tightening torque 0.5 Nm ... 0.6 Nm
Ambient conditions
Ambient temperature (operation) -20 °C ... 60 °C (Any mounting position)
Ambient temperature (storage/transport) -40 °C ... 80 °C
Permissible humidity (operation) 10 % ... 95 % (non-condensing)
Maximum altitude for use above sea level 2000 m
Electrical isolation
Input/output, power supply
Rated insulation voltage (surge voltage category II; pollution degree 2, safe
isolation as per EN 61010-1)
50 Hz, 1 min., test voltage
300 Vrms
2.5 kV
Input/output
Peak value in accordance with EN 60079-11 375 V
Input/power supply
Peak value in accordance with EN 60079-11 375 V
Output 1/output 2/ power supply
50 Hz, 1 min., test voltage 1.5 kV
Safety data as per ATEX
Max. output voltage Uo25.2 V
Max. output current Io93 mA
Max. output power Po587 mW
Group ( Max. external inductivity Lo / Max. external capacitance Co ) IIB : 4 mH / 820 nF
IIC : 2 mH / 107 nF
Safety-related maximum voltage Um253 V AC (125 V DC)
Conformance with EMC Directive 2004/108/EC
Noise immunity according to EN 61000-6-2
When being exposed to interference, there may be minimal deviations.
Noise emission according to EN 61000-6-4
Conformance / approvals
Conformance CE-compliant, additionally EN 61326
ATEX ( BVS 13 ATEX E 001 X ) II (1) G [Ex ia Ga] IIC/IIB
II (1) D [Ex ia Da] IIIC
II 3(1) G Ex nA [ia Ga] IIC T4 Gc
IECEx ( IECEx BVS 13.0007X ) [Ex ia Ga] IIC/IIB
[Ex ia Da] IIIC
Ex nA [ia Ga] IIC T4 Gc
Functional safety (SIL) SIL 3
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 5
5 Safety regulations and installation notes
5.1 Installation notes
The device is a piece of equipment (category 1) which
belongs to the "Intrinsic Safety" ignition protection class
and can be installed in Ex zone 2 as a category 3 de-
vice. It meets the requirements of EN60079-0:2012,
EN60079-11:2012, EN60079-15:2010, IEC60079-0
ed.6.0, IEC60079-11 ed.6.0, and IEC60079-15
ed.4.0.
Installation, operation, and maintenance may only be
carried out by qualified electricians. Follow the installa-
tion instructions as described. When installing and ope-
rating the device, the applicable regulations and safety
directives (including national safety directives), as well
as general technical regulations, must be observed. For
the safety technology data, see this packing slip and the
certificates (EC examination certificate and other ap-
provals if appropriate).
The device must not be opened or modified. Do not re-
pair the device yourself, replace it with an equivalent de-
vice. Repairs may only be carried out by the
manufacturer. The manufacturer is not liable for dama-
ge resulting from violation.
The IP20 protection (IEC 60529/EN 60529) of the de-
vice is intended for use in a clean and dry environment.
The device must not be subject to mechanical strain
and/or thermal loads, which exceed the limits descri-
bed.
The device complies with the EMC regulations for in-
dustrial areas (EMC classA). When using the device in
residential areas, it may cause radio interference.
5.2 Intrinsic safety
The device is approved for intrinsically safe (Ex-i) cir-
cuits up to Ex zone 0 (gas) and Ex zone 20 (dust). The
safety technology values for intrinsically safe equipment
and the connecting lines must be observed for the hook-
up process (IEC/EC60079-14) and the values specified
in this installation note and/or the EC examination certi-
ficate must be observed.
When carrying out measurements on the intrinsically
safe side, observe the relevant regulations regarding
the connection of intrinsically safe equipment. Use only
these approved measuring devices in intrinsically safe
circuits.
If the device was used in circuits which are not intrinsi-
cally safe, it is forbidden to use it again in intrinsically
safe circuits. Label the device clearly as being not intrin-
sically safe.
5.3 Installation in Zone 2
Observe the specified conditions for use in potentially
explosive areas! Install the device in a suitable appro-
ved housing with a minimum of IP54 protection) that
meets the requirements of EN 60079-15. Observe the
requirements of EN 60079-14.
In potentially explosive areas, terminals may only be
snapped onto or off the DIN rail connector and wires
may only be connected or disconnected when the pow-
er is switched off.
The device must be stopped and immediately removed
from the Ex area if it is damaged, was subject to an
impermissible load, stored incorrectly or if it malfunc-
tions.
5.4 Safety-related applications (SIL)
When using the device in safety-related applications, ob-
serve the instructions in “Safety-related applications”, as the
requirements differ for safety-related functions.
\ 11 fl» {gr / | | u.
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 6
6 Installation
6.1 Structure
Bild 1 Structure
1Plug-in COMBICON screw or spring-cage terminal
block with integrated test socket
2Green “PWR” LED, power supply
3Snap-on foot for DIN rail mounting
4Connection option for DIN rail connector
6.2 Basic circuit diagram with connection terminal
blocks
Bild 2 Basic circuit diagram
Input (intrinsically safe)
Channel 1: connection of 2-wire transmitters or 2-wire
measuring transducers at terminals 4.1 (+) and 4.2 (-)
Channel 2: connection of 2-wire transmitters or 2-wire
measuring transducers at terminals 5.1 (+) and 5.2 (-)
HART communicators (HHT) can be connected as shown in
the basic circuit diagram. Test sockets (diameter 2.3mm)
have been integrated for this purpose.
Output
Channel 1: active output (terminals 3.1 (+) and 3.2 (-))
for connecting passive analog input cards
Channel 2: active output (terminals 2.1 (+) and 2.2 (-))
for connecting passive analog input cards
HART communicators (HHT) can be connected as shown in
the basic circuit diagram. Test sockets (diameter 2.3mm)
have been integrated for this purpose.
NOTE: Electrostatic discharge
The device contains components that can be
damaged or destroyed by electrostatic di-
scharge. When handling the device, observe
the necessary safety precautions against
electrostatic discharge (ESD) according to
EN 61340-5-1 and IEC 61340-5-1.
1.1 1.2
2.1 2.2
3.1 3.2
MACX MCR-EX-SL-RPSS-2I-2I-SP
Ord.-No.: 2865382
32825 Blomberg, Germany
Repeater Power Supply HART / Dual Channel
Supply Voltage:
U = 24 VDC (-20%/+25%)
n
Output
4 ... 20mA
U = 253 V AC, 125V DC
T -20° ... +60°C/-4° ... +140°F
m
amb
Input [Ex ia]
4 ... 20mA
WARNING
DO NOT SEPARATE WHEN ENERGIZED
AND INSTALLED IN ZONE 2
www.phoenixcontact.com
Max. Values
CH 1 4.1|4.2
CH 2 5.1|5.2
Zone Div.
U , V = 25,2 V
I , I = 93 mA
P , P = 587 mW
see manual
OOC
OSC
OO
[EX ia]
+24V GND
HHT
-
+
1.1 1.2 3.1 3.2
4.1 4.2
5.1 5.2
2.1 2.2
+
-
OUT
IN
HHT
-
+
HHT
-
+
CH 2
HHT
-
+
CH 1
MACX MCR-EX-SL-RPSS-2I-2I-SP
3.1
1.1
2.1
3.2
1.2
2.2
4.1
5.1
4.2
5.2
PWR
1.1 1.2
2.1 2.2
3.1 3.2
MACX MCR-EX-SL-RPSS-2I-2I
3.1
1.1
2.1
3.2
1.2
2.2
4.1
5.1
4.2
5.2
PWR
MACX MCR-EX-SL-RPSS-2I-2I
Ord.-No.: 2865382
32825 Blomberg, Germany
Repeater Power Supply HART / Dual Channel
Supply Voltage:
U = 24 VDC (-20%/+25%)
n
Output
4 ... 20mA
U = 253 V AC, 125V DC
T -20° ... +60°C/-4° ... +140°F
m
amb
Input [Ex ia]
4 ... 20mA
WARNING
DO NOT SEPARATE WHEN ENERGIZED
AND INSTALLED IN ZONE 2
www.phoenixcontact.com
Max. Values
CH 1 4.1|4.2
CH 2 5.1|5.2
Zone Div.
U , V = 25,2 V
I , I = 93 mA
P , P = 587 mW
see manual
OOC
OSC
OO
[EX ia]
+24V GND
HHT
-
+
1.1 1.2 3.1 3.2
4.1 4.2
5.1 5.2
2.1 2.2
+
-
OUT
IN
HHT
-
+
HHT
-
+
CH 2
HHT
-
+
CH 1
2
3
4
1
Always adhere to the safety regulations (1.2.
Intrinsic safety).
PLC / DCS
AI
Sensor / Field
Zone 2
3.2
3.1
2.2
2.1
GND
1.2
1.1
+24V
GND +24V
Power
Zone 0,1,2
Zone 20,21,22
passive
3.2
3.1
+
-
HHT
IN OUT
CH1
CH2
active
active
passive
2.1
2.2
-
+
HHT
5.2
5.1
5.2
5.1
+
-
CH2
HHT
4.2
4.1
4.2
4.1
+
-
CH1
HHT
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 7
6.3 Dimensions
Bild 3 Dimensions
6.4 Assembly
99
116 (SP)
112,5
12,5 7
114,5
WARNING: Explosion hazard
If the device has been used in non-intrinsically
safe circuits, it must not be used again in in-
trinsically safe circuits.
The device must be clearly marked as non-in-
trinsically safe.
EN / UL 61010-1:
Provide for a switch/circuit-breaker in the
vicinity of a device that is marked as dis-
connect device for this device.
Provide overcurrent protection (I 16 A)
within the installation.
To protect the device against mechanical
or electrical damage, install it in a suitable
housing with appropriate degree of pro-
tection as per IEC60529.
During maintenance work, disconnect the
device from all effective power sources.
If the device is not used as described in
the documentation, the intended protec-
tion can be negatively affected.
Thanks to its housing, the device has ba-
sic insulation to the neighboring devices,
for 300 Veff. If several devices are ins-
talled next to each other, this has to be ta-
ken into account, and additional
insulation has to be installed if necessary!
If the neighboring device is equipped with
basic insulation, no additional insulation
is necessary.
The voltages present at the input, output,
and supply are extra-low voltages (ELV).
Depending on the application, hazardous
voltage (>30V) to ground may occur.
Safe electrical isolation between inputs
and outputs and between the inputs and
the supply exists for such cases.
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 8
Bild 4 Mounting and removing
Mount the device on a 35 mm DIN rail according to
DINEN60715.
When using the DIN rail connector, first insert it in the 35
mm DIN rail according to EN60715 (A - C).
DIN rails with a height of 7.5 mm or more can be used.
The DIN rail connector is used to bridge the power sup-
ply and communication.
The snap-in direction of the device and DIN rail connec-
tor must be observed: snap-on foot on the bottom and
plug on the left.
Install the module in a suitable housing to meet the re-
quirements for the protection class.
Before startup, check that the device is operating and
wired correctly, in particular with regard to the wiring
and marking of the intrinsically safe circuits.
6.5 Connecting the cables
Screw terminal blocks: fit the litz wires with ferrules, per-
mitted conductor cross section: 0.2mm² to 2.5mm²
Spring-cage terminal blocks: fit the litz wires with ferru-
les, permitted conductor cross section: 0.2mm² to
1.5mm²
Install intrinsically safe and non-intrinsically safe cables
separately
Screw Connection
Bild 5 Screw connection
Insert the wire into the corresponding connection termi-
nal block.
Use a screwdriver to tighten the screw in the opening
above the connection terminal block.
Tightening torque: 0.6Nm
Spring-cage connection:
Bild 6 Spring-cage connection
Insert the wire into the corresponding connection termi-
nal block.
ABC
0,5-0,6 Nm
5-7 lb In
7 mm
AWG 24-14
0,2-2,5 mm
2
MACX MCR-...
A
B
A
A
B8 mm
AWG 24-16
0,2-1,5 mm
2
MACX MCR-...-SP
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 9
6.6 Power supply
The supply voltage can be supplied via terminal points 1.1
and 1.2 or via the DIN rail connector.
Supply via the MACX Analog Ex module
Where the total current consumption of the aligned modules
does not exceed 400 mA, the power can be supplied directly
at the connection terminal blocks of the module.
Up to 16 modules can be supplied depending on the current
consumption of the modules.
We recommend connecting a 630 mA fuse (normal-blow or
slow-blow) upstream.
Supply via power and error message module
The MACX MCR-PTB (Order No. 2865625) or the MACX
MCR-PTB-SP (Order No. 2924184) supply and error mes-
sage module is used to provide the supply voltage to the DIN
rail connector.
Simple or redundant diode-decoupled power supply is pos-
sible.
Depending on the current consumption of the modules, up
to 150 individual modules can be supplied by a supply that
is protected by a fuse.
The module has integrated error evaluation. An auxiliary
supply failure or fuse fault is indicated at a relay contact and
displayed via a flashing LED.
7 Comparison of the safety data
Provide proof of intrinsic safety according to standard IEC/
EN60079-14 and other national standards and installation
specifications, if applicable.
Safety data
The values for Uo, Io, Po, Lo, Co can be found under “Safety
data according to ATEX” in the “Technical data” section.
Example for proof of intrinsic safety (simple circuit)
UiUo
IiIo
PiPo
Li+LcLo
Ci+CcCo
Lc and Cc depend on the cables used.
Condition Li 1% of Lo or Ci 1% of Co
NOTE
Never connect the supply voltage directly to
the DIN rail connector. It is not permitted to
draw power from the DIN rail connector or
from individual modules.
WARNING: Explosion hazard
Compare the safety data before connecting a
device located in the Ex i area to this device.
Field devices Ui, Ii, Pi, Li, Ci
Ex repeater power supply Uo, Io, Po, Lo, Co
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 10
8 Safety-related applications
8.1 Safety characteristic data
The following notes apply for the devices:
Single-channel version
In the case of the single-channel version, each of the two
channels can be used for a (different) safety function.
The following then applies for the safety function:
Type A device (according to EN61508-2)
Safety integrity level (SIL) 2 and 3
–HFT 0
MTTR 24h
–Ambient temperature40°C
The safety function of the device involves the electrically iso-
lated forwarding of a 4...20mA standard signal with a ma-
ximum deviation of 2%.
The range from 3.6...21mA is considered the valid signal
range.
Output values outside this range are considered as the safe
state, which is detected by the subsequent controller.
Safe failures in the device are therefore those errors where
the device sends an output signal that deviates from the
input signal by no more than 2%.
Dangerous failures are errors where the device does not fol-
low a change in the input signal or deviates from the input si-
gnal by more than 2% and is not outside the range.
Errors that can be detected as dangerous failures are those
which send a signal outside the standard range (< 3.6mA
and > 21mA).
The failure rates in FIT for each of the channels are as fol-
lows:
PFDavg values
PFH = 5.53 * 10-8/h
The device is therefore suitable for SIL3 applications.
In SIL2 applications, if the percentage of the device for the
entire safety chain is assumed to be a maximum of 10%, a
maintenance/test interval of 4 years can be achieved.
The maintenance/test interval depends on the characteristic
data of all devices involved in the safety chain. The intervals
may be shorter or longer depending on this characteristic
data.
In SIL 3 applications, it is recommended that the maximum
possible test interval is determined together with data from
the other devices involved in the safety chain.
Two-channel version
With the two-channel version, both channels of the repeater
power supply are used for safety-related applications, which
means that two different sensors are present at the measu-
rement location and signal conditioning for the standard sig-
nal is 2-channel. For this, you must connect suitable measu-
ring transducers and sensors to the inputs of the 2-channel
repeater power supply. The subsequent safety-related con-
troller then compares both signals to check that they match.
The following then applies for the safety function:
Type A device (according to EN61508-2)
Safety integrity level (SIL) 3
–HFT 1
MTTR 24h
Ambient temperature40°C
The safety functions of the device involve the electrically iso-
lated forwarding of 4...20mA standard signals with a maxi-
mum deviation of 2%.
The range from 3.6...21mA is considered the valid signal
range.
Output values outside this range are considered as the safe
state, which is detected by the subsequent controller.
Safe failures in the device are therefore errors where the de-
vice sends output signals that deviate from the relevant input
signals by no more than 2%.
Dangerous failures are errors where the device does not fol-
low a change in the input signal or deviates from the input si-
gnal by more than 2% and is not outside the range.
Errors that can be detected as dangerous failures are those
which send a signal outside the standard range (< 3.6mA
and > 21mA).
The failure rates in FIT for the entire device are as follows:
Designation Order No.
MACX MCR-EX-SL-RPSS-2I-2I 2865382
MACX MCR-EX-SL-RPSS-2I-2I-SP 2924676
SU SD DU DD SFF DCD
316 0 55 345 92.27% 86.25%
T [PROOF] 1 year 4 years 5 years
PFDavg 2.52 10-4 9.79 10-4 1.22 10-3
Sensor Device Processing Actuator
25%<10%15%50%
SU SD DU DD SFF DCD
549 0 92 567 92.36% 86.04%
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 11
PFDavg values
PFH = 1.99 * 10-8/h
When calculating the average probability of a dangerous fai-
lure on demand, errors with the same cause were taken into
consideration and a β or βD factor of 2% was determined.
The device is therefore suitable for SIL3 applications.
In SIL2 applications, if the percentage of the device for the
entire safety chain is assumed to be a maximum of 10%, a
maintenance/test interval of 10 years can be achieved.
The maintenance/test interval depends on the characteristic
data of all devices involved in the safety chain. The intervals
may be shorter or longer depending on this characteristic
data.
In SIL 3 applications, it is recommended that the maximum
possible test interval is determined together with data from
the other devices involved in the safety chain.
8.2 Conditions
The failure rates of the components used remain cons-
tant throughout the period of use.
The propagation of errors by the device in the system is
not taken into consideration.
The failure rates of the external power supply are not ta-
ken into consideration.
The specified error rates are based on an ambient tem-
perature of+40°C. For an ambient temperature
of+60°C, the error rates must be multiplied by factor
2.5. Factor 2.5 is based on guide values.
8.3 Installation and startup
During installation, observe the instructions in the package
slip:
The package slip is supplied with the device. It can also be
downloaded at: phoenixcontact.net/products.
Lockable housing with IP54 protection is recommended for
the installation of the devices.
Connect the device according to the installation notes.
Make sure that the connected sensor and measuring
transducer correspond to the intended configuration.
Check that the device operates correctly with the
measuring transducer and sensor connected.
A calibrated sensor simulator and a calibrated digital
multimeter may be required in order to check the device
with the measuring transducer connected.
Start up the safety circuit and check that it operates cor-
rectly.
8.4 Notes on operation
In normal operation, only the green LED (PWR) is on.
If a failure occurs during operation, the output signal is usu-
ally set to a value outside the “normal” signal range of
3.6...21mA. The connected SIS should therefore check
the validity of the read signal values and initiate appropriate
measures in the event of deviations from the normal values.
You should also check whether the connected measuring
transducer responds to line faults at the sensors. After being
switched off and on again, the required voltages are estab-
lished in the device. Signal transmission is then performed
without further action.
T [PROOF] 1 year 5 years 10 years
PFDavg 0.91 10-4 4.15 10-4 8.27 10-4
Sensor Device Processing Actuator
25%<10%15%50%
NOTE:Installation, operation, and mainte-
nance may only be carried out by qualified
specialist personnel.
Designation MNR No.
PACKB.MACX MCR-EX-SL-RPSS-2I-2I 9060873
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 PHOENIX CONTACT 12
8.5 Recurring checks
The function of the entire safety loop must be checked regu-
larly according to EN61508 and EN61511.
The intervals for checking are specified by the intervals of
each individual device within the safety loop.
It is the operator's responsibility to select the type of checks
and the checking intervals in the specified time period.
In SIL 2 applications, the repeater power supplies/signal
conditioners must be checked at least every 4 (10) years
(maximum proof test interval, if they represent 10% of the
entire safety chain).
Checking must be carried out in such a way that the correct
function of the safety equipment in conjunction with all com-
ponents can be verified.
Possible procedure for recurring checks for disco-
vering dangerous and undetected device failures
A calibrated simulator (0/4...20mA current) or a sensor si-
mulator and one or ideally two calibrated digital multimeters
are required in order to check the devices.
1. Take appropriate steps to prevent incorrect use.
2. Disconnect the safety circuit from further processing.
3. Connect the current simulator to the input of the repea-
ter power supply/signal conditioner, or the sensor simu-
lator to the input of the measuring transducer.
4. Connect the digital multimeters to the input and output
of the repeater power supply/signal conditioner.
5. At the input of the device, set a signal in the range from
4...20mA or at the input of the connected measuring
transducer, set a suitable signal with the sensor simula-
tor.
6. Measure the current in the repeater power supply/signal
conditioner. The output must be set to the same value.
7. Setting 3.6mA or > 22mA verifies that the subse-
quent processing can detect signals that are out of ran-
ge and evaluate them accordingly. If the output value
deviates from the input value by more than 3 times the
specified class accuracy rating, the device should be
checked. In the event of an error, the device should be
replaced with an equivalent device.
8. Restore the safety circuit to full functionality.
9. Resume normal operation.
8.6 Repair
The devices have a long service life, are protected against
malfunctions, and are maintenance-free.
However, if a device should fail, send it back to Phoenix
Contact immediately. The type of malfunction and possible
cause must also be stated.
Please use the original packaging or other suitable safe pa-
ckaging when sending devices back for repairs or recalibra-
tion.
Phoenix Contact GmbH & Co. KG
Abteilung Service und Reparatur
Flachsmarktstr. 8
32825 Blomberg
GERMANY
8.7 Standards
The devices are developed and tested according to the fol-
lowing standards:
EN61508:2011 Functional safety of electrical/
electronic/programmable electro-
nic safety-related systems
EN61326-1:2006 Electrical equipment for measure-
ment, control and laboratory use -
EMC requirements
IEC61326-3-2: 2006 Electrical equipment for measure-
ment, control and laboratory use -
EMC requirements - Part 3-2: Im-
munity requirements for safety-re-
lated systems and for equipment
intended to perform safety-related
functions (functional safety) - In-
dustrial applications with specified
electromagnetic environment
MACX MCR-EX-SL-RPSS-2I-2I
105571_en_00 13
PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany
phoenixcontact.com
8.8 Abbreviations
Abbreviation Meaning
DCDDiagnostic coverage of dangerous failures Diagnostic coverage of dangerous failures: DCD = DD/(DU +
DD)
DCSDiagnostic coverage of safe failures Diagnostic coverage of safe failures: DCS = SD/(SU + SD)
FIT Failure in time 1 FIT = 1 failure/109h
HFT Hardware fault tolerance Hardware fault tolerance: ability of a function unit to continue with
the execution of a demanded function despite existing faults or
deviations
βCommon cause factor Proportion of undetected failures as a result of a common cause
βDCommon cause factor, diagnostic Proportion of failures as a result of a common cause which are de-
tected by the diagnostic test.
DRate of dangerous failures Proportion of dangerous failures per hour
DD Rate of dangerous detected failures Proportion of detected dangerous failures per hour
DU Rate of dangerous undetected failures Proportion of undetected dangerous failures per hour
SRate of safe failures Proportion of safe failures per hour
SD Rate of safe detectable failures Proportion of detectable safe failures per hour
SU Rate of safe undetectable failures Proportion of undetectable safe failures per hour
MTBF Mean time between failures Mean time between consecutive failures
PFDavg Average probability of failure on demand Average probability of dangerous failure on demand of a safety
function
PFH Probability of a dangerous failure per hour Probability of failure per hour for the safety function
SFF Safe failure fraction Proportion of safe failures: proportion of failures without the po-
tential to set the safety-related system to a dangerous or imper-
missible function state
SIL Safety integrity level International standard IEC61508 defines four discrete safety inte-
grity levels (SIL 1 to 4). Each level corresponds to a probability
range for the failure of a safety function. The higher the safety in-
tegrity level of safety-related systems, the lower the probability
that the demanded safety functions will not be performed.

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