MACX MCR-EX-SL-2NAM-T(-SP)
NAMUR signal conditioner, Ex-i,
2-channel, with transistor output
Data sheet
103753_en_00
1
Description
© PHOENIX CONTACT 2014-08-19
The 2-channel NAMUR signal conditioner
MACX MCR-EX-SL-2NAM-T(-SP)
has been designed for
intrinsically safe operation of proximity sensors (as per
EN 60947-5-6 (NAMUR)) as well as switch contacts, with
open circuit and resistance circuits, installed in hazardous
areas.
The input circuits are monitored for line faults such as wire
breaks and short circuits. Line fault detection (LFD) can be
activated and deactivated. Errors are indicated by a red
flashing LED (as per NAMUR NE 44) and the corresponding
transistor output is blocked. Error messages can also be
transmitted to the supply and error evaluation module via
the DIN rail connector.
The output circuits feature one passive transistor for each
channel for the transmission of the switching signal to the
control level. The switches make it possible to set the
direction separately for every channel (open or closed
circuit current behavior). The status of the respective
channel is signaled via a yellow LED.
Certified for safety-related applications up to SIL 2
according to IEC/EN 61508.
1.1
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–
–
–
–
–
–
–
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Properties
Two-channel
Intrinsically safe input for NAMUR proximity switches or
contacts, [Ex ia]
Transistor output, (passive), up to 5 kHz
Line fault detection (LFD)
Option of phase reversal
Safe 3-way electrical isolation
SIL 2 acc. to IEC/EN 61508
Installation in zone 2 permitted
Power supply and error indication possible via DIN rail
connector
Plug-in terminals with screw connection
(MACX MCR-EX-SL-2NAM-T)
or spring connection (push-in)
(MACX MCR-EX-SL-2NAM-T-SP)
Housing overall width 12.5 mm
–
WARNING: Explosion hazard
The module is an item of associated electrical equipment for intrinsically safe circuits. It is designed for
use in zone 2, if specific conditions are observed.
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.
WARNING: Explosion hazard
Observe the safety regulations and installation notes on page 6.
Make sure you always use the latest documentation.
It can be downloaded at
phoenixcontact.net/products.
This data sheet is valid for all products listed on page 3.
MACX MCR-EX-SL-2NAM-T(-SP)
Table of contents
1
2
3
4
Description..................................................................................................................................
1
1.1
Properties....................................................................................................................................................... 1
Ordering data..............................................................................................................................
3
Technical Data............................................................................................................................
3
Safety regulations and installation notes.....................................................................................
6
4.1
4.2
4.3
4.4
4.5
Installation notes ............................................................................................................................................ 6
Intrinsic safety ................................................................................................................................................ 6
Installation in the hazardous area (zone 2) ..................................................................................................... 6
Areas with a danger of dust explosions .......................................................................................................... 6
Safety-related applications (SIL) .................................................................................................................... 6
5
Installation ..................................................................................................................................
7
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
Connection notes .......................................................................................................................................... 7
Electrostatic discharge ................................................................................................................................... 7
Design ............................................................................................................................................................ 7
Basic circuit diagram ...................................................................................................................................... 8
Inputs (intrinsically safe) ................................................................................................................................. 8
Outputs........................................................................................................................................................... 8
Supply voltage................................................................................................................................................ 8
Dimensions .................................................................................................................................................... 9
Assembly........................................................................................................................................................ 9
Connecting the cables.................................................................................................................................. 10
Group error message ................................................................................................................................... 10
Startup.......................................................................................................................................................... 10
6
Configuration .............................................................................................................................
11
6.1
6.2
6.3
Line fault detection (switch DIP2/DIP4) ........................................................................................................ 11
Phase reversal (switch DIP1/DIP3)............................................................................................................... 11
Truth table ................................................................................................................................................... 12
7
8
Comparison of safety data .........................................................................................................
13
Safety-related applications (SIL 2).............................................................................................
14
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
Circuits ......................................................................................................................................................... 14
Diagnostics function via the switches DIP2/DIP4.......................................................................................... 14
Safe state ..................................................................................................................................................... 14
Response Times .......................................................................................................................................... 14
Operating mode of the safety function.......................................................................................................... 14
Failure behavior and required response ....................................................................................................... 14
Safety integrity requirements........................................................................................................................ 15
Conditions .................................................................................................................................................... 15
Installation and Startup................................................................................................................................. 16
Notes on operation ....................................................................................................................................... 16
Startup and restart........................................................................................................................................ 16
Recurring checks ......................................................................................................................................... 16
Repair........................................................................................................................................................... 17
Standards (SIL 2) ......................................................................................................................................... 17
Abbreviations ............................................................................................................................................... 18
103753_en_00
PHOENIX CONTACT
2
MACX MCR-EX-SL-2NAM-T(-SP)
2
Ordering data
Type
MACX MCR-EX-SL-2NAM-T
MACX MCR-EX-SL-2NAM-T-SP
NAMUR signal conditioner
Description
NAMUR signal conditioner, Ex-i, 2-channel, with screw connection
NAMUR signal conditioner, Ex-i, 2-channel, with spring connection
Order no.
2865489
2924090
Pcs. / Pkt.
1
1
Accessories
Description
DIN rail connector (T-BUS), 5-pos., for bridging the supply voltage, can be
snapped onto NS 35 DIN rail in acc. with EN 60715
Power and error evaluation module, including the corresponding DIN rail
connector ME 17.5 TBUS 1.5/5-ST-3.81 GN
Screw connection
spring connection
Type
ME 6.2 TBUS-2 1.5/5-ST-3.81 GN
Order no.
2869728
Pcs. / Pkt.
10
MACX MCR-PTB
MACX MCR-PTB-SP
2865625
2924184
1
1
For additional accessories, please refer to the catalog from Phoenix Contact.
3
Input
Input
Technical Data
Intrinsically safe, designed for protection type Ex-i [Ex ia] IIC/IIIC
CAT II (250 V against
6)
–
–
–
NAMUR proximity switches according to EN 60947-5-6 or
Switch contacts with open circuit
(not for safety-related applications, SIL 2)
or
Switch contacts with resistance circuit
Available input sources
Switching hysteresis
Off-load voltage
Switching points in acc. with IEC/EN 60947-5-6
Line fault detection
Approx. 0.2 mA
8 V DC ±10%
I < 1.2 mA (blocking)
I > 2.1 mA (conductive)
Break 0.05 mA < I
IN
< 0.35 mA
Short circuit 100
< R
Sensor
< 360
Activated/Deactivated by DIP switches
Switching output
Switching output
Maximum switching voltage
Minimum switching voltage
Maximum switching current
Minimum switching current
Drop (ΔU)
Switching behavior
Switching frequency
1 Transistor, passive (per channel)
CAT II (250 V against
6)
30 V DC
3 V DC
50 mA, short-circuit-proof
5 mA, short-circuit-proof
< 1.4 V
Can be inverted by DIP switches
5 kHz
General data
Supply voltage range
Current consumption
Power dissipation
Status indicator
19.2 V DC ... 30 V DC (24 V DC -20% ... +25%)
< 34 mA (24 V DC)
1W
Green LED (PWR, supply voltage)
Red LED (LE, line fault)
Yellow LED (OUT, switching state)
Housing material
Polyamide PA 66-FR
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PHOENIX CONTACT
3
MACX MCR-EX-SL-2NAM-T(-SP)
General data (continued)
Color
Degree of protection
Width x height x depth
Inflammability class according to UL 94
Design
Green
IP20
12.5 mm x 112.5 mm 114.5 x mm (MACX MCR-EX-SL-2NAM-T)
12.5 mm x 116 mm 114.5 x mm (MACX MCR-EX-SL-2NAM-T-SP)
0V
Terminal housing for mounting on DIN rails
Electrical isolation
Input/Output
Input/Power supply, DIN rail connector
Input/Output/Power supply, DIN rail connector
375 V
peak
(peak value acc. to EN 60079-11)
375 V
peak
(peak value acc. to EN 60079-11)
300 V
eff
rated insulation voltage
(Surge voltage category II, pollution degree 2,
safe electrical isolation as per EN 61010-1)
Test voltage 2.5 kV AC (50 Hz, 1 min)
Output 1 / Output 2
50 V
eff
rated insulation voltage
(surge voltage category II, pollution degree 2,
basic insulation acc. to EN 61010-1)
Test voltage 1.0 kV AC (50 Hz, 1 min)
Ambient conditions
Ambient temperature
Operation
Storage/Transport
Permissible humidity (operation)
Maximum altitude
-20 °C ... +60 °C (any mounting position)
-40 °C ... +80 °C
10% ... 95% (non-condensing)
2000 m above sea level
MACX MCR-EX-SL-2NAM-T
Screw connection
0.2 mm
2
... 2.5 mm
2
0.2 mm
2
... 2.5 mm
2
24 ... 14
7 mm
0.5 Nm ... 0.6 Nm
MACX MCR-EX-SL-2NAM-T-SP
Push-in spring connection
0.2 mm
2
... 1.5 mm
2
0.2 mm
2
... 1.5 mm
2
24 ... 16
8 mm
–
Connection data
Connection method
Conductor cross-section
solid
flexible
AWG/kcmil
Stripping length
Tightening torque
Conformance
EMC Directive 2004/108/EC
Ex Directive (ATEX)
EN 61000-6-2, EN 61000-6-4, EN 61326-1
EN 60079-0, EN 60079-11, EN 60079-15
Safety data according to ATEX for intrinsically safe circuits
Voltage, maximum V
o
Maximum current I
o
Maximum power P
o
Maximum inner inductance L
i
Maximum inner capacity C
i
Gas group
Maximum external inductance L
o
Maximum external capacitance C
o
Safety-related maximum voltage V
m
100 mH
510 nF
5 mH
840 nF
9.6 V
10.3 mA
25 mW
negligible
11 nF
IIC
1 mH
1.2 µF
10 µH
3.6 µF
100 mH
2.7 µF
5 mH
4.4 µF
IIB
1 mH
6.3 µF
10 µH
26 µF
253 V AC (125 V DC)
103753_en_00
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4
MACX MCR-EX-SL-2NAM-T(-SP)
Approvals
ATEX
IBExU 08 ATEX 1100
II (1) G [Ex ia Ga] IIC
II (1) D [Ex ia Da] IIIC
II 3 G Ex nA IIC T4 Gc X
IECEx approval
IECEx IBE 08.0005X [Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex nA IIC T4 Gc
UL, USA/Canada
Functional safety (SIL)
,
C.D.-No 83104549; IS for Class I,II,III, Division 1 and Zone 0; Installation
in Class I, Division 2 and Zone 2
SIL 2 according to IEC/EN 61508
103753_en_00
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