2865340

MACX MCR-EX-SL-RPSSI-I(-SP) Repeater power supply Ex INTERFACE Data sheet 103568_en_01 1 © PHOENIX CONTACT - 11/2008 Description The repeater power supply Ex MACX MCR-EX-SL-RPSSI-I(-SP) has been designed for the operation of intrinsically safe measuring transducers and mA current sources installed in the Ex area. The 2-wire measuring transducers are supplied with power and analog 0/4 ... 20 mA measuring values from the Ex area are transmitted to the non-Ex area. 4-wire measuring transducers and mA current sources can be operated via a non-feeding input. The module output can be operated actively or passively. The analog measuring value can be overlaid with digital (HART) communication signals on the Ex or non-Ex side and transmitted bidirectionally. An additional resistance can be switched in the output circuit in order to increase the HART impedance in low-ohmic systems using a terminal point. 1.1 – – – – – – – – – – Properties Single-channel HART-compatible Input 0/4 mA ... 20 mA, [Ex ia] IIC, feeding and non-feeding Output 0/4 mA ... 20 mA (active or passive) Error indication according to NAMUR NE 43 SIL 2 according to EN 61508 Electrical 3-way isolation Installation in zone 2 permissible Power supply via DIN rail connector possible With screw (MACX MCR-EX-SL-RPSSI-I) or spring-cage connection (MACX MCR-EX-SL-RPSSI-I-SP) Test sockets are integrated into the COMBICON connectors for connecting the HART communicators. The devices can be installed in zone 2 with the "n" (EN 60079-15) protection type. WARNING: Explosion hazard The device 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 5. Make sure you always use the latest documentation. It can be downloaded at www.phoenixcontact.com. This data sheet is valid for all products listed on the following page: MACX MCR-EX-SL-RPSSI-I(-SP) Table of contents 1 Description.................................................................................................................................. 1 2 Ordering data.............................................................................................................................. 2 3 Technical data ............................................................................................................................ 2 4 Safety regulations and installation notes..................................................................................... 5 5 Installation .................................................................................................................................. 6 6 Comparison of safety data .................................................................................................................................. 8 7 Safety-related applications (SIL 2) .............................................................................................. 9 2 Ordering data Repeater power supply Ex Description Type Order No. Pcs./Pkt. Repeater power supply Ex, with screw connection MACX MCR-EX-SL-RPSSI-I 2865340 1 Repeater power supply Ex, with spring-cage connection MACX MCR-EX-SL-RPSSI-I-SP 2924016 1 Type Order No. Pcs./Pkt. ME 6.2 TBUS-2 1.5/5-ST-3.81 GN 2869728 10 MACX MCR-PTB MACX MCR-PTB-SP 2865625 2924184 1 1 Accessories Description DIN rail connectors (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 message module, including the relevant DIN rail connector ME 17.5 TBUS 1.5/5-ST-3.81 GN Screw connection Spring-cage connection For additional accessories, please refer to the "INTERFACE" catalog from Phoenix Contact. 3 Technical data Input Input Current input, intrinsically safe Input signal Repeater power supply operation (terminal assignment 4.1, 4.2) 4 mA ... 20 mA Supply voltage > 16 V (at 20 mA) > 15.3 V (at 22.5 mA) Isolating amplifier operation (terminal assignment 5.1, 5.2) 0 mA ... 20 mA, 4 mA ... 20 mA Voltage drop < 3.5 V Output Output Current output, short-circuit-proof Output signal, active Repeater power supply operation 4 mA ... 20 mA Isolating amplifier operation 0 mA ... 20 mA, 4 mA ... 20 mA 103568_en_01 PHOENIX CONTACT 2 MACX MCR-EX-SL-RPSSI-I(-SP) Output (continued) Output signal, passive Repeater power supply operation 4 mA ... 20 mA (external source voltage 14 V ... 26 V) Isolating amplifier operation 0 mA ... 20 mA, 4 mA ... 20 mA (external source voltage 14 V ... 26 V) Transmission behavior Load 1:1 600 Ω at 20 mA 525 Ω at 22.5 mA Output ripple 22.5 mA (23 mA, typical) General data Supply voltage range 19.2 V DC ... 30 V DC Current consumption Repeater power supply operation < 60 mA (at 24 V DC) Isolating amplifier operation < 35 mA (at 24 V DC) Power dissipation Repeater power supply operation < 1.1 W (at 24 V DC/20 mA) Isolating amplifier operation < 0.9 W (at 24 V DC/20 mA) Temperature coefficient Maximum Typical Step response (10% ... 90%) < 0.01%/K < 0.004%/K < 600 μs (for jump 4 mA ... 20 mA) Transmission error Maximum < 0.1% (of final value) Typical < 0.05% (of final value) Communication HART protocol Signal bandwidth From Ex area to non-Ex area 0 kHz ... 3 kHz From non-Ex area to Ex area 200 Hz ... 10 kHz Test sockets, e.g., for HART communication COMBICON with 2 mm sockets Electrical isolation Input/output/power supply 300 Vrms (rated insulation voltage, surge voltage category II, pollution degree 2, safe isolation as per EN 61010, EN 50178) 2.5 kV AC (50 Hz, 1 min., test voltage) Input/output 375 V (peak value according to EN 60079-11) Input/power supply 375 V (peak value according to EN 60079-11) Ambient temperature Operation -20°C ... +60°C (any mounting position) Storage/transport -40°C ... +80°C Permissible humidity (operation) 10% ... 95% (no condensation) Status indicator Green LED (supply voltage) Housing material Polyamide Color Green Degree of protection IP20 Width x length x height 12.5 mm x 114.5 mm x 99 mm (without connection terminal blocks) 103568_en_01 PHOENIX CONTACT 3 MACX MCR-EX-SL-RPSSI-I(-SP) General data (continued) Inflammability class according to UL 94 V0 Type Terminal housing for mounting on DIN rails Conformance EMC Directive 2004/108/EC EN 61000-6-2, EN 61000-6-4, EN 61326-1 Ex Directive (ATEX) EN 60079-0, EN 60079-11, EN 60079-15 Safety data according to ATEX for intrinsically safe circuits Repeater power supply operation Maximum voltage Uo Maximum current Io Maximum power Po 25.2 V 93 mA 587 mW Gas group IIC Maximum inductance Lo Maximum capacitance Co 2 mH 107 nF Isolating amplifier operation Maximum voltage Ui Maximum current Ii Maximum capacitance/inductance Ci and Li Maximum voltage Um 30 V 130 mA Negligible 253 V AC (125 V DC) Certificates ATEX X II (1) GD [Ex ia] IIC BVS 08 ATEX E 054 X X II 3 (1GD) G Ex nA [ia] IIC T4 BVS 08 ATEX E 054 X IECEx [Ex ia] IIC; Ex nA [ia] IIC T4 UL USA/Canada UL applied for Functional safety (SIL) SIL 2 according to EN 61508 IECEx BVS 08.0016X Connection data MACX MCR-EX-SL-RPSSI-I Conductor cross-section Solid (minimum/maximum) 0.2 mm2/2.5 mm2 Stranded (minimum/maximum) 0.2 mm2/2.5 mm2 AWG/kcmil (minimum/maximum) 24/14 Stripping length 7 mm Connection method Pluggable screw connection Tightening torque Minimum 0.5 Nm/maximum 0.6 Nm Connection data MACX MCR-EX-SL-RPSSI-I-SP Conductor cross-section Solid (minimum/maximum) 0.2 mm2/1.5 mm2 Stranded (minimum/maximum) 0.2 mm2/1.5 mm2 AWG/kcmil (minimum/maximum) 24/16 Stripping length 8 mm Connection method Spring-cage connection 103568_en_01 PHOENIX CONTACT 4 MACX MCR-EX-SL-RPSSI-I(-SP) 4 Safety regulations and installation notes 4.1 Installation and operation Installation in zone 2 Follow the installation instructions. WARNING: Explosion hazard NOTE: Installation, operation, and maintenance may only be carried out by qualified specialist personnel. 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. The device is associated equipment of the "Ex-i" protection type and suitable for installation in zone 2. Observe the specified conditions for use in potentially explosive areas. WARNING: Explosion hazard Install the device in a suitable housing with a minimum of IP54 degree of protection. Observe the requirements of IEC 60079-14/ EN 60079-14, e.g., steel housing with a wall thickness of 3 mm. NOTE: The circuits inside the device must not be accessed. Do not repair the device yourself, but replace it with an equivalent device. Repairs may only be carried out by the manufacturer. WARNING: Explosion hazard NOTE: The device is suitable for IP20 degree of protection if: – It is installed outside potentially explosive areas. – The environment is clean and dry. Disconnect the block power supply before: – Snapping it on or disconnecting it – Connecting or disconnecting cables of non-intrinsically safe circuits WARNING: Explosion hazard Install the device in a suitable housing with a suitable degree of protection in accordance with IEC 60529 in order to protect it from mechanical and electrical damage. Only use category 3G modules (ATEX 94/9/EC). Installation in areas with a danger of dust explosions For the safety data, please refer to the operating instructions and certificates (EC examination certificate, other approvals, if necessary). 4.2 WARNING: Explosion hazard The device is not designed for installation in areas with a danger of dust explosions. Safety regulations for installation in potentially explosive areas Regulations for intrinsically safe circuits WARNING: Explosion hazard When carrying out measurements on the intrinsically safe side, be sure to observe the relevant regulations regarding the connection of intrinsically safe equipment. Only use devices approved for use in intrinsically safe circuits. Connection to the intrinsically safe circuit in areas with a danger of dust explosions (zones 20, 21, and 22) is only permitted if the equipment connected to this circuit is approved for this zone (e.g., category 1D, 2D or 3D). 4.3 Use in safety-related applications (SIL 2) When using the MACX MCR-EX-SL-RPSSI-I(-SP) in safety-related applications, observe the instructions in Section 7, as the requirements differ for safety-related functions. WARNING: Explosion hazard If the device has been used in non-intrinsically safe circuits, it must not be used again in intrinsically safe circuits. Clearly label the module as being non-intrinsically safe. 103568_en_01 PHOENIX CONTACT 5 MACX MCR-EX-SL-RPSSI-I(-SP) Output (with HART communication) Installation NOTE: Electrostatic discharge The device contains components that can be damaged or destroyed by electrostatic discharge. When handling the device, observe the necessary safety precautions against electrostatic discharge (ESD) according to EN 61340-5-1 and EN 61340-5-2. 5.1 Basic circuit diagram Ex area Operating Circuit mode impedance Source passive input card Drain active input card Safe area * OUT IN Source 4.2 - 4.2 3.2 4.1 + 4.1 3.1 2.2 5.2 - 5.2 5.1 + 5.1 250 W 2.1 - + GND +24V Figure 1 ≥ 250 Ω < 250 Ω 3.2 (+) and 2.2 (-) 2.1 (+) and 2.2 (-) 2.2 and 3.2 2.2 and 3.2 Connection of the HART communicator on the test sockets of the terminals Sink + 5.2 Structure - 1 + 1.2 GND 1.1 +24V 1.1 1.2 2.2 2.1 3.1 Power Zone 0,1,2 Div. 1,2 ≥ 250 Ω < 250 Ω Connection of the input of the HART card on the communicator * terminal 3.1 (+) and 3.2 (-) 3.1 and 3.2 3.1 (+) and 2.1 (-) 3.1 and 3.2 3.2 4 Zone 2 Div. 2 2 1.2 1.1 2.2 2.1 3.2 3.1 3 Basic circuit diagram with connection terminal blocks R PW MACX MCR-EX-SL-RPSSI-I 5 Input (intrinsically safe) – – Repeater power supply operation (2-wire transmitter or 2-wire -measuring transducer) Connection to terminal 4.1 (+) and 4.2 (-) Input isolating amplifier operation (4-wire transmitter or current sources) Connection to terminal 5.1 (+) and 5.2 (-) HART communicators can be connected as shown in the basic circuit diagram. Test sockets (diameter 2 mm) have been integrated into the connection terminal blocks for this. 4.2 4.1 5.2 5.1 Figure 2 1 2 3 4 Structure Pluggable COMBICON connection terminal blocks with test sockets Status indicator (green LED, supply voltage) Metal lock for fixing on the DIN rail Connection option for DIN rail connector WARNING: Explosion hazard The instructions given in "Safety regulations for installation in potentially explosive areas" on page 5 must be followed. 5.3 Dimensions 99 12.5 7 Operating mode Source passive input card Drain active input card 103568_en_01 Input card connection to the terminal 3.1 (+) and 3.2 (-) 114.5 Output (without HART communication) 3.2 (+) and 2.2 (-) Figure 3 Dimensions (in mm) PHOENIX CONTACT 6 MACX MCR-EX-SL-RPSSI-I(-SP) 5.4 Mounting – WARNING: Explosion hazard If the device has been used in non-intrinsically safe circuits, it must not be used again in intrinsically safe circuits. Clearly label the module as being non-intrinsically safe. A B – C 5.6 Screw connection: – Insert the wire into the corresponding connection terminal block. – Use a screwdriver to tighten the screw in the opening above the connection terminal block. Spring-cage connection: – Insert a screwdriver in the opening above the connection terminal block. – Insert the wire into the corresponding connection terminal block. Power supply 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. 1 The modules can be powered via the connection terminal blocks 1.1 (+24 V) and 1.2 (GND) or via the DIN rail connector (ME 6.2 TBUS-..., order no. 2869728). 2 Figure 4 – – – – – 5.5 – – – Mounting and removal Mount the module on a 35 mm DIN rail according to EN 60715. When using the DIN rail connector, first place it into the DIN rail (see A – C, Figure 4). It is used to bridge the power supply. Please also ensure you observe the direction of the module and DIN rail connector when snapping into position: Snap-on foot below (2) and connector left (1). Install the module in a suitable housing to meet the requirements for the protection class. Before startup, check that the repeater power supply is operating and wired correctly, especially with regard to the wiring and labeling of the intrinsically safe circuits. Connecting the cables Pluggable screw terminal blocks (on MACX MCR-EX-SL-RPSSI-I); litz wires provided with ferrules. Pluggable spring-cage terminal blocks (on MACX MCR-EX-SL-RPSSI-I-SP); litz wires provided with ferrules. Lay intrinsically safe and non-intrinsically safe cables separately. Permissible cable cross-section: 0.2 mm2 to 2.5 mm2. 103568_en_01 Depending on the number of modules to be powered, the voltage is either fed via the MACX MCR-EX-SL-RPSSI-I or the power and error evaluation module MACX MCR-PTB(-SP) on the DIN rail connector. Supply via the module Where the total current consumption of the aligned modules does not exceed 400 mA, the power can be fed in via a module's connection terminal blocks. We recommend connecting a 630-mA-fuse (normal-blow or slow-blow) upstream. Supply via the power and error evaluation module MACX MCR-PTB(-SP) The supply voltage is fed in via the module MACX MCR-PTB(-SP) on the DIN rail connectors. The supply voltage can be provided as either simple or redundant. The module MACX MCR-PTB(-SP) has integrated error evaluation. An auxiliary voltage failure or fuse error is registered to a relay contact and displayed via a flashing LED. 5.7 Level shift NOTE: A level shift between input and output is not planned. 4 ... 20 mA input signals, therefore, become 4 ... 20 mA output signals. In the same way, active input signals from 0 ... 20 mA become electrically isolated 0 ... 20 mA output signals. PHOENIX CONTACT 7 MACX MCR-EX-SL-RPSSI-I(-SP) 6 Comparison of safety data WARNING: Explosion hazard Compare the safety data before connecting a device located in the Ex-i area to the MACX MCR-EX-SL-RPSSI-I(-SP). Safety data for Field devices: Ui, Ii, Pi, Li, Ci Repeater power supply Ex: Uo, Io, Po, Lo, Co For the values for Uo, Io, Po, Lo, and Co please refer to "Safety data according to ATEX for intrinsically safe circuits" on page 4. Ex-i requirements (simple circuits): Ui ≥ Uo Ii ≥ Io Pi ≥ Po Li + Lc ≤ Lo Ci + Cc ≤ Co (Lc and Cc depend on the cables/lines used.) 103568_en_01 PHOENIX CONTACT 8 MACX MCR-EX-SL-RPSSI-I(-SP) 7 Safety-related applications (SIL 2) 7.1 Safety integrity requirements Conditions – Failure rates – – Type A device (according to EN 61508-2) Safety Integrity Level (SIL) 1 and 2 – λsd λsu* λdd λdu SFF† DCS‡ ** 0 FIT 486.7 FIT 0 FIT 50 FIT 90.7% 0% DCD‡ 0% * The SU (Safe Undetected) category includes failures that do not cause a spurious trip. † SFF = Safe Failure Fraction ‡ DC = Diagnostic Coverage (safe or dangerous) ** FIT = Failure In Time (1 FIT = 1 failure/109 h) – – – PDFAVG values T[PROOF] = PFDAVG* = * 1 year 2.19E-04 4 years 8.76E-04 5 years 1.1E-03 7.2 1. PFD = Probability of Failure on Demand 2. PFH* = 4.99 * 10-8/h * PFH = Probability of Failure per Hour The boxes marked in white mean that the calculated PFDAVG values are within the allowed range for SIL 2 according to table 2 of EN 61508-1, but do not fulfill the requirement to not cover more than 10% of this range, i.e., to be better than or equal to 1.00E-03. The boxes marked in gray mean that the calculated PFDAVG values are within the allowed range for SIL 2 according to table 2 of EN 61508-1, and do fulfill the requirement to not cover more than 10% of this range, i.e., to be better than or equal to 1.00E-03. 3. 4. 5. The failure rates of the components used remain constant throughout the period of use. Propagation of errors by the device in the system is not taken into consideration. The repair time (= replacement) should be eight hours. The failure rates of the external power supply unit are not taken into consideration. The average temperature at which the device is to be used is +40°C. This is based on standard industrial conditions. The failure rates given refer to an ambient temperature of +40°C. For an ambient temperature of +60°C, you will need to multiply the failure rates by a factor of 2.5. The factor of 2.5 is based on empirical values gathered. Proof test Carry out the appropriate steps to prevent incorrect use. A signal ranging from 4 ... 20 mA is set on the input of the MACX MCR-EX-SL-RPSSI-I(-SP). The output must be set to the same value. Setting ≤ 3.6 mA or > 22 mA verifies that the subsequent processing can provide signals outside the range. If the output value deviates from the input value by more than 3 x the specified accuracy rating, the MACX MCR-EX-SL-RPSSI-I(-SP) should be checked. In the event of an error, the device must be replaced by an equivalent device. Restore the safety circuit to full functionality. Return to normal operation. Failure limit The operating mode is based on low demand mode. The percentage of the device at PFH/PFD for the overall safety loop is less than 10%. Sensor 25% Figure 5 103568_en_01 Switching amplifier < 10% Processing Actuator 15% 50% Safety loop PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany • Phone: +49 - 52 35 - 30 0 PHOENIX CONTACT • P.O. Box 4100 • Harrisburg • PA 17111-0100 • USA • Phone: +717 - 94 4 - 13 00 www.phoenixcontact.com 9