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INM 5500 Rev 11

71

10 .3 MTL5051 serial data comms isolator

The MTL5051provides either bi-directional serial data communications from a computer system
in a safe area to instrumentation in a hazardous area or data communications across
a hazardous area. It is used to provide a fully floating dc supply for, and serial data
communications to MTL640 text displays and MTL650 text and graphics terminals or to other
IS and non-IS instrumentation and keyboards.

10 .3 .1 Wiring connections

See the figures 10.3 and 10.4 and the terminal specifications in tables 10.2 and 10.3 for wiring
connections.

Figure 10.3: MTL5051 wiring diagram (to a hazardous area)

Hazardous area

Safe area

Safe area

Hazardous area

Figure 10.4: MTL5051 wiring diagram (across a hazardous area)

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Содержание MTL5500 Series

Страница 1: ...MTL5500 range Isolating interface units July 2019 INM 5500 Rev 11 Instruction manual MTL intrinsic safety solutions...

Страница 2: ...ATION OF CONFORMITY A printed version of the Declaration of Conformity has been provided separately within the original shipment of goods However you can find a copy of the latest version at http www...

Страница 3: ...6 1 7 MTL5514 MTL5514D MTL5514 T Switch Proximity detector interface 27 6 1 8 MTL5516C Switch Proximity detector interface 28 6 1 9 MTL5517 Switch Proximity detector interface 29 6 2 Digital Output m...

Страница 4: ...tor for MTL temperature converters 59 7 FAULT FINDING AND ROUTINE MAINTENANCE 59 7 1 Maintenance precautions 59 7 2 Fault finding 59 7 3 Routine maintenance 59 8 BENCH TESTING MODULES 60 8 1 Digital I...

Страница 5: ...re installation Note Refer to the website for multiple language safety instructions ELECTRICAL PARAMETERS Refer to the certification documentation for the electrical rating of these products CERTIFICA...

Страница 6: ...ectrical apparatus and is normally mounted in a non hazardous safe area Specific apparatus described as Category 3 compliant may be installed in a Zone 2 location providing that the relevant installat...

Страница 7: ...rs may have specific requirements which should also be met b Access to the internal circuitry must not be made during operation Repair a This product cannot be repaired by the user and must be replace...

Страница 8: ...INM 5500 Rev 11 viii This page is left intentionally blank...

Страница 9: ...technology to ensure the highest quality and availability while maintaining maximum flexibility at lowest cost Incorporating advanced circuit design a common set of components and innovative isolating...

Страница 10: ...ion probe interface MTL5532 1 pulse isolator digital or analogue output MTL5533 2 vibration probe interface MTL5553 1 isolator power supply for 31 25kbits s fieldbuses Analogue Input MTL5541 1 2 3 wir...

Страница 11: ...rinsic safety or contact Eaton s MTL product line or your local representative for assistance Make sure the correct hazardous area connector field wiring plug is plugged into the corresponding isolato...

Страница 12: ...3 1 3 Ambient temperature considerations Ambient temperature limits for unenclosed MTL5500 range of isolators are from 20 C to 60 C with units close packed and modules with the T suffix have an exten...

Страница 13: ...of each module The socket is coloured black if the unit is dc powered Power plugs are coloured grey for plugging into the black sockets of dc powered units 3 2 2 2 Making connections a Trim back the i...

Страница 14: ...6 PB 16T 17 to 24 PB 24T 25 to 32 PB 32T Table 4 1 Power bus kit options 4 1 2 Installation 1 Check to make sure the bus length is correct for the number of modules involved 2 If the number of modules...

Страница 15: ...e insulated AC power cable with conductor parameters of 0 2 1 5mm2 or 0 25 1 5mm2 if using ferrules Strip the outer insulation by no more than 30mm then strip the inner conductors by 8mm Insert the ca...

Страница 16: ...t ERB570 see figure 4 4 4 10 in the upper slot the mounting blocks can then be fitted in a restricted space with this bracket already fitted ERB570 Earth rail bracket offset figure 4 9 Nickel plated b...

Страница 17: ...ener 14mm Earth rail clamp ERL7 THR2 IMB57 ERL7 HAZ1 3 HAZ4 6 TH5000 TAG57 TGL57 SAF7 9 SAF10 12 ERB57S ETM7 PWR5000 Figure 4 3 Assembly drawing showing part numbers Figure 4 4 Mounting details Figure...

Страница 18: ...each mounting block c In lower position where there is insufficient clearance to fit earth rail brackets ERB57S As for a but slide offset earth rail brackets ERB57O into the upper slot in each mountin...

Страница 19: ...Outputs Blue MTL5531 33 Vibration Purple MTL5532 Pulse Blue MTL5541x MTL5544x Analogue Inputs Green MTL5546x MTL5549x Analogue Outputs Blue MTL556x Fire Smoke Orange MTL557x MTL558x Temperature input...

Страница 20: ...sistance 5 1 6 Chemical resistance 5 1 7 5 1 1 Maximum outside enclosure temperature limits Figure 5 1 Graph depicting outside enclosure temperature limits for DX enclosures used with MTL5500 isolator...

Страница 21: ...wer dissipation figures of individual MTL5500 modules Table 5 3 Typical mix of MTL5500 modules Enclosure Modules installed Power dissipation of modules in watts P Maximum outside enclosure temp TMO C...

Страница 22: ...sures 150 DX070 130 113 5 153 5 70 180 163 5 203 5 5 2 184 147 inside Top of DIN rail 270 80 80 540 430 520 576 249 305 7 2 DX430 184 147 inside Top of DIN rail 170 249 305 102 102 360 339 395 270 7 2...

Страница 23: ...to a variety of chemical agents Table 5 5 Qualitative evaluations of resistance to various chemical agents Chemical agents Qualitative evaluation of resistance Salt water neutral salts acids low conce...

Страница 24: ...nd 7 0mm DX170 and DX430 e Appropriate fixing hole distances are shown in Figures 5 2 5 2 4 Cable glanding All cables into the enclosures must be glanded to IP65 standards to maintain this rating for...

Страница 25: ...ils Use of mounting blocks will reduce the space available for isolator modules 5 3 2 Earth rails ERL7 Earth rail is produced in 1 metre lengths and will require cutting to length before mounting ERL7...

Страница 26: ...ea cable cores to an IS earth or insulate and secure the ends Insulate and secure safe area cables If testing a unit in situ note that the test equipment used MUST be intrinsically safe The rest of th...

Страница 27: ...R when using the LFD facility with a contact input resistors must be used Fit 500 to 1k preferred value 680 in with the switch and 20k to 25k preferred value 22k in parallel with the switch For modes...

Страница 28: ...fe output Operation LFD contacts 2 9mA Is 3 9mA ON Normal CLOSED Is 1 9mA Is 5 1mA OFF Normal CLOSED Is 50 A OFF Broken line OPEN Rs 100 OFF Shorted line OPEN Correct operation of the fail safe output...

Страница 29: ...can for example enable one input to affect multiple outputs or create latched outputs etc The channel output transistors Ch1 Ch2 and Ch3 Ch4 share a common terminal and can switch ve or ve polarity s...

Страница 30: ...OFF OFF 3 2 ch 2 pole changeover output OFF OFF ON OFF 4 1 ch with line fault output MTL5014 ON OFF ON OFF 5 As mode 4 with changeover outputs OFF ON ON OFF 6 1 ch with start stop latch MTL2210B ON O...

Страница 31: ...o p 1 o p 2 o p 3 o p 4 i p Ch A No fault Line fault No fault Line fault o p 1 Mode 4 1 ch with line fault output No fault Line fault No fault Line fault o p 3 i p Ch A No fault Line fault No fault Li...

Страница 32: ...ine fault o p 1 No fault Line fault No fault Line fault LFD o p 3 i p Ch C No fault Line fault No fault Line fault o p 2 No fault Line fault No fault Line fault LFD o p 3 LFD o p 4 Mode 10 As mode 9 w...

Страница 33: ...on the side of the module and output is provided by the changeover relay contacts See page 19 for LFD and PR switch details Channel 1 only switch settings apply For switch sensor inputs with LFD selec...

Страница 34: ...selected by DIL switches on the side of the module LFD indication is provided on the top of the module See page 19 for LFD and PR switch details Channel 1 2 switch settings apply For switch sensor in...

Страница 35: ...and output is provided by changeover relay contacts See page 19 for LFD and PR switch details Channel 1 only switch settings apply For switch sensor inputs with LFD selected make sure resistors 22k a...

Страница 36: ...angeover relay contacts See page 19 for LFD and PR switch details Channel 1 2 switch settings apply For switch sensor inputs with LFD selected make sure resistors 22k and 680 are fitted Note For relia...

Страница 37: ...elay contacts See page 19 for LFD and PR switch details Channel 1 2 switch settings apply For switch sensor inputs with LFD selected make sure resistors 22k and 680 are fitted Note For reliable long t...

Страница 38: ...channel loop powered IIC The MTL5521 T is a loop powered module that enables a device located in the hazardous area IIC gas group to be controlled from the safe area The MTL5521 T can drive a certifi...

Страница 39: ...gas group to be controlled from the safe area The MTL5522 can drive a certified intrinsically safe low power load as well as non energy storing simple apparatus such as an LED 6 5 4 3 2 1 7 8 9 10 11...

Страница 40: ...is signalled by a safe area solid state switch output which when a field line is open or short circuited becomes de energised Earth fault detection can be provided by connecting an MTL4220 earth leak...

Страница 41: ...e output state is signalled by a safe area solid state switch which energises if a field line is open or short circuited The VL version has a lower current capability to suit alternative load requirem...

Страница 42: ...can drive loads such as solenoids alarms LEDs and other low power devices that are certified as intrinsically safe or are classified as non energy storing simple apparatus 6 5 4 3 2 1 7 8 9 10 11 12...

Страница 43: ...oids alarms LEDs and other low power devices that are certified as intrinsically safe or are classified as non energy storing simple apparatus Similar in function to the MTL5521 this module provides l...

Страница 44: ...separate IS circuits are such that they would remain safe if connected together 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IS relay IS relay 1 Vs Vs 20 to 35V dc 2 Control 20 to 35V dc Loop powered Contact inp...

Страница 45: ...Vibration transducer Vibration transducer Vs Vs 20 to 35V dc ve 0V Monitor 3 wire 2 wire 2 1 3 Terminal Function 1 Transducer power V 2 Signal 3 Common 11 Signal output ve 12 Signal output 0V 13 Suppl...

Страница 46: ...liable long term operation the load on the output switching relay should not be less than 50mW e g 10mA at 5VDC Hazardous area Safe area 6 5 4 3 2 1 7 8 9 10 11 12 13 14 Vs Vs 20 to 35V dc 3 wire curr...

Страница 47: ...nfigurator Alarm inhibiting The Inhibit input is provided to inhibit alarm output operation This facility is useful for example during power up when pulse rates are below the alarm threshold When norm...

Страница 48: ...h 2 6 5 4 3 2 1 7 8 9 10 11 12 13 14 Terminal Function 1 Transducer power V Ch1 2 Signal Ch1 3 Common Ch1 4 Transducer power V Ch2 5 Signal Ch2 6 Common Ch2 8 Signal output ve Ch2 9 Signal output 0V C...

Страница 49: ...twork and termination criteria check applicable fieldbus standards and specification IEC 61158 2 ISA S50 02 for 31 25kbit s fieldbus systems Foundation Fieldbus 31 25kbit s Physical LayerProfile Speci...

Страница 50: ...area load For HART 2 wire transmitters the unit allows bi directional communications signals superimposed on the 4 20mA loop current Alternatively the MTL5541S T acts as a current sink for a safe area...

Страница 51: ...signals superimposed on the 4 20mA loop current Alternatively the MTL5541AS acts as a current sink for a safe area connection rather than driving a current into the load Hazardous area Safe area Vs V...

Страница 52: ...A Load Ch 2 Ch 1 MTL5544 MTL5544S Load Load 4 20mA 4 20mA Ch 2 Ch 1 Com Tx Input Com Tx Input 6 5 4 3 2 1 7 8 9 10 11 12 13 14 I I I I Terminal Function 1 Ch1 current input 2 Ch1 transmitter supply ve...

Страница 53: ...as a current sink for a safe area connection rather than driving a current into the load Hazardous area Safe area Vs Vs 20 to 35V dc Ch 2 Ch 2 Ch 1 Ch 1 4 20mA 4 20mA 6 5 4 3 2 1 7 8 9 10 11 12 13 14...

Страница 54: ...n be connected but will not support HART communication Hazardous area Safe area Vs Vs 20 to 35V dc Ch 2 Ch 1 4 20mA Load 4 20mA Load 4 20mA 6 5 4 3 2 1 7 8 9 10 11 12 13 14 Com Tx Input I I I Terminal...

Страница 55: ...directional transmission of digital communication signals so that the device can be interrogated either from the operator station or by a hand held communicator Process controllers with a readback fa...

Страница 56: ...ld communicator Process controllers with a readback facility can detect open or short circuits in the field wiring if these occur the current taken into the terminals drops to a preset level The MTL55...

Страница 57: ...e and smoke detectors located in hazardous areas In operation the triggering of a detector causes a corresponding change in the safe area current The unit features reverse input polarity protection Ha...

Страница 58: ...tion using PCS45 PCL45USB Use PCS45 software in conjunction with the PCL45USB serial link to configure these modules Instructions are contained within the software See Section 6 9 on page 58 for furth...

Страница 59: ...al CJC sensor Configuration is carried out using a personal computer Top label Use the following LED information to understand the module status Status PWR green STS yellow Power ON ON Insufficient vo...

Страница 60: ...ersonal computer see section 6 9 A single alarm output is provided and may be configured for process alarm or to provide notice of early thermocouple failure Top label Use the following LED informatio...

Страница 61: ...rial link see Section 6 9 Hazardous area Safe area Terminal Function 1 RTD input Ch1 2 RTD input Ch1 3 3 wire RTD input Ch1 4 RTD input Ch2 5 RTD input Ch2 6 3 wire RTD input Ch2 8 Output ve Ch2 9 Out...

Страница 62: ...personal computer and connected via the PCL45USB serial link see Section 6 9 Top label Use the following LED information to understand the module status Status PWR green FLT red STS yellow Power ON O...

Страница 63: ...ignals The MTL5581 takes a low level dc signal from a voltage source in a hazardous area isolates it and passes it to a receiving instrument located in the safe area The module is intended for use wit...

Страница 64: ...onnected on the safe area side of the unit is independent of the number of wires which can be connected on the hazardous area side The module drives upscale in the case of open circuit detection The M...

Страница 65: ...599 Dummy Isolator The primary function of the MTL5599 is to provide termination and earthing facilities for unused cable cores from hazardous areas that can occur for example if any MTL5500 module ha...

Страница 66: ...rWindows 7 Ensure that the chosen PC has a CD ROM drive and an available USB port A local or network printer may also be an advantage Safety It is not permitted to connect the PCL45USB to any device o...

Страница 67: ...safe area connectors b Unplug any power connectors and remove from DIN rail c Reverse this procedure to fit a replacement module 7 2 3 Potentially faulty modules should be tested in workshop condition...

Страница 68: ...sal switch in both OFF and ON conditions Model Resistor values Switch simulation conditions MTL5501 SR R1 10k R2 1k4 a Normal field switch open b Normal field switch closed c Line Fault Test for short...

Страница 69: ...he output terminals of the module observing polarity 2 Apply 24V between the supply terminals Vs Vs 3 The voltmeter should now include no more than 4V 4 Close the Control switch or for the MTL5523V or...

Страница 70: ...be affected 1 Adjust RV1 to vary the current A1 through the range 4 to 20mA 2 The measured current imbalance A2 over this range should not exceed 20 A 3 Adjust RV1 for a 20mA reading on A1 4 The volta...

Страница 71: ...through the range 4 to 20mA 2 The measured current imbalance A2 over this range should not exceed 20mA 8 3 4 Modules MTL5541AS MTL5544AS Figure 8 8 AI test circuit 4 active i p o p sinking Output Meas...

Страница 72: ...et the resistance box to any value between 10 and 400W and switch on power supply 2 The green PWR LED should go to a steady state after initially flashing If the flashing does not stop after 5 seconds...

Страница 73: ...ed 20mA 8 5 Testing the functioning of other modules Simple tests to verify their basic operation can be devised for other modules e g temperature pulse vibration etc If any assistance is required for...

Страница 74: ...stituting appropriate resistors at Rtest carry out the following checks Rtest Voltage across terminals 2 and 1 V1 Open circuit 17 8 V1 19V 220 11 5V V1 13 5V 10 V1 5V 20 35V dc Vs Vs ve ve ve Host 31...

Страница 75: ...rovals as supporting evidence for the ATEXTechnical File In the context of this document Zone 2 Division 2 and Zone 22 hazardous areas are those that may become potentially explosive through the prese...

Страница 76: ...ith the descriptive system document If in doubt refer to the certificate catalogue for clarification of any aspects of intrinsic safety or contact Eaton s MTL product line or your local representative...

Страница 77: ...fault detection See section 6 1 for definition of a line fault On each channel input line faults open or short circuit are indicated by an LED and the de energising of the output LFD is enabled disab...

Страница 78: ...hase reverse switch Line fault detection Input switch SW Output relay 11 12 8 9 Output relay 10 11 7 8 Channel status LED yellow Line fault LED red Normal Off a Closed Open On Off Reverse Off ISC 7 _...

Страница 79: ...ully floating dc supply for and serial data communications to MTL640 text displays and MTL650 text and graphics terminals or to other IS and non IS instrumentation and keyboards 10 3 1 Wiring connecti...

Страница 80: ...n this mode is the lesser of 19 2k baud or the cable related rate produced by the following formula Remote signalling baud rate formula for back to back mode across a hazardous area max baud rate K Rx...

Страница 81: ...shown in figure 10 6 Check that the green power LED on top of the unit is on Put all switches in the On position With no load check for nominal current of 60mA 5mA at terminal 14 Correct operation of...

Страница 82: ...ice to provide two trip alarm outputs direct from the transmitter signal see schematic diagram Looping the transmitter signal through the MTL 5314 via terminals 1 and 3 does not affect HART communicat...

Страница 83: ...LED goes out iv Relays are energised in normal operation and de energised when tripped A lit LED shows the safe condition not tripped Table 10 4 Trip switch A or B Operation PWR LED A or B LED Relay...

Страница 84: ...ink to 12mA b Adjust each trip potentiometer until the associated LED just extinguishes c With sources of 11 5mA and 12 5mA carry out the following checks Table 10 5 Current High alarm Low alarm Relay...

Страница 85: ...il ne stockant pas d energies Betriebsmittel ohne Energiespeicherung Aparatos que no almacenan energ a 1 5V 0 1A 25mW config configuration socket fiche de configuration konfigurationssocket toma con c...

Страница 86: ...INM 5500 Rev 11 78 This page left intentionally blank...

Страница 87: ...INM 5500 Rev 11 79 This page left intentionally blank...

Страница 88: ...t Off Old Mahabalipuram Road Sholinganallur Chennai 600 119 India Tel 91 0 44 24501660 24501857 Fax 91 0 44 24501463 E mail mtlindiasales eaton com ITALY MTL Italia srl Via San Bovio 3 20090 Segrate M...

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