Eaton MTL4850, Instruction Manual

Page 1: ...DRAFT 11 December 2014 MTL4850 and MTL4854 HART Connection Systems March 2015 INM 4850_54 Rev4 Instruction Manual MTL HART Interfacing Solutions...

Page 2: ...lier harmonised standards a subsequent review has determined that technical knowledge is unaffected by the current harmonised standards listed above Product Description EMC1 LVD2 ATEX3 Cat1 Cat2 ATEX...

Page 3: ...ng Read and understand the contents of this manual and the product datasheet Ensure installation and operating personnel have received adequate training for this task Ensure that any operating instruc...

Page 4: ...iv DRAFT 11 December 2014 INM MTL4850_54 Rev4 THIS PAGE IS LEFT INTENTIONALLY BLANK...

Page 5: ...ation and tagging 17 4 9 Backplane earth rails 17 4 10 Backplanes connections 18 4 11 Cabling recommendations 20 4 12 RS485 connection 20 5 MODULES 22 5 1 MTL4850 installation 22 5 2 Isolator modules...

Page 6: ...vi DRAFT 11 December 2014 INM MTL4850_54 Rev4 THIS PAGE IS LEFT INTENTIONALLY BLANK...

Page 7: ...pecifications of the MTL4850 system components and accessories and the MTL4500 Series isolators mentioned in this manual 2 DESCRIPTION The MTL4850 HART Maintenance System enables a user to calibrate c...

Page 8: ...ideration must be given to the safety parameters for each field loop For further information please refer to MTL or your local representative The MTL4850 has a single HART modem to service the channel...

Page 9: ...vice wiring These are not designed for any particular DCS type and may be used universally The alternative is to choose a connection unit or backplane that integrates with the type of DCS being used o...

Page 10: ...ions 4 2 to 4 5 for details The final method considered here consists of two backplane options 16 channel backplane CPH SC16 and CPH SC16R 32 channel backplane CPH SC32 and CPH SC32R Both backplanes a...

Page 11: ...ing to and from the field devices the HTP SC32 will often be the primary method of choice It is intended for analogue input signals but may also be used for analogue outputs if the host system is comp...

Page 12: ...put DCS input 24V or Tx from DCS Tx 2 wire transmitter input A B Tx Ch HART Tx Ch 200 50 Figure 4 2b HTP SC32 S200 for 2 wireTx DCS input DCS input Tx 4 wire transmitter input A B HART Ch 250 Link Ch...

Page 13: ...s shown in Figure 4 3 4 1 5 HART addressing A 6 way DIP switch SW1 is provided on the circuit board to enable a unique HART address to be set for the HART multiplexer The switch is binary coded and th...

Page 14: ...software and to onward link to other HMP HM64 or similar HART interfaces Full details of this communications link are provided in Sections 4 12 4 2 4 DC power connections The HMP HM64 has a removable...

Page 15: ...eater mechanical protection However this is normally unnecessary as to maintain integrity each group of cabinets would communicate their HART signals via independent MTL4850 54 modules using the RS485...

Page 16: ...circuit board to fit parallel resistors normally 250W or an appropriate series resistor to raise the impedance if it is 240W This unit can be used with analogue outputs if the system s current signal...

Page 17: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 11 HMP HM64 HART INTERFACE Figure 4 7 HCU16 schematic diagram...

Page 18: ...with a low pass filter in series with the current signal from the system This has virtually no effect on the 4 20mA signals but presents a suitable high impedance 240W to the HART signals for their d...

Page 19: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 13 HMP HM64 HART INTERFACE Figure 4 9 HCU16AO schematic diagram...

Page 20: ...linked in this way only one will have the multiplexer modules fitted The MTL4850 54 is fitted to the backplane that carries modules 1 16 the RS485 serial link should also be connected to this backplan...

Page 21: ...DRAFT 11 December 2014 DRAFT 11 December 2014 INM MTL4850_54 Rev4 15 Figure 4 10 CPH SC16 R backplane Figure 4 11 CPH SC32 R backplane Carrier weight 415g nominal Carrier weight 420g nominal...

Page 22: ...her B and a plain washer C over it c Insert the screw through a fixing hole on the baseplate d Fit a 10mm spacer D and retain it with washer E e Repeat steps a to d for the other five 5 mounting holes...

Page 23: ...ngstripmountingpost 1 withtwoM3x12 mountingscrews 2 andwashers 3 c Attach colour coding labels 6 onto tag label 5 d Mark tag label 5 with tag references e Slide tag label 5 into tag strip holder 4 and...

Page 24: ...channel terminals are used for input or output field devices because the backplane provides the required interconnections Maximum wire gauge is 2 5mm2 12 AWG and the wire enters from the side of the...

Page 25: ...e without affecting supplies to other backplanes Two or more backplanes can be removed provided they are neighbours without disrupting the supply to other backplanes Make the connections as shown in F...

Page 26: ...S232 or USB for serial communication however this interface type does not allow the communications network to extend beyond 10 to 20 metres in length MTL have chosen to use an RS485 serial interface w...

Page 27: ...ng it is suggested that the same colour convention is used for all connections to backplane terminals A and B e g red to A black to B NOTE No damage will occur if the signalling lines are connected wi...

Page 28: ...ress switches are binary coded and the address is set by constructing the required number from the switch options provided i e 1 2 4 8 16 and 32 For example address number 29 would be set by putting s...

Page 29: ...s occurred 2 Check that backplane power LEDs are ON If not check the power supply fuse s and if necessary change any of them 3 Check that the PWR power LED on the MTL4850 54 module is ON If not and th...

Page 30: ...y undertake the tests and routine maintenance described in sections 6 2 and 6 3 If an MTL4500 module is judged faulty repairs or modifications MUST NOT be made as these may affect the intrinsic safety...

Page 31: ...system to pass HART data to any IMS that utilises the FDT DTM concept The DD and DTM files are free of charge and can be downloaded from the MTL website at www mtl inst com product hart_software 7 3...

Page 32: ...with the appropriate European national and local regulations which may include reference to the code of practice IEC EN 60079 14 In addition particular industries or end users may have specific requir...

Page 33: ...the Declaration of Conformity on page ii these products are included in the ATEX Cat3 certificate number MTL08ATEX4850X 9 APPENDIX A TYPICAL COMPATIBLE SYSTEMS MTL offer a range of backplanes for mou...

Page 34: ...update 12V Supply out of range Check power supply to multiplexer is within specification Return to MTL if alarm persists 12V Supply out of range Return to MTL if alarm persists VBias out of range Retu...

Page 35: ...MTL if alarm persists Sequence error Main initialisation Return to MTL if alarm persists Sequence error Main startup Return to MTL if alarm persists Sequence error First Field I O Return to MTL if ala...

Page 36: ...22 73 98 12 0 Fax 49 0 22 73 98 12 2 00 E mail mtlgmbh eaton com INDIA MTL India No 36 Nehru Street Off Old Mahabalipuram Road Sholinganallur Chennai 600 119 India Tel 91 0 44 24501660 24501857 Fax 91...