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Multitek MULTIGEN M820-GM Series Operating Manual

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MULTIGEN
M820-GM*
&
M830-SM*
OPERATING MANUAL

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Summary of Contents for Multitek MULTIGEN M820-GM Series

  • Page 1 MULTIGEN M820-GM* & M830-SM* OPERATING MANUAL...
  • Page 2 CONTENTS 1. INTRODUCTION 2. OPERATION 3. SCREEN DISPLAYS 4. PROGRAMMING PARAMETERS 5. INSTALLATION 6. CONNECTION DIAGRAMS 7. VIEWING ANGLE 8. RS 485 COMMUNICATION 9. SPECIFICATION 10. APPENDIX A . Pressure sender types. APPENDIX B. Temperature sender types. Revision 4 Date 2-9-2005...
  • Page 3 1.1 General The MultiGen M820-GM* series & M830-SM* series are compact 96 x 96 mm Din case 3 phase generator monitoring meters, The M820-GM* series measure Volts, Amps, Frequency, Coolant Temperature, Pressure, Hours Run, DC volts, and provide relay outputs for temperature and pressure.
  • Page 4 1.2 Memory Calibration and setup parameters including current and voltage ratios, calibration constants, sender ranges etc. are stored in a non volatile e prom. In power down (power loss) conditions all the information is retained. The e prom requires no battery or other circuitry to maintain the stored data.
  • Page 5 2. OPERATION The MultiGen is designed to be user friendly and simple to use. There are only two control buttons on the front of the instrument. All MultiGens are fully programmed by the factory. The MultiGen is ready for use once it has been installed (see section 5), connected to the system that's to be measured (see section 6) and power applied.
  • Page 6 3. DISPLAY SCREENS 3.1 The MultiGen can be programmed for either single phase load, a 3 phase 3 wire unbalanced load or a 3 phase 4 wire unbalanced load. The sequence of the parameters displayed is dependent on the system that has been programmed into the MultiGen. 3.1.1 When the MultiGen is powered up the following screens are shown if it has been programmed for 3 phase 4 wire unbalanced (M820-GM9) :-...
  • Page 7 ACTION : Press 855.0 756.9 COMMENTS : 832.1 The third screen shows 3 phase current L1, L2, L3. If MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM button is pressed the MultiGen goes back to the previous screen. ACTION : Press 60.02 COMMENTS :...
  • Page 8 ACTION : Press COMMENTS : °F The sixth screen is the 9564 custom screen. This allows MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM the user to define the 3 parameters to be displayed. (See programming section 4.1.2) 3.1.2 3 phase 3 wire unbalanced load screen sequence (M820-GM4).
  • Page 9 ACTION : Press 250.5 50.2 COMMENTS : 23.12 The 2nd screen shows Amps, Hz & hour run. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 2.50 96.9 °C COMMENTS : 11.88 The 3rd screen shows oil pressure, coolant MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM temperature and DC volts...
  • Page 10 3.1.3 Screen sequences for the M820-SM series (Note the SM series only measures Volts Amps & Hz) are as follows :- For the M830-SM9 3 phase 4 wire unbalanced load the sequence will be the same as detail 3.1.1 but without Pressure, Temperature, Hours Run, DC Volts measurements.
  • Page 11 4. PROGRAMMING All units are fully programmed by the factory but there are many features that can be programmed by the User to suit individual applications and needs. Programmed values and parameters are stored in non volatile memory and are therefore retained in power down situations.
  • Page 12 4.1.2 Customising display ACTION : Press & simultaneously, screen and hold for 5 seconds COMMENTS : MultiGen is now in screen set MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM up mode. ACTION : Press sELECT v COMMENTS : Screen is now in set up MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM mode for the 1st line.
  • Page 13 ACTION : Press sELECT COMMENTS : Screen is now in set up mode for the 2nd line. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press sELECT °C COMMENTS : Pressing scrolls through the different parameter MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM options available on line 2.
  • Page 14 ACTION : Press °C COMMENTS : sELECT Pressing scrolls through the different parameter MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM options available on line 3. e.g. V, A, h, Vd.c. When required parameter is displayed press ACTION : Press sCREEN COMMENTS : This indicates programming...
  • Page 15 from 5A to 1A. The same applies to the voltage if theMultiGen input voltage is 230 volts L.N. then an external voltage transformer ratio can be programmed as long as the nominal input to the MultiGen remains at 230 Volts L.N. 4.2.1 Programming nominal voltage inputs.
  • Page 16 ACTION : Press 230.000 COMMENTS : Pressing scrolls the digit with the cursor flashing below it from 0 to 9. When MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM the digit required is displayed Press to store. In this example 0 is required so Press when zero is displayed.
  • Page 17 ACTION : Press 010.000 COMMENTS : Cursor moves to 3rd digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 011.000 COMMENTS : Press and scroll until 3rd digit shows 1. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 011.000...
  • Page 18 ACTION : Press 011.000 SELECT COMMENTS : Display shows either V, kV, MV, depending on which MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM was programmed by the factory, and the message SELECT. Pressing scrolls through these 3 options V, kV, MV i.e. SELECT the option.
  • Page 19 ACTION : Press 011.000 SELECT COMMENTS : Press if input required is MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM 4.2.2 Programming current inputs. Once the voltage input has been set and is pressed the screen goes to the currrent setting. ACTION : Press 100.000...
  • Page 20 ACTION : Press 100.000 COMMENTS : Continue pressing until the 1st digit shows 2. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 200.000 COMMENTS : The cursor moves to the 2nd digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 250.000...
  • Page 21 ACTION : Press 250.000 COMMENTS : The cursor will move to the 3rd digit. In this example MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM 3rd,4th,5th and 6th digit require 0 so if is pressed 4 times the cursor moves along the 3rd,4th,5th and 6th digit without altering them.
  • Page 22 ACTION : Press 250.000 SELECT COMMENTS : Press if input required is MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 250.000 SELECT COMMENTS : Press if input required is MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press SCREEN...
  • Page 23 4.3 RS485 data output port setting. (If RS485 option has not been purchased move to section 4.4) The RS485 programming mode allows the user to set Baud Rate,Parity, and Address. Thenumber of stop bits is automatically set when parity is set. 4.3.1 Setting Baud Rates ACTION : Press...
  • Page 24 ACTION : Press Baud rate COMMENTS : 4800 Press if the baud rate required is 4800. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press Baud rate COMMENTS : 9600 Press if the baud rate required is 9600. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION :...
  • Page 25 4.3.2 Setting Parity ACTION : Press parity COMMENTS : The MultiGen is now in the parity setting m o d e . The MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM NO parity. Pressing scrolls through the options n, E, O. Press if NO parity is required.
  • Page 26 4.3.3 Setting the Node Address. The number of node addresses available is 1 to 247. Each individual MultiGen that is to be connected to a common bus must have its own unique node address. ACTION : Press 000001 COMMENTS : The MultiGen is now in the node address setting mode.
  • Page 27 Example to set node address to 182 :- ACTION : 000101 Press COMMENTS : Press until the 4th digit MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM shows 1. ACTION : Press 000101 COMMENTS : The cursor now moves to the 5th digit.
  • Page 28 ACTION : Press 000181 COMMENTS : The cursor now moves to the 6th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press 000182 COMMENTS : Press until the 6th digit shows 2. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press SCREEN...
  • Page 29 4.4 To terminate programming for M830-SM* units i.e. units without sender inputs. Once the programming has been completed there are two options available either to end (END) programming and return to the measuring function or to cancel (CANCEL) all the data entered whilst in the programming mode.
  • Page 30 4.4.2 To cancel data entered. ACTION : Press 4 times CANCEL COMMENTS : The MultiGen is now in the CANCEL mode. This enables the user to cancel all data MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM that has been entered whilst in the programming mode.
  • Page 31 4.5. Programming of pressure and temperature sender type inputs M820-GM* continuing on from section 4.3.3 page 4.5.1 Programming pressure sender type. ACTION : Press 3 times pressr COMMENTS : type The MultiGen is now in the pressure sender type mode. This enables the user to MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM...
  • Page 32 ACTION : Press select COMMENTS : sender Press until the number that corresponds to the manufacturers sender MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM required as shown in Appendix A. In this example 02 ACTION : Press SCREEN COMMENTS : This indicates that pressure sender type has been MultiGen GENERATOR MONITORING SYSTEM...
  • Page 33 ACTION : Press select sender °F COMMENTS : If third line of text is a number other than 00 then the MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM unit has been programmed for a designated manufacturers sender. See Appendix B this defines which number equals which manufacturers type.
  • Page 34 4.5.3 Programming of custom pressure sender. A custom sender is any sender that is not listed in Appendix A. To complete this the user will need to have 5 points from the resistance curve of the sender that correspond to pressure values. These values can be obtained from the sender manufactuer see example :- Pressure PSI...
  • Page 35 ACTION : Press select sender COMMENTS : If third line of text equals 00 the unit is already in MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM custom mode, if not proceed to next action ACTION : Press select COMMENTS : sender Press until the number...
  • Page 36 ACTION : Press pnt 1 0000 COMMENTS : The Multigen is now in custom sender mode, and point 1 (pnt 1) has to be MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM programmed.Point 1 = 0 psi (0000).The cursor flashes under the 2nd digit.
  • Page 37 ACTION : Press pnt 1 0000 COMMENTS : Pressing and scroll until 3rd digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press pnt 1 0000 COMMENTS : The cusor moves to the 4th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 38 ACTION : Press pnt 2 0000 COMMENTS : The Multigen is now ready to program point 2 (pnt 2) MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM The cursor flashes under the 2nd digit. In this example second point is 40 psi (0040) ACTION : Press...
  • Page 39 ACTION : Press pnt 2 0040 COMMENTS : Press scroll until the 3rd digit shows 4. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press pnt 2 0040 COMMENTS : The cusor moves to the 4th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 40 The second point is now programmed for the pressure reading. The next set of operations are to program the pressure values for the 3rd 4th and 5th points. The sequence of actions for programming points 3, 4 and 5 are identical to programming point 1 as shown on pages 35 to 37.
  • Page 41 ACTION : Press res 1 0200 COMMENTS : Pressing scrolls the digit with cursor flashing below it MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM from 0 to 9. When the digit required is displayed Press to store. In this example the 1st point 220 ohms, (0220) corresponding to 0 psi .
  • Page 42 ACTION : Press res 1 COMMENTS : 0220 The cusor moves to the 4th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press res 1 0220 COMMENTS : Pressing and scroll until 4th digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 43 ACTION : Press res 2 0100 COMMENTS : In this example 1 is required so Press until 1 is displayed. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press res 2 0100 COMMENTS : The cursor moves to the 3rd digit.
  • Page 44 ACTION : Press res 2 0110 COMMENTS : The cursor moves to the 4th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM The second resistance value is programmed. Then next set of operations is to program the resistance values for the 3rd 4th and 5th points.
  • Page 45 ACTION : Press SCREEN COMMENTS : This indicates that the required custom pressure MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM sender has been programmed. 4.5.4 Programming of custom temperature sender. A custom sender is any sender that is not listed in Appendix B.
  • Page 46 Programming custom temperature sender, (First diagram below shows actions shown in section 4.5.2) ACTION : Press 4 times tde9 COMMENTS : type The MultiGen is now in the temperature sender type mode. This enables the user MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM to select manufacturers sender types...
  • Page 47 The following sequence of events shows programming of 5 temperature points that correspond to the 5 resistance values as shown in table on page 45. The first point that is programmed must always be the point that corresponds to the lowest temperature value. In this example it is 100 °F and 100 °F = 950 ohms.
  • Page 48 ACTION : Press pnt 1 °F 0100 COMMENTS : The cursor moves to the 3rd digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press pnt 1 0100 °F COMMENTS : Press and scroll until 3rd digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION :...
  • Page 49 ACTION : Press pnt 1 0100 COMMENTS : Press and scroll until 4th digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press pnt 2 °F 0000 COMMENTS : The Multigen is now ready to program point 2 (pnt 2) MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM The cursor flashes under...
  • Page 50 Note first diagram shown below shows the last screen and action in programming the 5th point of temperature point. ACTION : Press pnt 5 02oo °F COMMENTS : Press scroll until the 4th digit shows 0 . MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 51 ACTION : Press res 1 0900 COMMENTS : Pressing scrolls the digit with cursor flashing below it from 0 to 9. When the digit MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM required is displayed Press to store. In this example the 1st point 950 ohms, (0950) corresponding to 100 °F.
  • Page 52 ACTION : Press res 1 COMMENTS : 0950 The cursor moves to the 4th digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press res 1 0950 COMMENTS : Pressing and scroll until 4th digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 53 The second resistance value is now ready to be programmed. Then next set of operations are to program the resistance values for the 2nd, 3rd, 4th and 5th points. The sequence of actions for programming points 2, 3, 4, 5 are indentical to programming point 1 as shown on pages 50 to 52.
  • Page 54 4.6 Programming of pressure and temperature sender to indicate psi or bar °F or °C . 4.6.1 Programming pressure sender to read psi or bar. ACTION : Press 5 times pressr COMMENTS : The MultiGen is now in the pressure selection mode this enables the user to select MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM...
  • Page 55 ACTION : Press pressr select COMMENTS : Press if bar is required. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press SCREEN COMMENTS : Indicates that pressure parameter has been MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM programmed.
  • Page 56 ACTION : Press tde9 select °C COMMENTS : The display shows either °C or °F. Pressing scrolls MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM between °C and °F. ACTION : Press tde9 select °F COMMENTS : Press if °F is required. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION :...
  • Page 57 ACTION : Press SCREEN COMMENTS : Indicates that temperature parameter has been MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM programmed. 4.7. Programming of pressure and temperature relay set points. 4.7.1 Programming pressure relay set point. ACTION : Press 7 times pressr COMMENTS : setpnt...
  • Page 58 To change from 4 bar to 2 bar :- ACTION : Press setpnt COMMENTS : 0004 Pressing scrolls the digit with the cursor flashing below it from 0 to 9. When MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM the digit required is displayed Press to store.
  • Page 59 ACTION : Press setpnt 0004 COMMENTS : Cursor moves to 3rd digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press setpnt 0004 COMMENTS : Press and scroll until 3rd digit shows 0. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press setpnt...
  • Page 60 ACTION : Press SCREEN COMMENTS : Indicates that pressure set point has been programmed. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM 4.7.2 Programming temperature relay set point. ACTION : Press 8 times tde9 COMMENTS : setpnt The MultiGen is now in the temperature set point setting mode.
  • Page 61 To change from 75 °C to 125 °C :- ACTION : Press setpnt COMMENTS : 0075 °C Pressing scrolls the digit with the cursor flashing below it from 0 to 9. When MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM the digit required is displayed Press to store.
  • Page 62 ACTION : Press setpnt 0175 °C COMMENTS : Cursor moves to the 3rd digit. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press setpnt 0125 °C COMMENTS : Press and scroll until 3rd digit shows 2. MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press...
  • Page 63 ACTION : Press SCREEN COMMENTS : Indicates that temperature set point has been MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM programmed. 4.7.3 Pressure relay and pressure icon operation. The pressure relay contact is closed when there is no auxiliary power supplied to the unit. When auxiliary power is applied to the unit, the relay contact stays closed until the pressure reaches the preprogrammed set point plus a 5% hysteresis margin.
  • Page 64 4.8 Resetting of the hours run (run time) counter to zero. ACTION : Press 9 times hrun COMMENTS : The MultiGen is now hour run (run time) set mode MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM ACTION : Press RESET hrun COMMENTS :...
  • Page 65 ACTION : Press SCREEN COMMENTS : Once have been pressed the display shows MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM SCREEN indicating the hour run counter has been set. 4.8 To terminate programming for M820-GM* units i.e. units with sender inputs. Once the programming has been completed there are two options available either to end (END) programming and return to the measuring function or to cancel (CANCEL)
  • Page 66 ACTION : Press 230.0 229.9 COMMENTS : 230.1 All data that has been entered during MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM programming is stored and MultiGen has now returned to measuring mode. 4.4.2 To cancel data entered. ACTION : Press 11 times CANCEL...
  • Page 67 ACTION : Press 230.0 229.9 COMMENTS : All the information entered 230.1 whilst in the programming MultiGen GENERATOR MONITORING SYSTEM MultiGen GENERATOR MONITORING SYSTEM mode has been cancelled and the MultiGen has returned to the measuring mode. ACTION : Press SCREEN COMMENTS : None of the data entered has...
  • Page 68 5. INSTALLATION 5.1 Case The MultiGen is designed for panel mounting and uses a standard 96 x 96 DIN case. CASE DIMENSIONS FRONT PANEL CUTOUT 96 mm 92 mm (+ 0.8 mm) 92 mm 96 mm (+ 0.8 mm) SIDE 144 mm 6 mm 133 mm...
  • Page 69 5.2 Auxiliary Supply The auxiliary supply can be connected in parallel with the measuring input voltage, but this restricts the measuring range of the input voltage to ± 15% of nominal. If auxiliary is separate the measuring range of the voltage input is 20-120%.
  • Page 70 WARNING : The secondary of a current transformer must never be allowed to be in an open circuit condition when the primary is energized. In the open circuit condition high voltage may be present. Each current transformer secondary should be short-circuited when not connected to the meter.
  • Page 71 6. CONNECTION DIAGRAMS 6.1 All connections must be made as shown ensuring all starts and finishes of current and voltage transformers are connected as shown. SINGLE PHASE SINGLE PHASE 3 WIRE Wiring Reference Note : k = X2 K = X1...
  • Page 72 3 PHASE 3 WIRE UNBALANCED LOAD 3 PHASE 4 WIRE UNBALANCED LOAD Wiring Reference Note : k = X2 K = X1 6.2 It is possible to connect the MultiGen to external voltage transformers (P.T.s) (see programming section)
  • Page 73 7.0 Contrast / Viewing angle adjustment. It is possible to adjust the MultiGen display contrast / viewing angle if the product is to be mounted in an unusual position. The MultiGen is calibrated to give the best contrast and viewing with the product mounted in a panel at a height of 1.6 metres and viewed square on (12 o'clock).
  • Page 74 8.3 MultiGen Modbus Protocol 8.3.1 Physical Connections The interface to the Modbus network is via RS485 connection. This takes the form of a twisted pair cable preferably screened, onto which up to 32 devices may be connected, one of which will the host PC or controller node.
  • Page 75 Address range: 1-247 Error Check : Cyclic Redundancy Check (CRC), Polynomial exclusive OR value A001h Low byte sent first. 8.3.5 Modbus Protocol Only the RTU (Remote Terminal Unit) form of the Modbus protocol will be supported and all references in this sheet refer to RTU format.
  • Page 76 CRC-16 (Cyclic Redundancy Check) The step by step procedure to form the CRC-16 check bytes is as follows : 1. Load a 16-bit register with all 1's. 2. Exclusive OR the first 8-bit byte with the high order byte of the 16-bit register, putting the result in the 16- bit register.
  • Page 77 1100 1111 1111 1110 Shift 3 0110 0111 1111 1111 Shift 4 0011 0011 1111 1111 Polynomial 1010 0000 0000 0001 1001 0011 1111 1110 Shift 5 0100 1001 1111 1111 Shift 6 0010 0100 1111 1111 Polynomial 1010 0000 0000 0001 1000 0100 1111 1110 Shift 7 0100 0010 0111 1111...
  • Page 78 1001 0010 0000 1000 Shift 6 0100 1001 0000 0100 0 Shift 7 0010 0100 1000 0010 0 Shift 8 0001 0010 0100 0001 0 HEX 12 HEX 41 Transmitted message with CRC-16 (Message shifted to right to transmit) 0001 0010 0100 0001 0000 1111 0000 0010 Last bit TRANSMISSION ORDER...
  • Page 79 8.3.7 Codes Supported Function 3 (03 hex) Read holding registers. (4X) Function 4 (04 hex) Read input registers. (3X) Function 16 (10 hex Preset Multiple register. (4X) Function 17 (11 hex) Report slave ID BROADCAST is not supported and this command does not cause the slave to respond to the master.
  • Page 80 Response from slave format: Node Addr][04][Byte count][Data (byte count bytes)][CRC(2 bytes)] The table below lists the parameter with the Modbus equivalent address and its address within the MultiGen. Any data requested that isn't applicable to the conditions column will return the value -ve infinity (FFFFFFFFh) 3X REGS Registers...
  • Page 81 The table below lists the parameter, its Modbus equivalent address and its address within the MultiGen. Any Illegal operation will return an Error code 4X REGS Modbus Reg Start Read (code 3) Write (code 16) Name Addr. Addr. (dec) (hex) Sys.
  • Page 82 Example. To obtain System Volts & System Amps on Node Packet from master format : Start at system voltage (0000), request 2 regs (0004 words) [23][03][0000][0004][CRC(2 bytes)] Response from slave format ; [23][03][08][8 bytes of data(2 regs x 4 bytes)] [CRC (2 bytes)] To set both System Volts and System Amps on Node 23h Packet from the master format :...
  • Page 83 Report Slave ID Register Packet Position Name (register No.) Slave ID 0000 820 or 830 Internal use only 0001 Parity Errors 0002 0-255 counter. Resets to zero on count 256 CRC Errors 0003 0-255 counter. Resets to zero on count 256 I.D.
  • Page 84 9. MULTIGEN SPECIFICATIONS INPUT Rated Un Direct connected voltages between 57.8 and 600 v. Standard voltages offered :- 63.5/110 V, 69.3 / 120 V, 120 / 208 V, 220/380 V, 230 / 400 V, 240 / 415 V, 277 / 480 V, for 3 ph 4 w 110 V, 120 V, 380 V, 400 V, 415 V, 440 V, 480 V, 600V for3 ph 3 w Accuracy Range...
  • Page 85 PARAMETERS DISPLAYED Volts L1-L2,L2-L3,L1-L3 (3 ph 3 & 4 wire) L1-N,L2-N,L3-N (1 ph & 3ph 4wire) Amps L1,L2,L3 Frequency System frequency L1-N or L1-L3 Coolant temperature (deg F or deg C) Oil pressure (bar or psi) Hours run (run time) DC volts (battery volts) AUXILIARY AC Voltage...
  • Page 86 INSULATION Test Voltage 4 kV RMS 50 Hz for 1 min between inputs / case / relay output. ( 2.5kV between RS232 output / inputs / case / relay ) Impulse Test EMC 5kV transient comply with IEC 801 / EN 55020 HF interference EHF 2.5 kV 1 MHz comply with IEC 255-4...
  • Page 87 ENVIRONMENTAL Working Temperature 0 to +50 deg C Function Temperature -5 to + 60 deg C Storage Temperature -10 to +65 deg C Temperature Coefficient 0.01% per deg C Relatively Humidity 0-95% non condensing Warm up time 1 min. Shock 10g in 3 planes ENCLOSURE Standard DIN case DIN 96 x 96 x 98mm...
  • Page 88 APPENDIX A Preprogrammed pressure senders. If M820-GM1, GM4, GM9 units are ordered with relay outputs, but without setpoints being specified the factory will set them as shown in the table below :- Note see sections 4.5 for programming. PRESSURE : Code Manuf./ Type No Range Set Point...
  • Page 89 APPENDIX B Preprogrammed temperature senders. If M820-GM1, GM4, GM9 units are ordered with relay outputs, but without setpoints being specified, the factory will set them as shown in the table below :- Note see section 4.5 for programming. TEMPERATURE : Code Manuf / Type No Range Set Point...
  • Page 90 TRANSDUCERS, MONITORING RELAYS, DIGITAL PANEL METERS, PANEL MOUNT EARTH LEAKAGE RELAYS, PANEL MOUNT 3 PHASE CURRENT RELAYS multitek ® Multitek Ltd. Lancaster Way, Earls Colne Ind. Park, Earls Colne, Colchester, Essex. CO6 2NS. England. Tel. +44(0)1787223228 Fax. +44(0)1787223607 E-MAIL: sales@multitek-ltd.com WEB SITE: www.multitek-ltd.com...

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