Technical description MT24
Contents
1. Ld p b gt H s gt gt f P b 4 gt H gt 5 p R g 3 s b d gt gt H 4 a gt g a H r gt a J 2 2 gt A z H 4 z b gt Hi gt p gt gt gt H d gt gt gt p p gt a 2 gt H gt A z p gt a gt gt 5 A H p z n gt P gt gt a AOO A E E E S O E E AA a gt gt gt p gt s gt gt gt b A gt s p gt gt s gt gt d rErErrAFETEAPZTETETEATATETNAFATATEZPAPATETPAPETETEAFATETEITAPATEETATATENBEPATETEETETAYETPIPETEIEEPEFETEATAYEFNEFATATEZPEFATETBAPETETEEFAPETEITAPETETEATAFETEITAZSTRETATAYETPEFETEIETFSFETEITATAFAIYATATE d y A T e As the MT24 module is not furnished with any disconnector a main disconnector must be connected in its input terminals 3 pole minimum the protection wire must not be disconnected The main disconnector must easily accessible and properly marked The MT24 module line as well must be fused by fuses or breaker according to conductor cross section CONNECTION OF INPUT OUTPUT TERMINALS AND RS232 BUS The module has three serial RS232 lines Two of them are dedicated to operation communication with a PC programmable automat or with other MT24 module Both use a hardware RTS a CTS control The line 11 COMO is completely galvanically isolated from the MT24 The line 10 COM1 is galvanically conne2. L1 A L2 O L3 E N PE Warning Just one pair on a set up transmission frequency can be operated within a circuit of one distribution transformer in this mode When several pairs should be operated maximum 3 pairs then each pair must use different transmission frequency Frequencies in the range of 95kHz to 145kHz can be used Manufacturer sets the frequency up according to customer requirement NETWORK MODE PRINCIPLE ic MT24 RS232 PLC a ae vill ill lll _ MT23R PLC 4 pomama ngo CPM Perit To set up the MT24 K modem in modes 2 and 3 a RSET V1 0 7 P2 RSET V1 0 9 P2 software is used OPERATION ERRORS Various error states of the module can arise in the course of operation Some of basic error states and their trouble shooting are given as follows Nr Indication LED Trouble description Trouble shooting status 1 No LED is lit modul neni napajen me Check all fuses in power leads Check connection leads for good connection Learn if the equipment is not disconnected in the control room Send a module to be serviced 2 CONTROL Module does not Check if the PLC transmission from MT23 is active and POWER is lit communicate Check if the carrier frequency in PLC network e g 85 kHz is same other LEDs do Check all fuses in communication connection branching not blink Check connection cables Check if the equipment is not disconnected in the control room Send
3. a module to be serviced 3 CONTROL module communicates Learn if the PLC transmission from MT23 is in the set up mode and POWER is lit sporadically Check if the carrier frequency in PLC network e g 85 kHz is same other LEDs blink Check the PLC signal level and noise in connection point sometimes it 4 CONTROL module does not communicate Check if the RS232 cable is properly connected and POWER is lit with PC i a Communication rate set up other LEDs blink RS232 data format set up sometimes Proper usage of RSET R software Send a module to be serviced OTHER AUXLIARY FUNCTIONS Beacon function System enables very unique and simple communication test The result of this test may be a map of communication over power line network The map may enable a design of a final version of modules placement and system expansion or failure analysis simplification in the future MT24 modul is furnished by Beacon function By a single plug in of Beacon connector into COM1 RS232 communication port the module will switch over to the state of permanent contacting of MT22 MT23R modules or other ones So it is possible to prove a communication between two points of power network by means of two modules without any preparation and without a PC This makes possible to obtain a map of local energy node communication and choose an optimal PLC communication set up together with customer s requirements Also a simple function test of
4. EER ER EES ED EP EEPED ERE PDE EEPEP PES ERER EHD EAPPDEEEPERPED EE EAAP ERA EPERE EES ERER PES EP ERA ED REPRE x p gt k A ba gt a gt fod P gt e s P f L1 a Ld 9 p bd A p 9 A L p s gt a b d p gt gt gt gt gt a ojistky Pojistky gt we 5 gt a A y hi F podle privoduk MT24 a gt p gt ad gt a gt gt gt gt gt gt gt ow m q Ainava gt Hlavni odpojova La p gt gt gt a gt d e 7 gt gt bd gt r d La gt gt gt gt r gt h p gt a Ed k gt a gt p Fl hh a ae tel dee lal RhA hh hhh h gt h gt hhh ha h gt A A E E EE E E A E E EE E a E EE E E baeP eRe he eRe Lites Lois Cle dadel eed Ll 9 H 5 gt a s gt gt gt P gt gt gt p z gt gt z 4 gt gt gt gt b 2 s gt gt s H gt b gt H gt z s gt a s gt H gt A z A gt gt 4 gt gt gt gt a gt gt 2 H gt a A 2 s p gt 5 gt b gt p mmn Er a gt A z Ld gt a a gt gt p H a gt a L a gt gt gt L a J gt a Ld gt H B gt e gt a 5 gt b ka A fd b j3 gt gt gt A p a
5. MT24 module can be done by this way As soon as beacon is inserted in COMI the module begins blinking the yellow LED Tx PLC Even a reception red LED of power input blinks at the same time MAIN PARAMETERS Power supply input Voltage Frequency Input power standby transmitting Signal inputs individually Voltage connected Frequency Current at 230V 50Hz High frequency signal Carrier frequency range Amplitude into Rz 10Q Current Input sensitivity S N ratio Values storage RS 232 COM2 Connector Transmission rate Application Hardware control Galvanic isolation RS 232 COM1 Connector Transmission rate adjustable Data format Application Hardware control Galvanic isolation RS 232 COMO Connector Transmission rate adjustable Data format Application Hardware control Galvanic isolation Climate environment Operation temperature Limit temperature Storage temperature Protection Equipment complies with norms 8 N 1 230 V 10 15 50 Hz 3 cca8 VA cca 12 VA to 20 VA according to mark space transmission ratio 0 to 230 V 10 15 0 to 60 Hz cca 35 mA cosa 0 95 kHz 145 kHz cca 10 Vx cca 0 8 Ags cca 1 mV min 9 dB NE cannon 9 male 115200 Bd data transmission toward PC service mode NO NO cannon 9 male 300 to115200 Bd 8 N 1 data transmission toward PC PLC YES NO cannon 9 male 300 to 115200 Bd 8 N 1 data transmission toward PC PLC
6. Technical description MT24 User manual WARNING The equipment makes a compact set of the switchboard Just this set is safe from the point of electrical shock Therefore do not use other power supplies or circuits than mentioned in this direction The equipment is continuously powered from 230V 50Hz network From this reason any manipulation with the cabinet leads or parts inside requires extensive care and can be executed just by an authorized person 6 The equipment is sufficiently covered just in an IP65 installation box against water and high dampness IP65 dust proof water jetting resistant The protection itself is IP30 Do not place the equipment necessarily in close vicinity of heat sources heat guns hot air equipment etc arbitrary changes of operation and servicing can cause equipment function deterioration or destruction GENERAL INSTRUCTIONS GENERAL DESCRIPTION It is intended for using within LV 3x230V 50Hz distribution network as an over line transfer unit It can work in several modes that are set up by the manufacturer according to customer s requirement The first mode is a three phase router and a signal amplifier It enables messages routing among ModemTec PLC modems It is mainly used for PLC modules communication via distribution transformer or a very low impedance node It can obviously be used anywhere where the signal is to be branched out into more phases max three phases disregarding
7. YES YES normal 30 C to 60 C 40 C tot 70 C 40 C to 70 C IP 30 CSN EN 61010 1 CSN EN 60529 CSN EN 61000 6 2 CSN EN 61000 6 3
8. cted with MT24 Both links route through a Cannon 9pin connector to the outside installation box wall The third RS232 line COM2 is a simple one without hardware control with no galvanic isolation MT Se ee E l l l phase l L1 pa 3 phase output gt lt amplifiers l l l L2 L 3 phase input gt Active filters and converters Galvanic isolation L3 ra l lt RS 232 o R i mD 1 CD o N i 2 RXD l 3 TXD m rocessor PIR 20 3x buffer een 3 RS232 l 6 DSR 3 Z 7 RTS i 8 CTS 9 RI S O Y 50 l Ss galvanic isolation 230V L L amplifier lt P transmitter l l l RS 232 serial link serves for MT24 parameters set up Used 115200 Bd transmission rate does not allow a long interconnection cable cca 2 m according to internal cable core parasitic capacity Protocol used 8 bits no parity 2 stop bits REPEATER SIGNAL AMPLIFIER PRINCIPLE Mode 1 ModemTec PLC modems are associated intro logic segments in the PLC network The modems communicate directly inside of individual segments The communication among the segments runs by means of MT24 series routers Example of routing between two MT23R modems MT23R MT23R Local Ad 1 7 Local Ad 2 Remote Ad 2 Remote Ad 1 Segment 1 Segment 0 PATITI Routing between two MT23R modems upon different phases On the picture is a connection of two MT23R connected upon different phases communicating t
9. hrough MT24 router The first MT23R is located in 0 segment and the other MT23R in 1 segment Routing table in the MT24 has the following contents FROM TO SRC SEGMENT DST SEGMENT As far as the router catches a message having a sender address in an interval from to and sender s segment equals to the src segment column source segment the router will change the segment value to the one of dst segment column destination segment and will repeat the message Terminal modems process just such messages which have equal both segment 1 and segment 2 addresses In order the mechanism is functional each equipment must have assigned a unique address in the course of PLC network PROGRAMMING STATE Prior to MT24 module usage a routing table must be set up It is aligned through a RS232 serial port by means of PC and RSET R set up software Routing procedure in detail is described in the document PLC MT24 series routers configuration Configuration example in RSET R RSET R V1 0 3 P4 0 x General PLL Routing From Src seg Dest Modify t ot E eo 2 Wo write flash Fom __ To _ Se segmen Dest segment_ __ 1 3 z E 0 0 0 0 0 0 0 0 0 0 0 22a es AGAGA GA G G aG a NA d OOO Oo Ooo oy Ooo oa A yo A co OPO Oo oOo oo yop oy co hoo co PAIR MODE PRINCIPLE Mode 2 Just two modules can communicate between each other MT24 1 RS232 PLC 1 MT24 2 RS232 PLC 2
10. phase sequence Voltage level of 230V AC must be kept however Even several repeaters in various nodes can be used Very far reaching PLC network can be established by means of MT24 series routers including network where a signal must be routed among particular phases Second mode is a pair communication between two MT24 or MT24 and MT23R It is a data transmission from one place to another Any device like PC programmable automats or other equipment having RS232 communication link can be connected to MT24 A third mode represents a network communication This mode enables to establish a far reaching data communication network among one control center and several slave stations Operation state It is a basic function of the equipment The MT24 monitors the network in this state evaluates an address and in case of the proper address repeats a message over connected phases all at once with the maximum amplitude Subsequently it awaits another message reception MT24 is multidirectional It can make reception from any phase and transmission over all phases MT24 can communicate just with PLC modules working on the same communication frequency In the pair communication mode the MT24 passes immediately data from RS232 RX toward other MT24 pair modem That one will receive and retransmit them to RS232 output link In the network communication mode all is conformed to the main control station that distributes data to individual slave stations and possibly respond
11. s to their answers Programming state It is a state in which equipment parameters are set up It consists of computer connection to MT24 module over serial port and its direct programming by means of RSET R set up software The description of that can be found in PLC routers of MT24 series configuration The equipment will work reliably just in an environment given in this service manual Any Beacon function see chapter Other auxiliary function PANEL DESCRIPTION AND ITS SIZE Main board description 400mAT primary fuse 2 5AT secondary fuse CTS COM1 indication RTS COM1 indication 230 V 50Hz lin 3V real time battery voltage connectid POWER supply indication terminal sae See ssi see Tx PLC transmission indication r i Rx PLC reception indication Control processor status indication indikace sign lu v p smu 95 a 145 kHz s amplitudou gt 2 Vx connection terminals phase L3 N phase LI N phase can be connected anyhow 1AT fuses Indication elements description Power supply indication indicates MT24 connection to 230V line voltage and presence of 19VDC output voltage Processor Control status indication indicates the main board CPU status when lit the system is OK Tx PLC transmission indication indicates transmission status from the processor toward MT24 power amplifier when lit transmission is on Rx PLC reception indication indicates proces
12. sor reception status from the front end MT24 amplifier when lit the reception is on The MT42 main board is placed inside of ABB 00878 box sized 310 x 240 x 110mm with a transparent screw on lid P55protection After system assembling inside the box the protection becomes a IP30 BOX INSTALLATION MT24 module electrical installation basic design CYKY 1 5 Line feeder CYKY 230V 50Hz 3x1 5 1 WAGO 280 607 protection terminal 280 331 terminal 2 WAGO 280 602 blue terminal 3 WAGO 280 612 grey terminals 4 DIN 35 ribbon length as per box size 5 Cannon 9 pin RS232 connector for communication with PC service COM2 6 OBO V TEC Pg 7 cable outlets and or leak proof side box outlets can be used 8 DIN 35 ribbon end stop WAGO 246 116 9 ABB 00 878 box with a transparent screw on lid IP55 protection IP55 10 Cannon 9 pin RS232 connector for communication with PC COM to beacon connection 11 Cannon 9 pin RS232 connector for communication with PC COMO galvanically isolated exclusive communication port Similar parts with equivalent parameters of other manufacturers can be used Each of phase output terminals can be connected to various phases or even to different networks having up to the voltage of 230VAC TN C 3 x 230V 50Hz PEN voltage system PAPPEPEPEP AEA EPDPARA RAPE EPA EE EP ERAE DEAD ERED ED ERE EDEPR EPAPER SEPEP EES RAPE EEE EAEE PPE EEEREP ERD EDERA EP EPERARAEPEPER AR
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