Installation manual
Contents
1. 4VE with assembly fixture RS485 A X2 6 Interface B X2 5 Unit with RS485 Interface twisted pairs Shield If shielded cable is used connect the shield only at one end to avoid ground loop currents Transmission distance modem interface Cable Speed bps characteristics 600 1200 2400 4800 9600 19200 38400 64000 100000 _ 2 43 pkim 21000m 15000m 10000m 6700m 4000m 2500m 1300m Transmission Distance RS422 RS485 Interface Maximum distance 1200m at 0 115200 bps Use unshielded twisted pair cable The transmission distance is increased with lower capacitance and increased area Please use screened cable in heavy interference environment but consider that the higher capacitances reduce the transmission distance Technical Specification Transmission Asynchronous code independent Isolation Voltage M 1 Interface 420 Vrms Interface 2 Full half duplex or simplex to power port X1 and X3 420 Vrms Interface X1 EIA RS232 C and CCITT V 24 V 28 or Transient protection Suppressor diodes and varistors 10mA tristate balanced current loop Power 24 VDC 10 M 1 compatibel Other supplies on request Interface X2 EIA RS232 C and CCITT V 24 V 28 Power consumption max 200 mA EIA RS485 V 11 2 wire or Temperature Range 5 50 C or EIA RS422 4 wire Humidity 0 95 RH non condensing Isolated from interface 1 2 and power Dimension mm 47 129 134 Interface X3 EIA RS232 C and CCITT V2. 24 V 28 or without assembly fixture 10mA tristate balanced current loop assembly fixture 75 100 25 M 1 compatibel Case material ABS plastics black Connector DIN 41612 connector male or with backplane aluminium screw terminals on the Weight 0 25 k assembly fixture assembly fixture 0 1kg Speed 0 115 200 bps Mounting With an assembly fixture on the Indicators Power TD RD and DCD 35mm cap rail EN 50022 Isolation Datatransmission with optocoupler Confirm to CE only at M 1 interfaces Interface X2 Galvanic isolated from interface X1 X2 and power LH 4VE Page 5 6 Block diagram Interface 2 Galvanic insulated by opto couplers Interface monitor and redundance extension option not shown Configuration Termination of RS422 RS485 Interface Mode of operation from interface X1 X2 and X3 Data flow direction RS485 RS422 transmitter controlled by data or always active Mounting The case can be mounted with the assembly fixture on the 35mm cap rail EN50022 The assembly fixture consists of a clamp for the cap rail a DIN 41612 connectior and four screw terminal blocks After mounting the assembly fixture on the rail and connecting the wires to the screw terminals the case can be put on the DIN 41612 connector Before mounting the tab washer should have a right angled position to the case Then the unit is shifted easily downward bent onto the DIN connector whereby the fixing square strap rear side of housing seize
3. Installation Manual LH 4VE Line Split Unit with bypass Modem V 24 RS422 RS485 V 24 Modem V 24 V 24 M 1 Modem Technical Specification Configuration Connection Blockdiagram Mounting Installation Examples January 2000 Hedin la Tex Description The line split unit divides a V 24 M 1 modem interface into a V 24 M 1 modem and a isolated RS422 RS485 V 24 interface Jumper X8 and X9 set the data flow direction Position 1 2 is for a master slave communication Port X1 lt gt Port X2 Port X3 not Port X2 lt gt Port X3 Setting 2 3 supports a token passing protocol Every Port sends the received data to the other ports So the LH 4VE makes a data regenration inside a M 1 Modem connection and splits the information to a third interface The RS422 RS485 transmitter is controlled by data or set constantly on by jumper X6 X12 extends the RS422 RS485 transmitter driver on signal if controlled by data for better transmission characteristics The RS422 RS485 bus should be terminated at the end of the line In LH 4VE this can be done by jumper X14 and X15 If the LH 4VE has a failure power off the interface X2 gets no data and the modem interfaces X1 and X3 are connected together The modem status of port X1 and X3 are connected by an AND function to a relay output to provide checking the modem interfaces within a line TD is on flashed gt The line split unit receives data at port X2 RD is on flashed gt The line spli
4. onnected directly together Be aware of failures by planning the distance because there is no repeater function Interface monitor The status of the M 1 interfaces X1 and X3 are joined by an AND function and are leaded to a relay contact Pin 25 26 If both interfaces detect the remote side the contact is closed Connection Fixing square Tab washer i V 24 or M 1 Modem V 24 or M 1 Modem Master Slave V 24 or RS485 RS422 galvanic insulated Connection power supply LH 4VE with Power 24V raat assembly fixture Power OV Noha Power PE Protected Earth Connection V 24 interface V 24 RS232 LH 4VE with assembly fixture Interface TD X1 17 RD X1 18 1 Vet DOD Xi20 Interface SG X1 19 Galvanic isolated interface X2 is TD X2 9 RD X2 10 DCD X2 11 SG X2 12 LH 4VE Page 4 6 Connection M 1 modem interface LH 4VE with assembly fixture M 1 R 1 LT 1V pp twisted pairs T X1 19 1 M 1 T X1 20 Interface R X1 17 R X1 18 PE X2 15 If shielded cable is used connect the shield only at one end to avoid ground loop currents Line connection RS422 interface l s System with LH 4VE with assembly fixture twisted pairs RS 422 interface Receiver X2 8 A T Transmitter X2 7 Transmitter X2 6 A R Receiver X2 5 B R Shield X2 15 Shield If shielded cable is used connect the shield only at one end to avoid ground loop currents Connection RS485 Interface LH
5. s behind the printed circuit board of the assembly fixture When the tab washer is bolt to the assembly fixture the case has to be mounted on the rail Installation example Amaster has a connection to many V 24 or RS422 RS485 slaves V 24 V 24 RS485 RS485 RS422 X2 M 1 Modem V 24 X3 V 24 M 1 Modem Ifa LH 4VE had a failure the X 2 interface gets no data and the modem interfaces X1 and X3 are connected directly together Be aware of of failures by planing the distance because there is no repeater function LH 4VE Page 6 6
6. t unit receives data at port X1 DCD is on gt The line split unit has connection to the remote side If port X1 is a V 24 interface DCD is off Configuration The line splitter LH 4VE can be adapted by a number of different onfigurations to a variety of running conditions After removing the top of the case the jumpers switches are accessible The top of the case can be removed by untying the screws On the circuit board the switches have the following location and function Position on the board ye oa I U xe A Data mD TT Always active 1 2 3 2wire 4 wire transmission pf one ee _ lt P 4wire HD VD fa 2 Data flow direction X8 Port X1 can communicate with lt gt port X2 und port X3 There is no communication possible xg lt gt between port X2 and port X3 t ex Master Slave protocol termination xs lt P gt Every port can communicate with every other t ex Token Transceiver xo lt T gt Passing MultiMaster protocol terminated 2 wire 7 No termination Delay Time for Transmitter Control Signal Receiver No delay 3us 20 terminated 4 wire 0 75 ms 20 1 5 ms 20 Position OR 1 MS MM 2W 4W Port X1 and Port X3 OR 1 Extension card for a redundant ring system configurated as M 1 Modem Interface Factory setting lt gt Jumper Port X1 and Port X3 Note configurated as Althrough the RS232 V 24 Interface is used the V 24 Interface RS422 RS485 in
7. terface must be terminated by jumper X14 and X15 depending on X7 LH 4VE Page 2 6 Connection Assembly fixture Screw for the tab washer DIN41612 Connector Mounting feet 35mm DIN Rail EN 50022 Screw terminals 22c 20c 22a 20a M 1 Receiver 3 R 32c Protective Earth 32a Signal ground SG1 2a M 1 Receiver 1 R 4a M 1 Receiver 1 R 2c M 1 Transmitter 1 T M 1 Transmitte 24c Protective Earth Protective Earth Signal Ground Power Ground 28c 24V Input 24 VDC LH 4VE Page 3 6 Description Transient Protection In LH 4VE the signal ground SG and the PE are connected together with a 0 Ohm resistor X5 To be sure of the transient protection in any case the line splitter should be grounded RS422 RS485 Termination This interface should allways be terminated also if it not used In a 2 wire system both units at the ends of the wires should be terminated In RS422 mode the receiver with longest distance to the transmitter should be terminated RS485 data control If the RS485 transmitter is controlled by data jumper X12 sets the Driver ON time for the transmitter The transmitter is ON depending on X12 delay time after the last sending bit In this case a termination is neccessary with pullup and pulldown resistors The termination X14 and X15 is realized with pullup and pulldown resistors ss If a LH 4VE has a failure the X 2 interface gets no data and the modem interfaces X1 and X3 are c
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