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LAB-EL

ELEKTRONIKA LABORATORYJNA

Herbaciana 9

05-816 Reguły

PL

tel: +48 22 7536130

fax: +48 22 7536135

www:

email:

[email protected]

LB-762 Controller Installation Manual

Release 7

24 października 2019

Copyright © 2008-2019 LAB-EL

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Summary of Contents for LB-762

Page 1: ...IKA LABORATORYJNA Herbaciana 9 05 816 Reguły PL tel 48 22 7536130 fax 48 22 7536135 www www label pl email info label pl LB 762 Controller Installation Manual Release 7 24 października 2019 Copyright 2008 2019 LAB EL ...

Page 2: ...Thermometers 15 3 4 Analog input 0 10V 16 3 4 1 Connection of analog CO2 concentration meter 16 3 5 Inputs of S300 measurement sensors 16 3 5 1 Connection of CO2 concentration meter type LAB EL LB 850 16 3 5 2 Connection of hytherograph type LAB EL LB 710 17 3 6 Relay outputs 17 3 6 1 Connection of OPEN CLOSE 230V valve 17 3 7 Outputs of analog servomotors 18 3 7 1 Servomotor power supply 18 3 7 2...

Page 3: ...ter 16 3 5 Scheme of connection of LAB EL LB 710 type meter 17 3 6 Scheme of connection system of a typical valve to relay output 17 3 7 Scheme of connection of analog servomotors Belimo 19 3 8 Scheme of connection of analog servomotors Johnson Control 19 3 9 Scheme of connection of analog servomotor without return signal 19 3 10 Scheme of connection of open close actuators 20 3 11 Scheme of conne...

Page 4: ...s common for the entire system such as measurement of external air parameters or CO2 concentration measurement Regulator LB 764 is LB 762 model with special modifications prepared for Baltic Champignons installation instructions also applies to this regulator 1 1 External connections of a single LB 762 regulator Figure 1 1 presents a scheme of typical external connections of a single LB 762 regula...

Page 5: ...or more than one hall what permits reduction in the cost of the installation Detailed description further the manual External hytherograph to ensure better operation of mechanisms controlling climate in the cultivation hall the regulator may use information about external air parameters flowing into the air conditioning tunnel This allows for using directly the properties of this air enthalpy and ...

Page 6: ...routers the network can be expanded over any area The number of devices in an Ethernet network is relatively unrestricted the only practical limits result from the type of network devices used switches and the adopted IP network addressing class RS 485 this network provides relatively slow data transmission as compared to the Ethernet network 19 2 kbit s however its advantage is simplicity of cabl...

Page 7: ...aximum total length of cable is 1200 meters RS 485 network requires the application of LB 480 module that works as converter of communication interfaces Connection between a PC computer and LB 480 module is by means of Ethernet network LB 480 module communicates with the regulators by means of RS 485 network Additionally to LB 480 unit common system equipment may be attached such as an external hy...

Page 8: ...ork Rysunek 1 5 Scheme of a system with LB 762 and LB 760 regulators 1 6 Collective measurement of external air parameters In the measuring system consisting of more regulators both LB 762 and LB 760 it is possible to use a single hytherograph to measure external air parameters It is also possible to connect individual hytherographs to different regulators but with regard to the fact that they nor...

Page 9: ... The whole continues in cycles Additionally it is possible to incorporate to the system CO2 concentration measurement for external air This has two functions periodic blowing Of the CO2 meter with fresh air with low CO2 concentration and verification of correct measurement by means of fresh air As CO2 concentration in cultivation halls is usually much higher than outdoors the meter working all the...

Page 10: ...ment in external air for reasons previously discussed Separate groups of collective CO2 measurement operate independently but within one network of data transmission it is not required here to split the entire system into separate data transmission networks in accordance with breakdown of CO2 measurement The data transmission network is common CO2 measurement groups are independent of this Importa...

Page 11: ...rpose unscrew four plastic screws on the front panel open the Casing lifting up the front panel on hinges Connections are placed in the rear part of the casing mostly along side edges The exception are Ethernet link placed on the top and power supply and earthing link placed on the bottom All connections use plugs to which wires are fixed by means of screw clamps or spring clamps The distribution ...

Page 12: ...n the rear part of the casing there are several light diodes which are supposed to signal regulator status The function of these diodes is above all to provide a diagnostic tool they are important mostly at the time of installation and start up later while normal operation access to them is not required All signaling elements important 12 ...

Page 13: ...no 2 each LED flash is associated with data receipt 2 2 1 Errors in operation Errors in operation of the regulator are signalled both on the display on the the front panel as well as by means of signaling diodes on the main plate of the regulator possible is e g regulator failure condition which does not permit display of the relevant announcement on the displays in such case the only possible sig...

Page 14: ...munity to interference it is necessary to ensure appropriate connection of the earth clamp IT IS NOT allowed to connect the earth clamp to contact N of the power supply connector Separate earthing is required 3 3 Measurement probes LB 762 regulator is equipped with a number of inputs ensuring attachment of the following probes 2 psychrometers 4 temperature probes of air conditioning tunnel 6 base ...

Page 15: ...he thermometer of air conditioning tunnel no 3 additional TEMP SENSOR AC 4 the thermometer of air conditioning tunnel no 4 additional TEMP SENSOR COMP 1 base thermometer no 1 TEMP SENSOR COMP 2 base thermometer no 2 TEMP SENSOR COMP 3 base thermometer no 3 TEMP SENSOR COMP 4 base thermometer no 4 TEMP SENSOR COMP 5 base thermometer no 5 TEMP SENSOR COMP 6 base thermometer no 6 TEMP SENSOR AUX 1 ad...

Page 16: ...pped with two inputs permitting attachment of any S300 sensors extending measurement possibilities of the regulator In typical cases these are concentration meters CO2 LB 850 or hytherographs LB 710 For connecting sensors the following connectors are used S300 1 sensor input no 1 S300 2 sensor input no 2 The connection is done using two wires that they provide power supply to the meter and are use...

Page 17: ...ition Normally Open normally no contact Switching on the relay causes short circuit of output contacts Relay no 8 is of contact no contact type pairs of contacts are marked as N O what means inactive condition Normally Open normally no contact and N C what means inactive condition Normally Closed normally contact One contact is common Switching on the relay causes short circuit of output contacts ...

Page 18: ...motors require a separate source of power supply The manner of power supply depends on the type of servomotors Popular BELIMO servomotors can be powered with voltage 24V AC or 24V DC Johnson Control servomotors require only 24V AC power supply For 24V AC power supply the so called safety transformer can be used 230V 24V one should however ensure proper anti shorting protection The power supply uni...

Page 19: ...s not have a return signal one should short circuit contacts IN and OUT in the given connector of regulator LB 762 in accordance with figure Figure 3 9 Such connection will ensure cheating of the regulator as to compliance of the set and the actual servomotor position and shall prevent alert signalling of servomotor failure Rysunek 3 9 Scheme of connection of analog servomotor without return signa...

Page 20: ...BUS bus suitable servomotors must be used consistent with this standard Before connection to the system they require configuration address setting Default factory servomotor setting permits operation in PP mode permitting communication only with one servomotor use of a greater number of servomotor requires assignment of an individual address to each one Servomotor address setup procedure is descri...

Page 21: ...sum up power collected for all connected servomotors For example for servomotor LM24A MP consumed power is 2 5 W for 24V DC and 5 0 VA for 24V AC With 8 servomotors we have the sum of powers 20 W for 24V DC and 40 VA for 24V AC what permits application of cable with length respectively 40 meters at supply 24V DC and 15 meters at supply 24V AC In special cases when larger distances are required dou...

Page 22: ...ols such as MFT H programmer or interfaces ZIP RS232 ZIP USB MP ZIP 232 MP ZIP 232 KA plus dedicated Belimo PC Tool MFT P configuration software description the method of conduct is in the respective documentation of Belimo configuration procedure built in LB 762 regulator this method is described below LB 762 regulator software permitting configuration of addresses of attached servomotors Individ...

Page 23: ...collision with other servomotors In such situations immediate disconnection can help of the other servomotors and conduct of the address setting procedure with a single servomotor connected Continuous flashing of announcement SET ACT and no reaction to confirm the address in servomotor means no communication with the servomotor check the correctness of all connections after setting the servomotor ...

Page 24: ...e for all nodes Regulator address settings can be applied using lbnetcfg tool PC with Windows operating system requires changes to network card settings under TCP IP protocol properties 3 11 RS 485 network The connector described as RS 485 is used to connect LB 762 regulator to RS 485 network serving for communication with an appropriate IT system PC computer and appropriate software For connectio...

Page 25: ... but in practice it is not present RS 485 interface in converter LB 480 has similar termination mechanisms of RS 485 network This can be done using 3 contacts which can be found on the interface plate available after removing the housing described as LINE TERMINATION In order to turn on termination of line in converter LB 480 one should set up all 3 contacts JP1 POL polarization JP2 POL polarizati...

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