Table of Contents
Summary of Contents for LAB-EL LB-762
- Page 1 LAB-EL ELEKTRONIKA LABORATORYJNA Herbaciana 9 05-816 Reguły 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...
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Page 2: Table Of Contents
1 System description 1.1 External connections of a single LB-762 regulator ........ - Page 3 ..........1.3 Scheme of a system with several LB-762 regulators and Ethernet network .
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Page 4: System Description
Regulator LB-762 is used to control a single mushroom cultivation hall. It provides all necessary measurements and control over appropriate executive devices to ensure optimum climatic conditions for fungi cultivation. LB-766 controller is used to control a single storage room. Regarding installation details, it is identical to LB-762 controller and this manual is applicable to both types. -
Page 5: Executive Equipment
LB-762 Controller Installation Manual LAB-EL conditions prevailing in the room. Another function of the second psychrometer may be measurement of air parameters in air intake channel for regulation of humidity and temperature of air flowing into the hall. • Cooler temperature – single thermometer advising the regulator of cooler work. -
Page 6: Data Transmission Network
1.4.1 Ethernet network Figure 1.3 presents a scheme of installation in which N LB-762 type regulators are combined by means of an Ethernet network. The number of regulators that can be connected in an Ethernet network is practically unrestricted. The length of a... -
Page 7: Rs-485 Network
Figure 1.4 presents a scheme of installation in which N LB-762 type regulators are combined by means of a RS-485 network. The number of regulators that can be connected in one RS-485 network segment is from 1 to 32 (see description of RS-485 network connections), maximum total length of cable is 1200 meters. -
Page 8: Cooperation With Lb-760 Regulators
1.5 Cooperation with LB-760 regulators LB-762 regulators can be used in systems where LB-760 regulators have been used so far. It is possible to build one common system in which both types of regulators operate to provide performance of respective system functions regardless of the... -
Page 9: Collective Co 2 Concentration Measurement
PC computer. 1.7 Collective CO concentration measurement In the measuring system consisting of more regulators (both LB-762 and LB-760), it is possible to ensure CO concentration measurement in two ways: • local measurement – each regulator has its own individual CO meter, •... - Page 10 LB-762 Controller Installation Manual LAB-EL of CO meters, each of which covers some selected group of halls. One should create several such groups, depending on size of the system. In such case each collective CO measurement group operates on its own and independently of the others.
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Page 11: Elements Of Regulator
LB-762 Controller Installation Manual LAB-EL Rozdział 2 Elements of regulator 2.1 Connections Warning For the purpose of preserving user safety, all operations on connections should be conducted with regulator power supply switched off! To obtain access to connections it is necessary to open the regulator casing. For this purpose: •... -
Page 12: Signaling Leds
LB-762 Controller Installation Manual LAB-EL Rysunek 2.1: Connectors of regulator LB-762 2.2 Signaling LEDs On main plate of the regulator (in 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... -
Page 13: Errors In Operation
LB-762 Controller Installation Manual LAB-EL during daily operation are located on the front panel of the regulator casing. The following LEDs are available: regulator readiness to work ETHERNET LNK Ethernet connection (LED out - no connection, LED on - connection active) -
Page 14: Connectors Description
• 1 extra universal temperature probe. 3.3.1 Psychrometers LB-762 regulator may cooperate directly with two psychrometers. When connected only to one psychrometer, it is used for measurement of temperature and humidity in the cultivation hall. The second psychrometer may be used also for measurement of temperature and humidity in the hall - in such case the regulator averages results from both measuring points, providing greater independence of measurement from the gradient of temperatures and humidity in the cultivation hall. -
Page 15: Thermometers
LB-762 Controller Installation Manual LAB-EL Rysunek 3.1: Scheme of psychrometer connection 3.3.2 Thermometers For connecting temperature probes the following connectors are used: • TEMP.SENSOR AC #1 - the thermometer of air-conditioning tunnel no. 1 (behind the heater), • TEMP.SENSOR AC #2 - the thermometer of air-conditioning tunnel no. 2 (behind the cooler), •... -
Page 16: Analog Input 0-10V
LAB-EL LB-850. The meter can be attached to any of the two S300 inputs which LB-762 regulator is equipped with. After connection of the meter to S300 input it is necessary to properly configure the regulator, so as to ensure that it could use measurement data from the S300 input. -
Page 17: Connection Of Hytherograph Type Lab-El Lb-710
LAB-EL LB-710. The meter can be attached to any of the two S300 inputs which LB-762 regulator is equipped with. After connection of the meter to S300 input it is necessary to properly configure the regulator, so as to ensure that it could use measurement data from the S300 input. -
Page 18: Outputs Of Analog Servomotors
3.7.1 Servomotor power supply LB-762 regulator does not supply power to servomotors – servomotors 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. -
Page 19: Scheme Of Connection Of Analog Servomotors Belimo
For servomotor which does 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. -
Page 20: Connection Diagrams - Actuator Open-Close
3.8 Bus of digital servomotors BELIMO MP-BUS LB-762 regulator is equipped with one connector used for connection of a bus of digital servomotors consistent with BELIMO MP-BUS standard. By means of this bus the regulator permits operation of 1 servomotor configured in PP mode or from 1 to 8 servomotors in MP mode. -
Page 21: Connecting Cable
In the case when each servomotor has its own power supply located in the neighborhood of the servomotor, connection of MP-BUS bus with LB-762 regulator can be made by two cables. In such case cable length is restricted to 800 meters, regardless of its section (it is not however recommended to use cable with section smaller than 0.75 mm... -
Page 22: Setting Of Servomotor Addresses
For proper cooperation of LB-762 regulator with digital servomotors BELIMO MP-BUS one should correctly configure both the servomotors and the regulator itself, according to the used operation mode of the servomotors (PP or MP with addresses). -
Page 23: Analog Outputs 0-10V
• after setting the servomotor address, use button NEXT to go to address setup for the next servomotor, or use BACK button to end the address setup procedure. 3.9 Analog outputs 0-10V LB-762 regulator is equipped with two analog outputs 0-10V, marked as follows: • OUTPUT 0-10V #1 - output no 1, • OUTPUT 0-10V #2 - output no 2. -
Page 24: Configuration Example
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 connection of RS-485 network 3 contacts are provided: •... -
Page 25: Termination Of Rs-485 Network
On Figure 3.13 termination should be enabled in devices described as LB-762 #1 (extreme device on the left side) and LB-480(extreme device on the right side). In other devices, located in the middle part of the network, termination of the network must be off.