ELECTRIC ACTUATORS - YOO SHIN E&I CO., LTD.

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20 USER’S GUIDE CHOOSING THE CONTROL Signalling options CONTACTS Standard selector limit switches ● DC rated : Voltage Resistive load Inductive load 24 V 16 V 5 A 48 V 2,5 A 1,2 A 127 V 0,8 A 0,35 A 230 V 0,6 A 2,2 A ● AC rated : Voltage Resistive load Inductive load Up to 250 V 16 V 2 A ● Optional : – DPDT (selector switch without common point) – Nitrogen filling – Inductive – Watertight – Explosion proof POTENTIOMETER Valve position image, the remote position signal must not be underestimated. ● Model 200 for ON / OFF or Class III actuators Power 1 Watt - Plastic track - 1 Kohm value - Others on request - Single or double type. ● Model 210 for actuators of Class II or Class I Power 2 Watts - Plastic track, nearly infinite resolution - 1 Kohm value - Single or double type. TAM : ELECTRONIC POSITION TRANSMITTER The TAM transmitter remotely sends the position of the driven device, via a 4-20 mA or 0-20 mA current signal, irrespective of the line length and with protection against interference. The TAM includes a 1 Kohm potentiometer associated with an electronic module. ● Technical data : – Supply voltage : 12 to 32 V DC (rectified, filtered or stabilised) – Max. admissible load : 750 Ohm at 24 V – 2 wire connection : 4-20 mA signal – 3 or 4 wire connection : 4-20 mA or 0-20 mA signal – Linearity : 0,5 % – Permitted temperature acceptance : -40°C to +70°C TIN : CONTACTLESS POSITION TRANSMITTER As the TAM, the output signal of the TIN transmitter is equal to 4-20 mA or 0-20 mA. The inductive type sensor has the advantage of being unaffected by contact wear. ● Technical data : – Supply voltage : 18 to 33 V DC (rectified, filtered or stabilised) – Max. admissible load : 600 Ohm – 2 wire connection : 4-20 mA signal – 3 or 4 wire connection : 4-20 mA or 0-20 mA signal – Linearity : 0,5 % – Permitted temperature : -10°C to +70°C
The fieldbus is the mean commonly used for exchanging information and commands with several actuators or sensors over a single electrical line. Each actuator requires an individual power supply and a communication line which, in the case of the fieldbus, is common to a set of actuators. The signal is encoded and an address is assigned to each actuator. Therefore, each actuator can identify those commands which are intended for it and the data transmitted by the actuator can be identified. The advantage of the fieldbus connection is, on the one hand, that several actuators can be connected over the same line and on the other, that the amount of data transmitted by each actuator can be increased without impacting wiring costs. A fieldbus which establishes connection for several actuators over a single line is distinct from an encoded 4-20 mA system which is capable of carrying data superimposed over a 4-20 mA signal for a single actuator or sensor. A WIDE RANGE OF FIELDBUS SYSTEMS As a wide range of fieldbus systems exist, an actuator can only connect to a bus line if it is equipped with the fieldbus specific interface. There are “proprietary” systems, where a single manufactuer supplies the necessary interfaces, and “open” systems where various manufacturers can supply interfaces. With regard to “proprietary” systems, L. BERNARD offers the DUPLINE system, branded DS200. Although proprietary, this system is not L. BER- NARD-specific, as the manufacturer is Carlo Gavazzi. The user can therefore procure additional 21 USER’S GUIDE COMMUNICATION BY FIELDBUS interfaces directly from Carlo Gavazzi, and is therefore not dependant on the actuator supplier. A “proprietary” system always includes the actuators and their bus interface, as well as the bus controller located at the line head-end, used for the dialogue with the PLC which controls the process. Communication with the PLC also uses a bus sytem. In general MODBUS is used. In the electric actuator domain, “open” systems mainly include : ● PROFIBUS ● MODBUS ● FIELDBUS FOUNDATION With an “open” system, the actuator or sensor supplier usually limits its offer to the equipment equipped with the bus interface. The bus controller is generally integrated to an extension of the PLC.
Page 1 and 2: ELECTRIC ACTUATORS A104/02
Page 3 and 4: The electric actuator, initially de
Page 5 and 6: 5 USER’S GUIDE 3. TYPE OF OPERATI
Page 7 and 8: The European directive 94/9/CE, app
Page 9 and 10: The fail-safe devices are used to p
Page 11 and 12: ENVIRONMENT WITH FAIL SAFE POSITION
Page 13 and 14: Electric motors The choice of an op
Page 15 and 16: The use of a patented cam holder sy
Page 17 and 18: REMOTE CONTROL LOCAL CONTROL INTERN
Page 19: ● Proportional control : POSIGAM+
Page 23 and 24: This configuration offers the advan

ELECTRIC ACTUATORS - YOO SHIN E&I CO., LTD.

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