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

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4 USER’S GUIDE CHOOSING THE RANGE Analysis Four questions to be asked for determining the most suited range : 1. TYPE OF MOVEMENT OF THE DEVICE TO BE DRIVEN Type of device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Movement Butterfly valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quarter-turn Ball and Plug valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quarter-turn Dampers and louvers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quarter-turn Globe valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multiturn Pinch and diaphragm valves . . . . . . . . . . . . . . . . . . . . . . . . Multiturn Gate or knife valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Linear 2. TYPE OF ENVIRONMENT Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actuator enclosure protection Normal environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Watertight Hazardous areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Explosion proof Nuclear sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nuclear Corrosive atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special
5 USER’S GUIDE 3. TYPE OF OPERATION OF THE DEVICE TO BE DRIVEN CHOOSING THE RANGE Analysis Type of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Actuator function Open or close the full stroke, . . . . . . . . . . . . . . . . . . . . . . . . On-Off on average 20 to 30 times/day. Select intermediate positions, Modulating with good precision (better than 2 %) . . . . . . . . . . . . . . . . . Class III on average 360 times/day. Select intermediate positions, Modulating with high precision (better than 1 %) . . . . . . . . . . . . . . . . . . Class II on a permanent basis every 2 or 3 seconds. Fast positioning Modulating with an excellent precision (0,5 % or better) . . . . . . . . . . . . Class I and continuous movement. 4. SAFETY POSITION Safety requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type of actuator In case of power supply failure, the valve can remain in the last position . . . . . . . . . . . . . . . Stay put without any danger. In case of control signal failure, Actuator with automatic the valve should move automatically . . . . . . . . . . . . . . . . . . emergency action to the safe position. In case of a complete power failure, the valve should move automatically . . . . . . . . . . . . . . . . . . Fail safe to the safety position.
Page 1 and 2: ELECTRIC ACTUATORS A104/02
Page 3: The electric actuator, initially de
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 and 20: ● Proportional control : POSIGAM+
Page 21 and 22: The fieldbus is the mean commonly u
Page 23 and 24: This configuration offers the advan

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

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