Driver/actuator (VA-3000 Series)

■ Features of Products ● Low AC voltage synchronous reversible motor, magnetic clutch. ● Action uses gear transmission. The supporting for output gear screw groups uses plane rolling bearing which rotate move around the center pin. The valve shaft uses center spindle sleeve connection and position scale. ● Valve-moving position indicator. ● It can be attached two auxiliary switch and manual control lever. ● It is suitable for the stroke of 15mm, 17mm or 19mm. For the increasing feedback type or proportional control type, the stroke should been selected by a wire jumper. ● For the direct proportion 0-10V DC control, its better to use wire jumper selecting forward type or reversion type operation. 　　Operation 　　The driver is driven by a bilateral synchronous motor, with a magnetic clutch. Magnetic activity, caused by clutch and motor that is via motor rotor, can produce stable twisting force at the condition of pause. So the motor can stop at any point stably without current passing through. 　　The signal sent off from increasing or proportional controller of driver can make the motor rotate clockwise or counter-clockwise. VA-2102 driver attaches a wire jumper that can provide 15mm/17mm and 19mm stroke. We choose 17mm stroke when it ex-work. But if it has been mounted on the valve body when supplying, it should be cooperate according to the valve stroke. VA-2102 driver have a wire jumper at 0-10V or 4-20mA DC control signal mode in store, to select the suitable control mode. In addition, another wire jumper is used for confirm positive direction (RA) or negative direction (DA) operation.