NON-INTRUSIVE INTELLECTUALIZED ELECTRIC ACTUATORS(VALVE ELECTRIC ACTUATOR)

Non-intrusive design is audio-visual and easy to adjust Measurement of position and torque is accurate and reliable.

 ELECTRIC ACTUATOR

1. MAIN TECHNICAL PARAMETERS

1) Power supply: 380 V±10%, 50 Hz±1%

    Optional: 380~660 V,50 or 60 Hz, specified when ordering

2) Service environment

(1) Environmental temperature: -20~60°C; Optional: -40~ +70°C

(2) Relative humidity: ≤90% (+25°C)

(3) Enclosure protection:  IP68 (4 meter below water surface for 68 hours)

(4) Flameproof specification: Exd Ι, ExdibIIBT4 and ExdibIICT4. The ExdibIICT4 is for special order.

(5) Flameproof mark: Exd Ι, ExdibIIBT4 and ExdibIICT4, for hazardous zone with Class IIB ~IIC explosive gases of temperature groups T1~T4.

3) The motor is of short time duty. Rated operating time is 15 min.

     Insulation: Class F

2. GENERAL DESCRIPTION OF ACTUATOR

CHANGZHOU-CDF (abr. as SND) non-intrusive intellectualized electric actuators are designed with introduced technology from overseas and developed by cooperation. These mechanic-electronic products have been integrated advanced multi-control technologies such as absolute coding technology, sensor technology, bus-mastering technology, infrared remote control technology, LED, magnetic control switch and advanced manufacturing technology.

SND Range products are units to control the operation of final control element (e.g. valves) in open control system. Among the rest, SND actuators of Range Z are used for the control of globe valve, gate valve, throttle valve, water gate and etc. And SND actuators of Range Q and DQ are used for the control of ball valve, butterfly valve, and damper etc.

3. FEATURES OF ACTUATORS

Non-intrusive design is audio-visual and easy to adjust.

Measurement of position and torque is accurate and reliable.

Provided with speed-changeable and slow closing functions

Comprehensive data recording

Self-diagnostic and self-adapting functions

Automatic phase-rotation-corrective function

Trouble-diagnostic function in operation

Functions of network transmission

Overheat-protection for electric motor

Transient reverse protection

Capable to carry out valve closing at high speed

Capable to compensate valve seating at high temperature

Enclosure protection of IP68 (4 meter below water surface for 68 hours)

Provided with two series products of normal model and flame-proof model

Small in size, light in weight and extensive in speed range

4.SCHEMATIC CIRCUIT DIAGRAM AND WIRING DIAGRAM

 4.1SCHEMATIC CIRCUIT DIAGRAM AND WIRING DIAGRAM OF ELECTRIC ACTUATOR

  

Note: 1. What in dash line frame of this figure is for special order.

           2.If there is no 380V ac input, user can provide backing power (24V dc) for LCD through terminal 1 and 2. Available of backing power or not, does not affect data access. Primary power and backing power are exchangeable automatically.

4.2 CONTROL MODE

The actuator has three control modes: local control, remote control, and emergent self-hold.

14.2.1 LOCAL CONTROL  

When the red knob is located at Local position, the actuator can carry out functions of valve opening, valve closing and stop via black knob.

4.2.2 REMOTE CONTROL

When the red knob is located at Remote position, the actuator can carry out functions of valve opening, valve closing and stop via terminals.

Power supply of Remote Control is DC 24 V (built in), power supply voltage of control signal is: Von>20 V, Voff<1.5 V

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