I. Summary
IAT/IMT series intelligence angle traveling electric actuator is designed on the basis of the reliable traditional mechanical transmission, using the super large scale integrated circuit, Created its advanced digital control technology, mechatronics design of the formation of a newgeneration of intelligent, refined small-scale, high-performance, multi-function, remote control operation, the Chinese showed that self-diagnosis fault alarm angle traveling electric actuator.
IAT/IMT series products have excellent performance, perfect functions, light and nice contour, debugs simply, operation conveniently, breakdown self-diagnosis, all Chinese display, menu style operation. To combine with all kinds of ball valve, butterfly valve, throttle valves, etc. become the unit of electric actuator. It is widely used for such automatic control systems as power plants, oil, steel work, chemical factory, food, medicine, oil pipeline and waste treatment, specially desulfurization devices and so on automatic control system. Able to meet the requirements of intermittent control.
The products have been built in accordance with the standard: Q/ZTK01-2006 <<Intelligent Actuator>>
IAT/IMT series products main features:
1. Using the super large scale digital integrated chips and the system function integration chips, so
formidable function, fast response, high precision.
2. Designing with mechanotronics, nice contour, light weight.
3. The rich information content display and user-friendly interface for man-machine dialogue.
4. By using the non-intrusive infra-red setting tool set up the functions and parameters, adjusting and
operating the actuator in local.
5. All Chinese, numbers and character display, menu-style operation.
6. Powerful self-diagnostic function.
7. May modify the parameter settings and may configuration multiple signal output.
8. With the power phase lose protection and phase sequence auto-correct feature.
9. Non-invasive isolation seal, no run through shaft design.
10. Electrical control wiring using pluggable architecture design, convenient, saving time, saving effort.
11. Fieldbus control technology is optional.
II. Types and Specifications
IAT series electric actuator is suitable in reversiable, intermittent operation work system, S2
working system, connected to sustained rate 25%, on-off frequency less than 630 starts per hour
IMT series electric actuator is suitable in the frequent adjustment situation, S4 working system,
connected to sustained rate 25%, on-off frequency up to 1200 starts per hour.
III. Main Technical Paraments
*Input Signal: (1) Analog signal 4-20mA·DC
(2) Switching Control of the contact
(3) Optional fieldbus control technology
*Output Signal: Valve position feedback signal 4-20mA·DC Load Resistance≤750Ω
*Error: ±1%
*Dead area: 0.1~9.9% adjustable The default setting is ≤0.5%
*Gap: ≤0.9°
*Half-way limit: Open limit range set 40%~100%
Closed limit range set 0%~60%
*Enclosure: IP68
*Explosion Proof: 1)Setting tool ExdIICT4 2)Electric actuator ExdIIBT4
*Contact Capacity: 250V AC,5A; 30V DC,5A
*Power Supply: Single phase, 110/220 V AC 50/60HZ
Three phase, 380/440V AC 50/60HZ
*Ambient: 1)Ambient temperature:-25ºC~+70ºC(Explosion proof -20ºC~+60ºC)
2)RH: 5%~98%
3)Atmosphere pressure: 86~106kpa
4)Air medium: non-caustic gases
*Interference Performance:
1) Magnetic field immunity: ≤400A/M, 50Hz
2)Commom mode interference: 250V, 50Hz
3)Differential mode interference: 1V, 50Hz, 0~360°
4)Electrostatic discharge: 4KV
5)Electrical fast transient burst: power supply terminal 1000V; input signal
terminal 500V
6)Radio-frequency electro magnetic field immunity:frequency 80~1000MHz
field intensity 3V/M distance 1m
7)Surge immunity: 1KV
IV. Principle
IAT/IMT series electric actuator is drived by single phase or three phase motor, decelerated by two stage worm gearbox, change the high-speed small torque power into low-speed large torque power. Drive output shaft, driving the valve device.
The actuator has the hand/auto mechanical devices. Depress the hand/auto lever into hand position,
the handwheel engage the second worm shaft through the clutch, torque will be delivered to the output shaft. Once the actuator switch to electric operation, whether it is the remote control or the local electric operation, hand/auto switch mechanical devices will automatically remain in electric operation the first priority. Motor drive first stage worm gear, through the clutch drive second stage worm gear, the torque transmission output shaft, while a torque detection device is equipped on the second stage of the worm gear worm shaft. The position switch is equipped on the output shaft.
IAT/IMT electric actuator receive the standard analog control signal, drive the vavle to complete
the positioning control. Actuator can also receive the switch signal. Event signals located in a pre-set position of control system
