执行器模块电动头模块-力米托克

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Zhejiang Limitoke Intelligent Technology Co., Ltd.

Hotline:0578-2927663

Fax:0578-2927663-808

Contacts:Mr Qu

Mobile:18815081858

Contacts:Mr Wu

Mobile:18668708186

Url:www.lmtork.com

Email:limitork@126.com

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LM angular stroke actuator

LM angular stroke actuator

LMQ/LMMQ series
Product overview

LMQ series angle stroke actuator has the international leading level. The use of advanced DSP system, professional 18-bit magnetic code counting system, all in English. All Chinese.

Combination of Chinese and English menu operation and display. System automatic diagnosis. Prompt and protect, intelligent, efficient and humanized design. It creates its perfect function, simple debugging, simple debugging,

Easy installation. Easy to set. Lifetime use and other excellent performance. Widely used in a variety of ball valves, butterfly valves, air doors and other valve matching.

1. the main characteristics of intelligent electric actuator:
Adopt the advanced DSP system, the function is powerful, the precision grade is high.
Intelligent integrated design, small size, light weight.
The professional current transformer is used to measure the torque value, the accuracy is high, the error rate is less than 5%, and it can dynamically monitor, display the overtorque, block the rotation and alarm and prompt.
The position sensor adopts non-contact Hall effect pulse counting and coding system or 18-bit magnetic coding counting system, which has high precision and durable use.
The function, parameter setting, debugging and field electric operation of the actuator are set by hand-held infrared remote controller without opening the box cover.
Action menu: all English. All Chinese. The combination of Chinese and English menu operation and display, intuitive and clear, easy to understand.
The system prompts the actuator to work in a variety of status and information. And guide the operation.
2. the function of intelligent electric actuator: 
Travel limit protection function 
Torque limit protection function
Status indication contact function

1) the valve is fully closed, 2) the valve is fully open, 3) the closing moment is broken, 4) the opening moment is broken, 5) the valve is broken anywhere, 6) it is being electrically operated.

7) Actuator alarm 8) Valve alarm 9) Emergency signal 10) Local Control 11) remote Control 12) Local stop 13) Battery shortage                        

Alarm status indication
1) closing valve 7 seconds alarm 2) opening valve 7 seconds alarm 3) electric pool less than 4) closing valve torque jumping 5) opening valve torque jumping 6) actuator alarm

System prompt

1) Motor phase line reverse 2) Please reset valve position

Control system alarm indication

1) ESD control: position preservation. Open the valve. Close valve 2) remote disconnect protection. Open the valve. Closing valve
Instantaneous reverse protection function local control point moving / self-retaining selection function
Automatic identification function of phase sequence of three-phase power supply optional function of closing valve direction
State indication contact function two-wire control and protection function
External interlocking protection function torque bypass protection function
ESD beyond protection function remote control setting function
Guide operation function mechanical overshoot function
Data recovery function window positive and negative display function (all Chinese)
Parameter view function working time prompt function
Provide user information functionality (customizable)
working principle

LMQ series intelligent angular stroke electric actuator is driven by single-phase or three-phase servo motor, which slows down through two-stage worm gear and worm to reduce the power of high speed and small torque.

Convert to low speed, high torque power, drive the output shaft, drive the valve device. 

A manual / automatic switching mechanism is provided on the worm shaft of the second stage of the deceleration mechanism. When the switch handle is in a manual position, the handwheel engages the second stage worm through the clutch,

Transfer torque to the output shaft. Once the actuator switches to electric operation, whether remote control or on-site local electric operation, the manual / automatic switching mechanism will automatically fall back,

In the electric priority position, the first worm gear worm is driven by the servo motor, and then the second worm gear worm is driven by the clutch, and the torque transmission output shaft is simultaneously in the second worm gear.

The worm of the worm deceleration mechanism is equipped with a torque detection device; a stroke position sensor is arranged on the output shaft.

LMQ series intelligent electric actuator accepts standard 4-20mA analog control signal, drives valve, completes positioning control, and can also accept contact signal. event signal is located atControl system preset position

Technical parameters

Input signal: (1) Analog signal 1). 4-20mA.DC input impedance 250 Ω

                                              2)。 0-10mA.DC input impedance 500 Ω
(2) switch contact control.
(III) alternative fieldbus control technology
 Output signal: valve position feedback signal: 4-20mA.DC load impedance ≤ 750 Ω
 Basic error: (1) Standard angular stroke electric device,                      
(2) adjustable angular stroke electric actuator ≤ ±1%

Dead zone 0.1 ≤ 9.9% adjustable default setting ≤ 0.5%

Clearance: (1) adjustable angular stroke electric actuator ≤ 1 °

                        (2) Standard angular stroke valve electric device ≤ 1 °
  Power supply: three-phase three-wire system, 380V.AC ±10%, 50Hz ±1%
 Shell Protection level: IP68
Explosion-proof level: (1) remote control intrinsically safe ibII BT4
                          (II) the executing agency is flameproof d II BT4
Output contact capacity: 250V.AC 5A; 30V.DC, 5A
 Environmental conditions: (1) Environmental temperature:-25 ≤ 70 ℃ (flameproof:-20 ≤ 60 ℃)
                            (II) relative humidity: 5% ≤ 98%;
                            (III) Atmospheric pressure: 86 ≤ 106 KPA;
                          (IV) Air medium: non-corrosive gases in the surrounding air
Anti-interference index: 1) external magnetic field: ≤ 400A/m 50HZ
                          2) Common-mode interference 250 v, 50HZ
                         3) Serial mode interference: ac signal with effective value of 1v
                               The frequency is 50 Hz and the phase is 0 ≤ 360 °.
                         4) Electrostatic discharge: 4kV
                         5) Electric fast instantaneous pulse group: power supply 1000V; signal input; 500V
                         6) RF interference: frequency 80 ≤ 1000MHz, test site strength 3V ≤ m, distance 1m
                         7) surge interference: 1kV
8) absolute resistance: 100mn/500v

Product specification

Performance Parameter Table of LMQ/LMMQ Series (380V Motor) angular stroke Actuator


LMQ/LMMQ series mechanical connection dimension table

(1) Type RA (national standard) flange size table


(2) RB type (national standard) flange size table



(三)RC (traditional) flange size table (LMQ3+ LMQ4+)


(四)Outlet flange dimension table



Description of Product Model for Angle stroke Intelligent Electric Actuator

Copyright:Zhejiang Limitoke Intelligent Technology Co., Ltd. Tel:0578-2927663 Fax:0578-2927663-808 Address:Lishui Industryzone, Liandu District, Lishui City, Zhejiang Province

Hotline:0578-2927663 Url:http://www.lmtork.com