Contact us

Variable Speed Electric Actuator 

Series: SECURE

Models: LMA-S1 & S2

Permanent magnet DC brushless speed control electric actuator is suitable for high-precision, high-speed, frequent start-up, and harsh working conditions.

Quarter Turn : 100Nm-300,000Nm

Linear Travel : 1KN-120KN.

Product Details

Secure Series
Key Features
Purchase Guide
Downloads
Standard Configuration Technical Parameters
Basic ParametersBLDC Motor
Product SeriesSecure Series
High Speed / Precision / Full Function
Ball / Butterfly / Control Valve
Power Supply12 / 24 / 36 / 48 / 72 VDC ±2%
110 / 230 / 400 / 600 VAC ±25%
Solar + DC Electric Actuator
Torque / ThrustPart-turn: 100-300000 Nm
Linear: 1-120 kN
Speed Range15%-100% (Rated Motor Speed)
Torque Range2-3 Times Standard Torque (Not all models can reach 3× torque)
Torque DetectionDetecting the current changes during the motor operation.
Torque Detection Accuracy±3%
LCD / OLCD4 Lines Display, English and Chinese Switching.
Position SensorAbsolute Encoder
Input / OutputAnalog Quantity: 4-20 mA / 4-20 mA;
Switching Quantity: Dry Contact;
Wireless Remote Control (1-10 km)
Control Accuracy±0.1%, For high precision control, have to use DAUME provided valve.
Receive Command Response Time50 ms
Motor CommutationElectronic Commutation
Motor Commutation Time IntervalImmediately (No need to stop)
Motor OvershootNo Overshoot or Slight Overshoot
Motor Load RateLoad Ratio: 300%, Working State: S5
Start Frequency is Not Limited
Ambient Temperature-40°C to +85°C (Conventional)
-60°C to +60°C (Mention in the Order)
Environment Humidity100% RH
Protection LevelIP69
Underwater 12 m Normally Working
Explosion-proof GradeEx dⅡ C T5
Communication ProtocolModBUS-RTU (Std)
ProfiBUS-DP
HART
Alarm Output6-Way Relay Alarm Output
Seismic PerformanceManufacturer Test Standard: At 600 Hz, 3-Axis Direction, 10 g State, It Continuously Worked Successfully for 180 Days.
Split InstallationSplit Control Box: The Local Display, Operating Panel, Controller, etc., are placed at a location ≤40 m away.
Actuator Body: The Motor, Position Sensor, etc., are fixed in the host body cavity in a special way.
Split Installation Distance ≤40 m
Solar PowerSolar Power Supply in the Field Without Power Supply

Key Features

  1. Non-intrusive Design: No need to open the cover; parameters can be set through panel buttons or remote control for convenient operation.
  2. Rich Display Functions: Clearly displays valve position, sensor location, etc., making it intuitive and easy to understand, replacing traditional symbol codes.
  3. Efficient Mechanical Transmission: Uses NGWN-II transmission principle with high efficiency, strong load-bearing capacity, and long life.
  4. Adjustable Motor Speed: Achieves DC speed regulation to protect valves from liquid erosion.
  5. Adjustable Torque: Torque can be reset via the panel or remote control, with a range of F1SF2.
  6. Avoidance of Water Hammer and Cavitation: The entire stroke can be divided into three segments for setting, following the valve’s flow characteristic curve.
  7. Electronic Stroke Limiting: Simple and reliable operation, easily completing stroke settings through jogging or manual operation.
  8. Strong Interference Self-recovery: In case of signal interference causing a system crash, the system automatically recovers to the state before the crash.
  9. No Clutch Handwheel Mechanism: The handwheel can be turned at any time, and the actuator automatically returns to the position indicated by the last received signal.
  10. Local/Remote Switching: One-button switching between local and remote operations.
  11. Timely Protection Functions: Equipped with various protection functions and automatic sequence recognition.
  12. Over-torque Protection: Two levels of protection are provided; level one is for normal operating torque, and level two is the maximum safety value for equipment protection.
  13. Unjamming Function: Automatically attempts three reciprocating impacts; if the jam is cleared, it continues running; otherwise, an alarm is triggered.
  14. Start Frequency: Brushless DC motors ensure that the actuator can immediately change direction without damaging the motor.
  15. Frictionless Electronic Measurement Technology: Achieves precise valve position control without overshooting.
  16. Modular Design: Independent unit design facilitates maintenance and upgrades.
  17. ESD Function: Prioritizes ESD function control in emergency situations.
  18. Separate Installation: Suitable for high-temperature, narrow-space, and severe vibration environments.
  19. Fieldbus (Optional): Modular circuit design allows for the addition of ModBUS, ProfiBUS-dp, HART functions.
  20. Supports 4G and Wireless Remote Control: Suitable for outdoor environments.
  21. Solar Power Supply and Wireless Signal Transmission for Power-free Areas: Supports solar power supply and wireless signal transmission in areas without electricity.
  22. Energy Saving and Environmental Protection: Compared to AC motors of the same power, it can save 40-50% energy.

Purchase Guide

When choosing the actuators, customers should select suitable models based on information such as valve torque, working conditions, and valve size. It is recommended that when choosing an electric actuator model, 60% – 80% of the rated output torque of the actuator should be used as the working torque of the valve. If the application scenario is very important or the environment is complex, customers should provide design drawings and detailed parameters as much as possible for the company’s experts to review and recommend matching products.

Downloads

Product Brochure
  • Brochure
  • Datasheet