Application of Siemens Electric Actuator
The 2SA series (S series) multi-rotation electric actuator is used in the open-loop control system. It is suitable for the control of the control valve. It mainly operates in the "on" and "off" positions, and can also set the middle position according to the need.
If on the basis of 2SA switching electric actuator, the LK-2 power control part of the electrical control unit is the integral control electric actuator, which has the functions of field operation and remote operation, and the field debugging is very convenient, it can switch and remote control all kinds of valves in the open-loop control system. The LK-2 is composed of several modules, such as thin-film key panel, multi-function board, control power supply, plug-in board and AC contactor. The electronic control part can be easily disassembled and replaced by connecting the executive plug-in and fastening bolt with the electric actuator. The LK-2 power control part can also be installed in the centralized control room according to the need. control

Inspection and proofreading of Siemens electric actuator
Normally, the electric actuator does not need maintenance (except for periodic wetting of the connection part of the output thrust), and routine inspection is usually carried out every three months to determine:
1. Compliance with specified technical parameters
2. Whether the operation of electric actuator is normal (such as vibration, noise, etc.)
3. Whether the fastening parts (such as bolts) are loose or not
4. Is there any oil leak?
These are only routine checks. If further checks are to be carried out, specific system conditions must be carried out. The problems and deviations found in the checks should be corrected immediately. The overall inspection of the actuator should be carried out when the lubricating oil in the reducer is replaced, and the unit with the inspection ability should undertake the work.

Maintenance of Siemens Multi-Rotary Electric Actuator
Before the maintenance of electric actuator, necessary safety measures should be taken to ensure the safety of maintenance. In the process of maintenance, the main circuit and its branches should be cut off, and the cable on the actuator should be dismantled. The live parts around should be isolated.
The characteristics of Siemens multi-rotation electric actuator:
1. Advanced design, complete series, can fully meet the needs of automatic control in power plant, petrochemical, metallurgical, municipal and other industries.
2. It has reasonable structure, strong versatility and can meet the needs of various supporting functions.
3. It can provide more than two halfway signals (i.e. halfway signals in the process of switching on and off).
4. It has dust-proof and waterproof performance. Its protection level is IP67 (IP68 can be customized for special requirements).
5. Easy adjustment, accurate travel and s-moment control.
6. It has functions of automatic phase sequence identification, phase-absence protection and motor overheating protection.