4-20ma High Torque Electric Quarter Turn Actuator Of Power Plant

FRY series intelligent electric actuators ---- intelligent safety protection
◆ Double seal and double protection：
Adopt double seal design structure, strictly implement the provisions of GB/T4942.2 "Protection Level of Low-voltage Electrical Apparatus Shell", to ensure that the actuator can be completely waterproof and dustproof, and the highest protection level can reach IP68.
◆ Automatic phase sequence correction：
The phase sequence synchronous tracking technology is used to automatically recognize the phase sequence of the AC power supply and adjust the actuator to run with the correct control command, effectively preventing damage to the valve due to incorrect power supply connection.
◆ Instantaneous reverse protection
Using instantaneous reversal delay control technology, when the actuator receives the reverse operation control signal during operation, the instantaneous reversal logic will automatically delay the action to prevent damage to the mechanical transmission mechanism caused by the impact load.
◆ Valve automatic blocking protection
By optimizing the operation data process of electric actuators, when the first over-torque action is staged, SY series intelligent electric actuators provide the opportunity to automatically eliminate valve blockage, which can reduce the number of actuator over-torque fault alarms and reduce the user's on-site maintenance workload .
Overcurrent protection: When the electric actuator is running normally, when some reason causes the motor to overcurrent, the control detection unit will terminate the motor to continue running.
Over-torque protection: The electric actuator protects the control valve during operation. When the valve is stuck (over-torque action), the control detection unit will automatically disconnect the control circuit, terminate the motor to continue running, and send out alarms on site and remotely.
◆ Intelligent control security protection：
Independent setting of two-way torque: FRY series intelligent electric actuators have two-way over-torque protection device and stroke limit protection device with simple structure and reliable performance.
Interlocking protection: FRY series intelligent electric actuators provide interlocking control mode in high-security situations. In the interlocking control mode, effective valve opening or closing commands require a corresponding interlocking signal, either of which In the event of a signal loss, the electric actuator will retain its position.
Emergency protection (ESD): FRY series intelligent electric actuators provide flexible emergency protection capabilities. The actuators can individually set the action mode during emergency protection, such as fully open, fully closed or position retention.
Control status protection:FRY series intelligent electric actuators can lock the remote, local or stop status by mechanical lock on the electrical box cover to avoid misoperation; for changing the actuator parameter settings, you need to enter the password to enter the setting interface.
Passive monitoring function: SY series intelligent electric actuator can accurately display the valve position information in the case of power failure, and can also realize the function of querying the operating data of the actuator without external power supply.
Intelligent network security protection (optional): FRY series intelligent electric actuators provide dual redundant and non-redundant fieldbus communication methods. In the dual-redundant communication mode, when one of the channels fails, the communication will be automatically switched to the other channel to ensure that the actuator communication is operating normally.
FRY series intelligent electric actuators ---- fieldbus technology
Fieldbus control system (optional)
Fieldbus technology refers to the automatic control technology of digital, serial, bidirectional, and multipoint communication between field devices and automatic control devices. It puts special microprocessors with digital computing and digital communication capabilities into traditional measurement and control instruments, uses simple twisted pairs to connect them into a network, and implements information exchange and data transmission according to open and standardized communication protocols. Form an automatic control system that meets various practical needs. Solve the problems of digital communication between field instruments such as intelligent instruments, controllers and actuators in the industrial field, as well as the information transfer between these field control devices and advanced control systems.
FRY intelligent electric actuators use microcomputer technology and on-site communication technology, and use reliable communication isolation technology to eliminate on-site interference noise and improve the stability and reliability of the execution of the actuator. It can be perfectly integrated with the control system, effectively improve the level of automation control, and realize the digital factory.
FRY series intelligent bus electric actuators realize the functions required by various control technologies such as two-way communication, online parameter setting, online correction and online diagnosis. In the control room, the operator can perform calibration, parameter setting, function configuration, online monitoring, fault analysis, operation and maintenance and other operations on the field actuators. The use of bus-type electric actuators requires less auxiliary equipment, does not require any isolation, conversion and input and output modules, which can reduce a large number of signal cables and accessories and corresponding installation and maintenance work.
Modbus communication technology: SY series intelligent electric actuators use Modbus modules, use RS485 data bus connection, and use Modbus RTU communication protocol, and the maximum data transmission rate can reach 115.2Kbit/s. It can be easily configured in the current mainstream configuration software to realize the full control function of the electric actuator and the real-time data feedback of the equipment.
FRY series intelligent electric actuators can also be installed with Modbus redundant modules, which can realize redundant bus network through system connection. When the line is disconnected, shorted or grounded from the middle, the bus control system automatically switches to the communication module that can work normally to ensure the normal operation of the system.
Profibus communication technology: SY series intelligent electric actuator adopts Profibus bus interface designed by Profichip's VPC3 special integrated chip to realize the digital communication function of Profibus DP and is fully compatible with EN50170 standard. The data transmission rate is 9.6Kbit/s~12Mbit/s, and the transmission medium is shielded twisted pair or optical fiber.
FRY series intelligent electric actuators provide users with different standard fieldbus control modules. Currently supported communication protocols PROFIBUS-DPV0/DPV1, MODBUS, CANopen, and SY intelligent electric actuators can also provide standard fieldbus interfaces such as DN, HART, FF, etc. according to user requirements.