Automatic phase correction
The electric actuator has a power program identification function. Regardless of the phase sequence of the three-phase AC power, the actuator will rotate in the correct direction. On-site installers do not need to consider the phase sequence of the input three-phase AC power when wiring, thus avoiding damage to the valve and actuator caused by incorrect wiring.
Phase loss protection
To prevent overheating when the three-phase motor loses phase, the phase loss protection circuit in the electric actuator will continuously monitor the three-phase power supply. If one phase is lost, the actuator can block the control circuit of the motor and send an alarm signal.
Forward and reverse protection
When the actuator is rotating in one direction, such as performing a valve opening action. If a valve closing command is received, the control circuit inside the actuator will first run a stop command and delay for a period of time before executing a valve closing command. This technology will reduce the impact of motor current, extend the life of the contactor, and prevent the impact load from damaging the mechanical rotating devices such as the valve stem and gearbox, thereby effectively protecting the valve.
Motor overheat protection
A thermal switch is embedded in the motor coil of the actuator. Once the coil temperature exceeds the preset value, the thermal switch will disconnect the corresponding contacts, prohibit the actuator from running, and send out an alarm signal.
Real-time diagnostic function
The actuator has a powerful real-time diagnostic function, and the actuator status can be detected through the diagnostic menu.
