Features :

• ~ Low voltage adaptive function: when the input voltage has instability or instant reduction, to avoid slide-hook, the frequency inverter will make automatic diagnosis to output as rated torque.
• ~ Stall protection function: during operation, if the detected actual speed exceeds 115% of rated speed, the frequency inverter will immediately issue a braking signal to achieve emergency brake ( valid under closed-loop mode).
• ~ Supporting three communication protocols: it supports Profibus-DP, Modbus and CAN-open, easy to achieve communication links between inverters, PLC and HMI.
• ~ High speed at light load function: according to the weight carried by construction lift, it can automatically increase the speed when light load or empty hook happens to effectively improve its working efficiency.
• ~ Zero-speed torque retention function: when the brake is off, the motor outputs enough torque to keep the load stationary, preventing the brake from falling due to the long mechanical delay.
• ~ Special logic control for braking: it ensures a safe and reliable system through the brake's releasing frequency and current, brake's releasing and closed time, achieving the special logic control.
• ~ IOT extended port :it realizes IOT satellite positioning and remote monitoring, which will be easy to set up intelligent information management system.
• ~ Zero servo hovering function (under closed loop mode): Keep the brake open and the lifting mechanism hovering in the air at zero-speed.
• ~ Copying function parameters: after debugging, the parameters on frequency inverter can be copied to other applications through keyboard to simplify debugging work.
• ~ Specially designed built-in control functions for synchronous lifting, cart correction, car synchronization, grabbing control, anti-sway control, tower crane, construction lift and so on.
• ~ Control of the motor fan: immediate output while running, delayed output while stopping.