Jact special frequency converter for lifting

2019-12-12 13:24:57 jact_elec

Jact special frequency converter for lifting

Jact hoisting and liftingspecial frequency converter is a special product for industry applications such as portal cranes, electric hoists, tower cranes, and construction hoists. Using frequency conversion speed regulation technology, it has good torque control function, reliable brake control, fast stop, DC excitation, master-slave control and other technologies.

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It reduces the impact of the motor on the mechanical system when starting and stopping, and improves the stability and comfort during the operation of mechanical equipment. Extend the service life of mechanical equipment, greatly improve production efficiency, and save equipment maintenance costs.


Special frequency converter for lifting Features:

1. Large torque at low speed, small torque ripple
2. Customized for hoisting and lifting, portal cranes, and tower cranes
3. Timing sequence of special lifting brake, safe and reliable
4. Timing diagram of lift start and stop mode

5. Low-voltage adaptive function: When the input voltage is unstable or drops instantaneously, the frequency conversion automatically diagnoses the output with the rated torque to ensure that the hook does not slip.

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6. Stall protection function: when the actual speed is detected to exceed 115% of the rated speed during operation, the inverter will immediately send out a brake signal to realize emergency braking (effective in closed loop mode).
7. It supports four communication protocols: Profibus-DP, Modbus, CANopen, and Profinet, which is convenient to realize the communication connection between multiple inverters and PLC and HMI.
8. Reloading high-speed function: According to the weight of the crane, the speed will be automatically increased when the load is light or when the hook is empty, which effectively improves the working efficiency of the crane.
9. Zero-speed torque holding function: When the brake is closed, the motor outputs enough torque to keep the load stationary and prevent the brake from sliding down due to a long mechanical delay.
10. Internet of things expansion port: realize the satellite positioning and remote monitoring of the Internet of things, and facilitate the establishment of an intelligent information management system (under development).
11. Zero-servo hovering function (closed-loop mode): In the zero-speed state, the brake is kept open to keep the lifting mechanism hovering still in the air.
12. Function parameter copy function: the inverter parameters after debugging can be copied to other inverters of the same application through the keyboard, thus simplifying the debugging work.
13. Built-in special control functions such as lifting synchronization, cart deviation correction, trolley synchronization, grab control, anti-sway control, tower crane, elevator, etc.
14. Motor fan control function: output immediately when running, and output delayed stop when stopped.