How do you protect the crane from the hook?
It is usually the time difference between the adjustment of the motor and the brake. When the goods are suspended in the air, the brakes are generally released and then the motor starts. If the brake has to loosen, motor torque and didn't rise to a certain value, the goods will move down first, and then gradually establish with motor torque suspended, and then move up again. That's what I call a "slip hook" here. A slip hook is dangerous and can cause an accident and should be solved. It is usually the time to adjust the brake, when the motor creates a certain torque, then loosen the brake. You can ask the electrical person to increase the delay time. If, for example, it turns out that the motor does not release the brakes after 0.1 seconds, you try to add up to 0.15, 0.18, 0.2 seconds and then let go. There is no one set of rules, only a little to try out. But don't add too much attention to the delay.
You can use specific modules to avoid slipping hooks, but you can't expect your company to change the machine because of a slip hook. It is important to note that some of the hooks are caused by the aging of the brake or the overload. In this case, you must change the brakes and prevent overload.
If your problem is solved, you will be able to solve the problem from the overload and the adjustment of the brake. If it is to protect the suspender and the person, it is forbidden to lift and keep people away.
