To beneath pressure protection link.

Bridge crane requirements for electrical control
1 weight should be along the upper, lower, left, right, front and rear directions, and can at the same time in the three-dimensional movement direction. In addition to the downward movement, the remaining five should set the direction of the terminal endpoint protection.

(2) be a reliable scissor pallet truck device, even in case of power failure, the weight will not fall because of its own weight.

3 should have a greater speed range, in the Scissor lift state begin to exercise, start at the lowest speed began to accelerate, acceleration is not too large.

4 To prevent overloading or speeding danger may arise, to have short-term overload protection. Overcurrent relays generally used as a circuit overload protection.

5 To beneath pressure protection link.

6 have security measures. ?