China seems to be a veritable candy shop for industrial components via eBay. A very common, and visually pleasing device is the pendant style crane control type of unit. These start at just a few pounds/dollars for a two button up/down unit, and just keep getting bigger right up to a ridiculous looking one that is about 600mm / 24" long monster with an intriguing number of buttons. There are also options for emergency stop buttons and indicator lights.
The units have removable clear button caps for inserting custom function labels, but they also come pre-printed with either traditional arrows or Chinese characters which mean things like up, down, north, south, east and west.
Initially when you look inside it looks a bit minimalist and tacky, but having used expensive hoist controllers in the past I would say that they are very similar. Just a common device engineered to keep costs down.
I'm not sure if alternative diameter glans are available for the cable entry, as the one supplied is quite generous, but it may be to allow the use of a standard size of multicore cable. There's also an attachment point for a chain or lanyard to take the strain off the cable.
It's actually quite an appealing unit. Functional and easy to wire.
The set of buttons at the top are a latching on/off facility, possibly to act as a secondary kill switch in case of control circuit issues.
Each pair of directional buttons has a mechanical interlock to prevent both being pressed at once. It's basically a see-saw / teeter totter arrangement under the buttons and can be removed.
The units have removable clear button caps for inserting custom function labels, but they also come pre-printed with either traditional arrows or Chinese characters which mean things like up, down, north, south, east and west.
Initially when you look inside it looks a bit minimalist and tacky, but having used expensive hoist controllers in the past I would say that they are very similar. Just a common device engineered to keep costs down.
I'm not sure if alternative diameter glans are available for the cable entry, as the one supplied is quite generous, but it may be to allow the use of a standard size of multicore cable. There's also an attachment point for a chain or lanyard to take the strain off the cable.
It's actually quite an appealing unit. Functional and easy to wire.
The set of buttons at the top are a latching on/off facility, possibly to act as a secondary kill switch in case of control circuit issues.
Each pair of directional buttons has a mechanical interlock to prevent both being pressed at once. It's basically a see-saw / teeter totter arrangement under the buttons and can be removed.
That's the only overhead crane design made by China, it seems almost all useless. They don't even dual speed. I'm also an overhead crane technician here in the Philippines. Even the Gantry unit is only single speed.
Im a crane engineer in the UK and although this is a very cheap remote, the busbar system is a lot more practical than linking the control voltage all the way through the functions (UDLR) like we do, the See-saw interlock is also very common. Usually an electrical one too as if you try to take a crane Up and down at the same time youre not going to have a great deal of fun
This is like americans having "walk" and "dont walk" instead of symbols on their pedestrian traffic lights
This just makes me think of the scene in Terminator 2 when Arnie has to die.
Clecko
The ones that I have at work are modular, they have a metal plate with the switches and you slide the actuators onto it from the bottom, each module has 2 interlocked buttons which either actuate 2 switches at once or one when pressed lightly and 2 when you press them fully down depending on the module, they have rubber seals between them and at the bottom there is a key actuated switch for locking it, all the switches are a pair of NO and NC contacts, so with 4 buttons (up down left right) you have 8 NO contacts and 8 NC, they are wired so that the contacts act as interlocks too, in case either the actuators break or the switches, the gromet is also a cone shape, so you cut it at the right mark depending on the cable size, in the end a lift mounted on a rail has interlocks in 3 ways: the actuators like in this one, the switches and as aux contacts on the contactors, you could also add physical interlocks to the contactors but the lifts we have use old style contactors which don't support that (and are spaced quite far apart)
I read that as pednt control station.
Wow, that looks cheap. I service and repair cranes for a living. This thing wouldn't last 5 seconds in an industrial environment. Telemecanique hand sets are very popular (other makes are available) and have a very simple mechanical interlock. Worth taking a look. They normally have a mechanical and electrical interlock in the hand set and both mechanical and electrical interlocks on the 3 phase contractors. Belt and braces. Also most modern cranes have double depression switches as they are 2 speed motors.
Harga nya gan
Crane timing main 1 batan is folt
I have a controller with up and down only. I have 4 wires coming from my hoist. I opened the cover and I have a ground terminal and two other terminals. Any chance you have a idea howi wire the control wires ?