Views:3 Author:Site Editor Publish Time: 2019-11-06 Origin:Site
Nowadays, the crane widely uses the method of wireless crane control, and the remote operation mode has the characteristics of improving working conditions and facilitating operation. In particular, the wireless crane control operation method is widely used in some stone plate manufacturers. It avoids the driver's personal accident caused by the derailment of the crane or the falling of heavy objects. However, when using the wireless crane control method, there is a difference between the safe use and the manual control using the conventional cable.
You will know as following：
Definition of wireless crane control
Safe operation requirements
The wireless crane control is a device that uses radio transmission to remotely control or remotely control industrial machinery. The industrial remote controller is a transmitting device made of a wireless transmitting circuit board to control the operation of industrial machinery.
In general, the scope of wireless crane control is: places where wired devices are not allowed, places where work efficiency is desired, places where the environment is bad, or where creatures cannot be close.
The industry's wireless crane control is mainly used in industrial construction, mining, container terminals, warehousing, machinery manufacturing, chemical, paper, engineering machinery and other heavy industries, using remote control to achieve remote operation of the industry. Specific application areas: cranes, driving. Large heavy industrial machinery such as hydraulic cranes, concrete pump trucks, roller coasters, mining machinery, cranes, large cranes, dump trucks, hoisting locomotives, and cranes.
Cranes with wireless remote control should have various protection functions of the original crane, such as zero position, over current, and stroke. When the remote control uses a non-automatic reset joystick, all control handles should be in the zero position before the operation can issue a control command. When the master controller and the contactor are controlled, the master controller must be in the zero position and the remote controller can be connected to the crane's main power network. When the crane is unexpectedly powered off, the remote control should stop working. When the power supply is restored, the remote control must be connected to the main power circuit of the crane through the correct starting procedure. When the power supply voltage of the remote control is insufficient, the stop command should be issued by the automatic control function.
Cranes with wireless remote control should be equipped with a total contactor or an air circuit breaker with a voltage loss trip to cut off the total power supply to the crane. All units' power supplies must be routed from the outlet end of the main power contactor. The main power contactor or the circuit breaker with the voltage loss tripping coil shall be able to cut off the total power supply of all the mechanisms, and all the mechanisms will stop running.
A crane with wireless remote control. An obvious remote indicator light should be provided on the crane to indicate that the machine is operated with a remote control.
The relays and contactors operating in forward and reverse directions shall be electrically interlocked. If necessary, the contactor may be mechanically interlocked, and the forward and reverse running codes of the motion mechanism in the receiving processor shall be software interlocked.
The use of the new wireless crane control is different from traditional controllers, so operators need to pay attention to some related safety operations. This is not only the guarantee of production safety but also the respon