XCMG XDN450 Operation Manual page 38

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coordinates by means of software calculations. The calculated coordinates are communicated
with the PLC via RS232, and the PLC obtains the coordinate values for transmission from the
man-machine interface.
4) 7" display (1): The display of the industrial computer presents the image in the target
box, the laser spot and coordinates.
5) 7" display (2): External camera can be monitored to monitor the scene.
Articulated shield
3.1.1.3
It is equipped with cutter motor, internal hydraulic pump station, internal solenoid valve
group, laser target box, correction cylinder, internal bypass valve, internal and external bypass
valve, pressure sensor, displacement sensor and proximity switch.
1) Cutter-plate motor: The power line will output three-phase 220V voltage from the
electric control cabinet, which can be reversed.
2) Internal hydraulic pump station: The power supply is controlled by a one-way 220V
output from the electric control cabinet, and the pressure source of the hydraulic system is
supplied to the machine.
3) In-machine solenoid valve group: Controls the movement of the hydraulic components
inside the machine. The DC24V electric control solenoid valve is supplied by the target control
box.
4) Laser target box: The built-in camera captures the laser spot position, the DI module
reads the proximity switch signal, the DO module controls the solenoid valve, and the AD
module reads the pressure displacement signal.
5) Correction cylinder: control the nose jacking direction.
6) Internal bypass valve: Control mud open or closed.
7) The bypass valve inside and outside the pipe: control the position of the mud to be sent
out. The inside of the pipe is to send mud water to the inside of the crusher, and the outside of
the pipe is to send the muddy water to the outside of the fuselage.
8) Pressure sensor: Detect hydraulic oil pressure and hydraulic pressure.
9) Displacement sensor: Detect the displacement of the correction cylinder and convert the
correction angle at the same time.
10) Proximity switch: Detects the opening and closing of the bypass valve and the bypass
valve inside and outside the tube.
3.1.1.4 Main pump station
Provides the main oil pressure source of the top cylinder, and provides the pit bypass valve
control oil pressure source. Built-in pressure sensor detects hydraulic pressure, built-in gear
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