Chapter2 Connection
Manual of NCH02
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2.3Port Definition and connection
Figure2-2. Port of NCD02
As shown in Figure 2-2, the main controller indicates 1-7 are USB port, main power port,
general input port, general output port, MPG port, spindle port and stepper motor control port.
The detailed description of these functional modules and interfaces is described below.
2.3.1 USB port
As Figure 2-2 showed,No.1 terminal block is USB port, you can connect with NCH02
through this interface.
2.3.2 Main power supply port
As the Figure 2-2 show, The marked No. 2 port is power supply port. The access voltage
range is 24VDC, and the power is not less than 20W.
The positive and negative connection of the
power supply see as the silk printing, See as Figure 2-2, left is GND, and right is "+".
2.3.3 Limit/Home input port
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