NCH02 User’s ManualDigital Dream Motion Controller Page -9
Picture 2-8 The Output Ports definition
Picture 2-9 General Output Port Connect with a Relay
As the Picture 2-8 shows,the interface is an open-ground interface,which can be absorbed not more than
50mA current.The relay with a absorption current of no more than 50mA can be driven directly. If it's more than
50mA, and it is recommended to use a current amplification, for example ULN2803 chip.
The Picture 2-9 is for external power relay method.
2.3 The Output Ports
OUP5
OUP4
OUP3
GND
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