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User Manual - CNC4PC

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(3) CN1 Interface Circuit and Wire Mode:<br />

The diagram below introduces all interface circuit of CN1 and wire-method of host controller.<br />

(a) Digital input interface circuit (IO1):<br />

Digital input interface circuit can be operated by relay or collector transistor circuit. The relay should be the low<br />

electric current, in order to avoid the faulty contacting. External voltage: 24V.<br />

Internal 24V Power<br />

External 24V Power<br />

Servo Driver<br />

DC24V<br />

IP24<br />

CN1-45<br />

i=4.3mA<br />

5.6KΩ<br />

CN1-47<br />

DICOM<br />

SON<br />

IG24<br />

CN1-49<br />

(b) Digital Output Interface Circuit(IO2):<br />

When using external power, please attention to the power polarity. Adverse polarity will case circuit damage.<br />

Digital output is “Open Collector”. The maximum of external voltage is 24V; and the maximum electric current is<br />

10mA.<br />

Internal 24V Power<br />

External 24V Power<br />

2-19

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