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3. External Connection

SMC-4DF-PCI, SMC-8DF-PCI

Connection with the opto-coupler input

CW+

CW-

CCW

CCW+

CCW-

Board

Driver Unit

AM26LS31 or equivalence to it

CCW

GND

Figure 3.8. Pulse output circuit (connection with the opto-coupler input)

Connection with TTL level input

CW+

CW-

CCW

CCW+

CCW-

Board

Driver Unit

AM26LS31 or equivalence to it

GND

Vcc Vcc

CCW

Vcc

Figure 3.9. Pulse output circuit (connection with the TTL level input)

CAUTION

- The pulse output part of this product outputs the voltage by 2.5V or more at the High level output,

and outputs the voltage of 0.5V or less at the Low level output. When connecting with the

photo-coupler input or the TTL level input, please connect it after confirming the specification in the

pulse input part of the driver unit operates by the above-mentioned voltage.

In addition, please insert a current-limiting resistor according to the allowable current and drive

current of the connected input circuit.

- To prevent the circuit from malfunctioning due to noise, wire it as far away from other signal lines

and noise sources as possible.

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Carrier 8DF-13 Guida Utente Pagina 44