Yaskawa Remote Keypad Assembly for use with Microtrac DSD Manual de usuario descargar pdf (Pagina 2)

OPERATIONAL DESCRIPTION

When any key on the keypad is pressed, the

"row" and "column" lines for that position are

shorted together to produce a "closed" switch

condition. If the "KEYBOARD ENABLE" input

to the RDU is active, the RDU scan recognizes

this as a keypress input. For RDU response

to keypresses, refer to the "RDU KEYPAD

FUNCTIONS" section of the User Reference

Sheet for the RDC.

When the RDU is performing self-diagnostics,

pressing any key on the keypad will interrupt

the exercise of the alphanumeric (upper)

display of the RDU, and the XY coordinate of

that key position will be displayed (refer to

the "SELF-DIAGNOSTICS" section of the User

Reference Sheet for the RDU).

RD 880-10

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Yaskawa Remote Keypad Assembly for use with Microtrac DSD Manual de usuario Pagina 2