119711-02 | SP-145472/145470 PC Board

The Discrete Adapter Board connects directly to the Main Control Board
using either Port A or Port B of the Microbus Interface. This interface
supplies the Adapter Board with all logic voltages and communication
capabilities. All user connections to the board are made at Terminal Block
TB-3 located at the bottom of the 1395 Drive
s The Discrete Adapter Board contains four programmable discrete inputs.
The two standard configurations allow for either 120V AC signals or
24V DC signals. These optically coupled inputs provide a means for
external control of the 1395 via pushbuttons, relays, switches, etc. Digital
Input 1 is typically operated from a Normally closed device, while Digital
Inputs 2 through 4 are typically operated from Normally open devices.
Terminal Block TB-3 is used to make the external connections.
TB3-47 Input Common
TB3-48 Digital Input 1
TB3-49 Digital Input 2
TB3-50 Digital Input 3
TB3-51 Digital Input 4