Internal selector, External selector – Rockwell Automation 2755 Enhanced Decoder Series B User Manual
Page 175

13–6
Configuration: AUX Terminal Data Entry
Publication 2755-833
Internal Selector
The Internal Selector is a jumper on the main logic board, labelled
AUX Terminal. The figure below shows the location of this jumper
on the board.
Internal Selector (AUX Terminal Jumper)
Main Logic Board
Enclosure
LCD DISPLAY
CONTRAST
ADJUST
AUX TERMINAL
DATA
CONFIG.
ENTRY
Internal Selector
∨∨
The jumper has two positions, which determine the mode of
operation that is enabled for the AUX port terminal.
CONFIG (Jumper Right)
With the jumper positioned as shown on the upper left, you can use
the AUX terminal for configuration only. Configuration menus and
screens are enabled. This is the factory default setting.
DATA ENTRY (Jumper Left)
With the jumper positioned as shown on the lower left, you can use
the AUX terminal for manual data entry and display functions only.
Configuration menus and screens are disabled.
External Selector
The other way to switch from configuration to manual data entry
mode is to connect pins 15 and 16 (NEMA Type 1) or G and H
(NEMA Type 4) in the AUX port connector. See Chapter 4 for a
description of the AUX port connector pins.
AUX TERMINAL
DATA
CONFIG.
ENTRY
Default
∨∨
AUX TERMINAL
DATA
CONFIG.
ENTRY
∨∨