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

Page 175

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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

∨∨

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