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Date Code 20011205
Front-Panel Interface (Only on Models with LCD)
11-1
SEL-311B Instruction Manual
SECTION 11: FRONT-PANEL INTERFACE (ONLY ON MODELS
WITH LCD)
I
NTRODUCTION
This section describes how to get information, make settings, and execute control operations
from the relay front panel. It also describes the default displays.
Note:
This section only applies to SEL-311B Relay models with an LCD. Disregard this
section for relays ordered with Targets Only (no LCD).
F
RONT
-P
ANEL
P
USHBUTTON
O
PERATION
Overview
Note in Figure 11.1 that most of the pushbuttons have dual functions (primary/secondary).
A primary function is selected first (e.g., METER pushbutton).
After a primary function is selected, the pushbuttons revert to operating on their secondary
functions (CANCEL, SELECT, left/right arrows, up/down arrows, EXIT). For example, after
the METER pushbutton is pressed, the up/down arrows are used to scroll through the front-panel
metering screens. The primary functions are activated again when the present selected function
(metering) is exited (press EXIT pushbutton) or the display goes back to the default display after
no front-panel activity for a settable time period (see global setting FP_TO in Settings Sheet 16
at the end of
Section 9: Setting the Relay
; the relay is shipped with FP_TO = 15 minutes).
Figure 11.1: SEL-311B Relay Front-Panel Pushbuttons—Overview
Содержание SEL-311B
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