CHAPTER 1: GETTING STARTED
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–7
Z Press the MESSAGE X or ENTER key to display TRIP COUNTERS
message.
Z Press the
MESSAGE X or ENTER key to reach the TOTAL NUMBER OF
TRIPS message and the corresponding actual value.
Z Press the
MESSAGE T key to display the next actual value message as
shown below:
Z Press the
MESSAGE T or MESSAGE S keys to scroll the display up and
down through all the actual value displays in this corresponding sub-
page.
Z Press the W
MESSAGE key to reverse the process described above and
return the display to the previous level.
Z Press the W
MESSAGE key twice to return to the A4 MAINTENANCE page
header.
1.2.2 Panel Keying Example
The following figure provides a graphical example of how the keypad is used to navigate
through the menu structure. Specific locations are referred to throughout this manual by
using a ‘path representation’. The example shown in the figure gives the key presses
required to read the average negative-sequence current denoted by the path
A3 LEARNED
DATA Z PARAMETER AVERAGES ZV AVERAGE NEG. SEQ. CURRENT.
Z Press the menu key until the relay displays the actual values page.
îš„ TRIP [Z]
COUNTERS
TOTAL NUMBER OF
TRIPS: 0
DIGITAL INPUT
TRIPS: 0
îš„ TRIP [Z]
COUNTERS
îš„ ACTUAL VALUES [Z]
A4 MAINTENANCE
Courtesy of NationalSwitchgear.com
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