Keypad; Entering Alphanumeric Text; Entering +/- Signs - GE 489 Instruction Manual

3.1 OVERVIEW
3
The 489 messages are organized into pages under the headings
gates through the programmable parameters (setpoints) page headers. The
parameters (actual values) page headers.
Each page is divided into logical subgroups of messages. The
these subgroups.
The key is dual purpose. It is used to enter the subgroups or store altered setpoint values.
ENTER
The key is also dual purpose. It may be used to exit the subgroups or to return an altered setpoint to its original
ESCAPE
value before it has been stored.
The and
VALUE VALUE
numerical setpoint values. These values may also be entered with the numeric keypad.
The key may be pressed at any time for context sensitive help messages.
HELP
To customize the 489 for specific applications, there are several places where custom text messages may be programmed.
One example is the
MESSAGE SCRATCHPAD
sages.
For example, to enter the text, "Generator#1"
1. Press the decimal key [.] to enter text edit mode.
2. Press the
VALUE
tion.
3. Repeat step 2 for the remaining characters: e, n, e, r, a, t, o, r, #, and 1.
4. Press to store the text message.
ENTER
The 489 does not have a '+' or '–' key. Negative numbers may be entered in one of the following two ways:
• Press the
VALUE
• Once a numeric setpoint is entered (after pressing at least one numeric key), press the
change the sign, if applicable.
3-4
Figure 3–5: 489 KEYPAD
keys scroll through variables in setpoint programming mode and will increment/decrement
. The following example demonstrates how to enter alphanumeric text mes-
or key until "G" appears, then press the decimal key to advance the cursor to the next posi-
VALUE
or keys the scroll through the setpoint range, including any negative numbers.
VALUE
489 Generator Management Relay
and
SETPOINTS ACTUAL VALUES
key navigates through the measured
ACTUAL
and keys are used to navigate through
MESSAGE MESSAGE

3.1.6 ENTERING ALPHANUMERIC TEXT

3 OPERATION

3.1.5 KEYPAD

. The key navi-
SETPOINT
3.1.7 ENTERING +/– SIGNS
or key to
VALUE VALUE
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