Plus™ and
PM™
Units
2.
Mode
Trip Unit Operating Mode
Key
Symbol
Setup
Metering
Status
FU N CTION
Select one of three modes: Setup, Metering, Status
S ELECT
[I]
Select next programming
Select next metering
Select next status
display
display
display
VALU E
�
Display next set point or
time-delay value
Display next phase value
No effect
ENTER
IT]
Store set point or time-delay
value into memory
No effect
No effect
Table
10.
Actions of function keys in Trip Unit operating modes.
SETUP
METER
Figure
B.
Operation of FUNCTION key, showing progression among Trip Unit operating modes.
Set points are entered into memory in three steps:
display, select, and activate, as described below:
1.
Press the
VAL U E
key until the desired set point
is displayed flashing on the LCD.
2.
Press the
ENTER
key to select this set point. The
displayed value stops flashing and the
SETUP
icon flashes on the LCD. This indicates that the
value has been stored in memory but is not yet
active. If a new set point is displayed but not
selected by pressing the
ENTER
key (set point
value still flashing) , then the displayed set
point is not entered into memory and the
original value is maintained. Multiple set point
changes can be made in this fashion without
changing the active settings. For each of these
changes, the
SETUP
icon continues to flash.
3.
Press the
FUNCTION
key to activate these settings
in the Trip Unit. The
SETUP
icon no longer
flashes, which indicates that any selected
11
settings are also currently active. The
FUNCTION
key should always be pressed following set
point changes to ensure that the active settings
match the stored settings.
The set point change steps are summarized as
follows:
•
Displ ay set point - Press the
VAL U E
key until the
desired setting is flashing.
•
Select s et point - Press the
E N T E R
key; the
setting stops flashing and the
SETUP
icon starts
flashing.
•
Activate s et points - Press the
F U N CTI O N
key to
activate the settings; the
SETUP
icon stops
flashing.
Always confirm settings on the Trip Unit after
making changes by exiting and re-entering Setup
mode and rechecking each changed setting.
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