Effective 11/2003
Page 18
I.L. 66A7535H02
The ESCape pushbutton action will keep the factory
settings and then will enter the main menu. The factory
settings are listed in Appendix D-23 and are not valid for
most applications. The appropriate settings need to be
defined by a qualified application engineer to provide best
overall protection and coordination for the power system.
A SELect pushbutton action will provide direct entry into
PROGRAM SETTING menu. The first item presented is
the Current CURVE type. LSIG or IEEE (Digitrip 1150V) or
LSIG or IEC (Digitrip 1150V
i
) current curve types are
possible selections. Pressing SELect again will select the
curve presented in the window center and then step into
the individual elements that need programmed. The VIEW
up and down arrow selects the function while the EDIT up
and down arrow changes value. After they are set they
need to be saved by depressing the SAVE pushbutton.
The saving will place the customer settings in use. Verify
the new settings.
(See Appendix D-13 for program curve
and D-19 for saving and D-5 for view setting menu.)
4.1.2 Pushbutton Definition
View Functions - The “View Functions” group of
pushbuttons is located in the lower right hand side of the
unit and includes the View Up (up arrow), View Down
(down arrow), ESCape, SELect, and Reset buttons.
View Up / View Down
- View Up and View Down allow the
user to scroll through any available menu or submenu.
SELect
- The SELect pushbutton selects the submenu for
the blinking selection located in the middle of the display.
ESCape
- The ESCape pushbutton brings the user up to
the previous menu in the display. Multiple ESC pushbutton
operation will display Main Menu screen.
Reset
- The Reset pushbutton will reset LEDs and screen
data
(See Reset Sequence).
Edit Values
The “Edit Values” group located in the upper left hand
corner of the unit consists of 3 pushbuttons: Edit Up
(indicated by an up arrow), Edit Down (down arrow) and
Save. The Edit Values pushbuttons are covered by a
Plexiglass cover which can be sealed.
Edit Up / Edit Down
- Edit Up and Edit Down allow the user
to scroll up or down, respectively, through available setting
values while in any Program Settings submenu. In the
TEST Menu, these buttons will raise or lower the test level
when performing a self test.
Figure 3.4 PT Module Mounted in Circuit Breaker
4.0 PROGRAMMING/VIEWING DIGITRIP 1150V
(VIA FRONT PANEL)
4.1 Main Menu
4.1.1 Power Up Sequence
When the Digitrip 1150V/1150V
i
unit is first powered-up,
two different display messages are possible. If the Digitrip
has been previously commissioned with customer-made
settings, the display will alternate between “Cutler-Hammer
DT 1150V” and “Customer Settings in Use” messages.
Following this the display will enter into the main menu
(See Appendix D-1).
If Digitrip settings have not been saved previously the trip
unit is using the factory default values. On power up, the
Digitrip will then display “CHANGE FACTORY SETUP?”.
This message will stay on the screen until the user
presses ESCape or the SELect pushbutton or until an
alarm or trip condition is detected.
