Toshiba GR200 Series Instruction Manual page 663

Outline
Users can perform maintenance on the IED from the front panel. Monitoring is also possible
locally by using a PC connected through the USB cable. This section discusses the
configuration of the front panel and the basic configuration of the screen-menu hierarchy of
the Human Machine Interface (HMI).
Front Panel
(i)
The front panel is provided with a screen (LCD Screen), 26 light emitting diodes (LEDs), 11
operation keys, seven function keys (in the later section the function keys are referred to as F1
to F7.), monitoring jacks and a USB receptacle.
LEDs
Function keys
with LEDs
Monitoring jacks with
LEDs (A, B, and C)
LCD screen
(ii)
The LCD screen provides the user with detailed internal information provided by the IED such
as records, monitoring and settings. Normally, the LCD screen appears blank unless an
operation key is pressed, by pressing any of the operation keys, the LCD screen will display
the top menu. If the top menu is shown on the LCD screen, the user can turn off the screen
backlight by pressing the operation key ◄. When operation is idle for some time, the screen
backlight turns off. By pressing any key except the CLEAR key, the backlight turns on, and
the previous menu will be displayed on the LCD screen.
LEDs
(iii)
As shown in Table 11.1-1, 26 LEDs, each having signal labels and colors, are defined:
Figure 11.1-1 Front Panel
- 649 -
6F2S1931 (0.20)
LCD screen
Operation keys
USB
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)