Operation Of The User Interface - Toshiba GRT100 Series Instruction Manual

RS485
connection
terminal

4.2 Operation of the User Interface

The user can access such functions as recording, measurement, relay setting and testing with the
LCD display and operation keys.
4.2.1 LCD and LED Displays
Displays during normal operation
When the GRT100 is operating normally, the green "IN SERVICE" LED is lit and the LCD is
off.
Press the VIEW key when the LCD is off to display the digest screens which are "Metering",
"Latest fault" and "Auto-supervision" screens in turn. The last two screens are displayed only
when there is some data. The following are the digest screens and can be displayed without
entering the menu screens.
36-pin terminal block
PORT-1
(COM1)
Figure 4.1.1 Locations of Communication Port
M e t e r i n g 1
I a 1 * * * . * k A
I b 1 * * * . * k A
I c 1 * * * . * k A
M e t e r i n g 2
I a 3 * * * . * k A
I b 3 * * * . * k A
I c 3 * * * . * k A
Note: I 1 for primary(high-voltage) winding current
I 2 for secondary(medium-voltage) winding current
I 3 for tertiary(low-voltage) winding current
Ia , Ib , Ic for phase current
20-pin terminal block
PORT-2
(COM2)
0 8 / D e c / 1 9 9 7
I a 2 * * . * * k A
I b 2 * * . * * k A
I c 2 * * . * * k A
0 8 / D e c / 1 9 9 7
 69 
6 F 2 S 0 7 8 9
IRIG BNC
connector
2 2 : 5 6
I n 1 * * . * * k A
I n 2 * * . * * k A
2 2 : 5 6
I n 3 * * . * * k A
V * * * . * k V
* * . * H z