Technical Description; Hardware Description; Outline Of Front Panel - Toshiba GRE110 Instruction Manual

3. Technical Description

3.1 Hardware Description

3.1.1

Outline of Front Panel

The case outline of GRE110 is shown in Appendix F.
As shown in Figure 3.1.3, the Human Machine Interface (HMI) panel has a liquid crystal display
(LCD), light emitting diodes (LED), operation keys and a USB typeB connector on the front panel.
The LCD consists of 16 columns by 8 rows (128x64dots) with a back-light and displays recording,
status and setting data.
There are a total of 14 LED indicators and their signal labels and LED colors are defined as
follows:
Label
IN SERVICE
TRIP
ALARM
Relay Fail
CB CLOSED
CB OPEN
LOCAL
REMOTE
(LED1)
(LED2)
(LED3)
(LED4)
(LED5)
(LED6)
LED1-6 are user-configurable. Each is driven via a logic gate which can be programmed for OR
gate or AND gate operation. Further, each LED has a programmable reset characteristic, settable
for instantaneous drop-off, or for latching operation. A configurable LED can be programmed to
indicate the OR combination of a maximum of 4 elements, and the LED color can be changed to one
of three colors- (Red / Green / Yellow), the individual statuses of which can be viewed on the LCD
Color Remarks
Green Lit when the relay is in service and flashing when the relay is in "Test"
menu.
Red Lit when a trip command is issued.
Yellow Lit when a relay alarm is detected.
Red Lit when a relay failure is detected.
Red/Green/ Lit when CB is closed.
Yellow
Green Lit when CB is open.
Yellow Lit when Local Control is enabled
Yellow Lit when Remote Control is enabled
User-configurable
Red/Green/
Yellow
Red/Green/ User-configurable
Yellow
Red/Green/ User-configurable
Yellow
Red/Green/ User-configurable
Yellow
Red/Green/ User-configurable
Yellow
Red/Green/ User-configurable
Yellow
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