Digital Phase Open & Reverse Phase & UnderVoltage Relay (GDR-JD01) User's Manual V1.10
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Kyongbo Electronics Co., Ltd.
5.2 Key Pad & Communication Connector
Direction (
) Key
Used for setting value changes and moving between menus.
ENTER
(
)
Key
Key used to confirm changes in menu or setting.
Reset
(
)
Key
Key used for Indicator Reset when the relay is in
operation, and to verify the settings without opening the
cover when a fault has not occurred.
Menu
(
)
Key
Key to verify and change all the information such as setting
values and fault record.
RS-232C Connector
RS-232C Connector enabling setting value changes from PC
with mutual communication with PC.
【
Table 5.1
】
Key Pad & Communication Connector
5.3 LED ( Operating Indicators )
Run
( Green )
As a LED indicating that the power is supplied and the CPU of
the protection relay is running normally, it is lighted in normal
condition, and if it is not lighted when the power is supplied, it
means the CPU is not running, and there is a serious problem in
the equipment, so it requires repair or replacement.
Error
( Red )
When there is a fault in the equipment and the fault is detected by
the self-diagnosis function, Error LED is lighted red, and the
protection relay element operation is blocked. The details of the
fault can be viewed through LCD with Key operation, and when the
fault is cleared, it is recovered with the lighted LED turning off.
Pick-up
(Yellow)
When the POR, RPR and UVR element is Picked Up by
matching the set condition, Pick-Up LED is lighted yellow, and
it is turned off automatically when it is recovered.
Trip
( Red )
As an operation indicator of POR, RPR and UVR element, when the
element operates, it outputs Trip and Trip LED is lighted red at the
same time. Even if the protection element is recovered, the lighted
LED at this state is kept on until Reset (
) Key is pressed.
【
Table 5.2
】
LED ( Operating Indicators )
