N U M E R I C A L O C / E F P R O T E C T I O N R E L AY AD R 1 4 1 C / 2 4 1 C
ASHIDA Electronics Pvt. Ltd.
Ref: Manual / ADR141C / 241C
Issue: 04D
Date : 10.07.2014
Page
19/86
8.1 USER
INTERFACE
8.1.1 LCD
Display
Back-lit LCD display 16 character by 2 line is provided for parameter and setting display and
for easy viewing of measurement, setting, fault records, date & time, error message. Back-lit
will automatically switch off if any push button key will not be pressed for more than 100sec.
The display back-lit can be made ON by pressing any push button key. Back-lit is also
automatically turned ON when any tripping occurs on particular equipment.
8.1.2 Touch
Keys
The function of relay is controlled by the following keys, Left Arrow key (
), Right Arrow key
(
), Up Arrow key (
+
/
), Down Arrow key (
- /
) and LED Reset Key and HW Reset Key
which are provided on the Front Plate.
•
When the Right Arrow key (
) is pressed the operator is able to view the setting of the
relay. When the Right Arrow key (
) is pressed again it will go to the next setting page,
but in case there are no more setting to be displayed it returns to the main menu.
•
When the Left Arrow key (
) is pressed than you are able to enter the setting which can
be now modified in the Main Menu using Up Arrow key (
+
/
) Down Arrow key (
- /
).
When the Left Arrow key (
) pressed again it will go to the next setting.
•
The Up Arrow key (
+
/
) is used for two purposes: 1) (
) To scroll the Main Menu and
2) (
+
) To increment the value in the setting mode.
•
The Down Arrow key (
- /
) is used for two purposes: 1) (
) To scroll the Main Menu and
2) (
-
) To decrement the value in the setting mode.
•
The Left Arrow key (
) Right Arrow key (
) can be used to go forward or backward,
both when doing the settings and while viewing the settings
‘LED RESET/EDIT’ key
•
‘LED RESET/EDIT’ key is used to Reset the Trip Flags.
•
‘LED RESET/EDIT’ key is used to display the Curser while setting the Password and the
Relay Led Configuration.
•
LED RESET/EDIT’ key is used to discard while doing the settings and abort to Main
Menu.
Note:
At the time of setting if changes are not carried within 100s then the display will reset
itself and return to the main menu.
‘HW RESET’ key
‘HW RESET’ key is never require in normal operation, It is in series with ‘LED RESET/EDIT’
key, When both keys are pressed simultaneously it reset total hardware of relay. This
normally is required during firmware update of relay.