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Technical Data
Display Unit Button Functions
Button
Picture
Main Functions and Key Information
TEST/RESET
TEST
RESET
Switch between normal and test modes. Can only be switched when the motor is stopped.
Clears the trip if a trip has occurred. Ensure that the cause of the failure has been removed before resetting.
In the menu screen, press to move to the higher settings menu.
DOWN
Move setting menus, or decrease set value.
Manually switch phases sequence when the current values by phases are shown. (R → S → T → R sequence)
UP
Move setting menus, or increase set value.
Manually switch phases sequence when the current values by phases are shown. (R → S → T → R sequence)
SET
SET
Press to apply the indicated setting when adjusting settings and parameters.
In the menu screen, press to move to the lower menu.
Three Phase Digital Ammeter Function
The display cycles by default every 2 seconds between R, S and T phases to show the real-time RMS current value and load ratio for
each phase current. The indicator LEDs on the left show which phase is being displayed.
Use the directional buttons to quickly cycle between each phase to check the values. When no further key presses occur for a while,
the display reverts to the automatic cycle mode.
2 sec
R
S
T
C
A
%
60 70 80 90 100 110
R Phase Current
R
S
T
C
A
%
60 70 80 90 100 110
S Phase Current
R
S
T
C
A
%
60 70 80 90 100 110
T Phase Current
2 sec
2 sec
Relay Circuit Test Procedure
Check the relay and circuit with the TEST/RESET button.
1. Check the circuit connection before testing.
2. Pressing the TEST/RESET button on the relay will display TEST
until the trip is initiated, and the terminal output changes to
simulate an overcurrent trip.
3. Test the circuit and motor based on the pre-set maintenance
schedule.
4. After the test is complete, press the TEST/RESET button on the
relay again to restore to normal operation mode.
Trip Reset Procedure
Three methods for clearing a trip are available.
1. Manual reset : Press the TEST/RESET button on the display unit
to reset after a trip.
2. Electrical reset : When the electrical reset function is active,
reset occurs when the relay’s power is turned back on after
being turned off. When the function is deactivated, the trip
status is left unchanged even when power is reestablished.
3. Automatic reset : The relay resets after a pre-set period of time
after the occurrence of a trip. The timer resumes after the power
is turned off and on before the reset takes place. The “Automatic
Reset” function becomes inactive after being activated five times
in succession. This function becomes active again after being
manually or electrically reset. Manual reset is always available by
default, with the user able to activate or deactivate electrical or
automatic reset.
Functions
8
Electronic Motor Protection Relays
Summary of Contents for Earth Leakage HGMP N60 Z
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