CIRCUTOR RGU2 Series User Manual
Page 14
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Figure 13:Fault relay screen�
5.3.- LED INDICATORS
The unit has the following LEDs:
LED ON
Green LED, indicates that the unit is voltage-fed.
The LED flashes when problems have been detected in the sensor.
LEAKAGE LED
Red LED indicates that the protection element has been tripped as a result of a residual
current intensity value that is higher than the current threshold required to trip the protection
element.
LED Bar
LED Bar indicates the leakage current level of the installation. The current levels are displayed
as a %, in accordance with the selected trip scale:
20% - 40% - 60% green,
80%
yellow,
100%
red.
5.4.- INPUTS
The unit has two inputs:
External current sensor input (terminals 1 and 2 in
). With this input the unit checks
every 5 seconds whether the connection with the external sensor is correct by means of an
inductive test.
External test input with button (terminals 7 and 8 in
).
Input activated by level. When voltage is applied, this forces the tripping of the unit; when it is
no longer applied the unit returns to the previous state.
The keyboard reset function will be disabled when this input is active.
14
RGU-2 Earth Leakage Relay
Instruction Manual