CIRCUTOR RGU2 Series - Manual (Page 12)

When the instantaneous leakage current has been measured, the RGU-2 unit will operate in
accordance with the programmed parameters:
- Trip current ( IΔn)
- Trip delay time ( td)
As a result, the status of the device's output contacts will be changed. The output of this contact
will be used as follows, depending on the final application type:
- Earth leakage protection (IEC61008-1), the circuit breakers are activated.
- Earth leakage monitoring (IEC62020), alarm alerts, sound and/or visual devices.
5.1.- KEYBOARD FUNCTIONS
The unit has 3 keys: RESET, TEST and PROG.
PROG Key
Pressing this key displays the different screens and opens the programming mode (hold down
the key for 2 seconds) to adjust the different programming parameters.
This key is sealable; it is supplied with a small hole where the configuration can be physically
disabled.
TEST Key
Press the TEST key to check the connection status of the sensor element and force the tripping
of the unit.
RESET key
Locally rearms the electronic relay, resetting the status of the output contacts to the normal
standby status.
If the unit is in standby status, it will scroll down the model and version (5s) on the green
LCD.
5.2.- DISPLAY
The unit has a green/red backlit LCD. The background will be green under normal conditions.
The display will be red in case of events that cause an action (protection trigger or circuit
breaker being tripped).
Figure 8:Display
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RGU-2 Earth Leakage Relay
Instruction Manual