4�7�3�- FAULT TRIP
When the device is tripped by a current fault, the red and yellow LED comes on and the backlit 
LCD is red. There remains the display of the current of the last cycle that the relay has tripped.
To reconnect press RESET to return to the initial status. 
Figure 19: Fault trip�
4�7�4�- REMOTE TRIP
When a trip is forced (input terminals 1-2, by applying 230 V) the device is tripped and disabled 
and an “EXT” message is shown on the display in red and also the LED is on. It has to remain 
permanently in this situation until the change in status no longer exists. It is not possible to 
manually reset or reset using communications.
Figure 20: Remote trip�
When it is remotely reset (input terminals 1-2, removing the 230 Vac) the equipment is recon-
nected with the display backlit in green, LED ON in green as in normal status.
For the RGU-10C, a remote trip/reset can also be made via RS-485 communications. The de-
vice remains tripped showing this incidence on the display with a “REM” message in red with 
also the LED ON. It has to remain permanently in this situation until the change in status no 
longer exists. 
Figure 21: Remote trip via RS-485�
It is reset when the remote reset is carried out using RS-485 communications, applying 230 
Vac between the remote 1-2 input terminals or by pressing the RESET button. The device is 
reconnected with the display backlit in green, LED ON in green as in normal status.