10
5
Troubleshooting
Possible errors that occur can be read out via the existing display or also the RCT Power App. A detailed list of errors and
possible remedies can be found in the user manual. Remote access is also possible via the RCT portal. The software version of
your unit is also shown on the display or in the RCT Power App.
6
Disconnect the system from the power supply
Always disconnect the system from the power supply before carrying out any work.
If you want to disconnect the unit from the power supply, please carry out at minimum steps 1-4 and 7.
Danger to life or serious injury from electric shock!
•
Work involving wiring, connecting or opening the inverter enclosure must be carried out
by qualified personnel.
•
Ensure that other persons stay away from cables and internal components.
Step
description
1
Turn the DC load-break switch to "0" (See Fig. 1 b).
2
Switch the battery off via the ON/OFF switch on the master, to position "0".
3
Disconnect the inverter from the grid using the external circuit breaker or main switch.
4
Wait 10 minutes until the capacitors are discharged.
5
Disconnect the DC side (PV and battery):
Remove the battery and DC connectors. Squeeze the connector latch and unplug the connector.
6
Disconnect the AC side:
Remove the cover of the inverter.
Look for the AC terminal block (see Fig. 5-1).
Press down on the terminals with an insulated screwdriver to open the terminals. Pull out the cable ends
L1, L2, L3, N and PE.
Loosen the PG gland and carefully pull out the AC cable.
Alternative:
Secure the external circuit breaker against being switched on again.
7
Determine absence of voltage by measuring at the DC and AC terminal block
