TWERD Power Electronics PS100-WT - Inverter with PV Photovoltaic Panels Input

Chapter 6. OFF-GRID installation
6.2. Inverter with PV photovoltaic panels input
PV1
(MPPT 1)
PV2
(MPPT 2)
PS100-PV+BC
R
TWERD
- +
Battery
-
+
ps100-06.5-en
Protection
L
NPE
PV2 input is available
only in 5.5 kW inverters
230V, 50Hz:
Electric loads or
connection point to
the electricity grid
Fig. 6.2. Power circuits wiring diagram for PS100-PV+BC inverter
W hen connecting photovoltaic panels, follow the order of steps below:
1. Set the PV switch to OFF.
2. Remove the 4 screws securing the inverter cover.
3. Connect electrical loads to terminals L, N, PE.
4. Connect the earth electrode to the PE terminal and connect the N and PE terminals together.
5. Measure the voltage of solar panels and their polarization.
6. Connect the solar panels to the dedicated PV connectors.
7. Connect the battery observing the safety rules described in section 13…. describing the charger
module.
8. Set operating mode 0: "Off-grid" or 2: "auto on-off-grid" in parameter 1.1.
Note: for operation in mode 2: "auto on-off-grid" it is required to connect the PS100-INT module.
9. Screw in the inverter cover.
10. Set the PV switch to ON.
11. Wait a moment to check if the device is detecting a failure.
PS100 – User manual 29