KACO XP83U-H6 (Canada) - Manual (Page 52)

Page 52
MPPT : If the PV voltage approximates the MPP start voltage (value of “MPPT V Start” parameter), the
MPPT will start. The inverter follows the MPP target value automatically, which is varied by irradiance values.
If the MPP target value is out of the allowable MPPT range ([MPP start voltage – MPP Range lower] ~ [MPP
start voltage + MPP range upper]), the system will return to the “Initializing MPP” state and will recalculate
the MPPT start voltage.
System stop : When the “OFF” button in the GUI is selected, the PV Array side contactor and the Grid side
contactor are turned off and the system stops. If the output power of inverter is kept below value of “MPPT P
stop” parameter during time of “MPPT T stop” parameter, connection to the grid is terminated. In addition, If
PV voltage is below 100V, the inverter stops.
Fault : If a fault occurs during operation, the system stops. The system resets the fault and tries to remove
the fault. In the case that system removes a fault successfully, system restarts all by itself. The system
allows three auto fault resets within 30 minutes. After three attempts, the system will log an error and the
system will not try to restart.
[Vpv >= {Vpv_start}
&& T > {Tstart} ]
Inverter Off
Disconnect
[T > {Tbuildup} + 3.5 sec]
PV_MC
(K10) ON
(2)
Grid_MC
ON
(3)
Fault
Heavy Fault
Fault Reset
Inverter On
[200 <= Vpv <= 630
&& T>5 sec]
MPP
Init.
[Vpv<200 && T>120 sec]
[Vpv>Vmpp_min
&& T > 5sec]
[Out of range]
MPPT
(6)
MPP
Start
[Vpv == MPP Ref.]
[Ppv < {Pstop}
&& T > {Tstop} ]
Operating start