KACO XP83U-H6 (Canada) - Manual (Page 51)

Page 51
IMPORTANT!
The inverter can’t be started when a fault is present. Use the ‘fault reset’ procedure and
retry the start operation. Refer to the ‘Fault & Warning’ section for a description of the ‘fault
reset’ procedure.
If the GUI gives a Code F16 or 'Inv. Phase Order' failure message, the phase rotation is
reversed. Shut down the system, power off all AC and DC voltage to the inverter, and
reverse the phase A and B connections on the AC field wiring terminals.
CAUTION!
If the fault isn`t resolved after ‘fault reset’ procedure is complete, contact the KACO technical dept. at +1
(415) 931-2046
Operating State
The Inverter has eight operating states. The explanations about each state are below.
Disconnected (default) : Before operation has commenced the inverter is in the disconnected state. In
this state, the inverter is totally isolated from the PV array and the utility grid.
Connecting to the PV array : When the inverter is in the "Disconnect" state, the ‘Inverter On’ button on
the GUI is selected and the PV voltage is kept above 200V for 5 seconds, the system turns on the PV Array
side contactor (PV_MC). In this state, if the PV voltage falls below 100V, the inverter returns to the
Disconnect state.
Connecting to Grid : When the inverter is in the “Connecting to PV Array" state and the PV voltage is kept
above the value of “MPPT V Start” parameter during the time set by “MPPT T start” parameter, the contactor
on the grid side is turned on. The inverter keeps this state for 8 seconds.
Initializing MPP : The inverter calculates the MPPT start voltage which is product of measurement of PV
voltage and the parameter “MPP Factor”. After 5 seconds, the inverter system enters into the "MPP start"
state.
MPP start : In this state, the inverter controls the PV voltage. Reference of the PV voltage (“V
dc
reference”
parameter) the inverter changes from “open circuit” voltage to the value of the “MPPT V start” parameter.
GUI during proper operation