Caution, Installation and start-up – KACO blueplanet 1502xi User Manual
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blueplanet Operating and Installation Instructions 1502x - 2502x
Installation and Start-Up
Positive Grounded System
NOTE
In this confi guration the Positive of the PV generator is 
grounded through the GFDI fuse. 
DC+
DC+
PV-
2
DC-
PV-
3
DC-
PV+
GFDI
PV-
PV-
1
PV+
3
GFDI
PV+
2
PV+
1
Negative
Positive
Figure 14: DC connection 02x series - Positive
Grounding System
NOTE
A screwdriver (slotted, 3.5 mm) is to be used for the terminals 
in the inverter. Put the screwdriver into the intended cut-out. 
Press the screwdriver upwards a bit. Put the cable into the 
spring terminal. Put the screwdriver back into the original 
position. Remove the screwdriver. The spring terminal is 
closed and the cable is held in place. Lightly pull on the 
wire to be sure it is secure.
!
CAUTION
Be sure the inverter is confi gured for the proper DC 
grounding confi guration of the system.
!
CAUTION
The voltage of the solar generator must be 
measured before connecting the DC leads to the 
inverter terminals. The DC voltage must not exceed 
the max. generator voltage because this would 
destroy the unit.
Clamp the enclosed cable bridge in the upper GFDI 
terminal and the DC+(Figure 13) or DC-connection 
(Figure 14). Consult the module manufacturer for infor-
mation on which generator pole should be earthed.
Negative Grounded System (Factory Default)
NOTE
In this confi guration the Negative of the PV generator is 
grounded through the GFDI fuse.
DC+
DC+
PV-
2
DC-
PV-
3
DC-
PV+
GFDI
PV-
PV-
1
PV+
3
GFDI
PV+
2
PV+
1
Negative
Positive
Figure 13: DC connection 02x series - Negative
Grounding System