KACO blueplanet 750 - 1000 kVA - Manual (Page 65)

KACO blueplanet 1000/875/750 TL3 M1 IS OD DEX0 Page 65
Faults and Warnings
Code Message Warning Description Possible problem and Solution(s)
7 Inv. Over Current
(PEBB 1) Inverter Output Current over
one-third of the parameter
[Inverter OverCurrent Level]
Possible problem
• Short circuit in the IGBT
• Short circuit in the Grid
Solution(s)
• Check the grid connection
• Check the inverter connection
8 Inv. Over Current
(PEBB 2) Inverter Output Current over
one-third of the parameter
[Inverter OverCurrent Level]
9 Inv. Over Current
(PEBB 3) Inverter Output Current over
one-third of the parameter
[Inverter OverCurrent Level]
15 MC21 (Inv. MC of
PEBB 1) Failure Inverter side contactor
(MC21 of PEBB 1) failure Possible problem
• MC21 contactor is open
• Auxiliary switch is inoperable
Solution(s)
• Check the wiring connection
• Change the MC21
16 Inv. Phase Order Phase order failure on the
inverter side Possible problem
• Phase order failure on the inverter
• Wrong phase rotation
Solution(s)
• Check the wiring connection
• Reverse two phases
18 Inductor or TR Over
Temp Inductor or Transformer temper-
ature over 150°C Possible problem
• Cabinet fan failure
Solution(s)
• Cleaning the filters
• Change the cabinet Fan
20 PEBB(1) IGBT Fault PEBB IGBT U failure Possible problem
• Short circuit in the IGBT
Solution(s)
• Visual inspection
• Change the PEBB
21 PEBB(2) IGBT Fault PEBB IGBT V failure
22 PEBB(3) IGBT Fault PEBB IGBT W failure
24 PEBB Over Temp.
Analog The temperature of the heat-
sink over the parameter [Heat-
sink OT Level] (Analog) Possible problem
• PEBB fan failure
Solution(s)
• Clean the filters
• Inspect and if necessary clean the
heat-sink fins
• Change the PEBB Fan
Table 8: Fault