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LED Indicators on CCB (Cell Control Board)
The LED indicator lamps on the CCB indicate the CCB power supply status, IBGT operation status, and fault
occurrence as shown below.
CHARGE : Lit when the snubber DC voltage is charged (Lights up when the voltage reaches approx-
imately 50 V.)
FLT
: Lit when a cell fault occurs.
LINK-ON: Lit during normal transmission with the controller
RUN
: Lit while the cell is operating.
POWER : Lit while the controller is operating.
Never touch the Power Cell while any LED indicator lamp is lit.
[LED Indicator Lamp Status] ( : Unlit, : Lit)
CHARGE (Red) :
FLT (Red)
LINK-ON (Green) :
RUN (Green)
POWER (Green) :
CCB
Fig 7.2 LED Indicator Lamps on CCB
[Ready]
[Running]
:
:
Protective and Diagnostic Functions
CHARGE
FLT
LINK-ON
RUN
POWER
[Fault]
9
7-
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Troubleshooting
