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Protective and Diagnostic Functions
7-
7
LED indicators on the controller and CCB (cell control board) (For reference)
The following describes the LED indicators on the controller in the Control Panel and the CCB in the Power
Cell Panel, which to display operation status and faults for reference. Since the FSDrive-MV1S is a medium-
voltage device, do not check the LED indicators while power is being supplyed.
LED indicators on the controller
The controller has two types of LED indicators: An LED indicator that displays the controller status, and an
LED indicator that displays the cell status detected by the controller.
Fig 7.1 LED on Controller
Controller Status LED
POWER (Green)
: Lit when control power is on.
RUN (Green)
: Lit when controller is operating.
ERROR (Red)
: Lit when a controller fault occurs.
ALM (Red)
: Lit when an alarm occurs in controller.
BAT ALM (Red)
: Lit when battery voltage has dropped.
Cell Status LED
READY (Green)
: Lit when interface circuit of the cell is operating.
RUN (Green)
: Lit when interface circuit of the cell is normal.
ERROR (Red)
: Lit when a fault in the interface circuit of the cell occurs.
BB (Red)
: Lit during baseblock.
PH_A RANK0 to 8 (Red) : Lit when a U-phase rank 0 to 8 cell fault occurs.
PH_A RANK0 to 8 (Red) : Lit when a V-phase rank 0 to 8 cell fault occurs.
PH_A RANK0 to 8 (Red) : Lit when a W-phase rank 0 to 8 cell fault occurs.
POWER
RUN
ERROR
ALM
BAT_ALM
READY
RUN
ERROR
B.B.
PH_A
PH_B
PH_C
RANK1 to
to RANK8
Controller
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