Led Indicators On Ccb (Cell Control Board) - YASKAWA FSDrive-MV1S Instructions Manual

LED Indicators on CCB (Cell Control Board)

The following describes the LED indicators on CCB to display operations and faults. Since the FSDrive-
MV1S is a medium voltage device, do not confirm the LED indicators while the boards in the medium-voltage
section are under current conduction.
(To remove the cover of the cell front face, be sure to turn off the medium-voltage power supply.)
The LED indicators on the CCB (cell control board) indicate the power supply status of the CCB, IGBT oper-
ation status or faults.
Q4
Q3
Q2
Q1
FAULT
LINK-ON: Lit when the control power supply is normal.
CHARGE : Lit when DC bus bar voltage is supplied. (Lit at 50 V or more.)
LED Status
Q4(Green)
Q3(Green)
Q2(Green)
Q1(Green)
FAULT(Red)
LINK-ON(Red):
CHARGE(Red) :
* LED indicates
-8
7
: Lit when IGBT Q4 is operating.
: Lit when IGBT Q3 is operating.
: Lit when IGBT Q2 is operating.
: Lit when IGBT Q1 is operating.
: Lit when a cell fault occurs.
Never touch the Power Cell while this LED indicator lights.
Q4
Q3
Q2
CCB board
Q1
FAULT
LINK-ON
Fig 7.2 LED indicators on the CCB
[Ready]
:
:
:
:
:
: on, : off
CHARGE
[Run] [Fault]
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