YASKAWA FSDrive-MV1S - LED Indicators on CCB (Cell Control Board)

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 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 : Lit when IGBT Q4 is operating.
Q3 : Lit when IGBT Q3 is operating.
Q2 : Lit when IGBT Q2 is operating.
Q1 : Lit when IGBT Q1 is operating.
FAULT : Lit when a cell fault occurs.
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.)
Never touch the Power Cell while this LED indicator lights.
Fig 7.2 LED indicators on the CCB
LED Status
* LED indicates z: on, {: off
[Ready] [Run] [Fault]
Q4(Green) :
{z{
Q3(Green) :
{z{
Q2(Green) :
{z{
Q1(Green) :
{z{
FAULT(Red) :
{{z
LINK-ON(Red):
zz -
CHARGE(Red) :
zzz
Q4
Q3
Q2
Q1
FAULT
LINK-ON
CHARGE
CCB board