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CIRCUIT OPERATION (cont’d)
Control Board Configuration
The boards in the following table are used in the drive. The figure below shows the control board
configuration.
Boards Used
Board Name Device Main function
ARND-3110(*) CTR Main control circuit
ARND-3126B GSD3+ Gate signal distribution circuit
ARND-8205(*) OLB Optical gate signal circuit (electrical/optical signal
conversion)
ARND-3127(*) VDET Voltage detection circuit
ARND-8120(*) XIO External I/O signal circuit
PC61910P116 DISP Drive operation
PC61910P114A IPAD PC communication/Reset and Interlock functions
PC61910P075(*) IGD IGBT gate driver circuit
PC61910P106A RGM Resistor voltage divider circuit
PC61910P107A PDM Potential transformer circuit
ARND-8126A GDI Ground fault detector circuit
‘*’ This data is job/inverter specific. Check the drawings for the specific inverter for this information.
Control Board Configuration
6Vac
PM×3
GSD3+
CTR
XIO
4.16kV/2.3kV
HCT
E1
PS1
FAN
IGD
CPS
120V
P24
P5
PN15
120Vac
Optical
Link
8
Electrical
Link
OLB
IPAD
DISP
PC
X
12
120Vac
VR,VT
6Vac
PT
120V
PS3
VDET
Thermal
Vdc
x
2
P15
Vac
x
2
P15
RGM
RGM
RGM
RGM
2
PDM
IM
In case of
no control PS feeder
120,240,460V
In case
control PS feeder is
available
GDI
P15
TB-AO