Service manual

9 Block Diagrams
9.1.1 H6 Frame Size
x 3
DC /
AC
o
C
Temp
.
conv.
uC+
EEP
7
xGD
RL 1
GD
Supply
A
BR
GD
BR
FB
INV
GD
AC
/
DC
x3
BR
P_BRF
RL 2
RFI _ RL 1
Inrush
SAFE
_
FB
Tmp
_
VGDS
VCC
FAN
1
CAN
A
A
Imax2
comp
.
MAINS
RL 2 RL 1
RFI
(variations)
Tmp
_
VGDS
L1
L2
L3
Inrush
RFI
_
RL 2
RFI
_
RL 1
FFB 1
Int.
fans
”Internal supply bus”
”Internal Communication”
Level
Shift
VCX (GX) 5V
VCC (GND) 5V
VDD (GND) 24V
SMPS
Motor
U
V
W
UINV_P
UINV_N
VGD +/- 15
/
UDC -/-5
VGD +/- 15/UDC -/-5
RFI
_
RL 2
Control Card
ACP
Isol. RS 485
D-I /O
A-I/O
MCP
LCP
Display
control
panel
Brake not connected to terminal on FC
101
130BC339.10
Illustration 9.1
Block Diagrams
VLT
®
HVAC Basic Drive Service Manual
96 MG90X202 - VLT
®
is a registered Danfoss trademark
99