Grundfos CUE Series - Page 28

Appendix
28
2. Block diagrams
2.1 Block diagram, enclosure B1
Fig. 1 Block diagram, enclosure B1
TM04 2130 2008
x3
P404/420 Block-Schematic, B1 - Power/SMPS
DC/AC
UDC+,BR+ BR-
Temp.
conv.
uC+ EEP
7 xGD
RL1
GD
Supply
A
BR GD
BR FB
INV GD
AC/DC
BR
UDC-
(Load sharing)
RECT+ / RECT-
P_BRF
RL2
RFI_RL1
RFI_RL2 Inrush SAFE_FB Tmp_VGDS VCC
FAN1
FAN2
CAN
A
A
Imax2 comp.
MAINS
RL2 RL1
RFI (variations)
Tmp_VGDS
P400 Block schematic ver. 1.00j updated 2007.09.06
L1 L2 L3
Inrush
RFI_RL2
RFI_RL1
FFB1
FFB2
Ext. fans Int. fans
Confidential - property of Danfoss
”Internal supply bus”
”Internal Communication”
Auxillary supplies
used in power
LCP
Opt. A Opt. B
Opt. C0+C1
Opt. D
Control Card
AOC
LCP con.
Std. bus
Isol. RS485 RS485 USB D-I/O A-I/O
Safe24V
MOC
Level
Shift
VCX (GX) 5V
VCC (GND) 5V
VDD (GND) 24V
Other 1 Other 2
SMPS
Motor
U
V
W
UINV_P
UINV_N
VDD (GND) 24V
x 3
o
C
Motor
(Load sharing)
"Internal Communication"
"Internal supply bus"