WEG CFW700 - Block Diagram for the CFW700

CFW700 | 5
General Instructions
English
Analog
inputs
AI1 and AI2
FLASH
memory
module
(Slot 5)
Digital inputs
DI1 to DI8
Control power supply and interfaces
between power and control
RS-485
PC
POWER
CONTROL
Three-phase
rectifier
C3 RFI filter (*)
(available in
CFW700...C3...
inverters)
Motor
U/T1
V/T2
W/T3
DC+ DC-BR
Inverter
with
IGBT
transistors
Mains power
supply
R/L1/L
S/L2/N
T/L3

= DC bus connection
= Braking resistor
connection

Pre-
charge
WPS software
WLP software
DC link chokes
DC link capacitor bank
Braking IGBT (available in
CFW700...DB... inverters)
RFI filter
Keypad

CC700
Control
board
with a
32 bits
"RISC"
CPU
Analog
outputs
AO1 and AO2
Digital output
DO1 (RL1)
Digital outputs
DO2 to DO5
Keypad
 (remote)
Feedback:
- voltage
- current
PE
PE
COMM 1
(Slot 3 - Green)
Accessories
= Keypad (HMI)
(*) The capacitor to the ground of the C3 RFI filter (it is possible to meet the
requirements of category C2 with this filter on mechanics A models) must be
disconnected for IT networks and grounded delta power supplies. Please
refer to item 3.2.3.1 Input Connections on page 15.
Figure 2.1: Block diagram for the CFW700