3-5
Product Overview
AC30V series Variable Speed Drive
L1
L2
L3
EMC
Filter
MOVs
Input
rectifier
DBR
Inverter
stage
M1/U
M2/V
M3/W
I
u
I
W
DC+
DC-
PWM
fan TX
supply
pre-charge
control
I
V
3 x current sensor interface +/-
15V o
/l or
+/- 24V c/l
EEPROM
CM Interface PCB
PE
PE
7 x gate drive 7 x Vce sense 4 way cable as
sy
L1 L2 L3 sense
precharge
relay control
fan supply in switched supp
ly out
heatsink thermistor
SELV
fan control
SMPS
accessible
disconnect
VDC supply &
VDC se
nse
ISOLATION
Power Control
Block Diagram for Frames K