3-3
Product Overview
AC30V series Variable Speed Drive
Functional Overview
L1
L2
L3
PE
EMC
Filter
MOVs
Input
rectifier
LINK – customer accessible
Filter
Earth
+
DB
X6
Inverter
stage
M1/U
M2/V
M3/W
I
u
I
W
DC+
DB+
DC-
PE
DC+
DC-
SMPS
DC+
DC-
Main cooling
Fan(s) (24V)
PWM
ISOLATION
DB control
stack
temperature
POWER
CONTROL
Switched fan supply
DB
EEPROM
Precharge
Control
Control Module
LINK – customer accessible
serviceable
&
testable
Block Diagram for Frames D, E, F