User Manual of A90 Series Inverter
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3.2
Wiring of Main Circuit Terminal
3.2.1
Composition of main circuit terminal
The main circuit terminal of the A90 series inverter consists of the following parts:
Three-phase AC power input terminals: R, S, T
Earth terminal:
DC bus terminals:
、
Terminals of dynamic braking resistor: PB,
Motor terminals: U, V, W
The layout of main circuit terminals is shown in Fig, 3-2.
W
V
U
T
S
R
+ _
PB
a)
Schematic Diagram of Small- and Medium-power Main Circuit Terminals
Some power values vary slightly.
W
V
U
R S T
+
-
b)
Schematic Diagram of High-power Main Circuit Terminals (with slight variations in
some power values)
Fig. 3-2 Schematic Diagram of Main Circuit Terminal Layout
