ABB ACA 6 Series Hardware Manual page 18

Chapter 1 – Introduction
Control Board Diagram
(R8i, R9i)
Control Board Diagram
(2 x R8i, 2 x R9i)
1-6
This diagram shows the control boards that control an inverter of size
R8i/R9i.
Power plate
Two NGDR
boards
U
control one phase
power plate
This diagram shows the control boards that control an inverter of sizes
2 x R8i and 2 x R9i.
NINT
W
U V
U phase
NDCU
NAMC
NINT
V W
phase phase
NDCU
NAMC
NPBU
NINT
W
U V
V phase
W phase
ACS 600 MultiDrive Hardware Manual