ABB ACS2000 AFE 2MVA User Manual page 67

67 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV. H
Location
—
References
The fieldbus adapter is DIN rail-mounted inside the
—
3-10 Location of fieldbus
control compartment
and pulse encoder
The indicated mounting position may vary depend-
interface
ing on the number of optional devices present on
the swing frame.
3.3.6 Pulse encoder interface NTAC (option)
Overview
The pulse encoder is required for constant torque
applications.
Communication with AMC circuit board
The NTAC module communicates with the AMC cir-
cuit board of the INU via a fast optical link using
the standard DDCS protocol. The optical fibers are
connected to channel 1 of the AMC circuit board.
Location
The NTAC interface is DIN rail-mounted inside the
control compartment
The indicated mounting position may vary depend-
ing on the number of optional devices present on
the swing frame.
1
2
—
3-10
(3-10: 1).
Terminals X1
1 A+ Channel A
2 A-
3 B+ Channel B
4 B-
5 Z+ Channel Z
6 Z-
7 SH Shield
8 SH
(3-10: 2).
Terminals X2
1 -V 0 V
2 -V 24 V
3 +V
4 24 / 25
5 15
6 24
7 0 V
8 +24 V