ABB ACS2000 AFE 1MVA User Manual page 66

CHAPTER 3 – CONTROL SYSTEM
3.3.6 Pulse encoder interface NTAC (option)
Overview
The pulse encoder is required for constant torque
applications.
Terminals X1
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.
INU
AMC circuit board
DDCS
NTAC
Location
The NTAC interface is DIN rail-mounted inside the
control compartment (3-10:
The indicated mounting position may vary depend-
ing on the number of optional devices present on
the swing frame.
3.3.7 Motor temperature supervision
Motor temperature supervision is accomplished
via optional PT100 input modules. These modules
are suitable for connection of PT100 resistance
thermometers in accordance with IEC60751 in 2, 3
or 4 conductor systems.
1 A+ Channel A
2 A-
3 B+ Channel B
4 B-
5 Z+ Channel Z
6 Z-
7 SH Shield
8 SH
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
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