ABB ACH 400, User Manual

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Chapter 1 – Introduction
1-2 ACS/ACH 400 Direct N2 Bus Interface
Appendix A – Point List lists all the N2 points
from the ACS/ACH 400 drive with the units and
scaling.
Appendix B – DDL File for NCU lists the Data
Definition Language file for the ACS/ACH 400
drive that can be used with the Network
Controller Unit.
Intended Audience
The audience for this manual has:
• Knowledge of standard electrical wiring
practices, electronic components, and
electrical schematic symbols.
• Minimal knowledge of ABB product
names and terminology.
• Previous experience in installing,
operating, and programming the
ACS 400 or ACH 400 drives.
The audience for this manual will install, start-
up, and diagnose the drives for the N2 Bus
installation. The audience will also program and
setup the ACS/ACH 400 drives for the
communication network.
Conventions Used
In This Manual
Listed below are terms and language
conventions used in this manual. These terms
and conventions are defined here to help you
understand their meanings and applications
throughout this manual.
Analog Inputs
Analog Input points are real number values
which are inputs to the Metasys. In the ACS/
ACH 400 drive, the analog input values include
the actual values, and the fault queue entries.
Analog Outputs
Analog Output points are real number values
which are outputs from the Metasys. In the
ACS/ACH 400 drive, the analog output values
include the set point values.
Binary Inputs
Binary Input points are boolean values which
are inputs to the Metasys. In the ACS/ACH 400
drive, the binary inputs include the drive status
information.