ABB NTAC-0X Pulse Encoder Interface Module
Overview This chapter contains a description of the NTAC-0x/NDIO-0x/NAIO-0x
Installation and Start-up Guide.
Intended Audience The Guide is intended for people who are responsible for installing,
commissioning and servicing the pulse encoder interface (NTAC) or I/O
extension modules (NDIO, NAIO) of ACS 600 frequency converters.
The user is expected to have a basic knowledge of electrical
fundamentals, electrical wiring practices and the ACS 600.
Applicability This Guide is applicable to the following module revisions:
• NTAC-02 revision C or later
(Refer to Appendix C for information on earlier revisions.)
• NDIO-02 revision A or later
(Refer to Appendix D for information on earlier revisions.)
• NAIO-03 revision A or later
(Refer to Appendix E for information on earlier revisions.)
What This Guide
Contains
The installation and start-up of the Pulse Encoder Interface Module,
the Digital I/O Extension Module and the Analogue I/O Extension
Module are introduced in this Guide.
Safety Instructions are placed in the first few pages of this Guide.
Safety Instructions describe the formats for various warnings and
notations used within this Guide. This chapter also states the safety
instructions which apply to the installation and operation of the option
modules.
Chapter 1 – Introduction to This Guide contains a short description
of the Guide and a list of related publications.
Chapter 2 – Overview contains a description of the Pulse Encoder
Interface Module and the I/O Extension Modules, a delivery checklist
and warranty information.
Chapter 3 – Installation contains instructions for module hardware
settings, mounting, cabling and programming.
Appendix A contains Technical Data.
Appendix B – Ambient Conditions lists the requirements for ambient
conditions during transportation, storage and use of the NTAC-0x/
NDIO-0x/NAIO-0x module.
Appendix C – NTAC-01 Information includes information on the
earlier NTAC module type (NTAC-01) for reference.
Chapter 1 – Introduction to This Guide
1-2 NTAC-0x/NDIO-0x/NAIO-0x Installation and Start-up Guide
Appendix D – NDIO-01 Information includes information on the
earlier NDIO module type (NDIO-01) for reference.
Appendix E – NAIO-01/02 Information includes information on the
earlier NAIO module types (NAIO-01 and NAIO-02) for reference.
Terms Used in
This Guide
NAIO Module The NAIO (Analogue I/O Extension Module) is an optional device for
ACS 600 frequency converters. The module offers two current or
voltage inputs and two current outputs.
NAMC Board The NAMC is the Application and Motor Control Board of the ACS 600.
There are different types of NAMC, e.g. NAMC-03 and NAMC-11.
NDCO Board The NDCO (DDCS Communication Option) series includes optional
communication boards for installation on top of the NAMC-11.
NDIO Module The NDIO (Digital I/O Extension Module) is an optional device for
ACS 600 frequency converters. The module offers two digital inputs
and two relay outputs.
NIOC Board The NIOC is the standard I/O interface of the ACS 600. It connects the
drive to the external control circuits.
NTAC Module The NTAC (Pulse Encoder Interface Module) is an optional device for
ACS 600 frequency converters. The module offers an interface for a
digital pulse encoder connection.

Overview This chapter contains a description of the I/O Extension Link, the Pulse
Encoder Interface Module, the I/O Extension Modules, and information
on warranty.
The I/O Extension
Link
All the Pulse Encoder Interface Module (NTAC) and I/O Extension
Modules (NDIO and NAIO) are connected to the frequency converter
via an optical DDCS-protocol communication link. The modules,
together with the NIOC Standard I/O Board, are usually connected in a
ring on Channel CH1 of the NAMC (Application and Motor Control
Board). The NAMC board acts as the master, polling the other stations
cyclically. The modules respond to the master’s enquiries.
Each device on the DDCS link has an individual node number. The
modules are numbered by setting the DIP switches located inside the
module enclosure. (The address of the NIOC board is fixed to 1.)
NTAC-02 Pulse
Encoder Interface
Module
The Pulse Encoder Interface Module (NTAC) offers an interface for a
digital pulse encoder connection. A pulse encoder should be used if
accurate speed or position (angle) feedback from the motor shaft is
required.
Delivery Check The package contains:
• NTAC-02 module
• three pairs of fibre optic cables (120/370/2000 mm)
• two jumper bridges (for encoder voltage selection)
• mounting rail (DIN 50022, 35 × 7.5 mm, length 45 mm)
• This manual, the NTAC-0x/NDIO-0x/NAIO-0x Installation and
Start-up Guide.
Compatibility The NTAC-02 is compatible with the following application programs:
• ACS 600 Standard Application Program version 5.0 or later
• ACS 600 System Application Program version 4.2 or later
• ACS 600 Crane Drive Application Program version 5.0 or later
• ACS 600 Application Program Template (all versions).
Encoder
Recommendation
Leine & Linde 18690010, Hübner POG 10 or equivalent:
• 90° (electrical) phase shift between channels 1 and 2
• Recommended output sinking/sourcing capability: 40 mA.
NDIO-02 Digital I/O
Extension Module
The Digital I/O Extension Module (NDIO) offers two digital inputs
(24 to 250 V d.c., or 110 to 230 V a.c.) and two relay outputs
(2000 VA/250 V a.c. or 8 A/24 V d.c.).
Delivery Check The option package contains:
• NDIO-02 module
• three pairs of fibre optic cables (120/370/2000 mm)
• mounting rail (DIN 50022, 35 × 7.5 mm, length 45 mm)
• This manual, the NTAC-0x/NDIO-0x/NAIO-0x Installation and
Start-up Guide.
Compatibility The NDIO-02 is compatible with the following application programs:
• ACS 600 Standard Application Program version 2.8 or later
• ACS 600 System Application Program version 4.2 or later
• ACS 600 Crane Drive Application Program version 5.0 or later
• ACS 600 Application Program Template (all versions).
NAIO-03 Analogue I/O
Extension Module
The Analogue I/O Extension Module (NAIO) offers two bipolar current
(±0(4) to 20 mA) or voltage (±0(2) to 10 V, or ±0 to 2 V) inputs and two
unipolar current (0(4) to 20 mA) outputs. The signal resolution (12 bits)
is better than that of the standard analogue I/O.
Delivery Check The option package contains:
• NAIO-03 module
• three pairs of fibre optic cables (120/370/2000 mm)
• mounting rail (DIN 50022, 35 × 7.5 mm, length 45 mm)
• This manual, the NTAC-0x/NDIO-0x/NAIO-0x Installation and
Start-up Guide.
Compatibility The NAIO-03 is compatible with the following application programs:
• ACS 600 Standard Application Program version 2.8 or later
• ACS 600 System Application Program version 4.2 or later
• ACS 600 Crane Drive Application Program version 5.0 or later
• ACS 600 Application Program Template (all versions).
Warranty See the Hardware Manual of the drive for information on warranty

ACS 600 Connection
General The modules are connected to the drive (NAMC/NDCO board) using
the fibre optic cables included in the module package. Observe the
connector colour coding: blue connectors should go to blue receivers
(RXD), grey (or black) connectors to grey transmitters (TXD). Multiple
modules on the same channel are connected in a ring.
The fibre optic cables must be handled with care. The maximum long term tensile load is 1 N and the minimum short-term bend radius is
25 mm. The ends of the fibre must not be touched as optical fibres are
sensitive to dirt. Grommets should be used at cable lead-throughs.
Terminals The terminals which the NTAC-02, NDIO-02 and NAIO-03 modules are
connected to are given in the table below.
Figure 3-3 Connecting the modules to the ACS 600. The picture shows
two modules on Channel CH1; the terminals may vary according to the
application program used. Refer to the table above and the relevant
Firmware Manual.
Module Application Program Board Channel Terminals
NTAC-02
Standard, V5.0 or later NDCO (Optional) CH2 V17, V18
Standard, V5.0 or later
with Master/Follower Macro NAMC CH1 V15, V16
System NAMC CH1 V15, V16
Crane, V5.0 or later NAMC CH1 V15, V16
NDIO-02
NAIO-03 (all) NAMC CH1 V15, V16