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vacon • 2 General information
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1. GENERAL INFORMATION
VACON
®
NX range embodies a wide selection of expander and adapter boards with which the
available I/O of VACON
®
NX AC drive can be increased and its versatility improved.
The input and output configuration (I/O) of VACON
®
NX is designed with modularity in mind. The
total I/O is comprised of option boards, each having its own input and output configuration. The
boards contain not only normal analogue and digital inputs and outputs, but also fieldbuses and
additional application-specific hardware.
The basic, expander and adapter boards are placed in the board slots on the control board of the AC
drive. The I/O boards are usually interchangeable between different VACON
®
types, i.e. NXS and
NXP. However, the control boards of these types differ from each other to some extent which means
that the use of some I/O boards in different VACON
®
AC drive types may be restricted.
1.1 Board slots on the control board of VACON
®
NXS and NXP
Figure 1. Board slots on control board of the VACON
®
NXS and NXP
The control board is situated inside the control unit of the VACON
®
NX AC drive. There are five board
slots (labelled A to E) on the control board of NXS and NXP (See NXS/P User Manual): The
connectability of different option boards to different slots depends greatly on the type of the board.
For more information on this, see Chapter 1.2. See also the descriptions of the options boards on
pages 18 to 79.
Usually, when the AC drive is delivered from the factory, the control unit includes at least the
standard compilation of two basic boards (I/O board and relay board) which are normally installed
in slots A and B. The I/O boards mounted at the factory are indicated in the type code of the AC drive.
The three expander slots C, D and E are available for different option boards i.e. I/O expander
boards, fieldbus boards and adapter boards.
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