7 Control Unit
7.1 Control Unit Components
The NXP control unit gives the flexibility to create advanced features with options and programmability. See selection guide and
application manual for full list of features.
The control unit of the AC drive contains the control board and additional boards (see
) connected to the 5 slot con-
nectors (A to E) of the control board. The control board is connected to the power unit through a D-connector or fiber optic cables
(FR9–FR11).
4
5
6
1
2
3
e3
0b
h7
82
.1
0
Illustration 38: Basic and Option Slots on the Control Board
1
Slot A; OPTA1
2
Slot B; OPTA2
3
Slot C; option boards
4
Slot D; option boards
5
Slot E; option boards
6
Control terminals
The control unit of the delivered AC drive contains the standard control interface. If the order included special options, the AC drive
is delivered according to the order. The next pages contain information on the terminals and general wiring examples. The type
code shows the I/O boards that are installed at the factory. For more information on the option boards, see VACON
®
NX I/O Boards
User manual.
The OPTA1 basic board has 20 control terminals, and the relay board has 6 or 7. The standard connections of the control unit and
the descriptions of signals are shown in
7.3.2 Control Terminals on OPTA1
.
For instructions on how to install the control unit that is not attached to the power unit, see VACON
®
NXP IP00 Drives Installation
Manual.
7.2 Control Voltage (+24 V/EXT +24 V)
It is possible to use the drive with an external power source with these properties: +24 V DC ±10%, minimum 1000 mA. Use it to
externally power up the control board, and the basic and option boards. The analog outputs and inputs at OPTA1 do not work with
only +24 V supplied to the control unit.
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Danfoss A/S © 2022.12
Control Unit
VACON® NXS/NXP Air-cooled
Operating Guide
