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CONTROL UNIT
6.1
CONTROL UNIT COMPONENTS
The control unit of the AC drive contains the control board and additional boards (see Fig. 20
Basic and option board connections on the control board) connected to the 5 slot connectors (A
to E) of the control board. The control board is connected to the power unit through a D-
connector or fibre optic cables (FR9).
A
B
C
D
E
Fig. 20: Basic and option board connections on the control board
When you receive the AC drive, the control unit contains the standard control interface. If you
included special options in your order, the AC drive is as in your order. On the next pages,
you can find 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 option board manual.
It is possible to use the drive with an external power source with these properties: +24 VDC
±10%, minimum 1000 mA. Connect the external power source to one of the 2 bidirectional
terminals (#6 or #12), see Chapter 6.3 Installation of option boards. This voltage is sufficient to
keep the control unit on and for you to set the parameters. The measurements of the main
circuit (for example, the DC link voltage, and the unit temperature) are not available when
the drive is not connected to mains (except with FR9 and larger).
For instructions on how to install the control unit that is not attached to the power unit, see
NXP IP00 Drives Installation Manual.
VACON · 70
CONTROL UNIT
6
TEL. +358 (0)201 2121 · FAX +358 (0)201 212 205
