Danfoss vacon nx optcj User guide

vacon nx

ac drives

optcj

bacnet option board

user manual

INDEX

Document code: DPD00901A

Date edited: 19.01.2012

1. General info ........................................................................................................................ 3

2. BACnet Option Board Technical data ................................................................................. 4

2.1 System Software versions ........................................................................................................ 5

3. BACnet FIELDBUS BOARD LAYOUT AND CONNECTIONS ................................................... 6

4. Grounding cable shield ...................................................................................................... 7

4.1 Grounding by clamping the cable to the converter frame (recommended)............................. 7

4.2 Grounding only one point on the net ........................................................................................ 8

4.3 Bus terminal resistors ............................................................................................................. 9

4.4 Bus Biasing ............................................................................................................................. 10

5. LED indications ................................................................................................................ 11

6. INSTALLATION OF VACON NX BACnet BOARD ................................................................. 12

7. COMMISSIONING .............................................................................................................. 14

7.1 Fieldbus board parameters .................................................................................................... 14

7.2 Expander board menu (M7) .................................................................................................... 14

7.3 BACnet parameters ................................................................................................................ 14

7.3.1 MS/TP MAC address (P7.x.1.1) ....................................................................................... 15

7.3.2 Baud rate (P7.x.1.2) ........................................................................................................ 15

7.3.3 Instance number (P7.x.1.3)............................................................................................. 15

7.3.4 Communication status (V7.x.2.1) .................................................................................... 16

7.3.5 Baud Rate (V7.x.2.2) ........................................................................................................ 16

7.3.6 Fault (V7.x.2.3) ............................................................................................................... 16

7.3.7 Index Nr. (V7.x.2.4) ......................................................................................................... 16

7.4 ANNEX - PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (NORMATIVE) ...... 17

7.5 Object Map .............................................................................................................................. 19

7.5.1 Binary Value Object ........................................................................................................ 20

7.5.2 Analog Value Object ........................................................................................................ 21

8. FAULT TRACKING ............................................................................................................. 23

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general vacon • 3

1

WARNING!

1. GENERAL INFO

Instead of sending and receiving information to and from frequency converters through I/O, you can
connect them to a fieldbus.

Vacon NX frequency converters can be connected to the RS-485 bus using a fieldbus board. The
converter can then be controlled, monitored and programmed from the host system.

BACnet is also known by names Direct Digital Control Systems and Building Management Systems.
BACnet technology is used mostly in building automation, lightning control, air conditioning and in
heating automation. The protocol is an upper level net protocol suitable for large building
automation projects.

BACnet stands for
protocol communication standard conceived by a consortium of building management, system users
and manufacturers.

If you purchase your BACnet option board separately, please note that it shall be installed in
on the control board of the frequency converter.

Building Automation and Control Network. BACnet is a true non-propriatery open

slot E

Internal components and circuit boards are at high potential when the frequency
converter is connected to the power source. This voltage is extremely dangerous
and may cause death or severe injury if you come into contact with it.

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