general
vacon
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1.
GENERAL
Vacon NX frequency converters can be connected to the LonWorks® network using a fieldbus board.
The converter can then be controlled, monitored and programmed from the Host system.
The LonWorks® board shall be installed in slot E on the control board of the frequency converter.
L
ON
W
ORKS
technology has been developed by Echelon Corporation. L
ON
W
ORKS
network is used in
applications like industry and building automation, controlling household electronics, medical
instrumentation and many others. The target of the L
ON
W
ORKS
network is to provide a common
vendor independent communication network for intelligent devices.
In a L
ON
W
ORKS
network, no central control or master-slave architecture is needed. Nodes on a
network communicate with each other using LonTalk® protocol. Interoperable nodes use Standard
Network Variable Types (SNVT) for communicating over the network. The definition of an SNVT
includes units, a range, and an increment. Vacon option board uses only Standard Network Variable
Types for the data types.
All network variables are either input (data is coming from the network to the device) or output (data
is sent to the network by the device) network variables. When network variables on different nodes on
the network have been bound together by an installation tool, passing of data is automatic between
the right nodes. Only the same type of network variables can be bound together, so it is very
important to have compatible interfaces.
WARNING!
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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