Fieldbus control through a fieldbus adapter 395
References
References are 16-bit words containing a sign bit and a 15-bit integer. A negative
reference (indicating reversed direction of rotation) is formed by calculating the two’s
complement from the corresponding positive reference.
ABB drives can receive control information from multiple sources including analog
and digital inputs, the drive control panel and a fieldbus adapter module. In order to
have the drive controlled through the fieldbus, the module must be defined as the
source for control information such as reference. This is done using the source
selection parameters in groups
.
Debugging the network words
If parameter
, the references received from
the fieldbus are displayed by
Scaling of references
The references are scaled as defined by parameters
…
; which scaling is
in use depends on the setting of
and
The scaled references are shown by parameters
.
(with speed reference)
(with frequency reference)
0
-20000
20000
Drive
Fieldbus
0
10000
-10000
) (with speed reference)
) (with frequency reference)
Summary of Contents for ACQ580
Page 1: ...ABB drives for water Firmware manual ACQ580 pump control program ...
Page 4: ... 2017 ABB Oy All Rights Reserved 3AXD50000035867 Rev C EN EFFECTIVE 2017 06 21 ...
Page 30: ...26 Start up control with I O and ID run ...
Page 40: ...36 Default configuration ...
Page 304: ...300 Parameters ...
Page 340: ...336 Additional parameter data ...