References - ABB ACS880 Firmware Manual

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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
chain and 28 Frequency reference
Debugging the network words
If parameter 50.12 FBA A debug enable
from the fieldbus are displayed by
reference 2.
Scaling of references
The references are scaled as defined by parameters 46.01...46.04; which scaling is
in use depends on the setting of
Fieldbus
The scaled references are shown by parameters
FB A reference 2.
Fieldbus control through a fieldbus adapter 379
22 Speed reference
chain.
50.14 FBA A reference 1
50.04 FBA A ref1 type
46.01 (with speed reference)
20000
46.02 (with frequency reference)
46.03 (with torque reference)
10000
46.04 (with power reference)
0 0
-(46.03) (with torque reference)
-10000
-(46.04) (with power reference)
-(46.01) (with speed reference)
-20000
-(46.02) (with frequency reference)
selection,
is set to Enable, the references received
and
Drive
03.05 FB A reference 1
26 Torque reference
and 50.15 FBA A
50.05 FBA A ref2 type.
and 03.06