References; Debugging The Network Words; Scaling Of References - ABB ACS880 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 22 Speed reference
reference chain.

Debugging the network words

If parameter 50.12 FBA A debug mode
fieldbus are displayed by

Scaling of references

Note: The scalings described below are for the ABB Drives communication profile.
Fieldbus-specific communication profiles may use different scalings. For more
information, see the manual of the fieldbus adapter
The references are scaled as defined by parameters 46.01...46.07; which scaling is in
use depends on the setting of
Fieldbus
Fieldbus control through a fieldbus adapter 613
selection, 26 Torque reference chain
is set to Fast, the references received from the
50.14 FBA A reference 1
50.4 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 (with torque or power reference)
0 ±
(46.06) (with speed reference)
±
(46.07) (with frequency reference)
-(46.03) (with torque reference)
-10000
-(46.04) (with power reference)
-(46.01) (with speed reference)
-20000
-(46.02) (with frequency reference)
and
and 50.15 FBA A reference
and 50.5 FBA A ref2
Drive
28 Frequency
2.
type.