Actual Value Mapping - ABB ACS550 User Manual

ACS550 User's Manual
Actual Value scaling
For Actual Values, scale the feedback integer using the parameter's resolution. (See
section
Feedback
integer
1
10
Where parameters are in percent, the
what parameter corresponds to 100%. In such cases, to convert from percent to
engineering units, multiply by the value of the parameter that defines 100% and
divide by 100%. For example:
Feedback
integer
10
100
1
Assuming, for the sake of this example, that the Actual Value uses parameter 9908
as the 100% reference and that 9908 = 1500 rpm.
2
Assuming, for the sake of this example, that the Actual Value uses parameter 9907
as the 100% reference and that 9907 = 500 Hz.

Actual Value mapping

See the user's manual supplied with the FBA module.
Complete parameter list
Parameter resolution
0.1 mA
0.1%
Value of the
Parameter
parameter that
resolution
defines 100%
0.1% 1500 rpm
0.1% 500 Hz
on page 85 for parameter resolutions.) For example:
(Feedback integer) · (Parameter resolution) =
1 · 0.1 mA = 0.1 mA
10 · 0.1% = 1%
Complete parameter list
(Feedback integer) · (Parameter resolution) ·
(Value of 100% ref.) / 100% =
1
10 · 0.1% · 1500 RPM / 100% = 15 rpm
2
100 · 0.1% · 500 Hz / 100% = 50 Hz
Scaled Value
section specifies
Scaled Value
MOT NOM SPEED
MOT NOM FREQ
Fieldbus adapter
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