ABB ACS550-01 User Manual page 197

ACS550 User's Manual
Actual Value
As described earlier in "Control Interface", Actual Values are words containing drive
values.
Actual Value Scaling
The scaling of the integers sent to the fieldbus as Actual Values depends on the
resolution of the selected drive parameter. Except as noted for Data Words 5 and 6
below, scale the feedback integer using the resolution listed for the parameter in the
"Complete Parameter List for ACS550" section. For example:
Feedback Integer
1
10
Data words 5 and 6 are scaled as follows:
Data Word
5
6
Actual Value Mapping
See the user's manual supplied with the FBA module.
Parameter Resolution
0.1 mA
0.1%
Contents
-20000 ... +20000 = -(par. 1105) ... +(par. 1105)
ACTUAL SPEED
-10000 ... +10000 = -100% ... +100%
TORQUE
Scaled Value
1 * 0.1 mA = 0.1 mA
10 * 0.1% = 1%
ABB Drives Profile
Scaling
197
Fieldbus Adapter