622 Fieldbus control through the embedded fieldbus interface (EFB)
Actual values
The ABB Drives profile supports the use of two fieldbus actual values, ACT1 and
ACT2. The actual values are 16-bit words each containing a sign bit and a 15-bit
integer. A negative value is formed by calculating the two’s complement from the
corresponding positive value.
The actual values are scaled as defined by parameters 46.01…46.04; which scaling
is in use depends on the setting of parameters 58.28 EFB act1 type and 58.29 EFB
act2 type (see page 390).
46.01 (with speed reference)
46.02 (with frequency reference)
0
-20000
20000
DriveFieldbus
0
10000
-10000
46.03 (with torque reference)
46.04 (with power reference)
-(46.01) (with speed reference)
-(46.02) (with frequency reference)
-(46.03) (with torque reference)
-(46.04) (with power reference)
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