
368 Fieldbus control through the embedded fieldbus interface (EFB)
The references are scaled as defined by parameters
…
; which scaling is
in use depends on the setting of
(see
The scaled references are shown by parameters
and
Actual values
Actual values for the ABB Drives profile and DCU Profile
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
…
; which scaling
is in use depends on the setting of parameters
(see page
).
(with speed reference)
(with frequency reference)
0
-20000
20000
Drive
Fieldbus
0
10000
-10000
(with torque reference)
(with power reference)
-(
) (with speed reference)
-(
) (with frequency reference)
-(
) (with torque reference)
-(
) (with power reference)
ACS180 FW.book Page 368 Tuesday, March 9, 2021 2:25 PM