Fieldbus control through the embedded fieldbus interface (EFB) 417
References
References for the ABB Drives profile and DCU Profile
The ABB Drives profile supports the use of two references, EFB reference 1 and EFB
reference 2. The references are 16-bit words each containing a sign bit and a 15-bit
integer. A negative reference is formed by calculating the two’s complement from the
corresponding positive reference.
The references are scaled as defined by parameters
; which scaling is
in use depends on the setting of
and
(see
page
).
The scaled references are shown by parameters
and
.
(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)
ACS580 FW.book Page 417 Wednesday, September 21, 2016 9:48 PM