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 46.01...46.04; which scaling is
in use depends on the setting of
page 312).
Fieldbus
The scaled references are shown by parameters
EFB reference
2.
58.26 EFB ref1 type
46.01
(with speed reference)
20000
46.02
(with frequency reference)
46.03
(with torque reference)
10000
46.04
(with power reference)
0
0
-(46.03) (with torque reference)
-10000
-(46.04) (with power reference)
-(46.01) (with speed reference)
-20000
-(46.02) (with frequency reference)
and
58.27 EFB ref2 type
Drive
03.09 EFB reference 1
(see
and
03.10