434 Fieldbus control through the embedded fieldbus interface (EFB)
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
58.26
EFB ref1 type
and
58.27
EFB ref2 type
(see
page
308
).
The scaled references are shown by parameters
03.09
EFB reference 1
and
03.10
EFB reference 2
.
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
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
308
).
46.01
(with speed reference)
46.02
(with frequency reference)
0
-20000
20000
Drive
Fieldbus
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)
ACS380 FW.book Page 434 Friday, May 4, 2018 4:18 PM
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