ABB FENA-01 - References; References in Positioning Mode (ACSM1 Only); References in Speed Control Mode

314 PROFINET IO – Communication profiles
 References
ABB drives can receive control information from multiple sources
including analog and digital inputs, the drive control panel and a
fieldbus adapter module (for example, FENA). To have the drive
controlled through PROFINET, you must select the module as the
source for control information, for example, reference.
References in speed control mode
In the speed control mode, references are 16-bit or 32-bit words
containing a sign bit and a 15-bit or 31-bit integer. A negative
reference (indicating reversed direction of rotation) is formed by
calculating the two’s complement from the corresponding positive
reference.
A 16-bit speed reference (REF or NSOLL_A) in hexadecimal
(0…4000h) corresponds to 0…100% of Maximum Reference (as
defined with a drive parameter).
A 32-bit speed reference (NSOLL_B) in hexadecimal (0…4000
0000h) corresponds to 0…100% of Maximum Reference (as
defined with a drive parameter).
References in positioning mode (ACSM1 only)
In the positioning mode, references are 16-bit or 32-bit words. A
32-bit reference contains a sign bit and a 31-bit integer. A negative
reference (indicating reversed direction of rotation) is formed by
calculating the two’s complement from the corresponding positive
reference.
For a 32-bit position reference (XSOLL_A), the unit and scaling are
defined with drive parameters (for example, POS UNIT, POS2INT
SCALE and FEED CONST).
For a 32-bit velocity reference (VELOCITY_A), the unit and scaling
are defined with drive parameters (for example, POS SPEED UNIT
and POS SPEED2INT).