Fieldbus control with embedded fieldbus
248
The fieldbus control interface
The communication between a fieldbus system and the drive consists of 16-bit input
and output data words (with ABB Drives profile) and 32-bit input and output words
(with DCU profile).
The Control Word and the Status Word
The Control Word (CW) is the principal means of controlling the drive from a fieldbus
system. The Control Word is sent by the fieldbus controller to the drive. The drive
switches between its states according to the bit-coded instructions of the Control
Word.
The Status Word (SW) is a word containing status information, sent by the drive to
the fieldbus controller.
References
References (REF) are 16-bit signed integers. A negative reference (e.g. reverse
direction of rotation) is formed by calculating the two’s complement from the
corresponding positive reference value. The contents of each reference word can be
used as speed, frequency, torque or process reference.
Actual Values
Actual Values (ACT) are 16-bit words containing selected values of the drive.
Summary of Contents for ACS350 Series
Page 1: ...ACS350 User s Manual ACS350 Drives 0 37 22 kW 0 5 30 HP ...
Page 4: ......
Page 8: ...Safety 8 ...
Page 18: ...Table of contents 18 ...
Page 24: ...Hardware description 24 ...
Page 44: ...Installation checklist 44 ...
Page 56: ...Start up control with I O and ID Run 56 ...
Page 140: ...Program features 140 ...
Page 242: ...Actual signals and parameters 242 ...
Page 266: ...Fieldbus control with embedded fieldbus 266 ...
Page 284: ...Fault tracing 284 ...
Page 288: ...Maintenance and hardware diagnostics 288 ...
Page 309: ...Dimensions 309 Frame size R2 IP20 NEMA 1 3AFE68586658 A Frame size R2 IP20 NEMA 1 VAR EMC ...
Page 311: ...Dimensions 311 Frame size R3 IP20 NEMA 1 3AFE68579872 B Frame size R3 IP20 NEMA 1 VAR EMC ...
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