ABB ACS560 User Manual

444 Fieldbus control through the embedded fieldbus interface (EFB)
 Control word and Status word
The Control Word (CW) is a 16-bit or 32-bit packed boolean word. It is the principal
means of controlling the drive from a fieldbus system. The CW is sent by the fieldbus
controller to the drive. With drive parameters, the user selects the EFB CW as the
source of drive control commands (such as start/stop, emergency stop, selection
between external control locations 1/2, or fault reset). The drive switches between its
states according to the bit-coded instructions of the CW.
The fieldbus CW is either written to the drive as it is or the data is converted. See
section About the control profiles (page 446).
The fieldbus Status Word (SW) is a 16-bit or 32-bit packed boolean word. It contains
status information from the drive to the fieldbus controller. The drive SW is either
written to the fieldbus SW as it is or the data is converted. See section About the
control profiles (page 446).
 References
EFB references 1 and 2 are 16-bit or 32-bit signed integers. The contents of each
reference word can be used as the source of virtually any signal, such as the speed,
frequency, torque or process reference. In embedded fieldbus communication,
references 1 and 2 are displayed by 03.09 EFB reference 1 and 03.10 EFB reference
2 respectively. Whether the references are scaled or not depends on the settings of
58.26 EFB ref1 type and 58.27 EFB ref2 type. See section About the control profiles
(page 446).
 Actual values
Fieldbus actual signals (ACT1 and ACT2) are 16-bit or 32-bit signed integers. They
convey selected drive parameter values from the drive to the master. Whether the
actual values are scaled or not depends on the settings of 58.28 EFB act1 type and
58.29 EFB act2 type. See section About the control profiles (page 446).
 Data input/outputs
Data input/outputs are 16-bit or 32-bit words containing selected drive parameter
values. Parameters 58.101 Data I/O 1 … 58.114 Data I/O 14 define the addresses
from which the master either reads data (input) or to which it writes data (output).
 Register addressing
The address field of Modbus requests for accessing holding registers is 16 bits. This
allows the Modbus protocol to support addressing of 65536 holding registers.
Historically, Modbus master devices used 5-digit decimal addresses from 40001 to
49999 to represent holding register addresses. The 5-digit decimal addressing limited
to 9999 the number of holding registers that could be addressed.

ABB ACS560 Specifications

General

Frequency	50/60 Hz
Control Method	Scalar control
Protection Features	Overcurrent, overvoltage, undervoltage, short circuit
Communication Interfaces	Modbus RTU, Profibus DP, CANopen, Ethernet/IP
Enclosure Rating	IP21
Ambient Temperature	-10 to +50 °C
Input Voltage	380 to 480 V AC
Cooling Method	Air cooling (natural convection or forced ventilation)

Summary

Introduction to the Manual

Safety instructions

Outlines safety precautions and references to the hardware manual for detailed instructions.

Start-up, Control with I/O and ID run

How to start up the drive

Details the process of starting up the drive, including safety and general information for basic control panel use.

How to control the drive through the I/O interface

Explains how to operate the drive using digital and analog inputs for start/stop, direction, and speed control.

Identification (ID) run

Describes the drive's process of identifying motor characteristics for optimal motor control.

ID run procedure

Provides a step-by-step guide on how to perform the ID run manually, including pre-checks.

Program features

Drive configuration and programming

Covers the main control functions including speed, torque, frequency control, and drive logic configuration.

Speed controller autotune

Details how the drive's speed controller can be automatically adjusted using the autotune function.

Process PID control

Explains the use of built-in process PID controllers for controlling variables like pressure or flow.

Mechanical brake control

Describes the logic and states involved in controlling a mechanical brake for holding the motor at zero speed.

Control macros

ABB standard macro

Details the default macro features, including 2-wire I/O configuration and scalar control by default.

ABB standard macro (vector)

Describes the vector control variant of the ABB standard macro, similar to the standard macro but using vector control.

PID macro

Describes the PID macro suitable for applications where the drive is always controlled by PID with reference from analog input AI1.

Torque control macro

Covers the torque control macro for applications requiring torque control, typically for tension applications.

Parameters

Parameter listing

Presents a detailed list of parameters, including their numbers, names, descriptions, and default/FbEq16 values.

Fault tracing

Warning messages

Fieldbus control through the embedded fieldbus interface (EFB)

Setting up the embedded fieldbus interface

Guides on configuring parameters for automatic setup and manual configuration of the embedded fieldbus interface.

Basics of the embedded fieldbus interface

Control Word

Status Word

Fieldbus control through a fieldbus adapter

Basics of the fieldbus control interface

Control word and Status word

Control chain diagrams

Speed reference ramping and shaping

Speed error calculation

Speed controller

Presents a block diagram of the speed controller, showing proportional, integral, and derivative actions.

Reference selection for torque controller

Torque limitation

Process PID setpoint and feedback source selection

Process PID controller

Illustrates the PID controller block diagram, including setpoint, feedback, and output scaling.

External PID controller

Shows the control chain diagram for an external PID controller, including setpoint and feedback source selection.

PID trim auto connection

Parameterization with drive composer

Drive composer

How to connect the drive composer

Details the requirements and connection steps for using Drive composer with the drive.

Parameterization with automation builder drive manager

Automation builder drive manager