ABB ACS880 PCP User Manual

68 Standard programposi features
select the format. If you select a 32-bit format, the subsequent data word is also
automatically reserved.
Example 2: Transmitting a 32-bit integer over fieldbus
Parameters 90.05 Load position scaled and 90.65 Pos counter init value are real-type
numbers.
In this example, 123456.78 is to be used as the initial value sent from the PLC. To
send the number as an integer over the fieldbus, multiply the value by 100 and select
it to be transmitted as two data words:
• 12345678 = BC614Eh
• 614Eh = 24910
• BCh = 188
• FBA data out x = 188
• FBA data out (x + 1) = 24910.
The drive will thus receive a 32-bit integer. To restore the original two decimal places,
set parameter 90.38 Pos counter decimals to 2. This will divide the integer by 100
before it is written into 90.65 Pos counter init value. Parameter 90.05 Load position
scaled will also be scaled, so when read by the PLC, it will still appear as an integer
(12345678).
90.38 Pos counter decimals = 2
90.65 Pos counter init value = 123456.78
Example 3: Transmitting a 32-bit floating point number over fieldbus
In this example, 66770.125 is used as the initial value sent from the PLC. To transmit
a 32-bit floating-point value, split it into two 16-bit words.
According to IEEE 754, the value 66770.125 converts to 47826910h including the
sign, exponent and significand.
High word: 4782h = 18306
Low word: 6910h = 26896
For eg. PROFIBUS, these values can be set as
FBA data out x = 18306
FBA data out (x + 1) = 26896.
For ABB Automation using DDCS communication, the two words can be transmitted
as eg. data words 12.1 and 12.2 respectively.
When configuring the data selection parameters, select the 32-bit floating-point
number format for parameters 90.65 Pos counter init value and 90.05 Load position
scaled.

ABB ACS880 PCP Specifications

General

Output current	Up to 5200 A
Input voltage	380-690 V
Power range	5600 kW
Cooling method	Air or liquid
Protection class	IP21, IP54
Communication interfaces	Ethernet, CANopen

Summary

1. Introduction

Safety instructions

Ensures adherence to all safety instructions for the drive during installation, commissioning, and use.

Target audience

Identifies the intended users of this manual, including designers, commissioners, and operators of the drive system.

Terms and abbreviations

2. Quick start-up guide for ACS880 drives

Safety

Highlights the critical safety instruction that all electrical installation and maintenance work must be performed by qualified electricians only.

Before you start

Ensures the drive is mechanically and electrically installed correctly as per guides and that motor rating plate data is available.

3. PCP/ESP control start-up

PCP/ESP control start-up

Details alternative control schemes for starting the drive with the PCP/ESP control program, including high pressure switch and speed reduction.

4. Using the control panel

5. PCP/ESP program features

Overview of PCP/ESP control program

Describes functions specific to PCP/ESP applications, including protection and optimization through automatic speed adjustments.

Pump pressure protection

Explains how the pump pressure protection function safeguards the pump from high pressure conditions by monitoring signals and generating stop commands.

Pump torque protection

Details the pump torque protection function that safeguards the pump from overload or underload conditions by monitoring torque and speed.

Pump underload protection

Describes the function that supervises load conditions to detect underload, protecting the pump from issues like gas, lack of fluid, or broken rods.

Pump temperature protection

Explains the function that protects the pump from overheating by monitoring temperature feedback and taking protective actions.

Shutdown procedure

Details the two methods for stopping the drive: coast stop or backspin control, and their operational logic.

6. Standard programposi features

Local control vs. external control

Explains the two main control locations for the ACS880 drive: external control and local control.

Motor control

Details the motor control methods, including Direct Torque Control (DTC) and Scalar motor control.

Encoder support

Describes the support for encoders and resolvers, including available optional interface modules.

7. Default control connections

PCP/ESP I/O control connections

Details the default control connections for the PCP/ESP control application, including wiring and parameter settings.

Default parameter settings for the PCP/ESP

Lists default parameter values that differ from the factory macro, specific to the PCP/ESP control.

8. Parameters

Terms and abbreviations

Lists and defines terms and abbreviations used throughout the parameter descriptions in the manual.

Summary of parameter groups

Provides an overview of the parameter groups, listing their contents and corresponding page numbers for easy navigation.

10. Fault tracing

Safety

Emphasizes that only qualified electricians are allowed to service the drive and stresses the importance of reading safety instructions.

How to reset faults

Describes the procedure for resetting faults after the cause has been corrected, including selectable sources like control panel, PC tool, digital inputs, or fieldbus.

Warning messages

Provides a list of warning messages, including their code, cause, and recommended actions for troubleshooting.

Fault messages

Lists fault messages with their hexadecimal code, cause, and recommended actions for troubleshooting.

11. Fieldbus control through the embedded fieldbus interface (EFB)

System overview

Describes how the drive can be controlled by external devices over a communication network using the embedded fieldbus interface.

Connecting the fieldbus to the drive

Details the physical connection of the fieldbus to the XD2D terminal on the control unit of the drive.

Setting up the embedded fieldbus interface

Guides the user through configuring the drive for embedded fieldbus communication by setting specific parameters.

Control Word and Status word

Details the contents and function of the Control Word (CW) for controlling the drive and the Status Word (SW) for conveying drive status information.

Modbus holding register addresses

Lists the default Modbus holding register addresses for drive data, providing access to parameters via converted 16-bit data.

12. Fieldbus control through a fieldbus adapter

System overview

Describes how the drive connects to an external control system via a serial communication link using an optional fieldbus adapter.

Setting up the drive for fieldbus control

Provides a step-by-step guide for configuring the drive for fieldbus control, including installing the adapter and setting parameters.

Parameter setting example: FPBA (PROFIBUS DP)

Illustrates the configuration of a basic speed control application using the PROFIdrive communication profile with PPO Type 8 telegram.

13. Control chain diagrams

Speed reference source selection for application

Presents a diagram illustrating how speed references are selected for the application, incorporating various functions like PI control and brake confirmation.

Motor feedback configuration

Details the configuration of motor feedback sources, including encoders and internal estimates, and how they are scaled.

Speed error calculation

Illustrates the process of speed error calculation, including speed window control, error filtering, and correction.

Speed controller

Provides a diagram of the speed controller, showing its components like proportional, integral, and derivative terms, and their interaction with other functions.

14. Appendix: ESP with step-up transformer and sine filter

Current calculation

Explains how to calculate current for ESP with sine filter and step-up transformer, including parameter settings for motor nominal voltage and current.

Primary and secondary voltage calculation

Details the calculation of primary and secondary voltages for step-up transformer systems, providing required data and formulas.

Further information

Product and service inquiries

Instructs users on how to contact local ABB representatives for product inquiries, support, and service contacts.

Document library on the Internet

Directs users to the ABB website where manuals and other product documents can be found in PDF format.