ModbusTCP for ACU - VEC1047R0

ACTIVE CUBE
Modbus/TCP
Communication module CM-Modbus/TCP
Frequency inverter 230 V / 400 V
CONTENTS
1
GENERAL INFORMATION ABOUT THE DOCUMENTATION
5
1.1
This document
5
1.2
Warranty and liability
6
1.3
Obligation
6
1.4
Copyright
6
1.5
Storage
6
2
GENERAL SAFETY INSTRUCTIONS AND INFORMATION ON USE
7
2.1
Terminology
7
2.2
Designated use
8
2.3 Misuse
2.3.1
Explosion protection
8
8
2.4
Residual risks
9
2.5
Safety and warning signs on the frequency inverter
9
2.6 Warning information and symbols used in the user manual
2.6.1
Hazard classes
2.6.2
Hazard symbols
2.6.3
Prohibition signs
2.6.4
Personal safety equipment
2.6.5
Recycling
2.6.6
Grounding symbol
2.6.7
ESD symbol
2.6.8
Information signs
2.6.9
Font style in documentation
10
10
10
10
10
11
11
11
11
11
2.7
Directives and guidelines to be adhered to by the operator
11
2.8
Operator's general plant documentation
11
2.9 Operator's/operating staff's responsibilities
2.9.1
Selection and qualification of staff
2.9.2
General work safety
12
12
12
2.10
Organizational measures
2.10.1 General
2.10.2 Use in combination with third-party products
2.10.3 Transport and Storage
2.10.4 Handling and installation
2.10.5 Electrical connections
2.10.6 Safe operation
2.10.7 Maintenance and service/troubleshooting
2.10.8 Final decommissioning
12
12
12
13
13
13
13
14
14
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3
INTRODUCTION
15
3.1
Supported configurations
17
3.2
Initialization time
18
4
FIRST COMMISSIONING
18
5
ASSEMBLY/DISASSEMBLY OF COMMUNICATION MODULE
19
5.1
Assembly
19
5.2
Disassembly
20
6
MODBUS/TCP INTERFACE
21
6.1 Communication modules
6.1.1
Installation instructions
22
23
6.2 Setup
6.2.1
TCP/IP configuration
6.2.2
TCP/IP address & Subnet settings
6.2.3
Modbus/TCP Timeout settings
23
23
24
24
6.3
25
7
7.1
Operating behavior in the case of a communication error
PROTOCOL
26
Telegram structure
26
7.2 Supported function codes
7.2.1
Function code 3, reading 16-bit or 32-bit parameters
7.2.2
Function code 6, write 16-bit parameter
7.2.3
Function code 16, write 16-bit parameter
7.2.4
Function code 16, write 32-bit parameter
7.2.5
Function code 100 (=0x64), read 32-bit parameter
7.2.6
Function code 101 (=0x65), write 32-bit parameter
7.2.7
Function code 8, diagnosis
7.2.8
Exception condition responses
7.2.9
Exception condition codes
7.2.10 Modbus/TCP mode of transmission
27
28
29
31
32
33
34
36
38
39
40
7.3
40
8
8.1
Resetting errors
PARAMETER ACCESS
41
Handling of datasets / cyclic writing of parameters
8.2 Handling of index parameters / cyclic writing
8.2.1
Example: Writing of index parameters
8.2.2
Example: Reading of index parameters
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41
42
43
43
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9
EXAMPLE MESSAGES MODBUS/TCP
44
9.1 16-bit access
9.1.1
Function code 3, read 16-bit parameter
9.1.2
Function code 6, write 16-bit parameter
9.1.3
Function code 16, write 16-bit parameter
44
44
45
46
9.2 32-bit access
9.2.1
Function code
9.2.2
Function code
9.2.3
Function code
9.2.4
Function code
9.2.5
Function code
47
47
48
49
50
51
3, read 32-bit parameter
16, write 32-bit parameter
100 (=0x64), read 32-bit parameter
101 (=0x65), write 32-bit parameter
8, diagnosis
10 MOTION CONTROL INTERFACE (MCI) / MOTION CONTROL OVERRIDE
(MCO)
52
10.1
53
Motion Control Override
10.2
Functions of Motion Control Interface (MCI)
10.2.1 Reference system
10.2.2 Modes of operation
10.2.3 Current position and contouring errors
10.2.4 Target window
10.2.5 Position Controller
10.2.6 Homing
10.2.7 Move away from Hardware limit switches
58
58
58
59
59
60
61
62
11
63
CONTROL OF FREQUENCY INVERTER
11.1
Control via contacts/remote contacts
11.1.1 Device state machine
64
66
11.2
Control via state machine
11.2.1 Statemachine diagram
67
69
11.3
Configurations without Motion Control
11.3.1 Behavior in the case of a quick stop
11.3.2 Behavior in the case of transition 5 (disable operation)
11.3.3 Reference value/actual value
11.3.4 Example sequence
72
72
73
74
75
11.4
Motion control configurations
11.4.1 Velocity mode [rpm]
11.4.2 Profile Velocity mode [u/s] (pv)
11.4.3 Profile position mode
11.4.4 Homing mode
11.4.5 Table travel record
11.4.6 Move away from limit switch mode
11.4.7 Electronic gear: Slave
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77
82
86
94
97
105
109
3
12
ACTUAL VALUES
12.1
13
120
Actual values Motion Control Interface / Motion Control Override
PARAMETER LIST
120
121
13.1
Actual values (Menu “Actual”)
121
13.2
Parameters (Menu “Para”)
122
14
APPENDIX
124
14.1
List of control words
124
14.2
Overview of status words
125
14.3
Warning messages
126
14.4
Application warning messages
127
14.5
Error messages
128
14.6
Conversions
14.6.1 Speed [1/min] into frequency [Hz]
14.6.2 Frequency [Hz] into speed [1/min]
14.6.3 Speed in user units per second [u/s] into frequency[Hz]
14.6.4 Frequency [Hz] into speed in user units per second [u/s]
14.6.5 Speed in user units per second [u/s] into speed [1/min]
14.6.6 Speed [1/min] into speed in user units per second [u/s]
129
129
129
129
129
129
129
INDEX
130
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ACU Modbus/TCP
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1
General Information about the Documentation
For better clarity, the documentation of the frequency inverter is structured according to the customer-specific requirements.
The present manual was created in the German language. The German manual is the original version.
Other language versions are translations.
Quick Start Guide
The “Quick Start Guide” describes the basic steps required for mechanical and electrical installation of
the frequency inverter. The guided commissioning supports you in the selection of necessary parameters and the configuration of the software of the frequency inverter.
User manual
The user manual documents the complete functionality of the frequency inverter. The parameters
required for special purposes, for adjustment to the application and the numerous additional functions
are described in detail.
Separate user manuals are supplied for optional components for the frequency inverter. These manuals complement the operating instructions and the “Quick Start Guide” for the frequency inverter.
Application manual
The application manual complements the documentation to ensure goal-directed installation and
commissioning of the frequency inverter. Information on various topics in connection with the use of
the frequency inverter is described in context with the specific application.
Installation instructions
The installation manual describes the installation and use of devices, complementing the “Quick Start
Guide” and the user manual.
1.1
This document
This document describes the communication via the Modbus/TCP protocol with frequency inverters of
the ACTIVE Cube series of devices. Thanks to the modular hardware and software structure, the frequency inverters can be customized to meet to customer's specific requirements, including applications requiring high functionality and dynamism.
WARNING
Compliance with the documentation is required to ensure safe operation of the frequency inverter. BONFIGLIOLI VECTRON GmbH shall not be held liable for any damage
caused by any non-compliance with the documentation.
In case any problems occur which are not covered by the documentation sufficiently,
please contact the manufacturer.
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1.2
Warranty and liability
BONFIGLIOLI VECTRON GmbH would like to point out that the contents of this user manual do not
form part of any previous or existing agreement, assurance or legal relationship. Neither are they
intended to supplement or replace such agreements, assurances or legal relationships. Any obligations
of the manufacturer shall solely be based on the relevant purchase agreement which also includes the
complete and solely valid warranty stipulations. These contractual warranty provisions are neither
extended nor limited by the specifications contained in this documentation.
The manufacturer reserves the right to correct or amend the specifications, product information and
omissions in these operating instructions without notice. The manufacturer shall not be liable for any
damage, injuries or costs which may be caused for the aforementioned reasons.
Furthermore, BONFIGLIOLI VECTRON GmbH excludes any warranty/liability claims for any personal
and/or material damage if such damage is due to one or more of the following causes:
• inappropriate use of the frequency inverter,
• non-compliance with the instructions, warnings and prohibitions contained in the documentation,
• unauthorized modifications of the frequency inverter,
• insufficient monitoring of parts of the machine/plant which are subject to wear,
• repair work at the machine/plant not carried out properly or in time,
• catastrophes by external impact and force majeure.
1.3
Obligation
This user manual must be read before commissioning and complied with. Anybody entrusted with
tasks in connection with the
•
transport,
•
assembly,
•
installation of the frequency inverter and
•
operation of the frequency inverter
must have read and understood the user manual and, in particular, the safety instructions in order to
prevent personal and material losses.
1.4
Copyright
In accordance with applicable law against unfair competition, this user manual is a certificate. Any
copyrights relating to it shall remain with
BONFIGLIOLI VECTRON GmbH
Europark Fichtenhain B6
47807 Krefeld
Germany
This user manual is intended for the operator of the frequency inverter. Any disclosure or copying of
this document, exploitation and communication of its contents (as hardcopy or electronically) shall be
forbidden, unless permitted expressly.
Any non-compliance will constitute an offense against the copyright law dated 09 September 1965,
the law against unfair competition and the Civil Code and may result in claims for damages. All rights
relating to patent, utility model or design registration reserved.
1.5
Storage
The documentation form an integral part of the frequency inverter. It must be stored such that it is
accessible to operating staff at all times. If the frequency inverter is sold on to other users, then this
user manual must also be handed over.
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2
General safety instructions and information on use
The chapter "General safety instructions and information on use" contains general safety instructions
for the Operator and the Operating Staff. At the beginning of certain main chapters, some safety instructions are included which apply to all work described in the relevant chapter. Special work-specific
safety instructions are provided before each safety-relevant work step.
2.1
Terminology
According to the documentation, different activities must be performed by certain persons with certain
qualifications.
The groups of persons with the required qualification are defined as follows:
Operator
This is the entrepreneur/company who/which operates the frequency inverter and uses it as per the
specifications or has it operated by qualified and instructed staff.
Operating staff
The term Operating Staff covers persons instructed by the Operator of the frequency inverter and
assigned the task of operating the frequency inverter.
Skilled Personnel
The term Skilled Personnel covers staff that are assigned special tasks by the Operator of the frequency inverter, e.g. installation, maintenance and service/repair and troubleshooting. Based on their
qualification and/or know-how, Skilled Personnel must be capable of identifying defects and assessing functions.
Qualified electrician
The term Qualified Electrician covers qualified and trained staff that have special technical know-how
and experience with electrical installations. In addition, Qualified Electricians must be familiar with the
applicable standards and regulations, they must be able to assess the assigned tasks properly and
identify and eliminate potential hazards.
Instructed person
The term Instructed Person covers staff that are instructed and trained about/in the assigned tasks
and the potential hazards that might result from inappropriate behavior. In addition, instructed persons must have been instructed in the required protection provisions, protective measures, the applicable directives, accident prevention regulations as well as the operating conditions and have their
qualification verified.
Expert
The term Expert covers qualified and trained staff that have special technical know-how and experience relating to the frequency inverter. Experts must be familiar with the applicable government work
safety directives, accident prevention regulations, guidelines and generally accepted rules of technology in order to assess the operationally safe condition of the frequency inverter.
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2.2
Designated use
The frequency inverter is designed according to the state of the art and recognized safety regulations.
The frequency inverters are electrical drive components intended for installation in industrial plants or
machines. Commissioning and start of operation is not allowed until it has been verified that the machine meets the requirements of the EC Machinery Directive 2006/42/EC and DIN EN 60204-1.
The frequency inverters meet the requirements of the low voltage directive 2006/95/EEC and DIN
EN 61800-5-1. CE-labeling is based on these standards. Responsibility for compliance with the EMC
Directive 2004/108/EC lies with the operator. Frequency inverters are only available at specialized
dealers and are exclusively intended for commercial use as per EN 61000-3-2.
No capacitive loads may be connected to the frequency inverter.
The technical data, connection specifications and information on ambient conditions are indicated on
the rating plate and in the documentation and must be complied with at all times.
2.3
Misuse
Any use other than that described in "Designated use" shall not be permissible and shall be considered as misuse.
For, example, the machine/plant must not be operated
•
by uninstructed staff,
•
while it is not in perfect condition,
•
without protection enclosure (e.g. covers),
•
without safety equipment or with safety equipment deactivated.
The manufacturer shall not be held liable for any damage resulting from such misuse. The plant operator shall bear the sole risk.
2.3.1
Explosion protection
The frequency inverter is an IP 20 protection class device. For this reason, use of the device in explosive atmospheres is not permitted.
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2.4
Residual risks
Residual risks are special hazards involved in handling of the frequency inverter which cannot be eliminated despite the safety-compliant design of the device. Remaining hazards are not obvious and can
be a source of possible injury or health damage.
Typical residual hazards include:
Electrical hazard
Danger of contact with energized components due to a defect, opened covers or enclosures or improper working on electrical equipment.
Danger of contact with energized components in frequency inverter if no external disconnection device was installed by the operator.
Electrostatic charging
Touching electronic components bears the risk of electrostatic discharges.
Thermal hazards
Risk of accidents by hot machine/plant surfaces, e.g. heat sink, transformer, fuse or sine filter.
Charged capacitors in DC link
The DC link may have dangerous voltage levels even up to three minutes after shutdown.
Danger of equipment falling down/over, e.g. during transport
Center of gravity is not the middle of the electric cabinet modules.
2.5
Safety and warning signs on the frequency inverter

Comply with all safety instructions and danger information provided on the frequency inverter.
•
Safety information and warnings on the frequency inverter must not be removed.
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2.6
2.6.1
Warning information and symbols used in the user manual
Hazard classes
The following hazard identifications and symbols are used to mark particularly important information:
DANGER
Identification of immediate threat holding a high risk of death or serious injury if not
avoided.
WARNING
Identification of immediate threat holding a medium risk of death or serious injury if
not avoided.
CAUTION
Identification of immediate threat holding a low risk of minor or moderate physical
injury if not avoided.
NOTE
Identification of a threat holding a risk of material damage if not avoided.
2.6.2
Hazard symbols
Symbol
Meaning
Symbol
Meaning
General hazard
Suspended load
Electrical voltage
Hot surfaces
2.6.3
Prohibition signs
Symbol
Meaning
No switching; it is forbidden to switch the machine/plant, assembly on
2.6.4
Personal safety equipment
Symbol
Meaning
Wear body protection
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2.6.5
Recycling
Symbol
Meaning
Recycling, to avoid waste, collect all materials for
reuse
2.6.6
Grounding symbol
Symbol
Meaning
Ground connection
2.6.7
ESD symbol
Symbol
Meaning
ESD: Electrostatic Discharge (can damage components and assemblies)
2.6.8
Information signs
Symbol
Meaning
Tips and information making using the frequency
inverter easier.
2.6.9
Font style in documentation
Example
1234
P.1234
Font style
bold
italic, Font
Times New Roman
bold
Q.1234
bold
Parameter
2.7
Use
Representation of parameter numbers
Representation of parameter names
Representation of parameter numbers without name, e.g. in
formulas
Representation of source numbers
Directives and guidelines to be adhered to by the operator
The operator must follow the following directives and regulations:

Ensure that the applicable workplace-related accident prevention regulations as well as other applicable national regulation are accessible to the staff.

An authorized person must ensure, before using the frequency inverter, that the device is used in
compliance with its designated use and that all safety requirements are met.

Additionally, comply with the applicable laws, regulations and directives of the country in which
the frequency inverter is used.
Any additional guidelines and directives that may be required additionally shall be defined by the operator of the machine/plant considering the operating environment.
2.8
•
Operator's general plant documentation
In addition to the user manual, the operator should issue separate internal operating instructions
for the frequency inverter. The user manual of the frequency inverter must be included in the user
manual of the whole plant.
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2.9
2.9.1
Operator's/operating staff's responsibilities
Selection and qualification of staff

Any work on the frequency inverter may only be carried out by qualified technical staff. The staff
must not be under the influence of any drugs. Note the minimum age required by law. Define the
staff's responsibility in connection with all work on the frequency inverter clearly.

Work on the electrical components may only be performed by a qualified electrician according to
the applicable rules of electrical engineering.
•
The operating staff must be trained for the relevant work to be performed.
2.9.2
General work safety

In addition to the user manual of the machine/plant, any applicable legal or other regulations
relating to accident prevention and environmental protection must be complied with. The staff
must be instructed accordingly.
Such regulations and/or requirements may include, for example, handling of hazardous media and
materials or provision/use of personal protective equipment.

In addition to this user manual, issue any additional directives that may be required to meet specific operating requirements, including supervision and reporting requirements, e.g. directives relating to work organization, workflow and employed staff.

Unless approved of expressly by the manufacturer, do not modify the frequency inverter in any
way, including addition of attachments or retrofits.

Only use the frequency inverter if the rated connection and setup values specified by the manufacturer are met.
•
Provide appropriate tools as may be required for performing all work on the frequency inverter
properly.
2.10
2.10.1
Organizational measures
General

Train your staff in the handling and use of the frequency inverter and the machine/plant as well
as the risks involved.

Use of any individual parts or components of the frequency inverter in other parts of the operator's machine/plant is prohibited.
•
Optional components for the frequency inverter must be used in accordance with their designated
use and in compliance with the relevant documentation.
2.10.2
Use in combination with third-party products
•
Please note that BONFIGLIOLI VECTRON GmbH will not accept any responsibility for compatibility
with third-party products (e.g. motors, cables or filters).
•
In order to enable optimum system compatibility, BONFIGLIOLI VECTRON GmbH offers components facilitating commissioning and providing optimum synchronization of the machine/plant
parts in operation.
•
If you use the frequency inverter in combination with third-party products, you do this at your
own risk.
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2.10.3
Transport and Storage
•
The frequency inverters must be transported and stored in an appropriate way. During transport
and storage the devices must remain in their original packaging.
•
The units may only be stored in dry rooms which are protected against dust and moisture and are
exposed to small temperature deviations only. The requirements of DIN EN 60721-3-1 for storage,
DIN EN 60721-3-2 for transport and labeling on the packaging must be met.
•
The duration of storage without connection to the permissible nominal voltage may not exceed
one year.
2.10.4

Handling and installation
Do not commission any damaged or destroyed components.

Prevent any mechanical overloading of the frequency inverter. Do not bend any components and
never change the isolation distances.

Do not touch any electronic construction elements and contacts. The frequency inverter is
equipped with components which are sensitive to electrostatic energy and can be damaged if
handled improperly. Any use of damaged or destroyed components will endanger the machine/plant safety and shall be considered as a non-compliance with the applicable standards.

Only install the frequency inverter in a suitable operating environment. The frequency inverter is
exclusively designed for installation in industrial environments.
•
If seals are removed from the case, this can result in the warranty becoming null and void.
2.10.5
Electrical connections

The five safety rules must be complied with.

Never touch live terminals. The DC link may have dangerous voltage levels even up to three
minutes after shutdown.

When performing any work on/with the frequency inverter, always comply with the applicable
national and international regulations/laws on work on electrical equipment/plants of the country
in which the frequency inverter is used.

The cables connected to the frequency inverters may not be subjected to high-voltage insulation
tests unless appropriate circuitry measures are taken before.
•
Only connect the frequency inverter to suitable supply mains.
2.10.5.1 The five safety rules
When working on/in electrical plants, always follow the five safety rules:
1. Isolate
2. Take appropriate measures to prevent re-connection
3. Check isolation
4. Earth and short-circuit
5. Cover or shield neighboring live parts.
2.10.6
Safe operation

During operation of the frequency inverter, always comply with the applicable national and international regulations/laws on work on electrical equipment/plants.

Before commissioning and the start of the operation, make sure to fix all covers and check the
terminals. Check the additional monitoring and protective devices according to the applicable national and international safety directives.

During operation, never open the machine/plant

Do not connect/disconnect any components/equipment during operation.

The machine/plant holds high voltage levels during operation, is equipped with rotating parts
(fan) and has hot surfaces. Any unauthorized removal of covers, improper use, wrong installation
or operation may result in serious injuries or material damage.
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13

Some components, e.g. the heat sink or brake resistor, may be hot even some time after the machine/plant was shut down. Don't touch any surfaces directly after shutdown. Wear safety gloves
where necessary.

The frequency inverter may hold dangerous voltage levels until the capacitor in the DC link is discharged. Wait for at least 3 minutes after shutdown before starting electrical or mechanical work
on the frequency inverter. Even after this waiting time, make sure that the equipment is deenergized in accordance with the safety rules before starting the work.

In order to avoid accidents or damage, only qualified staff and electricians may carry out the work
such as installation, commissioning or setup.

In the case of a defect of terminals and/or cables, immediately disconnect the frequency inverter
from mains supply.

Persons not familiar with the operation of frequency inverters must not have access to the frequency inverter. Do not bypass nor decommission any protective facilities.

The frequency inverter may be connected to power supply every 60 s. This must be considered
when operating a mains contactor in jog operation mode. For commissioning or after an emergency stop, a non-recurrent, direct restart is permissible.

After a failure and restoration of the power supply, the motor may start unexpectedly if the AutoStart function is activated.
If staff are endangered, a restart of the motor must be prevented by means of external circuitry.

Before commissioning and the start of the operation, make sure to fix all covers and check the
terminals. Check the additional monitoring and protective devices according to EN 60204 and applicable safety directives (e.g. Working Machines Act or Accident Prevention Directives).
2.10.7
Maintenance and service/troubleshooting

Visually inspect the frequency inverter when carrying out the required maintenance work and
inspections at the machine/plant.

Perform the maintenance work and inspections prescribed for the machine carefully, including the
specifications on parts/equipment replacement.

Work on the electrical components may only be performed by a qualified electrician according to
the applicable rules of electrical engineering. Only use original spare parts.

Unauthorized opening and improper interventions in the machine/plant can lead to personal injury
or material damage. Repairs on the frequency inverters may only be carried out by the manufacturer or persons authorized by the manufacturer. Check protective equipment regularly.
•
Before performing any maintenance work, the machine/plant must be disconnected from mains
supply and secured against restarting. The five safety rules must be complied with.
2.10.8
Final decommissioning
Unless separate return or disposal agreements were made, recycle the disassembled frequency inverter components:
• Scrap metal materials
• Recycle plastic elements
• Sort and dispose of other component materials
Electric scrap, electronic components, lubricants and other utility materials must be
treated as special waste and may only be disposed of by specialized companies.
Always comply with any applicable national disposal regulations as regards environmentally compatible disposal of the frequency inverter. For more details, contact the
competent local authorities.
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3
Introduction
The present document describes the Modbus/TCP protocol for the CM-Modbus/TCP and CMModbus/TCP-2P (switch function integrated) communication modules. After connecting Modbus/TCP
to the PLC, you can use an additional logic connection from CM-Modbus/TCP to the VPlus software
running on a terminal connected via an Ethernet network.
For Modbus/TCP connection, the frequency inverter must be equipped with the CM-Modbus/TCP or
CM-Modbus/TCP-2P communication module.
The CM-Modus/TCP and CM-Modbus/TCP-2P communication modules are separate components and
must be attached to the frequency inverter. This is described in chapter 5.1 “Assembly”.
Modbus/TCP communication (as described in this manual) requires software version 5.3.0 or higher.
This manual only describes the CM-Modbus/TCP and CM-Modbus/TCP-2P communication modules. This manual is not to be understood as providing general/basic information on Ethernet interfaces or frequency inverters.
General/basic knowledge of the methods and function of Modbus/TCP interfaces and
Modbus/TCP protocol are a prerequisite for understanding and implementing the instructions provided by this document.
In some chapters of these instructions, setting and display options via the PC software
VPlus are described as an alternative to the control unit. In this case, VPlus can use
− CM-Modbus/TCP or CM-Modbus/TCP-2P module or
− the serial interface
for communication with the frequency inverter.
The module enables using Modbus/TCP and VPlus via the VABus/TCP protocol at the
same time.
WARNING
With CM-Modbus/TCP or CM-Modbus/TCP-2P, controllers can access all parameters of
the frequency inverter.
Changing parameters the function of which is unknown can result in malfunction of the
frequency inverter and dangerous situations in the plant.
Module variants:
There are two Modbus/TCP variants.
CM-Modbus/TCP provides a physical interface for communication via Modbus/TCP. A star-type network topology can be used. An external switch is the star point.
CM-Modbus/TCP-2P provides two physical interfaces for communication via Modbus/TCP. The following network topologies are possible:
•
Star-type (like in CM-Modbus/TCP)
•
Line
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15
[1]
[2]
[3]
[4]
16
PLC
PC for commissioning or diagnosis (connected temporarily or permanently)
ACU with CM-Modbus/TCP or CM-Modbus/TCP-2P (2nd port not connected)
ACU with CM-Modbus/TCP-2P
ACU Modbus/TCP
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3.1
Supported configurations
ACTIVE Cube frequency inverters support various types of control and reference point input
• Standard (without positioning functions)
• Positioning via contacts (or remote contacts)
• Positioning via Motion Control Interface (MCI) via Field Bus
A configuration with position control is selected when parameter Configuration 30 = x40 (e.g. 240) is
set. In order to use the full functionality of the Motion Control Interfaces, parameter Local/Remote 412 = “1-Control via statemachine” must be set additionally.
The operating behavior of the frequency inverter varies in the configuration groups, considering con-
trol word/status word and modes of operation.
Standard:
Required settings:
Configuration 30 ≠ x40
Local/Remote 412 = (remote) contacts
 Control (start, stop, frequency changeover, etc.) is typically performed through
o Digital contacts.
o Remote contacts via field bus.
 Reference values depend on the selected configuration. Typical:
o Reference speed/reference frequency:
 Analog input.
 Fixed values from parameters.
 Override Target Velocity vl [rpm] 1459 (target speed).
o Reference percentage for technology controller or torque control
 Analog input.
 Fixed values from parameters.
See Chapter 11.3 “Configurations without Motion Control” for control without positioning functions.
Positioning via contacts (or remote contacts)
Required settings:
Configuration 30 = x40
Local/Remote 412 = (remote) contacts
 Control (start, stop, target position changeover, etc.) is typically performed through
o Digital contacts.
o Remote contacts via field bus.
 Reference values depend on the selected configuration. Typical:
o Reference speed/ reference frequency.
o Reference target position.
Also refer to application manual “Positioning”.
MCI (Motion Control Interface – Positioning via Field Bus):
In Modbus/TCP communication, MCI is not available. You can use Motion Control Override (MCO) instead.
Configuration 30 = x40
Local/Remote 412 = 1 – Statemachine
 Control (start, stop, change of mode, etc.) is performed via Control word 410.
 Reference values result from the selected Override Modes Of Operation 1454.
Required settings:
Typical:
o
o
Speed reference via Override Target Velocity vl [rpm] 1459 (target speed).
Target position via Override Target Position 1455.
For information on how to use the Motion Control Interface, refer to Chapters 10 “Motion Control Interface (MCI) / Motion Control Override (MCO)” and 11.4 “Motion control configurations”.
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3.2
Initialization time
When the frequency inverter is turned on, the communication module must be initialized in addition to
the frequency inverter. The initialization can take up to 20 seconds.
Wait until the initialization phase is complete before starting the communication (RUN
LED).
4
First commissioning
For first commissioning, you should be familiar with the followings steps and the described functions:
• Installation of module
Chapter 5.1
• Selection of device control Local/Remote 412
Chapter 11
• Commissioning of device functions via PLC
o Motion Control Override
Chapter 10.1
o Fault Reaction
Chapter 6.3
 Fault reset
Chapter 7.3
• Setting reference values:
o Reference speed in speed-controlled conChapter 11.3
figuration x10, x11, x15, x16, x30, x60
o Reference in position configuration x40
Chapter 10 and 11.4
 Velocity Mode
Chapter 11.4.1
 Profile Velocity Mode
Chapter 11.4.2
 Profile Position Mode
Chapter 11.4.3
 Homing Mode
Chapter 11.4.4
 Table Travel record Mode
Chapter 11.4.5
 Mode change
Chapter 10
• Diagnosis:
18
Chapter 14 and 13.1
ACU Modbus/TCP
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5
Assembly/disassembly of communication module
5.1
Assembly
The CM-Modbus/TCP and CM-Modbus/TCP-2P communication modules are preassembled in a case and are ready for installation. In addition, a PE-spring is supplied for
PE-connection (shield).
CAUTION
Danger of destruction of frequency inverter and/or communication module
• Before installation of the communication module, the frequency inverter must
be disconnected from power supply. Installation is not permissible while the
unit is energized.
• Do not touch the PCB visible on the back of the module, otherwise components
may be damaged.
Work steps:
• Disconnect the frequency inverter from mains voltage and protect it against being
energized unintentionally.
• Remove covers (1) and (2) of the frequency inverter. Slot B (4) for the communication module is now accessible.
Steckplatz B
1
Steckplatz A
3
2
• Mount the supplied PE spring (5) using the M4 screw (6) in the unit. The spring
must be aligned centrally.
• Insert the communication module in slot B (4) until it engages audibly.
• Fix the communication module and PE spring (5) using the M2-screw provided at
the module.
5
6
(M4)
• In the upper cover (1), break out the pre-punched cutout (3) for the plug X310
(8).
• Mount the two covers (1) and (2).
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19
5.2
Disassembly
• Disconnect the frequency inverter from power supply and protect it against being
energized unintentionally.
• Remove covers (1) and (2) of the frequency inverter, see Chapter 5.1
“Assembly”.
• Loosen the M2 screw at the communication module.
• Unplug the communication module from Slot B (4) by unlocking the locking
hooks (9) on the right and left side of the module from the case of the frequency
inverter using a small screwdriver.
• The locking hooks (9) are located at the place where the locking hooks (10) for
the upper cover (1) project from the case of the frequency inverter.
• To do this, insert the screwdriver in the gap between the case of the module
and the frequency inverter carefully and push the locking hook inwards in
the direction of the arrow (). As soon as the right side is unlocked, pull
out the module a bit on the right side and hold it.
• Hold the module on the right side while unlocking the locking hook on the
left side in the same way ().
• Pull the module out of the slot by gently pulling on the right and left side alternately.
• Disassemble the PE spring (5), see Chapter 5.1 “Assembly”.
• Mount the two covers (1) and (2), see Chapter 5.1 “Assembly”.
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ACU Modbus/TCP
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6
Modbus/TCP interface
The frequency inverter can be controlled by a PLC or another master device via an Ethernet interfaces
using the Modbus/TCP protocol.
When a Modbus/TCP or Modbus/TCP-2P communication module is used, you can also access the frequency inverter using the VPlus software via Ethernet. VPlus can be used in parallel with a PLC with
Modbus/TCP communication.
This document does not provide basic information about Ethernet interfaces. Basic
knowledge of the Modbus/TCP protocol and Ethernet interfaces is required.
In some sections, setting and display options via the PC software VPlus are described as
an alternative to the control unit. In this case, VPlus communicates with the frequency
inverter via a serial interface or a direct Ethernet connection.
WARNING
With Modbus/TCP communication, controllers can access all parameters of the frequency inverter.
Changing parameters the function of which is unknown can result in malfunction of the
frequency inverter and dangerous situations in the plant.
CAUTION
When values are to be written cyclically at a high repetition rate, no entries shall be
made in the EEPROM, as this only allows a limited number of write cycles (approx. 1
million cycles). If the number of permissible write cycles is exceeded, the EEPROM will
be damaged. See chapter 8.1 “Handling of datasets / cyclic writing of parameters”.
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21
6.1
Communication modules
CM-Modbus/TCP
The CM-Modbus/TCP communication module features an active RJ45 port.
CM-Modbus/TCP-2P
The CM-Modbus/TCP-2P communication module features two active RJ45 ports with integrated
switching function. This enables easy linking (daisy chain) of frequency inverters which are connected
to a PLC.
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ACU Modbus/TCP
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6.1.1
Installation instructions
The Modbus/TCP module is connected to the PLC or other devices using standard CAT cables and
RJ45 connectors:
Ethernet standard:
IEEE 802.3, 100Base-TX (fast Ethernet)
Cable type:
S/FTP (cable with braided shield, (ISO/IEC 11801 or EN 50173, Straight
Through or Cross Over)
6.2
Setup
By default, the parameters of the CM-Modbus/TCP and CM-Modbus/TCP-2P communication modules
are set up as follows:
Parameters
No.
388
Description
Settings
Factory setting
1
Bus Error Behaviour
1432
IP-Address
1433
Netmask
255.255.255.0
1434
Gateway
0.0.0.0
1435
DNS Server
0.0.0.0
1436
DHCP Option
0
1437
IP Command
-
1440
Email Function
0
1441
Email Text (Body)
-
1439
Modbus/TCP Timeout
0
172.22.1.25
The parameter settings must be adapted to the actual application.
6.2.1
TCP/IP configuration
For the configuration of the IP address, Netmask, etc., refer to the CM-VABus/TCP user manual. For
details refer to the CM-VABus/TCP user manual, Chapter “TCP/IP configuration”.
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6.2.2
TCP/IP address & Subnet settings
For proper identification, each frequency inverter is assigned a TCP/IP address which must be unique
in the system.
6.2.2.1
Network without DHCP server:
The address is set via parameter IP-Address 1432. In addition, the subnet mask-Netmask 1433 must
be entered properly for the local network.
No.
1432
1433
Parameters
Description
IP Address
Netmask
6.2.2.2
Min.
0.0.0.0
0.0.0.0
Settings
Max.
255.255.255.255
255.255.255.255
Factory setting
172.22.1.25
255.255.255.0
Network with DHCP server:
When a DHCP server is used, manual network configuration is not required. Set DHCP Option 1436
to “1-Enabled” if you wish to use the DHCP function.
DHCP Option 1436
0 - Disabled
1 - Enabled
6.2.3
Function
Module must be configured manually, no DHCP server is used.
(Factory setting).
The settings are made by a DHCP server.
Modbus/TCP Timeout settings
The communication can be monitored: If communication fails, no data or faulty data will be transmitted. The Modbus/TCP Timeout feature will identify this state.
The timeout feature monitors communication for the time defined by parameter Modbus/TCP
Timeout 1439. The set value represents the time in milliseconds where correct data transfer must
take place.
If no data is transferred correctly within this time, the frequency inverter will signal the fault F2735
Modbus/TCP Timeout.
No.
1439
Parameters
Description
Modbus/TCP Timeout
Min.
0 ms
Settings
Max.
Factory setting
60000 ms
0 ms
When the parameter is set to 0 (factory setting), the monitoring function is off.
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ACU Modbus/TCP
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6.3
Operating behavior in the case of a communication error
The operating behavior in the case of errors in Modbus/TCP communication can be parameterized.
The required behavior can be set via parameter Bus Error Behaviour 388.
Function
Bus Error Behaviour 388
0 - no response
Operating point is maintained.
1 - Error
“Fault” status will be activated immediately. Factory setting.
Control command “Disable voltage” and switch to “switch on disabled” status.
Control command “Quick stop” and switch to “switch on disabled”
status.
Control command “Disable operation” and switch to “Error” status
once the drive has been shut down.
Control command “Quick stop” and switch to “Error” status once
the drive has been shut down.
2 - Stop
3 - Quick stop
4 - Shutdown + Error
5 - Quick stop + Error
The parameter settings Bus Error Behaviour 388 = 2…5 are evaluated depending on
parameter Local/Remote 412.
For evaluation of settings 2…5, parameter Local/Remote 412 must be set to value “1 Control via statemachine”.
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25
7
Protocol
The Modbus/TCP communication protocol is a Client/Server based protocol. Modbus/TCP communication will always be initialized by the client (e.g. PLC). The server nodes (frequency inverters) do not
communicate with one another.
Modbus/TCP communication will be established by the client via the TCP/IP-Port #502 on the side of
the Modbus/TCP server.
CM-Modbus/TCP and CM-Modbus/TCP-2P only support
• Port #502 for establishing Modbus/TCP connection
• one request per transaction only (NumberMaxOfServerTransaction = 1)
7.1
Telegram structure
A Modbus/TCP telegram comprises the following fields:
MBAP
Function code
Data
(Modbus RTU data contents)
MBAP Modbus Application Header
Field
Length
Description
Client
Transaction ID
(transaction identifier)
2 bytes
Initialized by
client
Protocol ID
(protocol identifier)
2 bytes
Identification of Modbus request/response
transaction
0 = Modbus protocol
Length
2 bytes
Initialized by
client (request)
ID of data unit
(unit identifier)
1 byte
Number of subsequent bytes (including ID of data unit)
Identification of serially connected Remote Slave
Server
(inverter)
Written back by the
server from the
request received
Written back by the
server from the
request received
Initialized by server
(response)
Initialized by
client (request)
Initialized by server
(response)
Initialized by
client
• The data unit identifier will not be processed by the server.
• The function code and data field structure are the same in Modbus/TCP and ModbusRTU.
• Modbus/TCP uses byte sequence Big-Endian (Motorola format).
The function code tells the server/frequency inverter which action is to be performed. The function
code is followed by a data field containing the parameters of the request (or the response parameters
in the case of the response by the frequency inverter).
If there are no errors while a request is received via Modbus/TCP, the data field will contain the required data. If an error occurs, the field contains an exception condition code to tell the master that
the request was not processed successfully. For information on how to handle exception conditions
and the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
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ACU Modbus/TCP
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7.2
Supported function codes
The Modbus definitions for writing and reading of data are not directly compatible with parameter
access by a frequency inverter (irrespective of the manufacturer of the frequency inverter). Modbus is
designed for reading bits and captures data in a different way. Data access is limited to a bit width of
16.
In order to meet the requirements of Modbus, data access is defined in the frequency inverters by the
following function codes.
16-bit values:
• Function code 3, read ONE data width of 16 bits (reading of hold register)
• Function code 6, write ONE data width of 16 bits (writing of single register)
• Function code 16, read ONE data width of 16 bits (writing of multiple registers)
32-bit values:
For access to 32-bit data, frequency inverters use the following adapted function codes:
• Function code 3, read TWO data widths of 16 bits (=32 bits) (reading of hold register)
• Function code 16, write TWO data widths of 16 bits (=32 bits) (writing of multiple registers)
• Function code 100, read ONE bit width 32
• Function code 101, write ONE bit width 32
The Modbus specification does not describe handling of 32-bit values. The implemented
handlings and function codes are quite common and frequently used. These functions
enable data access to 32-bit “Long” variables in the frequency inverter.
In all data fields containing more than one byte, the highest-value byte will be transferred firs (Big-Endian, Motorola Format).
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27
7.2.1
Function code 3, reading 16-bit or 32-bit parameters
This function code is used for reading 16-bit or 32-bit values from the frequency inverter.
Request Read 16-bit parameter:
Function code
Start address (dataset / para. no.)
Number of registers
1 byte
2 bytes
2 bytes
0x03
0x0000 – 0x963F
0x0001
1 byte
1 byte
2 bytes
0x03
0x02
0 – 0xFFFF
1 byte
2 bytes
2 bytes
0x03
0x0000 – 0x963F
0x0002
1 byte
1 byte
4 bytes
0x03
0x04
0 – 0xFFFFFFFF
1 byte
1 byte
0x83
2, 3 or 4
Response Read 16-bit parameter:
Function code
Number of bytes
Register value (parameter value)
Request Read 32-bit parameter:
Function code
Start address (dataset / para. no.)
Number of registers
Response Read 32-bit parameter:
Function code
Number of bytes
Register value (parameter value)
Exception condition response:
Error code
Exception condition code
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Bits
Hex.
Bin.
Start address
Data set
Parameter number
15 14 13 12 11 10 9
8
For the above example:
0
0
1
0
0
0
0
1
2
1
7
6
0
1
5
4
3
2
1
1
0
1
7
1
0
0
0
4
Number of registers
This field is used for saving the number of parameters to be written. The value must always be 1,
since only one parameter can be written at a time.
Number of bytes
This field is set to
• 2 for 16-bit parameters
• 4 for 32-bit parameters
Register value
This field contains the 16-bit or 32-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
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ACU Modbus/TCP
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Example:
A current value of 10.3 A is transferred. The actually transferred numerical value is 103, i.e. 0x67 in
the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Value of register number field is not 1
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when reading parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
Example Telegrams:
16 Bit
Modbus RTU
7.2.2
32 Bit
see chapter 9.1.1
see chapter 9.2.1
Function code 6, write 16-bit parameter
This function code is used for writing integer or unsigned integer values into the frequency inverter.
Request Write 16-bit parameter:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Register value (parameter value)
7
1
1
2
2
bytes
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x06
0x0000 – 0x963F
0 – 0xFFFF
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x06
0x0000 – 0x963F
0 – 0xFFFF
Response:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Register value (parameter value)
Exception condition response:
MBAP header
Address
Error code
Exception condition code
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1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0x86
2, 3 or 4
ACU Modbus/TCP
29
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Data set
Bits
15 14 13 12 11
For the above example:
Hex. 0
0
1
0
0
Bin.
2
10
0
Start address
Parameter number
9
8
7
6
5
4
3
2
0
0
1
1
0
1
1
1
1
7
1
0
0
0
4
Register value
This field is used for saving the 16-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example:
A current value of 10.3 A is to be transferred. The actually transferred numerical value is 103, i.e.
0x67 in the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when writing parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.1.2.
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7.2.3
Function code 16, write 16-bit parameter
Function code 16 can be used for writing 16-bit values into the frequency inverter.
Request Write 16-bit parameter:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Number of registers
Number of bytes
Register value (parameter value)
7
1
1
2
2
1
2
bytes
byte
byte
bytes
bytes
byte
bytes
1 – 0xF7 (=247)
0x10
0x0000 – 0x963F
0x0001
0x02
0 – 0xFFFF
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x10
0x0000 – 0x963F
0x0001
Response:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Number of registers
Exception condition response:
MBAP header
Address
Error code
Exception condition code
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0x90
2, 3 or 4
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Data set
15 14 13 12 11
For the above example:
Hex. 0
0
1
0
0
Bin.
2
Bits
10
Start address
Parameter number
9
8
7
6
5
4
3
2
1
0
0
0
0
1
0
0
1
0
1
1
1
7
1
4
Register value
This field is used for saving the 16-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example:
A current value of 10.3 A is to be transferred. The actually transferred numerical value is 103, i.e.
0x67 in the hexadecimal system.
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31
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when writing parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.1.3.
7.2.4
Function code 16, write 32-bit parameter
Function code 16 can be used for writing 32-bit values into the frequency inverter.
Request Write 32-bit parameter:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Number of registers
Number of bytes
Register value (parameter value)
1
1
2
2
1
2
byte
byte
bytes
bytes
byte
bytes
1 – 0xF7 (=247)
0x10
0x0000 – 0x963F
0x0002
0x04
0 – 0xFFFF FFFF
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x10
0x0000 – 0x963F
0x0002
Response:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Number of registers
Exception condition response:
MBAP header
Address
Error code
Exception condition code
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0x90
2, 3 or 4
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Data set
Bits
15 14 13 12 11
For the above example:
Hex. 0
0
1
0
0
Bin.
2
32
10
0
1
Start address
Parameter number
9
8
7
6
5
4
3
2
0
0
1
1
0
1
1
7
ACU Modbus/TCP
1
1
0
0
0
4
10/13
Register value
This field is used for saving the 32-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example:
A frequency value of 123.45 Hz is to be transferred. The actually transferred numerical value is 12345,
i.e. 0x3039 in the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when writing parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.2.2.
7.2.5
Function code 100 (=0x64), read 32-bit parameter
Request:
MBAP header
Address
Function code
Start address (dataset / para. no.)
1 byte
1 byte
2 bytes
1 – 0xF7 (=247)
0x64
0x0000 – 0x963F
1 byte
1 byte
4 bytes
1 – 0xF7 (=247)
0x64
0 – 0x FFFF FFFF
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0xE4
2, 3 or 4
Response:
MBAP header
Address
Function code
Register value (parameter value)
Exception condition response:
MBAP header
Address
Error code
Exception condition code
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Data set
15 14 13 12 11
For the above example:
Hex. 0
0
1
0
0
Bin.
2
Bits
10/13
10
Start address
Parameter number
9
8
7
6
5
4
3
2
1
0
0
0
0
1
0
0
1
1
0
1
1
7
ACU Modbus/TCP
1
4
33
Number of registers
This field is used for saving the 32-bit parameter values.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example:
A frequency value of 100.25 Hz is to be transferred. The actually transferred numerical value is 10025,
i.e. 0x2729in the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when reading parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.2.3.
7.2.6
Function code 101 (=0x65), write 32-bit parameter
Request:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Register value (parameter value)
1
1
2
4
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x65
0x0000 – 0x963F
0 – 0xFFFF FFFF
1
1
2
4
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x65
0x0000 – 0x963F
0 – 0xFFFF FFFF
Response:
MBAP header
Address
Function code
Start address (dataset / para. no.)
Register value (parameter value)
Exception condition response:
MBAP header
Address
Error code
Exception condition code
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0xE5
2, 3 or 4
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
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ACU Modbus/TCP
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Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Data set
Bits
15 14 13 12 11
For the above example:
Hex. 0
0
1
0
0
Bin.
2
10
0
Start address
Parameter number
9
8
7
6
5
4
3
2
0
0
1
1
0
1
1
1
1
7
1
0
0
0
4
Register value
This field is used for saving the 32-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example: Frequency value
A frequency value of 100.25 Hz is to be transferred. The actually transferred numerical value is 10025,
i.e. 0x2729in the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2
INVALID DATA ADDRESS
• Parameter unknown
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
4
SLAVE DEVICE ERROR
• Error when reading parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.2.4.
10/13
ACU Modbus/TCP
35
7.2.7
Function code 8, diagnosis
This function code is used for accessing the Modbus diagnosis counter of the frequency inverter. Each
counter can be accessed via a sub-function code and a counter number. Each counter can be deleted
by entering the hexadecimal sub-function code 0x0A.
The following sub-function codes are supported.
Sub-function
Name
Description
0x0A
0x0B
Delete all counters
Return number of bus messages
0x0C
Return number of bus transfer errors
0x0D
0x0E
Return number of bus exceptions
Return number of slave messages
0x0F
Return number of “Slave – no response”
messages
Return number of slave NAK (negative
receipt acknowledgment)
Return number of “Slave busy” messages
Return number of bus character data
loss error
0x10
0x11
0x12
Resets all counters to 0
Number of valid messages received
(including all addresses)
Number of messages with CRC or parity/block check/data loss errors
Number of exception responses sent
Number of messages received (including
slave address)
Number of broadcast messages received
Not used, return value will always be 0
Not used, return value will always be 0
Number of messages with data loss
errors
Request (sub-function 0x0A, Delete all counters):
MBAP Header
Address
Function code
Sub-function
Data
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x08
0x000A
0x0000
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x08
0x000A
0x0000
Response:
MBAP Header
Address
Function code
Sub-function
Data
Exception condition response:
MBAP Header
Address
Error code
Exception condition code
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0x88
1, 3 or 4
Data
This field will always be 0x0000.
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ACU Modbus/TCP
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Exception condition code
1
INVALID FUNCTION CODE
• Sub-function is not supported
3
INVALID DATA VALUE
• Number of bytes in data field too small or too high
• “Data field” not 0x0000
4
SLAVE DEVICE ERROR
• Error while executing the function.
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
Request (sub-function 0x0B – 0x12, return counter value):
Address
Function code
Sub-function
Data
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x08
0x000B – 0x0012
0x0000
1
1
2
2
byte
byte
bytes
bytes
1 – 0xF7 (=247)
0x08
0x000B – 0x0012
0 – 0xFFFF
Response:
Address
Function code
Sub-function
Data (counter value)
Exception condition response:
Address
Error code
Exception condition code
1 byte
1 byte
1 byte
1 – 0xF7 (=247)
0x88
1, 3 or 4
Data
In the request, this field will always be set to 0x0000, in the response, it will show the current counter
value.
Exception condition code
The following exception condition codes are possible:
1
INVALID FUNCTION CODE
3
INVALID DATA VALUE
4
SLAVE DEVICE ERROR
• Sub-function is not supported
• Number of bytes in data field too small or too high
• “Data field” not 0x0000
• Error when reading diagnosis counter
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
10/13
ACU Modbus/TCP
37
7.2.8
Exception condition responses
The master device expects a normal response when it sends a request to the frequency inverter. A
request by the master can result in one of four reactions:
• If the frequency inverter receives the request without any transmission errors, it can process it and
send a normal response.
• If the frequency inverter does not receive the request due to a transmission error, it will not send a
response. The master will check the conditions for time monitoring of the request.
• If the frequency inverter receives the request and identifies a transmission error (parity, LCR, CRC,
…), it will not send a response. The master will check the conditions for time monitoring of the request.
• If the frequency inverter receives the request without any transmission error, but cannot process
it, e.g. because an unknown parameter is to the read, it will send an exception response containing
information about the type of error.
The exception condition response contains two fields which are different from normal responses:
Function code field:
In a normal response, the frequency inverter will return the function code of the original request. All
function codes have 0 as the most significant bit (MSB); their values are less than the hexadecimal
value of 0x80. In an exception condition response, the frequency inverter will set the most significant
bit of the function code to 1. This will increase the hexadecimal value of the function code in an exception condition response by 0x80 compared to the value of a normal response. With the most significant bit in the function code set to the new value, the master can identify the exception response and
analyze the exception condition code in the data field.
Data field:
In a normal response, the frequency inverter will send data or statistical values in the data field (requested information) . In an exception condition response, the frequency inverter will send an exception condition code in the data field. This code indicates the cause of the exception condition.
The exception condition codes generated by the frequency inverter are listed in Chapter 7.2.9
“Exception condition codes”.
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ACU Modbus/TCP
10/13
7.2.9
Exception condition codes
The frequency inverter generates the following exception condition codes:
Code
Modbus name
1
INVALID FUNCTION
Reason of generation by frequency inverter
• Function code unknown
• Sub-function code unknown (diagnosis function)
2
3
INVALID DATA ADDRESS
• Wrong number of registers (must always be 0x01)
INVALID DATA VALUE
• Block check error
• Unknown parameter or data type of parameter unknown
• Number of bytes in too small or too high
• Certain fields not set to typical values
4
SLAVE DEVICE ERROR
• Unsuccessful reading or writing of parameters
The cause of the error can be analyzed by reading parameter
VABusSST Error Register 11.
Error number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VABusSST Error Register 11
Meaning
No error
Non-permissible parameter value.
Non-permissible dataset
Parameter not readable (write-only)
Parameter not writable (read-only)
EEPROM read error
EEPROM write error
EEPROM checksum error
Parameter cannot be written while the drive is running
Values of data sets are different
Wrong parameter type
Unknown parameter
Checksum error in received telegram
Syntax error in received telegram
Data type of parameter does not match the number of bytes in the telegram
Unknown error
When parameter VABusSST Error Register 11 is read, it is deleted automatically at the same time.
10/13
ACU Modbus/TCP
39
7.2.10
Modbus/TCP mode of transmission
The usable contents of Modbus/TCP is basically structured like Modbus RTU.
7.2.10.1 Modbus RTU message telegram
Modbus messages are added by a sending device into a telegram which has a defined start and end
point. The TCP/IP frame enables receiving devices to identify the beginning and end of the message.
Incomplete messages must be detected and result in an error.
Modbus RTU messages
Address Function
8 bits
8 bits
Data
N x 8 bits
The whole message telegram must be transmitted as a coherent flow of characters.
7.3
Resetting errors
Depending on the settings and operating state of the device, errors can be reset in various ways:
• When using control via parameter Local/Remote 412 = Statemachine:
Set bit 7 of control word Control word 410= 0x8000.
• By pressing the stop button of the control panel.
Resetting by pressing the STOP button is only possible if Parameter Local/Remote 412 permits
control via the control panel.
• Via parameter Error acknowledgment 103 which is assigned a logic signal or a digital input.
A reset via a digital signal can only be carried out when parameter Local/Remote 412 permits this
or when an input with the addition (hardware) is selected in the case of physical inputs.
Some errors will occur again after an error reset. In such cases, it may be necessary to take certain measures (e.g. moving from a limit switch in the non-disabled
direction).
40
ACU Modbus/TCP
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8
Parameter access
8.1
Handling of datasets / cyclic writing of parameters
The parameter values are accessed based on the parameter number and the required dataset. There
are parameters the values of which are present once (dataset 0) as well as parameters the values of
which are present four times (dataset 1...4). These are used for dataset switching.
If parameters which are present four times in the datasets are set to Dataset = 0, the four datasets
are set to the same transmitted value. A read access with data set = 0 to such parameters is only
successful if all four data sets are set to the same value. If this is not the case, an error will be signaled.
NOTE
The values are entered automatically in the EEPROM of the controller. When values
are to be written cyclically, no entries shall be made in the EEPROM, as this only allows a limited number of write cycles (approx. 1 million cycles). When the number of
permissible write cycles is exceeded, the EEPROM will be destroyed.
In order to avoid this, data which is written cyclically can be entered in the RAM exclusively without a writing cycle on the EEPROM. Such data will be lost in the case of
a power failure and have to be written again after Power off/on.
This mechanism is started when the target dataset is increased by five when specifying the dataset.
Writing on virtual dataset in RAM
Parameters
Dataset 0
Dataset 1
Dataset 2
Dataset 3
Dataset 4
10/13
EEPROM
0
1
2
3
4
RAM
5
6
7
8
9
ACU Modbus/TCP
41
8.2
Handling of index parameters / cyclic writing
Index parameters are used for various ACU functions. Here, 16 or 32 indexes are used instead of the
4 data sets. For each function, the individual indexes are addressed separately via an index access
parameter. Via the indexing parameter, you can select if the data is to be written to EEPROM or RAM.
Function
Positioning
Parameters
Index range
Indexing
parameter
Write
EEPROM
and read
Write
RAM
01);
1…32
331);
34…65
1200 Write
1201 Read
01);
1…32
331);
34…65
1341 Write
1342 Read
01);
1…16
01);
1…16
171);
18…33
171);
18…33
1250
1251
1420
1421
1202
1203
1204
1205
1206
1207
1208
1209
1210
Target position / distance
Speed
Acceleration
Ramp Rise time
Deceleration
Ramp Fall time
Motion mode
Touch-Probe Window
Touch-Probe-Error: Next Motion Block
1211 No. of Repetitions
1212 Delay
1213 Delay: Next Motion Block
1214 Event 1
1215 Event 1: Next Motion Block
1216 Event 2
1217 Event 2: Next motion block
1218 Digital signal 1
1219 Digital signal 2
1247 Digital signal 3
1248 Digital signal 4
PLC function
(Function
Table)
Multiplexer
CANopen®
multiplexer
1260 Interrupt-Event 1
1261 Int.-Event 1: Eval.-Mode
1262 Int. event 1: Next motion block
1263 Interrupt-Event 2
1264 Int.-Event 2: Eval.-Mode
1265 Int. event 2: Next motion block
1343 FT-Instruction
1344 FT-Input 1
1345 FT-Input 2
1346 FT-Input 3
1347 FT-Input 4
1348 FT-Parameter 1
1349 FT-Parameter 2
1350 FT-Target Output 1
1351 FT-Target Output 2
1352 FT-Commentary
1252 Mux Input
1422 CANopen Mux Input
Write
Read
Write
Read
1) When the indexing parameter = 0, all indexes will be written upon parameter
access in EEPROM. 17 (for 16 indexes) or 33 (for 32 indexes) will write all indexes in
RAM.
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ACU Modbus/TCP
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The values are entered automatically in the EEPROM of the controller. However, only
a limited number of write cycles is permissible for the EEPROM (approx. 1 million
cycles). When this number is exceeded, the EEPROM will be destroyed.
 Values which are written cyclically at a high repetition rate should be written to
the RAM and not the EEPROM.
In the RAM, the data is not protected against loss of power. Once power supply is
disrupted, the data must be written again.
NOTE
8.2.1
Example: Writing of index parameters
Typically, index parameters are written regularly during commissioning or in simple
positioning applications.
Writing of Parameter Target position/distance 1202 (Type double word), in Index 1
in RAM ( Index 34 for write access) with parameter value 30000.
Index = 1200 + 0x2000 = 0x24B0, Wert (int) = 34 = 0x0022
Index = 1202 + 0x2000 = 0x24B2, Wert (long) = 30000 = 0x0000 7530
If various parameters of an index are to be edited, it will be sufficient to set index
access via parameter 1200 once at the beginning.
8.2.2
Example: Reading of index parameters
In order to read an index parameter, you will have to set the indexing parameter to
the relevant index first, then you can read the parameter.
Reading of Parameter Target position/distance 1202 (type long), in Index 1 with
parameter value 123000.
Index = 1201 + 0x2000 = 0x24B1, Wert (int) = 1 = 0x0001
Index = 1202 + 0x2000 = 0x24B2, Wert (long) = 123000 = 0x0001 E078
If various parameters of an index are to be read, it will be sufficient to set index
access via 1201 once at the beginning.
10/13
ACU Modbus/TCP
43
9
Example messages Modbus/TCP
This chapter describes some examples of telegrams for Modbus/TCP.
9.1
9.1.1
16-bit access
Function code 3, read 16-bit parameter
Example 1:
Reading of parameter Rated speed 372 (0x0174) in data set 2 from the frequency inverter with address 1.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Func.
Length
00
06
Unit
ID
01
DSet/ParNo.
03
21
Unit
ID
01
Func.
Length
nn
nn
No.
Bytes
02
74
Number of
registers
00
01
Response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
03
Par.value
05
6E
The sent hexadecimal value is 0x056E = Decimal 1390. Parameter Rated speed 372 has no decimal
places. Thus, the rated speed is 1390 min-1.
Example 2:
Reading of parameters Rated speed 372 (0x0174) in dataset 0 of frequency inverter with address set
to 1 and number of registers set to 2 (non-permissible value).
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
06
Unit
ID
01
Func.
Unit
ID
01
Func.
Excep.
83
04
03
DSet/ParNo.
01
74
Number of
registers
00
02
Error response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
03
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
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ACU Modbus/TCP
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9.1.2
Function code 6, write 16-bit parameter
Example 1:
Writing of parameter Rated Mech. Power 376 (0x0178) in dataset 4 of frequency inverter with address 3.
The rated mechanical power is to be set to 1.5 kW. Parameter Rated Mech. Power 376 has one decimal place. Thus the value to be sent is 15 = 0x000F.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Unit
ID
01
Func.
Length
00
06
Unit
ID
01
Func.
Length
00
06
06
DSet/ParNo.
41
78
Par.value
00
0F
Response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
06
DSet/ParNo.
41
78
Par.value
00
0F
The response is the reflected signal of the request message.
Example 2:
Writing of non-permissible value 0 in parameter Rated Mech. Power 376 (0x0178) in dataset 2 of
frequency inverter with address 3.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
06
Unit
ID
03
Func.
Unit
ID
03
Func.
Excep.
86
04
06
DSet/ParNo.
21
78
Par.value
00
00
Error response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
03
The sent exception condition code is the hexadecimal value 0x04 = Error SLAVE device.
10/13
ACU Modbus/TCP
45
9.1.3
Function code 16, write 16-bit parameter
Example 1:
Writing of parameter Rated Mech. Power 376 (0x0178) in dataset 4 of frequency inverter with address 1.
The rated mechanical power is to be set to 1.5 kW. Parameter Rated Mech. Power 376 has one decimal place. Thus the value to be sent is 15 = 0x000F.
Request: Master  frequency inverter
Field
:
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
09
Unit
ID
01
Func.
Unit
ID
01
Func.
10
DSet/
ParNo.
41 78
No. registers
00
01
DSet/
Par.No.
41 78
No. registers
00
01
No.
Byte
02
Par.
value
00 0F
Response: Frequency inverter  Master
Field
:
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
09
10
The response contains the number of written registers
Example 2:
Writing of non-permissible value 0 in parameter Rated Mech. Power 376 0x0178) in dataset 2 of frequency inverter with address 3.
Request: Master  frequency inverter
Field
:
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
09
Unit
ID
03
Func.
10
DSet/
ParNo.
41 78
Func.
Excep.
90
04
No. registers
00
01
No.
Byte
02
Par.
value
00 00
Error response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00
03
Unit
ID
03
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
46
ACU Modbus/TCP
10/13
9.2
9.2.1
32-bit access
Function code 3, read 32-bit parameter
Example 1:
Reading of parameter Fixed Frequency 2 481 (0x01E1) in dataset 1 of frequency inverter with address 1.
Request: Master  frequency inverter
Field:
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Unit
ID
01
Func.
03
DSet/
ParNo.
11
E1
No. registers
00
02
Response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 07
Addi.
Func.
01
03
No.
Bytes
04
Par.value
00
00
03
E8
The sent hexadecimal value is 0x03E8 = Decimal 1000. Parameter Fixed Frequency 2 481 has two
decimal places. Thus, the frequency is 10.00 Hz.
Example 2:
Reading of parameters Fixed Frequency 2 481 (0x01E1) in dataset 0 of frequency inverter with address set to 1 and number of registers set to 1 (non-permissible value).
Request: Master  frequency inverter
Field:
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Unit
ID
01
Func.
Unit
ID
01
Func.
Excep.
83
04
03
DSet/
Par.No.
01
E0
No. registers
00
01
Error response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 03
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
10/13
ACU Modbus/TCP
47
9.2.2
Function code 16, write 32-bit parameter
Example 1:
Writing of parameter Fixed Frequency 3 482 (0x01E2) in dataset 9 (= RAM for dataset 4) of frequency inverter with address 1.
The fixed frequency is to be set to 44.50 Hz. Parameter Fixed Frequency 3 482 has two decimal
places. Thus the value to be sent is 4450 = 0x00001162.
Request: Master  frequency inverter
MBAP
Field: Transaction ID Protocol ID
Unit
Length ID
Hex
00 0B
nn
nn
nn
nn
01
Func. DSet/
No.
No. Par. value
Par.No. regisByte
ters
10
91 E2 00 02 04 00 00 11 62
Response: Frequency inverter  Master
MBAP
Unit
Field: Transaction ID Protocol ID Length ID
Hex
nn
nn
nn
nn
00 0B
01
Func. DSet/
No.
Par.No. registers
10
91 E2 00 02
The response contains the number of written registers
Example 2:
Writing of parameter Fixed Frequency 3 482 (0x01E2) in dataset 9 (= RAM for dataset 4) of frequency inverter with address 1.
The frequency is to be set to 2000.00 Hz (non-permissible value). Parameter Fixed Frequency 3 482
has two decimal places. Thus the value to be sent is 20000 = 0x00030D40.
Request: Master  frequency inverter
MBAP
Unit Func. DSet/
Field: Transaction ID Protocol ID Length ID
Par.No.
Hex
nn
nn
nn
nn
00 0B
01
10
91
E2
No.
No.
Par. value
regis- Byte
ters
00 02 04 00 03 0D 40
Error response: Frequency inverter  Master
Field:
Hex
MBAP
Unit Func.
Transaction ID Protocol ID Length ID
nn
nn
nn
nn 00 03 01
90
Excep.
04
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
48
ACU Modbus/TCP
10/13
9.2.3
Function code 100 (=0x64), read 32-bit parameter
Example 1:
Reading of parameter Fixed Frequency 2 481 in dataset 0 of frequency inverter with address 1.
Request: Master  frequency inverter
Field
:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 04
Unit ID
Func.
01
64
Unit ID
Func.
01
64
DSet/
Par.No.
01 E1
Response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Par. value
00
00
03
E8
The sent hexadecimal value is 0x000003E8 = 1000. Parameter Fixed Frequency 2 481 has two decimal places. Thus, Fixed Frequency 2 = 10.00 Hz.
Example 2:
Reading of unknown parameter 1600 (0x0640) in dataset 2 of frequency inverter with address 1.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Unit ID
Protocol ID Length
nn
nn 00 04
01
Func.
64
DSet/
Par.No.
26 40
Unit ID
Func.
Excep.
01
E4
04
Error response: Frequency inverter  Master
Field:
Hex
MBAP
Transaction ID Protocol ID Length
nn
nn
nn
nn 00 03
The exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
10/13
ACU Modbus/TCP
49
9.2.4
Function code 101 (=0x65), write 32-bit parameter
Example 1:
Writing of parameter Rated Frequency 375 (0x0177) in dataset 2 of frequency inverter with address
1.
The Rated Frequency is to be set to 10.00 Hz. Parameter Rated Frequency 375 has two decimal places. Thus the value to be sent is 1000 = 0x03E8.
Request: Master  frequency inverter
Field:
Hex
MBAP
Protocol
Transaction ID
ID
nn
nn
nn nn
Length
00
08
Unit
ID
Func.
DSet/
Par.No.
Par. value
01
65
21
00
Unit
ID
Func.
DSet/
Par.No.
Par. value
01
65
21
00
77
00
03
E8
Response: Frequency inverter  Master
Field:
Hex
MBAP
Protocol
Transaction ID
ID
nn
nn
nn nn
Length
00
08
77
00
03
E8
The response is the reflected signal of the request message.
Example 2:
Writing of non-permissible value 9.00 Hz in parameter Rated Frequency 375 in dataset 2 of frequency
inverter with address 1.
Parameter Rated Frequency 375 has 2 decimal places. Thus the value to be sent is 900 = 0x0384.
Request: Master  frequency inverter
Field:
Hex
MBAP
Protocol
Transaction ID
ID
nn
nn
nn nn
Length
00
08
Unit
ID
Func.
01
65
DSet/
Par.No.
Par. value
21
00
77
00
03
84
Error response: Frequency inverter  Master
Field:
Hex
MBAP
Transaction ID Protocol ID Length
nn
nn
nn
nn 00 03
Unit ID
Func.
Excep.
01
E5
04
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
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ACU Modbus/TCP
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9.2.5
Function code 8, diagnosis
Example 1a:
Deleting of all diagnosis counters (sub-function 0x0A) in frequency inverter with address 1.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Unit ID
Func.
01
08
Unit ID
Func.
01
08
Sub-function
00
0A
Data
00
00
Response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Sub-function
00
0A
Data
00
00
The response is the reflected signal of the request message. All counters are set to zero.
Example 1b:
With all counters set to zero, reading of diagnosis counter 4 “Slave Messages Counter” (sub-function
0x0E) of frequency inverter with address 1.
Request: Master  frequency inverter
MBAP
Transaction ID Protocol ID Length
Hex
nn
nn
nn
nn
00 06
Response: Frequency inverter  Master
Field:
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Unit ID
Func.
01
08
Unit ID
Func.
01
08
Sub-function
00
0E
Data
00
Sub-function
00
0E
00
Data
00
01
Counter value is 1 because this is the first message received after resetting of all counters to zero.
Example 2:
Reading of unknown diagnosis counter 8 (sub-function 0x13) of frequency inverter with address 1.
Request: Master  frequency inverter
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 06
Unit ID
Func.
Sub-function
01
08
00
Unit ID
Func.
Excep.
01
88
01
13
Data
00
00
Error response: Frequency inverter  Master
Field:
Hex
Transaction ID
nn
nn
MBAP
Protocol ID
nn
nn
Length
00 03
The sent exception condition code is the hexadecimal value 0x01 = INVALID FUNCTION CODE.
10/13
ACU Modbus/TCP
51
10 Motion Control Interface (MCI) / Motion Control Override (MCO)
The Motion Control Interface (MCI) is a defined interface of the ACU device for positioning control via Field Bus. Typically, this interface is used by field bus systems such as
CANopen®. With the Motion Control Interface, the user can carry out a positioning operation via a field bus using a positioning profile typically including the target position,
speed, acceleration, deceleration, quick stop and mode-specific information.
In the case of Modbus/TCP communication, MCI cannot be used directly. Instead, positioning is performed via MCO (Motion Control Override), see Chapter 10.1 “Motion Control Override”.
The Motion Control Interface uses parameter Override Modes Of Operation 1454 for
switching between the different modes.
The supported modes as per CANopen® Standard DS402 are:
• 1 – Profile Position mode
• 2 – Velocity mode [rpm]
• 3 – Profile Velocity mode [u/s]
• 6 – Homing
• 7 – Interpolated mode (not available when MCO is used)
• 8 – Cyclic sync position mode (not available when MCO is used)
• 9 – Cyclic sync velocity mode (not available when MCO is used)
Bonfiglioli Vectron specific mode
• -1 (or 0xFF) – Table Travel record mode
• -2 (or 0xFE) – Move Away from Limit Switch
• -3 (or 0xFD) – Electronic Gear: Slave (electronic gear as slave)
The mode of operation can be switched in any operating state.
It is recommended that running movements be stopped by the PLC first, then, switch
the mode of operation using Override Modes Of Operation 1454 and restart in the
new mode.
In order to use the Motion Control Interface, Local/Remote 412 = “1 - Control via
statemachine” must be set. In configurations without positioning control (Configuration
30 ≠ x40), only velocity mode is available.
For a description of the positioning parameters, please refer to the “Application manual
- Positioning”.
52
ACU Modbus/TCP
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10.1
Motion Control Override
The Motion Control Override feature can be used for specifying a travel profile via serial
communication (VABus or Modbus as well as VABus/TCP or Modbus/TCP). This enables
testing a travel profile in the VPlus user software for Windows when the controller has
not been programmed completely yet. This function can also be used as a simulation
mode.
The Function Motion Control Override does not support the following modes:
• Interpolated Mode.
• Cyclic Synchronous Position Mode
• Cyclic Synchronous Velocity Mode
No.
1454
1455
1456
1457
1458
1459
1460
Parameters
Description
Override Modes Of Operation
Override Target Position
Override Profile Velocity
Override Acceleration
Override Deceleration
Override Target Velocity vl [rpm]
Override Target Velocity pv [u/s]
Settings
Min.
Max.
Factory setting
Selection
0
-231-1…231-1 u
-1 u
-1…231-1 u/s
-1 u/s
-1…231-1 u/s²
-1 u/s²
-1…231-1 u/s²
-1 u/s²
-32768…32767 rpm
-1 rpm
31
31
-2 -1…2 -1 u/s
-1 u/s
Based on the default settings of the Motion Control Interface (parameters P.1292…
P.1297), the override parameters and CANopen® objects are used as follows:
1454
1455
1456
1457
1458
1459
1460
Override Modes Of Operation
Override Target Position
Override Profile Velocity
Override Acceleration
Override Deceleration
Override Target Velocity vl [rpm]
Override Target Velocity pv [u/s]
or
or
or
or
or
or
or
0x6060 Modes of Operation
0x607A Target Position
0x6081 Profile Velocity
0x6083 Profile Acceleration
0x6084 Profile Deceleration
0x6042 Target Velocity
0x60FF Target Velocity
With the default settings “-1” in parameters P.1455… P.1460 and “0” in parameter
Override Modes Of Operation 1454 the values of the Motion Control from the links of
parameters P.1292… P.1297 are used. If the parameter settings deviate from the
factory settings, the value of the relevant parameter will be used. It is possible to define certain ranges of the trajectory via the override function and other values via the
Motion Control Interface.
Target position “-1 u” cannot be approached because Override Target Position 1455 =
-1 deactivates the override feature.
10/13
ACU Modbus/TCP
53
Depending on the selected mode of operation, various objects and parameters are
used. The various objects and parameters must be set specifically for the different
modes of operation.
Use of “Deceleration” and “Quick Stop” depends on the modes of operation, control
commands and behavior in the case of communication errors (see Bus Error Behaviour 388).
The following tables provide an overview of the different objects and parameters. The
object / parameter mentioned first in a cell will typically be used. If an object is related
to a parameter, the parameter will be specified.
The following tables show the available modes of Operation using the Motion Control
Override.
Mode
1454 Over-
Homing
Velocity Mode
Profile Velocity Mode
6
2
3
1132 & 1133
Fast speed / Creep speed
418 Minimum frequency
419 Maximum Frequen-
1459 Override Target
1460 Override Target Ve-
Velocity vl [rpm]
418 Minimum frequency
419 Maximum Frequency
420 Acceleration
(clockwise)
422 Acceleration anticlockwise
421 Deceleration
(clockwise)
423 Deceleration anticlockwise
424 Emergency stop
clockwise
425 Emergency stop
anticlockwise
locity pv [u/s]
418 Minimum frequency
419 Maximum Frequency
ride Modes
Of Operation
Target position
Speed
Limitation3)
cy
Acceleration
Deceleration
1134 Acceleration
1134 Acceleration
Emergency
stop 2)
1179 Emergency stop
Homing
Method
1130 Homing type
Quick Stop
ramp
1457 Override Accelera-
tion
1458 Override Decelera-
tion
1179 Emergency stop ramp
1) The limitation results from Minimum frequency 418 and Maximum Frequency 419. Through Limitation 1118 of the position controller in Configuration x40, an increase above the Maximum Frequency can occur, because the output of the position controller is added to the Maximum Frequency.
2) Emergency stop or Deceleration is used depending on the stopping behavior Mode of operation 630 or the behavior in the case of communication errors Bus Error Behaviour 388.
54
ACU Modbus/TCP
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Mode
1454 Override Modes
Profile Positioning mode
1
Of Operation
Target position
1455 Override Target Position
Speed
Acceleration
1456 Override Profile Velocity
418 Minimum frequency
419 Maximum Frequency
1456 Override Acceleration
Deceleration
1458 Override Deceleration
Limitation3)
Emergency stop
Quick Stop
4)
1179 Emergency stop ramp
1) The limitation results from Minimum frequency 418 and Maximum Frequency 419. Through Limitation 1118 of the position controller in Configuration x40, an increase above the Maximum Frequency can occur, because the output of the position controller is added to the Maximum Frequency.
2) Emergency stop or Deceleration is used depending on the stopping behavior Mode of operation 630 or the behavior in the case of communication errors Bus Error Behaviour 388.
10/13
ACU Modbus/TCP
55
Mode
1454 Over-
Table travel record
mode
Move away from limit
switch
255
Electronic gear - Slave
254
253
1460 Override Target Ve-
ride Modes
Of Operation
Target position
1202 Target position
Speed
1203 Speed
Limitation3)
418 Minimum frequency
419 Maximum Frequen-
1132 Fast speed
1133 Creep speed
418 Minimum frequency
419 Maximum Frequen-
cy
cy
Acceleration
1204 Acceleration
1134 Acceleration
Deceleration
1205 Deceleration
1134 Acceleration
Emergency
stop 4)
1179 Emergency stop
1179 Emergency stop
ramp
ramp
Motion block
Selected via control word
locity pv [u/s]
418 Minimum frequency
419 Maximum Frequency
1457 Override Accelera-
tion
1458 Override Decelera-
tion
Quick Stop
1179 Emergency stop ramp
1123 Gear factor Numera-
Gear factor
tor
1124 Gear factor denomi-
nator
Phasing
5)
1125 Phasing: Offset
1126 Phasing: Speed
1127 Phasing: Accelera-
tion
1) The limitation results from Minimum frequency 418 and Maximum Frequency 419. Through Limitation 1118 of the position controller in Configuration x40, an increase above the Maximum Frequency can occur, because the output of the position controller is added to the Maximum Frequency.
2) Emergency stop or Deceleration is used depending on the stopping behavior Mode of operation 630 or the behavior in the case of communication errors Bus Error Behaviour 388.
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ACU Modbus/TCP
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Relationships between objects, parameters and conversions
Velocity [vl]  Velocity mode [rpm]
Velocity [pv]  Profile Velocity mode [u/s]
The graphical overview shows the most important objects which are used. Other objects are available in the different modes; for additional information, refer to the descriptions of the objects and modes.
10/13
ACU Modbus/TCP
57
10.2
Functions of Motion Control Interface (MCI)
Via the Motion Control Interface, numerous positioning functions can be addressed by
a PLC directly.
10.2.1
Reference system
In many modes, the Motion Control Interface uses user units [u]. These user units [u]
result from the conversion of the gear factor parameters and the No. of pole pairs 373.
Conversion between “user units” [u] and frequencies [Hz]
f
No.of pole pairs 373 ⋅ Gear Box : Driving shaft revolutions 1116
  Feed Constant 1115 [u ] ⋅ Gear Box : Motor shaft revolutions 1117
U
[Hz] = v  us  ⋅
Feed Constant 1115
v
[u ] ⋅ Gear Box : Motor shaft revolutions 1117
 u  = f [Hz ] ⋅
U
 s 
No.of pole pairs 373 ⋅ Gear Box : Driving shaft revolutions 1116 ⋅
Feed Constant 1115
Gear Box: Shaft revolutions 1116
Gear Box: Motor revolutions 1117
The same formulas can be used for converting acceleration values from a[Hz/s] to
a[u/s²] and vice versa. In the formulas, replace speeds f[Hz] and f[u/s] by accelerations a[Hz/s] and a[u/s²].
For more details about the reference system, refer to the “Positioning” application manual.
10.2.2
Modes of operation
In Override Modes Of Operation 1454, you can define the operation mode of the frequency inverter.
The available options depend on the set frequency inverter configuration.
Available values for Override Modes Of Operation 1454 in configurations of the frequency inverter with position control (Parameter Configuration 30 = x40):
1
2
3
6
255
(-1)
254
(-2)
253
(-3)
–
–
–
–
Modes of operation
Profile position mode
Velocity mode [rpm](factory setting)
Profile velocity mode [u/s]
Homing mode
– Table travel record mode (manufacturer-specific mode of operation)
– Move away from limit switch (manufacturer-specific mode of operation)
– Electronic Gear: Slave (manufacturer-specific mode of operation)
Usable values for Modes of operation in frequency inverter configurations without positioning control (Parameter Configuration 30 ≠ x40):
Modes of operation
2 – Velocity mode [rpm]
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ACU Modbus/TCP
10/13
10.2.3
Current position and contouring errors
Parameter Act. Position 1108 returns the actual position in user units.
Parameter Act. Contouring Error 1109 returns the actual contouring error.
The contouring error can be monitored internally in order to trigger a device error once
a threshold is reached. For details on parameters Fault Reaction 1120, Warning
Threshold 1105, Error Threshold 1106 and Contouring Error Time 1119, refer to
application manual “Positioning”.
10.2.4
Target window
The target window monitors the current position after completion of a positioning
operation. A positioning operation is complete as soon as the current position is in
the target window. Via parameter Target Window 1165, you can define as from
which distance from the target position the signal "Target Reached" is set. This setting is valid both for the positive and negative direction.
If the parameter value is set to 0, the operation will be complete as soon as the
Position reference value reaches the target position. For the Position reference value
an internal value is used, that is calculated anew depending on the profile data for
each internal cycle step.
Via parameter Target Window Time 1166, you can define how long the axis must
be in the target window before "Target Reached" is signaled.
Parameter
No.
Description
1165 Target Window
1166 Target Window Time
Min.
0u
1 ms
Setting
Max.
220 u
65 535 ms
Fact. sett.
182 u
1 ms
The size of the target window affects the automatic sequence of motion blocks because the positioning operation requires a higher precision in the case of a small
target window (small tolerance). The following motion block is started when the
target window is reached.
10/13
ACU Modbus/TCP
59
10.2.5
Position Controller
The position controller evaluates the positioning operation (target/actual position)
and tries to control the drive such that it comes as close as possible to the specifications. For this purpose, an additional frequency is calculated for compensation of
position deviations. By setting the corresponding parameter, this frequency can be
limited. The parameter settings of the position controller determine how quick and
to what extent position deviations are to be compensated.
Via Time Constant 1104, you can define the maximum time in which the position
deviation is to be compensated.
Via parameter Limitation 1118, you can define to which value the speed is limited
for compensation of the position deviation.
No.
Parameters
Description
1104 Time Constant
1118 Limitation
1)
2)
Settings
Max.
Min.
0.00 ms
300.00 ms
0 u/s
231-1 u/s
Factory setting
10.00 ms 1)
100.00 ms 2)
327 680 u/s
Factory parameter setting Configuration 30 = 240 or 540
Factory parameter setting Configuration 30 = 440
Example:
Position deviates by 1 motor shaft revolution, time constant is set to 1 ms. The position controller will increase the motor frequency by 1000 Hz in order to compensate
the position deviation. Parameter Limitation 1118 must be set accordingly.
Controller block diagram
In order to avoid oscillations of the drive while it is at standstill, amplification is reduced to 50 % of the parameterized value for small position deviations.
Amplification [%]
100
50
-0.50 -0.25
60
0.00
0.25
ACU Modbus/TCP
0.50
Control deviation
of position [°]
10/13
The following behavior may indicate that the controller parameters are not configured properly:
drive is very loud
drive vibrates
frequent contouring errors
inexact control




For the setting options of other control parameters, e.g. speed controller and acceleration pilot control, refer to the operating instructions of the frequency inverter.
Optimize the settings in actual operating conditions, as control parameters for speed
controller and acceleration pilot control depend on actual load. Optimize with different load types to obtain a good control behavior in all situations.
10.2.6
Homing
When the drive is started, a defined starting position must be identified for absolutevalue positioning. In a homing operation, the point of reference of the positioning
operation is determined. All positioning data relates to this point of reference. Once
the homing operation is started, the drive moves until it reaches a home switch or
limit switch and stops there. The limit switches limit the motion path. The direction of
movement (search direction) at the start of the homing operation is defined by the
homing mode. Once the limit switches are reached, the direction of rotation of the
drive will be reversed, depending on the selected homing mode. The Limit switches
can also be used as a reference for homing. For a list of homing modes, refer to chapter "List of Homing Modes".
Relative positioning and moving in velocity mode is possible without homing.
Homing can be started:
•
•
•
1)
via a digital input
by a control word via system bus or field bus 1)
automatically before the start of a motion block positioning operation
Extension module with system bus or field bus interface required
If an absolute value encoder with an absolute value encoder module (e.g. EM-ABS-01)
is used, homing is not required when power supply is turned on. This is defined by
parameter Operation Mode 1220.
For more details about the homing function, refer to the “Positioning” application
manual.
10.2.6.1 Start position after homing
After homing:
Initial Position 1185 = -1  Drive stops at “stopped” position.
Initial Position 1185 ≠ -1  Drive will be moved actively to the set position.
10.2.6.2 Flying homing
Flying homing can be used in order to update the home position during positioning
operations. For a description of this function, refer to the application manual “Positioning”.
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ACU Modbus/TCP
61
10.2.7
Move away from Hardware limit switches
When a hardware limit switch is triggered, an error message will be triggered depending on the settings of parameter Fault reaction 1143 and the relevant direction of
rotation will be disabled.
After an error reset, it is possible to move in the direction that is still enabled. Generally, any mode of operation can be used for clearing, as long as the travel command has
the enabled direction.
As long as the limit switch is triggered, the limit switch warning in the status word and
actual value parameters Warnings 269, Warnings Application 273 and Controller
status 275 will remain. Once the limit switch is cleared, the warning will be deleted in
the status word and actual value parameters.
For simple clearing of the limit switches, you can use mode “-2 Clear limit switch” (see
Chapter 11.4.6 “Move away from limit switch mode”).
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ACU Modbus/TCP
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11 Control of frequency inverter
The frequency inverter can generally be controlled via three operation modes. The
operation modes can be selected via the data set switchable parameter Local/Remote
412.
No.
Parameters
Description
412 Local/Remote
Min.
0
Settings
Max.
Factory setting
44
44
For operation with CANopen®, only operation modes 0, 1 and 2 are relevant. The other
settings refer to the control option via the control unit.
Operation mode
Control via
0 -contacts
(Chapter 11.1)
Control via
state machine
1(Chapters 11.1.1,11.3,
11.4)
Control via
2 -remote contacts
(Chapter 11.1)
Function
The Start and Stop commands as well as the direction of
rotation are controlled via digital signals.
The frequency inverter is controlled via the control word.
Only this setup supports positioning functions via
the control word and modes of operation.
The Start and Stop commands as well as the direction of
rotation are controlled via virtual digital signals of the
control word.
Parameter Local/Remote 412 is dataset switchable, i.e. you can switch between the
different operation modes by selecting another data set. For example, a frequency
inverter can be controlled via the bus, and emergency mode can be activated locally
when the bus master fails. This switch-over is also identified by the status word (remote bit).
Data set switching can be effected locally via control contacts at the digital inputs of
the frequency inverter or via the bus. For data set switching via the bus, parameter
Data set selection 414 is used.
No.
Parameters
Description
414 Data set selection
Min.
0
Settings
Max.
Factory setting
4
0
With Data set selection 414 = 0, data set switching via contact inputs will be active. If
Data set selection 414 is set to 1, 2, 3 or 4, the selected data set is activated and data
set switching via the contact inputs is deactivated.
If Data set selection 414 is set to 5, data set switching via contact inputs will be active
if the frequency inverter is not enabled.
Via parameter Active Data Set 249, the currently selected data set can be read. Active Data Set 249, indicates the Active Data Set (value 1, 2, 3 or 4). This is independent of whether the data set switching was done via contact inputs or Data set selection 414.
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63
11.1
Control via contacts/remote contacts
In operation mode “Control via contacts" or “Control via remote contacts” (Parameter
Local/Remote 412 = 0 or 2), the frequency inverter is controlled directly via digital
inputs S1IND (STOA and STOB), S2IND through EM-S3IND or via the individual bits of
the virtual digital signals in the control word. The function of these inputs is described
in the frequency inverter user manual.
Control word (Local/ R em ote 412 = 2)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit
0
S1IND (=STOA and STOB)
1
S2IND
2
S3IND
3
S4IND
4
S5IND
5
S6IND
6
MFI1D
7
EM-S1IND
8
EM-S2IND
9
EM-S3IND
10
-
11
-
12
-
13
-
14
-
15
-
The digital inputs set via the control word can be monitored using parameter Digital
Inputs 250. Digital input S1IND will only be displayed if controller release is switched
on at STOA and STOB and the control word (Bit 0) was set. If the data set switching
function is used, please ensure that Parameter Local/Remote 412 is set to “2 – Control via remote contacts” is set in all data sets used.
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ACU Modbus/TCP
10/13
15 14 13 12 11 10 9
8
7
6
Status word
5 4 3 2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low active)
6
Switch on disabled
7
Warning
8
-
9
Remote
10
Target reached
11
Internal limit active
12
-
13
-
14
-
15
Warning 2
If operation mode “Control via remote contacts” is used, controller release must be
turned on at STOA (Terminal X210A.3) and STOB (Terminal X210B.2) and Bit 0 of the
control word must be set in order to be able to start the drive.
Operation modes “Control via contracts” and “Control via remote contacts” only support modes of operation = “velocity mode”.
ACTIVE CUBE frequency inverters support an external 24 V power supply for the frequency inverter control electronics. Even when mains voltage is disconnected, communication between the controller (PLC) and the frequency inverter is still possible.
Bit 4 “Power supply – enabled” of the status word shows the current mains power
supply status:
Bit 4 “Power supply – enabled” = 0 signals “No mains voltage”, starting of drive not
possible.
Bit 4 “Power supply – enabled” = 1 signals “Mains voltage on”, drive ready for starting.
10/13
ACU Modbus/TCP
65
11.1.1
Device state machine
State machine:
1
not ready to
switch on
0x00
4
switched on
0x23
8
fault
0x08
stop drive
start drive
Status word
Switched on
Operation enabled
Fault
quitt fault
5
operation
enabled
0x37
Bit 5
1
1
x
Bit 4
0
1
x
Bit 3
0
0
1
Bit 2
0
1
x
Bit 1
1
1
x
Bit 0
1
1
x
“x” means any value.
Bit 7 “Warning” can display a device-internal warning message at any time. The current warning is evaluated by reading the warning status with parameter Warnings 270.
Bit 10 “Target reached” is set when the specified reference value is reached. In the
special case of power failure regulation, the bit is also set when the power failure regulation reaches the frequency 0 Hz (see frequency inverter Operating Instructions).
For "Target reached“, there is a hysteresis (tolerance range) which can be set via the
parameter Max. control deviation 549 see frequency inverter operating instructions).
Bit 11 “Internal limit value active” indicates that an internal limit is active. This
may be the current limit, the torque limit or the overvoltage control. All functions will
result in the reference value being left or not reached.
Bit 15 “Warning 2” signals a critical operating state which will result in a fault switchoff of the frequency inverter within a short time. This bit is set if there is a delayed
warning relating to the motor temperature, heat sink/inside temperature, Ixt monitoring or mains phase failure.
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ACU Modbus/TCP
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11.2
Control via state machine
In the operation mode “Control via state machine (Local/Remote 412 = 1), the frequency inverter is addressed via the control word of the state machine.
Transition 4 to status “Operation enabled” is only possible:
− If, in a configuration for positioning control (parameter Configuration 30 = x40),
the controller release is set via STOA and STOB,
− If, in other configurations (parameter Configuration 30 ≠ x40) the controller
release is set via STOA and STOB and if one of the digital inputs S2IND or S3IND
is set. (Typically: S2IND = Start clockwise/S3IND = Start anticlockwise)
Parameter Control word 410 is applicable to the frequency inverter if parameter Local/Remote 412 is set to “1 – Control via statemachine”.
15 14 13 12 11 10 9
8
7
Control word
6 5 4 3 2
1
0 Bit
0
Switch on
1
Enable voltage
2
Quick stop (Low active)
3
Enable operation
4
Operation mode specific
5
Operation mode specific
6
Operation mode specific
7
Fault reset
8
Halt
9
Operation mode specific
10
-
11
Manufacturer specific
12
Manufacturer specific
13
Manufacturer specific
14
Manufacturer specific
15
Manufacturer specific
Bits 9 … 15 are used depending on the configuration and on Mode of Operation.
Control word bits 4, 5, 6 operation mode specific and bit 8 halt are used in motion
control configurations (Parameter Configuration 30 = x40) only.
The actual value parameter Status word 411 shows the current operating status.
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67
15 14 13 12 11 10 9
8
7
6
Status word
5 4 3 2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low active)
6
Switch on disabled
7
Warning
8
Manufacturer specific
9
Remote
10
Target reached
11
Internal limit active
12
Operation mode specific
13
Operation mode specific
14
Manufacturer specific
15
Manufacturer specific
Warning 2
Bit 14 is not used.
Status word bits 12 and 13 “Operation mode specific” are only used in positioning control configurations (Parameter Configuration 30 = x40).
ACTIVE CUBE frequency inverters support an external 24 V power supply for the inverter control electronics. Even when mains voltage is disconnected, communication
between the controller (PLC) and the frequency inverter is still possible.
Bit 4 “Voltage enabled” of the status word shows the current mains power supply status:
Bit 4 Voltage enabled” = 0 signals “No mains voltage”, starting of drive not possible.
Bit 4 “Voltage enabled” = 1 signals “Mains voltage on”, drive ready for start.
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ACU Modbus/TCP
10/13
11.2.1
Statemachine diagram
State machine:
10/13
ACU Modbus/TCP
69
Control word:
The device control commands are triggered by the following bit patterns in the status
word.
Control word
Bit 7
Bit 3
Fault reset Enable
operation
Command
Shutdown
X
Switch on
X
Enable operation
X
Disable voltage
X
Quick stop
X
(Low active)
Disable operation
X
01
Fault reset
“X” means any value.
Bit 2
Quick
stop
(Low
active
Bit 1
Bit 0
Enable
voltage
Switch
on
Transitions
X
0
1
X
X
1
1
1
X
0
1
1
1
0
1
0
1
1
X
X
2, 6, 8
3
4
7, 9, 10, 12
7, 10, 11
0
x
1
x
1
x
1
x
5
15
Transition 3 (command “Switch On” [0x07]) will only be processed if Bit 4 “Voltage
enabled” of the Status word is set.
Transition 4 (Command “Enable operation” [0xF]) will only be processed if the release
is set via the hardware contacts STO.
If the hardware release via STO is not set, the frequency inverter will remain in status
“Switched On” [0x33] until the hardware release via STO is present.
In status “Operation enabled” [0x37], the device will switch to status “Switched On”
[0x33] internally once the hardware release via STO is reset.
In configurations with Motion Control (parameter Configuration 30 = x40), the following must be noted:
• Transition 4’ is not available.
• In status “5-Operation enabled [0x37]” an additional start signal must be provided
via bits from the “High Byte” of the control word in order to start a movement of
the motor. For a description of the start signal for this “Motion Control Interface”
(MCI), refer to Chapter 11.4. Parameter Override Modes Of Operation 1454 is
available for switching to other MCI modes.
• Digital inputs (STOA and STOB) must be set. Start clockwise and Start anticlockwise have no function in these configurations.
In configurations without Motion Control (parameter Configuration 30 ≠ x40), the
following must be noted:
• Transition 4’ will only be processed if Bit 4 “Voltage enabled” of the status
word is set. This feature is downward-compatible with older software versions.
• The frequency inverter can only be controlled if the logic operation is true.
The logic inputs for Start Clockwise and Start anticlockwise can be connected
directly with “On” or “Off” (parameter Start Clockwise 68 and Start Anticlockwise 69).
Digital inputs (STOA and STOB) must be set.
This results in:
Release: (= STOA and STOB) AND (Start clockwise OR Start Anticlockwise)
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ACU Modbus/TCP
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Status word:
The status word indicates the current operating state.
Status word
Bit 6
State
Switch on disabled
Ready to switch on
Switched on
Operation enabled
Quick stop active
Fault reaction active
Fault
“X” means any value.
Switch on
disabled
1
0
0
0
0
0
0
Bit 5
Bit 3
X
1
1
1
0
X
X
0
0
0
0
0
1
1
Quick
Fault
stop (Low
active)
Bit 2
Bit 1
Operation
enabled
Switched
on
0
0
0
1
1
1
0
0
0
1
1
1
1
0
Bit 0
Ready to
switch on
0
1
1
1
1
1
0
Bit 7 “Warning” can be set at any time. It reports a device-internal warning. The
cause of the warning is evaluated by reading the warning status with parameter
Warnings 270.
Bit 9 “Remote” is set if the operation mode is set to “Control via state machine” (Local/Remote 412 = 1) and controller release is turned on.
Bit 10 “Target reached” is set when the specified reference value is reached.
In configurations without Motion Control (parameter Configuration 30 ≠ x40) “Target
reached” refers to the reference speed from OUT-PZD2. In the special case of power
failure regulation, the bit is also set when the power failure regulation reaches the
frequency 0 Hz (see frequency inverter operating instructions).
For "Target reached“, there is a hysteresis (tolerance range) which can be set via the
parameter Max. control deviation 549 see frequency inverter Operating Instructions).
Bit 11 “Internal limit value active” indicates that an internal limit is active. This
may be the current limit, the torque limit or the overvoltage control. All functions will
result in the reference value being left or not reached.
Bit 15 “Warning 2” signals a critical operating state which will result in a fault switchoff of the frequency inverter within a short time. This bit is set if there is a delayed
warning relating to the motor temperature, heat sink/inside temperature, Ixt monitoring or mains phase failure.
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71
11.3
Configurations without Motion Control
In configurations without positioning control (Configuration 30 ≠ x40) Override
Modes Of Operation 1454 is set permanently to “2 - velocity mode”. This setting
cannot be changed.
Relevant parameters:
410
411
1459
240
418
419
420
422
421
423
424
425
Control word
Status word
Override Target velocity vl [rpm]
Actual speed
Minimum Frequency
Maximum Frequency
Acceleration (Clockwise)
Acceleration Anticlockwise
Deceleration (Clockwise)
Deceleration Anticlockwise
Emergency Stop Clockwise
Emergency Stop Anticlockwise
The ramp times are specified via parameters 430…433.
11.3.1
Behavior in the case of a quick stop
In quick stop, the parameters Switch-Off Threshold 637 (percent of parameter Maximum Frequency 419) and Holding time 638 (holding time after falling short of the
Switch-Off Threshold) are relevant. Maximum Frequency. In the case of a quick stop,
the drive is stopped via emergency stop ramps.
The emergency stop ramps are set via parameters Emergency Stop Clockwise 424
and Emergency Stop Anticlockwise 425 .
fs
Start Quick Stop
Emergency Stop Clockwise 424
Emergency Stop Anticlockwise 425
Holdig Time Stop Function 638
Switch-off Threshold Stop Fct. 637
OFF
t
change of state
If frequency/speed reaches the value zero during the switch-off time, the drive continues to be supplied with current until the switch-off time has elapsed. This ensures
that the drive is at a standstill when the state changes.
The quick stop behavior is only relevant for configurations without Motion Control
(parameter Configuration 30 ≠ x40).
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11.3.2
Behavior in the case of transition 5 (disable operation)
The behavior in transition 5 from “Operation enabled” to “Switched On” can be configured via parameter State transition 5 392.
No.
Parameters
Description
392 State transition 5
Operation mode
0 -Coast to stop
1 -DC brake
2 -Ramp
Min.
0
Settings
Max.
Factory setting
2
2
Function
Immediate transition from “Operation enabled” to
“Switched On”, drive coasts to a standstill
Activation of DC brake, at the end of DC deceleration,
there is the change from “Operation enabled” to
“Switched On”
Transition with normal ramp, when the drive has come to
a standstill, there is the change from “Operation enabled”
to "Switched On"
Setting 1 “Direct current brake” is only possible with applications with U/f characteristic control (e.g. configuration 110). Other configurations do not support this operation
mode.
If the frequency inverter is operated with a configuration which does not support the
operation mode Direct Current Brake (e.g. configuration 210, field-oriented control),
value "1" cannot be used.
In this case, the operation mode is not offered in the selection menus of the control
unit KP500 and the control software VPlus.
By default, State-transition 5 392 is set to operation mode “2 - Ramp” For configurations with torque control, the default value is “0 – coast to stop”.
If the configuration is changed, the value set for State-transition 5 392 is also
changed, if necessary.
The behavior in transition 5 is only relevant for configurations without Motion Control
(parameter Configuration 30 ≠ x40).
If State-transition 5 392 was triggered with “1 - DC brake”, a new control word will
only be accepted after completion of the transition process. The change of state from
“Operation enabled” to “Started” is done after the Braking time 632 parameterized
for the DC brake has elapsed.
If parameter State-transition 5 392 = “2 - Ramp” is set, the control word can be set
to “Operation enabled” again, while the drive is decelerating. In this way, the drive
accelerates to its set reference value again and remains in the state “operation enabled”.
The change of state from “Operation enabled” to “Switched On” is done after the value has dropped below the set Switch-Off Threshold and the set holding time has
elapsed (equivalent to the behavior in the case of a quick stop). In this context, parameters Switch-Off Threshold stop function 637 (percentage of parameter Maximum Frequency 419) and Holding time 638 (Holding time after passing of threshold)
are relevant.
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73
11.3.3
Reference value/actual value
Depending on the settings of Local/Remote as well as Modes of Operations, the controller (PLC) can define the reference frequency for the frequency inverter via parameter Reference frequency RAM [Hz] 484 or Override Target Velocity vl [rpm] 1459
and receive the actual value via parameter Actual speed 240.
The use of the reference/actual value channel depends on the set configuration (control method). The actual value is generated according to the control method use.
The reference value in parameter Override Target Velocity vl [rpm] 1459 and the
actual value in parameter Actual speed 240 are interpreted as values with unit [min1]
. Conversion into a frequency value (reference value) or from a frequency value (actual value) is performed in the frequency inverter.
The entry for parameter Reference frequency RAM [Hz] 484 is done in [Hz] directly.
The reference value for the frequency inverter from parameter Reference frequency
RAM [Hz] 484 or Override Target Velocity vl [rpm] 1459 is connected to the reference line value. This reference value will be combined with the internal reference value from the reference frequency channel and directed to the ramp. For information on
the reference frequency channel, refer to the operating instructions of the frequency
inverter.
ramp set point
operation mode 434
refer to note
internal
set point
0
1
frequency
ramp
fmin
line
set point
+
fmax
Reference percentage 524 can be used for regular changing of reference percentages, e.g. as a reference value for technology controllers or as a reference torque.
No.
Parameters
Description
Min.
434 Ramp Setpoint
484 Reference frequency RAM [Hz]
524 Reference percentage RAM [%]
Operation mode 434
Internal reference fre1quency
2 -Reference line value
3 -Internal reference frequency + reference line
value
1
-999.99
-300.00
Settings
Max.
Factory setting
3
3
999.99
0.00
300.00
0.00
Function
The internal reference frequency is determined from
the reference frequency channel.
The reference value is supplied externally via the bus
Addition (considering the sign) of internal reference
frequency and reference line value
This function is only relevant in the case of configurations without positioning control
(parameter Configuration 30 ≠ x40).
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ACU Modbus/TCP
10/13
If Ramp Setpoint 434 = 2 (reference line value only), this reference line value is limited to fmin.
The sign in front of fmin with reference value = 0 is derived from the sign in front of
the last reference line value which was not 0.
After Mains On, the reference line value is limited to +fmin.
For Ramp Setpoint 434 = 3, the sign of the total reference value results from the
total of internal reference frequency and reference line value.
The reference values can be controlled at the frequency inverter via the control unit or
the control software VPlus via the following parameters:
Actual values
Contents
Format
Internal Reference Fre- Internal reference value from the reference xxx.xx Hz
frequency channel
quency 228
Reference Bus Frequency Reference line value from Field bus
xxx.xx Hz
282
Reference Ramp Frequen- = sum of internal reference frequency +
xxx.xx Hz
reference line value
cy 283
Parameters
11.3.4
Example sequence
In configurations without Motion Control (Configuration 30 ≠ x40), the PLC must
send the correct sequence:
1
2
3
4
Control
Control
Control
Control
word
word
word
word
=
=
=
=
0x0000
0x0006
0x0007
0x000F
Disable voltage
Shut down
Switch On
Enable operation
Control word =
Control word =
0x0000
0x000F
Disable voltage
Enable operation
OR
1
2
In configurations without positioning control (Configuration 30 ≠ x40), the second
(shortened) sequence can be used, because transition 4‘ is available in these configurations.
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ACU Modbus/TCP
75
11.4
Motion control configurations
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Definition Motion Control
For the full function of the Motion Control Interfaces/Motion Control Override, you will
have to set Local/Remote 412 = “1-Control via state machine”. In all other operation
modes of parameter Local/Remote 412, there are major restrictions. The descriptions
in this chapter and of all objects used are based on the setting Local/Remote 412 =
“1-Control via state machine”.
The usage of Positioning for setting Local/Remote 412 ≠ 1 is described in the “Positioning” application manual.
The function of the state machine describes the basic operating behavior of the frequency inverter in configurations with position control (Configuration 30 = x40). The
parameters described in 11.2 “Control via state machine”, i.e. Control word 410 and
Status word 411 support the bits marked as operation mode specific.
These bits and bit “Target reached” have different meanings in the different position
control operation modes – defined by Override Modes Of Operation 1454. The following chapters describe the application of the operation mode specific bits in the
control word and status word, depending on the different position control operation
modes. Default value of Override Modes Of Operation 1454: “2 – velocity mode”.
Basic functions:
The state machine must be set to “operation enabled”, before the position command
can be issued via the operation mode specific bits of the control word.
The bits in the control word and status word marked as operation mode specific are
only supported in configurations with position control (Configuration 30 = x40).
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ACU Modbus/TCP
10/13
11.4.1
Velocity mode [rpm]
“Velocity mode” can be selected via parameter Override Modes Of Operation 1454 = 2.
In velocity mode, the mode-specific bits of the control word control the ramp generator
(RFG – Ramp Function Generator). The block diagram illustrates the function.
Relevant parameters:
410
411
1459
240
418
419
420
422
421
1454
Control word
Status word
Override Target velocity vl [rpm]
Actual speed
Minimum Frequency
Maximum Frequency
Acceleration (Clockwise)
Acceleration Anticlockwise
Deceleration (Clockwise)
Override Modes Of Operation
The ramp times are specified via parameters 430…433.
15 14 13 12 11 10 9
10/13
8
7
6
Control word
5 4 3 2
ACU Modbus/TCP
1
0 Bit
0
Switch on
1
Enable voltage
2
Quick stop (Low active)
3
Enable operation
4
Rfg enable
5
Rfg unlock
6
Rfg use ref
7
Fault reset
8
Halt
9
-
10
-
11
-
12
-
13
-
14
-
15
-
77
15 14 13 12 11 10 9
Block diagram
8
7
6
Status word
5 4 3 2
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (low active)
6
Switch on disabled
7
Warning
8
-
9
Remote
10
Target reached (not used)
11
Internal limit value active
12
-
13
-
14
-
15
Warning2
Bit 5 / rfg unlock
Run_RFG
Lock_Output
Bit 6 / rfg use ref
1
1
0
Bit 4 / rfg enable
1
0
1
RFG
Ramp_Reference
Ramp Function Generator
0
0
Special
Function
Generator
78
ACU Modbus/TCP
10/13
Bit 4:rfg enable
Rfg enable = 0 The reference speed comes from a manufacturer-specific special
function.
Rfg enable = 1 The reference speed corresponds to the ramp output.
The special function will only be evaluated if 1299 S. Special Function Generator is
not “9-zero”.
If 1299 S. Special Function Generator = “9-Zero”, the value of the ramp output will
always be used.
Bit 5:rfg unlock
Rfg unlock = 0 The last speed will be maintained and used.
Rfg unlock = 1 The ramp function is active and changes according to the reference
value and the ramp.
Bit 6/rfg use ref
Rfg use ref = 0 Reference value “0” is used.
Rfg use ref = 1 The reference value from Override Target Velocity vl [rpm] 1459 is
used.
Bit 8 HALT
HALT = 0
HALT = 1
 Execute positioning.
 Stop axis. (The frequency inverter remains enabled in “Operation
enabled” state.)
If 1299 S. Special Function Generator ≠ “9-Zero”, the reference value from the ramp
output will also be used if bit 4 “rfg enable” = 1, and if bit 4 “rfg enable” = 0, the
reference value from the source specified in 1299 S. Special Function Generator.
Reference value source
Bit 4 rfg enable = 0
Bit 4 rfg enable = 1
10/13
1299 S. Special Function Generator ≠ “9-Zero”
Reference value from special
function
Reference value from ramp
output
ACU Modbus/TCP
1299 S. Special Function
Generator = “9-Zero”
Reference value from ramp
output
79
11.4.1.1 Example sequence
In order to start “velocity mode”, the correct sequence must be sent by the PLC.
1 Control word =
0x0000
Disable voltage
1 Status word =
0x0050 Switch On Disabled
2 Modes of operation = 2
(Velocity mode)
3 Control word =
Status word =
4 Control word =
Status word =
5 Control word =
Status word =
6a Control word =
Status word =
6b Control word =
Status word =
6c Control word =
Status word =
6d Control word =
Status word =
6e Control word =
Status word =
6f Control word =
Status word =
7 Control word =
Status word =
80
0x0006
Shutdown
0x0031 Ready to switch on
0x0007
Switch On
0x0033 Switched On
0x000F
Enable operation, no change of previous status
if already enabled.
0xnn37 Operation enabled
0x007F
Starts “Velocity mode” with reference value
from parameter Override Target Velocity vl
[rpm] 1459.
0xnn37 Operation enabled
0x006F
1299 S. Special Function Generator:
= “9-Zero”
 Starts “Velocity mode” with reference value from parameter Override Target Velocity vl [rpm] 1459.
1299 S. Special Function Generator:
≠ “9-Zero”
 Starts with reference value with source
from 1299 S. Special Function Generator
0xnn37 Operation enabled
0x003F
Starts “Velocity mode” with reference value “0”
0xnn37 Operation enabled
0x002F
1299 S. Special Function Generator:
= “9-Zero”
 Starts “Velocity mode” with reference value “0”
1299 S. Special Function Generator:
≠ “9-Zero”
 Starts with reference value with source
from 1299 S. Special Function Generator
0xnn37 Operation enabled
0x005F
Starts “Velocity mode” at current speed – current ramps will be canceled.
0xnn37 Disable voltage
0x004F
1299 S. Special Function Generator:
= “9-Zero”
 Starts “Velocity mode” at current speed –
current ramps will be canceled.
1299 S. Special Function Generator:
≠ “9-Zero”
 Starts with reference value from source
from 1299 S. Special Function Generator
0xnn37 Disable voltage
0x01xx
HALT: The drive is decelerated at the ramp
Deceleration (Clockwise) 421 or Deceleration
Anticlockwise 423.
0xnn37 Operation enabled
ACU Modbus/TCP
10/13
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the ACU
is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
With control word transition from 0xnnF to 0x000F, “Velocity mode” will be stopped.
Then, the mode can be restarted via 0xnnF.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely. Once
Override Modes Of Operation 1454 has been set to another value, operation can be
started with a corresponding sequence.
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81
11.4.2
Profile Velocity mode [u/s] (pv)
“Profile velocity mode” (pv) can be selected via Override Modes Of Operation 1454
= 3. In “Profile velocity mode” (pv), the frequency inverter receives a target speed in
user units per second [u/s].
Relevant parameters:
410
411
418
419
1454
1107
1276
1277
1278
Control word
Status word
Minimum Frequency
Maximum Frequency
Override Modes Of Operation
Act. Speed
Velocity Window
Velocity Window Time
Threshold Window
1279
1457
1458
1179
1176
1178
1275
1460
Threshold Window Time
Override Profile Acceleration
Override Profile Deceleration
Emergency ramp
Ramp time Accel.
Ramp time Decel.
Max Slippage
Override Target Velocity pv [u/s]
The ramp times are specified via parameters 1176…1178.
In “Profile velocity mode” (pv), the mode-specific bits of the control word and the
status word are used as follows:
15 14 13 12 11 10
9
8
Control word
7 6 5 4 3
2
1
0 Bit
0
Switch on
1
Enable voltage
2
3
Enable operation
4
-
5
-
6
-
7
Fault reset
8
Halt
9
-
1
0
1
1
1
2
1
3
1
4
1
5
82
ACU Modbus/TCP
Quick stop (Low
active)
-
10/13
15 14 13 12 11 10 9
8
7
6
Status word
5 4 3 2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (low active)
6
Switch on disabled
7
Warning
8
-
9
Remote
10
Target reached
11
Internal limit active
12
Velocity
13
Max Slippage
14
-
15
Warning 2
Profile velocity mode enables setting of a reference speed in units per second [u/s].
The reference speed Override Target Velocity pv [u/s] 1460 will be applied immediately in status “Operation enabled” (0xnn37). The acceleration and deceleration ramps
are set via parameters Override Profile Acceleration 1457 and Override Profile Deceleration 1458.
If bit 8 “Halt” of the control word is set, the drive will be decelerated and kept at a
standstill at the ramp set in parameter Override Profile Deceleration 1458. If bit 8 is
reset, the drive will be accelerated to the current reference speed at the ramp set in
parameter Override Profile Acceleration 1457.
Control word Bit 8: Halt
HALT = 0
 Execute Profile Velocity Mode.
HALT = 1
 Halt Axis. (The Frequency inverter remains in state “Operation
enabled”.)
The current speed in user units per second [u/s] can be displayed in a controller via
parameter Velocity Window 1276.
10/13
ACU Modbus/TCP
83
Via parameter Velocity Window 1276 and Velocity Window Time 1277 Bit 10 “Target
reached” of the status word is set.
Via parameter Threshold Window 1278 and Threshold Window Time 1279 Bit 12 “Velocity” of the status word is set.
Via parameter Max Slippage 1275 a slip monitoring via Bit 13 “Max Slippage” of the
status word can be set up.
Status word bit 10: Target reached
Target reached =0  The actual velocity doesn’t match the reference velocity.
Target reached =1  The actual velocity matches the reference velocity.
The actual velocity differs at least from the defined time period
in Velocity Window Time 1277 up to the defined amount [us]
in Velocity Window 1276.
Status word Bit 12: Velocity
 The Actual Velocity matches the comparison speed.
Velocity
=0
The Actual Velocity has exceeded for a defined time (Threshold
Window Time 1279) a defined Velocity in user units per seconds [u/s] (Threshold Window 1278).
 The Actual Velocity doesn’t match the Comparison Velocity.
Velocity
=1
Status word Bit 13: Maximum Slippage
Maximum Slippage  The actual Slippage speed is smaller than defined. The
=0
comparison value of the slippage speed is defined Object Max
Slippage 1275.
Maximum Slippage  The actual Slippage speed is bigger than defined. The
=1
comparison value of the slippage speed is defined Max Slippage 1275.
84
ACU Modbus/TCP
10/13
11.4.2.1 Example sequence
In order to start “Profile velocity mode”, the correct sequence must be sent by the
PLC.
1
1
2
Control word =
Status word =
Modes of
Operation =
0x0000
3
Control word =
Status word =
Control word =
Status word =
Control word =
0x0006
4
5
3
0x0007
0x0007
0x000F
Status word =
Disable voltage
0x0050 Switch On Disabled
Profile Velocity mode
Shutdown
0x0031 Ready to switch on
Switch On
0x0033 Switched On
Enable operation. Profile velocity mode is
started at the target speed Override Target Velocity pv [u/s] 1460 and the ramps
Override Profile Acceleration 1457 and
Override Profile Deceleration 1458.
Target speed and ramp values are applied
immediately.
0xnn37 Operation enabled
1) A profile comprises the following entries. If a value is not changed, the old value
will remain active.
• 1456 Override Profile Velocity
• 1457 Override Profile Acceleration
• 1458 Override Profile Deceleration
• 1460 Override Target Velocity pv [u/v]
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the
ACU is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely.
Once Override Modes Of Operation 1454 has been set to another value, operation
can be started with a corresponding sequence.
10/13
ACU Modbus/TCP
85
11.4.3
Profile position mode
“Profile position mode” can be selected via Override Modes Of Operation 1454 = 1.
In profile position mode, the frequency inverter receives a target position, followed by
the command to travel to this target.
Relevant parameters:
410 Control word
411 Status word
418 Minimum Frequency
1455 Override Target Position
1456 Override Profile Velocity
1457 Override Profile Acceleration
419 Maximum Frequency
1454 Override Modes Of Operation
1458 Override Profile Deceleration
1179 Emergency ramp
The ramp times are specified via parameters 1176 and 1178.
In “Profile position mode”, the mode-specific bits of the control word and the status
word are used as follows:
15 14 13 12 11 10 9
86
8
7
6
Control word
5 4 3 2
ACU Modbus/TCP
1
0 Bit
0
Switch on
1
Enable voltage
2
Quick stop (Low active)
3
Enable operation
4
New set-point
5
Change set immediately
6
Abs/rel
7
Fault reset
8
Halt
9
Change on set-point
10
-
11
-
12
-
13
-
14
-
15
-
10/13
15 14 13 12 11 10 9
10/13
8
7
6
Status word
5 4 3 2
ACU Modbus/TCP
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low active)
6
Switch on disabled
7
Warning
8
-
9
Remote
10
Target reached
11
Internal limit active
12
Set-point acknowledge
13
Following error
14
-
15
Warning 2
87
Control word
Change on
set-point
Bit 9
Change set-point
immediately
Bit 5
0
0
Bit 4
01
X
1
01
1
0
01
Identification
Abs/rel
Bit 6
Halt
Bit 8
Value
0
1
0
1
New setpoint
Description
Positioning operation to be completed (target reached) before
the next one is started.
Next positioning operation to be
started immediately.
Positioning operation to be
started with the current speed
profile until the current reference value is reached, then, the
next positioning operation is to
be processed.
Description
Override Target Position 1455 is an absolute value.
Override Target Position 1455 is a relative value.
Execute positioning operation.
Stop axis with Override Profile Deceleration 1458 (if
not supported with Override Profile Acceleration
1457), the frequency inverter will remain in status
“Operation enabled”.
Status word
Identification
Target reached
Bit 10
Set-point
acknowledge
Bit 12
Following error
Bit 13
88
Value
Description
0
Halt (control bit 8) = 0: Override Target Position
1455 not reached (yet). See
also chapter 10.2.4 “Target
window”.
Halt (control bit 8) = 1: Axis decelerated
1
Halt (control bit 8) = 0: Override Target Position
1455 reached. See also
chapter 10.2.4 “Target window”.
Halt (control bit 8) = 1: Speed of axis is 0
0
The travel profile calculation has not applied the position value (yet).
1
The travel profile calculation has applied the position
value.
0
No following error.
1
Following error.
ACU Modbus/TCP
10/13
Example:
Individual reference value
Control bit “Switch at reference value” = 0
Control bit “Change reference value immediately” = 0
Once a reference value has been transmitted to the drive, the controller signals a permissible value in the control work by a rising signal edge for the bit “New reference
value” The drive responds by setting the bit “Reference value confirmed” and starts
moving to the new target position. After that, the controller resets the bit “New reference value”, and the drive resets the bit “Reference value confirmed”. Once the bit
“Reference value confirmed” has been reset, the drive is ready for receiving a new target position.
new set point
(control bit 4)
PLC
t
target position
(set point)
t
Drive
current target
position
processed
t
set point
acknowledge
(status bit 12)
t
target reached
status bit 10
t
actual
speed
t
10/13
ACU Modbus/TCP
89
Example:
single set-point
control bit change on set-point
control bit change set immediately
=0
=1
A new reference value is confirmed by the control bit “New reference value” (rising
edge) while a reference value is being processed. The new reference value is processed immediately.
new set point
(control bit 4)
PLC
t
target position
(set point)
t
Drive
current target
position
processed
t
set point
acknowledge
(status bit 12)
t
target reached
status bit 10
t
actual
speed
t
90
ACU Modbus/TCP
10/13
Example:
set of set-points
control bit change on set-point
control bit change set immediately
= 0/1
=0
The travel profile is changed during an active positioning operation.
Change on set point = 0 The current target position is approached with a Stop. Once
the position has been reached, the new reference value is
set.
Change on set point = 1 The current target position is approached at the active
speed. Once the current target position has been reached,
the new reference value is applied without reducing the
speed to zero.
new set point
(control bit 4)
PLC
t
target position
(set point)
t
Drive
current target
position
processed
t
set point
acknowledge
(status bit 12)
t
target reached
status bit 10
t
actual
speed
t
change on set point =
10/13
0
ACU Modbus/TCP
change on set point =
1
91
11.4.3.1 Example sequence
In order to start “Profile position mode”, the correct sequence must be sent by the PLC.
1 Control word =
1 Status word =
2 Modes of
Operation =
0x0000
3 Control word =
Status word =
4 Control word =
Status word =
5 Control word =
0x0006
Status word =
6a Control word =
Status word =
6b Control word =
Status word =
6C Control word =
Status word =
6d Control word =
Status word =
7 Control word =
Status word =
1
0x0007
0x0007
0x000F
Disable voltage
0x0050 Switch On Disabled
(Profile Position mode)
Shutdown
0x0031 Ready to switch on
Switch On
0x0033 Switched On
Enable operation. Positioning operation is
not started.
0xnn37 Operation enabled
0x0007 or 0x000F
Operation enabled, start absolute positioning with profile1).
0x001F
If a positioning operation is already in process, this operation will be completed.
Then, the new profile will be used.
0xnn37 Operation enabled
0x0007 or 0x000F
Operation enabled, start relative positioning with profile1).
0x005F
If a positioning operation is already in process, this operation will be completed.
Then, the new profile will be used.
0xnn37 Operation enabled
0x0007 or 0x000F
Operation enabled, start absolute positioning with profile1).
0x003F
Running positioning operations will
changed and apply the new profile
0xnn37 Operation enabled
0x0007 or 0x000F
Operation enabled, start relative positioning with profile1).
0x007F
Running positioning operations will
changed and apply the new profile
0xnn37 Operation enabled
0x01nF
HALT: The drive is decelerated at the ramp
set in Deceleration (clockwise) 421 or
Deceleration anticlockwise 423.
0xnn37 Operation enabled
1) A profile comprises the following entries. If a value is not changed, the old value will
remain active.
• 1455 Override Target Position
• 1456 Override Profile Velocity
• 1457 Override Profile Acceleration
• 1458 Override Profile Deceleration
92
ACU Modbus/TCP
10/13
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the ACU
is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
With control word transition from 0xnnF to 0x000F, “Profile position mode” will be
stopped. Then, the mode can be restarted via 0xnnF.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely. Once
Override Modes Of Operation 1454 has been set to another value, operation can be
started with a corresponding sequence.
In order to start a profile, you don't have to set the control word to 0x0007 first.
Once a profile has been processed, a new profile can be started with the bit “New reference value” (bit 4) in control word 0xnnnF.
While a profile is being processed, you can start a new profile without stopping by using the bits “Change reference value immediately” (bit 5) and “New reference value”
(bit 4).
10/13
ACU Modbus/TCP
93
11.4.4
Homing mode
“Homing mode” can be selected via parameter Override Modes Of Operation 1454.
In homing mode, the frequency inverter moves the drive to a reference position. The
method used for this movement is defined by parameter Homing mode 1130.
Relevant parameters:
410
411
418
419
1454
Control word
Status word
Minimum Frequency
Maximum Frequency
Override Modes Of Operation
1130
1132
1133
1134
Homing mode
Fast speed
Creep speed
Acceleration
The ramp times are specified via parameter 1135.
In homing mode, the mode-specific bits of the control word and the status word are
used as follows:
15 14 13 12 11 10 9
8
7
Control word
6 5 4 3
2
1
0 Bit
0
Switch on
1
Enable voltage
2
3
4
Homing operation
start
-
6
-
7
Fault reset
8
Halt
9
-
1
1
1
2
1
3
1
4
1
5
ACU Modbus/TCP
Enable operation
5
1
0
94
Quick stop (Low active)
-
10/13
15 14 13 12 11 10
9
8
7
Status word
6 5 4 3
2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low Active)
6
Switch on disabled
7
Warning
8
-
9
Remote
1
0
1
1
1
2
1
3
1
4
1
5
Target reached
Internal limit active
Homing attained
Homing error
Warning 2
Control word
Identification
Homing operation
start
Bit 4
Halt
Bit 8
10/13
Value
0
01
1
10
0
1
Description
Homing not active.
Start homing with Acceleration 1134 and Fast Speed
1132 and Creep Speed 1133.
Homing active.
Stop homing.
Execute command from bit 4 “Start homing”.
Stop axis with acceleration value (as deceleration) for
homing. (The frequency inverter remains enabled in
“Operation enabled” status.)
ACU Modbus/TCP
95
Status word
Identification
Target reached
Bit 10
Value
0
1
Homing attained
Bit 12
Homing error
Bit 13
0
1
0
1
Description
Halt = 0: Home position (still) not reached.
Halt = 1: Axis decelerated.
Halt = 0: Home position reached.
Halt = 1: Axis has speed 0.
Homing not completed yet.
Homing completed successfully.
No homing error.
Homing error occurred,
homing not completed successfully.
For a description of homing operations, refer to the Application manual “Positioning”.
11.4.4.1 Example sequence
In order to start “homing mode”, the correct sequence must be sent by the PLC.
1 Control word =
0x0000
Disable voltage
1 Status word =
0x0050 Switch On Disabled
2 Modes of operation = 6
(Homing)
3 Control word =
Status word =
4 Control word =
Status word =
5 Control word =
Status word =
6a Control word =
Status word =
0x0006
Shutdown
0x0031 Ready to switch on
0x0007
Switch On
0x0033 Switched On
0x000F
Enable operation.
0xnn37 Operation enabled
0x001F
Enable operation and start homing.
0x1n37 Operation enabled and homing attained.
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the ACU
is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
With control word transition from 0x0007 (or 0x000F) to 0x001F the homing operation
is started. “Home position set” - Bit 12 returns the status in the status word.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely. Once
Override Modes Of Operation 1454 has been set to another value, operation can be
started with a corresponding sequence.
96
ACU Modbus/TCP
10/13
11.4.5
Table travel record
“Table travel record mode” can be selected via parameter Override Modes Of Operation 1454. In “Table travel record mode”, the drive moves to successive positions
automatically. “Table travel record mode” uses pre-defined positions. Each target position is defined by a motion block. Several motion blocks can be defined.
For a description of motion blocks, refer to the Application manual “Positioning”.
Relevant parameters:
410
411
418
419
1454
1246
1249
Control word
Status word
Minimum Frequency
Maximum Frequency
Override Modes Of Operation
Actual Motion Block
Motion Block to Resume
1108
1106
1119
1165
1166
1179
Act. Position
Error Threshold
Contouring Error Time
Target Window
Target Window time
Emergency ramp
In “Table travel record mode” the mode-specific bits of the control word and the status word are used as follows:
15 14 13 12 11 10
9
8
7
Control word
6 5 4 3
2
1
0 Bit
0
Switch on
1
Enable voltage
2
3
Enable operation
4
Sequence mode
5
-
6
Resume
7
Fault reset
8
Halt
9
Start motion block
1
0
Motion block select
0
1
2
Motion
1
Motion
2
Motion
3
Motion
4
1
4
1
5
ACU Modbus/TCP
-
1
1
1
3
10/13
Quick stop (Low
active)
block select
block select
block select
block select
97
15 14 13 12 11 10 9
8
7
6
Status word
5 4 3 2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low Active)
6
Switch on disabled
7
Warning
8
Motion block in progress
9
Remote
10
Target reached
11
Internal limit active
12
In gear
13
Following error
14
-
15
Warning 2
Control word
Identification
Sequence mode
Bit 4
Resume
Bit 6
Halt
Bit 8
Start motion
block
Bit 9
Motion block select 0…4
Bit 11…15
98
Value
0
1
0
1
0
1
0
01
n
Description
Single motion
Automatic sequence
Start motion block = motion block switching
Start motion block = last Actual Motion Block
The motion block which is resumed can be read via object 1249.
Execute command from bit 4 “Automatic sequence”
Stop axis at ramp of current motion block The frequency
inverter remains in “Operation – enabled” status.
Stop axis at ramp of current motion block
Execute motion block(s)
Start motion block = n + 1
ACU Modbus/TCP
10/13
Motion block select
15
4
14
13
12
11
Motion block select
3
2
1
10
9
Sta
Control word
8
Halt
7
6
Res
5
4
Seq
3
2
1
0
Start motion block = motion block select +1
Motion block select
4
3
2
1
0
0
0
0
0
0
0
1
1
0
0
0
1
1
1
1
0
0
1
0
1
Resulting start motion block
1
4
17
32
Status word
Identification
Motion block in
progress
Bit 8
Value
0
1
Target reached
Bit 10
0
1
In gear
Bit 12
Following error
Bit 13
10/13
0
1
0
1
Description
Single motion:
Motion block complete.
Automatic sequence:
Sequence complete.
Single motion/automatic sequence active.
Halt (control bit 8) = 0: Target position not reached
yet (only motion blocks with
positioning). See also chapter
10.2.4 “Target window”.
Halt (control bit 8) = 1: Axis decelerated.
Halt (control bit 8) = 0: Target position reached (only
motion blocks with positioning). See also chapter 10.2.4
“Target window”.
Halt (control bit 8) = 1: Axis has speed 0.
Electronic gear not in gear.
Electronic gear in gear.
No contouring error.
Contouring error.
ACU Modbus/TCP
99
0
Basic functions
The control bit “Automatic sequence” defines if a single motion (Automatic sequence
= 0) or and automatic motion block sequence (Automatic sequence = 1) is to be executed.
In both cases, the selection of the required motion block (motion block number of
single motion or start motion block number of automatic sequence) is calculated by
the motion block switching feature with the rising edge of “Start motion block”.
“Motion block is being processed” is set to “1” while a selected motion block or an
automatic sequence is being executed. “Motion block is being processed” will remain
set until the motion block sequence is complete. When a single motion block is executed, “Motion block is being processed” will be set to “0” once the single motion
block is complete. When an automatic sequence is executed, “Motion block is being
processed” will be set to “0” once a motion block with setting 0 for Next motion block
(end of motion block), -1 (error stop), -2 (Stop, error ) or -3 (emergency stop, error)
is reached.
During the automatic processing of motion blocks, the currently processed motion
block is indicated by parameter Actual Motion Block 1246.
If the execution of motion blocks is interrupted by setting “Start motion block” to “0”,
the drive will stop with the ramp set in the current motion block. The interrupted motion block or automatic motion block sequence can be continued by setting “Resume”
and a rising signal edge for “Start motion block”. If “Resume” is set to “1” and no valid
motion block is available, the motion block selected by the motion block switching
function will be used. A valid motion block is indicated by parameter Motion block to
Resume 1249. Motion block to Resume 1249 reads -1, if no valid motion block is
present or if the last motion block or motion block sequence was not interrupted.
“Target reached” is set if the actual position of motion blocks with absolute or relative
positioning reaches the position window.
“In Gear” is set when the electronic gear function is used and the electronic gear is
coupled (synchronous running).
Setting Halt to “1” will stop a currently executed motion block. The axle is stopped
with the ramp set in the current motion block. “Target reached” is set to “1” when the
speed reaches value 0. The drive remains in “Operation enabled” status. To continue
the interrupted motion block, reset Halt to “0”.
100
ACU Modbus/TCP
10/13
Examples:
“single motion block” sequence mode (control bit 4) = 0
2 motion blocks 7 + 10
start motion block
(control bit 9)
PLC
Drive
motion block
in progress
(status bit 8)
target reached
(status bit 10)
position
active
motion block
10/13
0
7
ACU Modbus/TCP
0
10
0
101
“ motion block sequence” sequence mode (control bit 4) = 1
sequence = motion block 4, 5, 6
start motion block
(control bit 9)
PLC
Drive
motion block
in progress
(status bit 8)
target reached
(status bit 10)
position
active
motion block
102
0
4
ACU Modbus/TCP
5
6
0
10/13
Interrupted motion blocks sequence
Automatic sequence (control bit 4) = 1,
Sequence = Motion block 4, 5, 6
Motion block 5 interrupted
start motion block
(control bit 9)
PLC
resume
(controlbit 6)
Drive
motion block
in progress
(status bit 8)
target reached
(status bit 10)
position
10/13
active
motion block
0
4
motion block
to resume
-1
4
5
ACU Modbus/TCP
0
5
5
6
0
6
-1
103
11.4.5.1 Example sequence
In order to start “Table travel record mode”, the correct sequence must be sent by the
PLC.
1
1
2
Control word =
0x0000
Disable voltage
Status word =
0x0050 Switch On Disabled
Modes of operation = -1
(Table travel record mode)
3
5E
Control word =
Status word =
Control word =
Status word =
Control word =
Status word =
Control word =
Status word =
Status word =
Control word =
Status word =
Status word =
Control word =
Status word =
Status word =
Control word =
5f
Status word =
Status word =
Control word =
4
5a
5b
5c
5d
Status word =
Status word =
5g Control word =
Status word =
Status word =
0x0006
Shutdown
0x0031 Ready to switch on
0x0007
Switch On
0x0033 Switched On
0x000F
Enable operation
0xnn37 Operation enabled
0x020F
Start motion block 1 as single motion block
0xn337 Operation enabled and Positioning active.
0xn637 Operation enabled and Target reached.
0x0A0F
Start motion block 2 as single motion block
0xn337 Operation enabled and Positioning active.
0xn637 Operation enabled and Target reached.
0x120F
Start motion block 3 as single motion block
0xn337 Operation enabled and Positioning active.
0xn637 Operation enabled and Target reached.
0x021F
Start motion block 1 as sequence motion
block
0xn337 Operation enabled and Positioning active.
0xn637 Operation enabled and Target reached.
0x004F
Resume previous motion block as single motion block
0xn337 Operation enabled and positioning active.
0xn637 Operation enabled and target reached.
0x005F
Resume previous motion block as sequence
motion block
0xn337 Operation enabled and positioning active.
0xn637 Operation enabled and target reached.
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the
ACU is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
Bit 9 “Start motion block” must be active during positioning. If bit 9 is reset to “0”, the
positioning operation is interrupted.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely.
Once Override Modes Of Operation 1454 has been set to another value, operation
can be started with a corresponding sequence.
104
ACU Modbus/TCP
10/13
11.4.6
Move away from limit switch mode
“Move away from limit switch mode” can be selected via Override Modes Of Opera-
tion 1454 = -2.
In “Move away from limit switch mode”, the drive moves back from a triggered limit
switch to the permissible travel range.
Relevant parameters:
410
411
418
419
1454
1179
1133
1134
Control word
Status word
Minimum Frequency
Maximum Frequency
Override Modes Of Operation
Emergency ramp
Creep speed
Acceleration
In “Move away from limit switch mode”, the mode-specific bits of the control word
and the status word are used as follows:
15 14 13 12 11 10 9
8
7
Control word
6 5 4 3
2
1
0 Bit
0
Switch on
1
Enable voltage
2
3
4
Quick stop (Low active)
Enable operation
Move away from limit
switch
5
-
6
-
7
Fault reset
8
Halt
9
1
0
1
1
1
2
1
3
1
4
1
5
10/13
ACU Modbus/TCP
-
-
105
15 14 13 12 11 10
9
8
7
Status word
6 5 4 3
2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (Low active)
6
Switch on disabled
7
Warning
8
-
9
Remote
1
0
1
1
1
2
1
3
1
4
1
5
Target reached
Internal limit active
-
Warning 2
NOTE
“Move away from limit switch mode” will always work with hardware limit switches. In
the case of software limit switches, the mode will only work if a software limit switch
Fault reaction 1144 with error stop was selected. If a setting with warning (e.g. “10Warning”) was selected, the software limit switch will not trigger an error, thus “Move
away from limit switch mode” will not clear the software limit switch.
NOTE
“Move away from limit switch mode” must not be used when one of the following
error messages occurs:
• F1444 Pos. limit switch < Neg. limit switch
• F1445 Both limit switches at the same time
• F1446 Wrong limit switch wiring
If one of these errors has occurred, the wiring and parameter settings must be
checked first before resuming operation.
106
ACU Modbus/TCP
10/13
Control word
Identification
Move away from
limit switch mode
Bit 4
Halt
Bit 8
Value
0
1
0
1
Description
Do not start or stop movement.
Start (or resume) movement from limit switch to travel
range.
Execute command from bit 4 “Move away from limit
switch”.
Stop axis with ramp of current motion block (The frequency inverter remains enabled in “Operation enabled”
status).
Status word
Identification
Target reached
Bit 10
Value
0
1
Halt = 0:
Halt = 1:
Halt = 0:
Halt = 1:
Description
Limit switch still active
Axis decelerated
Limit switch cleared
Axis has speed 0
Basic functions
In mode -2 “Move away from limit switch”, the drive is cleared from a triggered hardware limit switch or software limit switch. The direction of rotation depends on the
active limit switch: If the positive limit switch is active, the drive moves to negative
direction and vice versa.
“Move away from limit switch” mode is started in status “Operation enabled” by control word bit 4 “Move away from limit switch”. The drive is accelerated with the ramp
from parameter Acceleration 1134 to the speed set in parameter Creep speed 1133.
Once the active limit switch has been cleared, the drive is stopped. Once speed 0 has
been reached, status word bit 10 “Target reached” will be set.
When both directions of rotation are blocked, e.g. due to simultaneous triggering of
positive and negative limit switch, error message “F1449 Both directions locked”. In
this case, the function “Move away from limit switch” cannot be used.
NOTE
In the clearing phase of a hardware limit switch, the hysteresis defined in parameter
Hysteresis 1149 will be active. After detection of the limit switch edge, the axis will
be moved on, at least by the defined hysteresis distance.
Setting Halt to “1” will stop the started clearing operation. The axis will be stopped.
Status bit “Target reached” is set to “1” when the speed reaches value 0. The drive
remains in “Operation enabled” status. By resetting Halt to “0”, the interrupted clearing operation will be continued, and “Target reached” will be reset to “0”.
10/13
ACU Modbus/TCP
107
11.4.6.1 Example sequence
In order to clear the limit switches, the correct sequence must be sent by the PLC.
1 Control word =
0x0000
Disable voltage
1 Status word =
0x0050 Switch On Disabled
2 Modes of operation = -2
(Move away from limit switch)
3 Control word =
Status word =
4 Control word =
Status word =
5 Control word =
Status word =
6 Control word =
Status word =
Status word =
0x0006
Shutdown
0x0031 Ready to switch on
0x0007
Switch On
0x0033 Switched On
0x000F
Enable Operation.
0xnn37 Operation enabled
0x001F
Move away from limit switch mode
0xn2B7 Operation enabled, limit switch active, clearing active
0xn637 Operation enabled and limit switch cleared
(target reached).
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the
ACU is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
Bit 4 “Move away from limit switch” must be active in the clearing phase. If bit 4 is
reset to “0”, the clearing operation is interrupted.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely.
Once Override Modes Of Operation 1454 has been set to another value, operation
can be started with a corresponding sequence.
108
ACU Modbus/TCP
10/13
11.4.7
Electronic gear: Slave
The mode “Electronic gear: Slave” can be selected via parameter Override Modes Of
Operation 1454 =-3.
In operation mode “Electronic gear: Slave”, the drive follows a master drive as a slave
drive.
Relevant parameters:
410
411
418
419
1454
1123
1124
1142
1125
Control word
Status word
Minimum Frequency
Maximum Frequency
Override Modes Of Operation
Gear Factor: Numerator
Gear Factor: Denominator
Resync. on Change of GearFactor
Phasing: Offset
1126
1127
1108
1106
1119
1165
1166
1179
Phasing: Speed
Phasing: Acceleration
Act. Position
Error Threshold
Contouring Error Time
Target window
Target window time
Emergency ramp
In operation mode “Electronic gear: Slave”, the mode-specific bits of the control word
and the status word are used as follows:
15 14 13 12 11 10
9
8
7
Control word
6 5 4 3
2
1
0 Bit
0
Switch on
1
Enable voltage
2
Quick stop (low active)
3
Enable operation
4
Start Gearing
5
Start M/S Correction
6
Direct Sync
7
Fault reset
8
Halt
9
Start phasing
1
0
1
1
1
2
1
3
1
4
1
5
10/13
ACU Modbus/TCP
Phasing switching 0
Phasing switching 1
-
109
15 14 13 12 11 10 9
8
7
6
Status word
5 4 3 2
1
0 Bit
0
Ready to switch on
1
Switched on
2
Operation enabled
3
Fault
4
Voltage enabled
5
Quick stop (low active)
6
Switch on disabled
7
Warning
8
Phasing Done
or
M/S Correction Done
9
Remote
10
Target reached / In gear
11
Internal limit active
12
M/S Position Correction
successful
13
Following error
14
-
15
Warning 2
WARNING
Dangerous state due to faulty parameterization
•
The function Master/Slave Position Correction is only allowed to be used after
complete setup of this function. Check for parameter setup chapter 11.4.7.1
“Master/Slave Position Correction”.
110
ACU Modbus/TCP
10/13
Control word
Identification
Start electronic
gear
Bit 4
Value
0
1
Start
M/S Correction
Bit 5
0
1
Direct Sync
Bit 6
Halt
Bit 8
0
1
0
1
Start Phasing
Bit 9
0
1
n
Phasing select 0...1
Bit 12…13
Description
Stop drive at ramp Override Profile Deceleration
1458
Start electronic gear at reference master speed at
ramp Override Profile Acceleration 1457
M/S Correction not started.
Start Master/Slave Position correction.
See chapter 11.4.7.1 “Master/Slave Position Correction”.
Direct Synchronisation enabled.
Direct Synchronisation disabled.
Execute command from bit 4 “Start el. gear”.
Stop axis with ramp of current motion block The frequency inverter remains in “Operation enabled” status.
Phasing disabled / aborted.
Start Phasing with profile defined by Bits 12 & 13.
Phasing Profile = n + 1
Phasing switching:
Control word
15
14
13
12
11
10
9
Pha
Ph. sw.
1
8
Halt
7
6
DS
5
MS
4
SG
3
2
1
0
0
Phasing profile = Phasing switch over +1
Phasing select
Bit 13
Bit 12
0
0
0
1
1
0
1
1
Phasing profile
1
2
3
4
Status word
10/13
Identification
Phasing done
(or M/S Correction done)
Bit 8
Target reached/
In gear
Bit 10
Value
M/S Position Correction successful
Bit 12
0
1
Following error
Bit 13
0
1
0
1
0
1
Description
Phasing (or M/S Correction) in process or not started
yet.
Phasing (or M/S Correction) done.
Halt = 0:
Electronic gear (still) not in gear
Halt = 1:
Axis decelerated.
Halt = 0:
Electronic gear in gear.
Halt = 1
Axis has speed 0.
M/S Correction is running or wasn’t started yet.
M/S Correction finished.
See chapter 11.4.7.1 “Master/Slave Position Correction”.
No following error.
Following error.
ACU Modbus/TCP
111
Basic functions
Mode “-3 Electronic gear: Slave” implements a mode for a slave drive in the electronic
gear to a master drive. The master of the electronic gear must be connected to the
slave via signal cables or System Bus (recommended). The master input is selected in
the Slave via parameter Master position source 1122.
Operation mode 1122
0 - Off
1 - Encoder 1
Encoder
2/resolver
2-
RxPDO1.Long1
extrapolated
11 -
Function
No source selected.
The current speed and position of the master drive is
taken over from encoder input 1.
The current speed and position of the master drive is
taken over from encoder input 2 or resolver.
The current position of the master drive is taken over
by the process data channel RxPDO1.Long1 of the system bus. Additionally, the data received are extrapolated, even for slow settings of TxPDO Time of the master.
Depending on the application, select a setting of the
corresponding TxPDO.Long of the master:
• “606 – Internal act. Position (16/16)”, mechanical
position of master drive. Value will not change
abruptly when a homing operation of the master
drive is completed.
• “607 – Act. Position (16/16)”, mechanical position of
master drive. Value will jump when the master drive
carries out a homing operation.
• “620 – motion profile gen.: internal reference position”, reference position of master drive; advantage:
Improved controller properties. Value will not
change abruptly when a homing operation of the
master drive is completed.
• “627 - Motion profile gen.: reference position”, reference position of master drive; advantage: Improved controller properties. Value will jump when
the master drive carries out a homing operation.
Settings 607 and 627 are only to be used in exceptional
situations. In most applications, source 606 or 620 is
the better setting.
In setting “11 - RxPDO1.Long1 extrapolated” of parameter Master position
source 1122, the Operation mode 1180 of the system bus synchronization must be
set to 1 or 10 to ensure reliable functional operation.
Operation mode 1180
0
1
2
3
10
-
Off 1)
RxPDO1
RxPDO2
RxPDO3
SYNC
2)
3)
3)
1)
If the error message "F1453 System Bus synchronization not activated" is displayed
when the slave drive is started, operation mode 1, 2, 3 or 10 must be selected.
2)
Synchronization of processing with data telegram or cyclic sending of SYNC telegram.
3)
Not recommended for el. gear because no extrapolation done.
112
ACU Modbus/TCP
10/13
Synchronization between several drives must be performed at high updating rates in
order to guarantee optimum results. In the transmitter of the TxPDO object, set a low
value for the time (e.g. TxPDO1 Time 931). If you use the SYNC function of System
Bus, set parameter SYNC time 919 to a lower value.
Note that, due to these settings, the bus load of the system bus must provide for
sufficient reserves for proper operation.
System Bus is described in the manuals of the extension modules with System Bus
interface.
Block diagram: electronic gear and phasing function
The master position and speed are multiplied by the gear factor. When phasing is started, the phasing profile is added to the master speed until the phasing offset is reached.
The Gear factor is defined via the following parameters:
Parameters
1123 Gear Factor Numerator
1124 Gear Factor Denominator
1142 Resync. on Change of Gear-Factor
Phasing is defined via the following parameters:
Parameters
1125.1 Phasing: Offset
1125.2
1125.3
1125.4
1126.1 Phasing: Speed
1126.2
1126.3
1126.4
1127.1 Phasing: Acceleration
1127.2
1127.3
1127.4
Start electronic gear and phasing function
The electronic gear is started by control word bit 4 “Start electronic gear”. The drive
accelerates according to parameter Override Profile Acceleration 1457. Once the
slave speed is coupled into the master, status word bit 10 “Target reached/In Gear” is
set. The conditions for “In Gear” status are set via parameters In Gear'-Threshold
1168 and In Gear'-Time 1169.
10/13
ACU Modbus/TCP
113
“Target reached/In Gear” is set when the electronic gear function is used and electronic
gear synchronous running is reached.
Setting Halt “1” will stop a currently executed movement. The axis is stopped at ramp
Override Profile Deceleration 1458. “Target reached” is set to “0” to start the deceleration and to “1” when the speed reaches value 0. The drive remains in “Operation –
enabled” status. To continue the interrupted movement, reset Halt to “0”. Bit “Target
reached” is set to “0” to start the acceleration and to “1” when the conditions for “Gear
in” of parameters In Gear'-Threshold 1168 and In Gear’-Time 1169 are reached.
Phasing
With the phasing function, the slave position is offset from the master position received
by the value of Phasing: Offset 1125.
Phasing is described above in this chapter.
Function without direct synchronization
(“Standard Synchronization“)
The drive accelerates the master speed at the ramps parameterized in the motion
block. As soon as the master speed is reached for the first time, the drive is synchronized with the master drive. The slave is engaged at the current position and operates
at a synchronous angle with the master. In the case of a relative positioning operation,
this engaging position is used as the start position.
The acceleration and deceleration for synchronizations follow an S-curve.
The relative position change due to acceleration is not compensated.
114
ACU Modbus/TCP
10/13
Function with direct synchronization
The drive accelerates the master speed with the ramps parameterized in the motion
block. When the motion block is started, the drive is synchronized with the master drive
directly. The master position is processed directly by the position controller.
The acceleration and deceleration for synchronizations follow an S-curve.
The relative position change due to acceleration is compensated by the position controller.
10/13
ACU Modbus/TCP
115
11.4.7.1 Master/Slave Position Correction
NOTE
When using this functionality master drive and slave drive have to use the same
mechanical characteristics (i.e. gear transmission ratios) and use the same reference
system.
The Master/Slave Position Correction offers as part of the Electronic Gear the possibility to synchronize the absolute Position of the Slave to the absolute Position of the
master.
This function is helpful in example in applications, in which drives often work independently from each other and have to work together for certain activities. In example
this could be the case in crane applications, where normal loads are operated intently
from each other and which are switched together for heavy loads. To speed up the
switching together process, the Master/Slave Position correction can be used to synchronize the absolute position of the Slave with the absolute position of the Master.
Additionally by using an Offset a relative reference can be set up in the target position.
Preparations Master drive
The Master drive must be set up as follows:
TxPDO2 Identifier 927 = 640 (or a different not used Identifier)
TxPDO2 Function 932 = 1 – controlled by time or 2 – controlled by SYNC
TxPDO2.Long1 964 = 743 – Act. Position [User Units]
Additionally the following parameters must be set according to the electronic gear:
TxPDO1.Long1 954 corresponding to the description of Master Position Source
1122
TxPDO1 Identifier 925 = 384 (or a different not used Identifier)
TxPDO1 Function 930 = 1 – controlled by time or 2 – controlled by SYNC
Preparations Slave drive
The Slave drive must be set up as follows:
RxPDO2 Function 926 = 640 (or the Identifier defined in the Master drive)
Additionally the following parameters must be set according to the electronic gear:
RxPDO1 Function 924 = 384 (or the Identifier defined in the Master drive)
Source Master position 1122 = 11 – RxPDO1.Long
The function Master/Slave Position Correction expects the Target Position [u] always
in RxPD2.Long. When using this function RxPDO2.Long1 and also RxPDO2.Word1,
RxPDO2.Word2, RxPDO2.Boolean1 and RxPDO2.Boolean2 are not allowed to be
used for any other purpose.
116
ACU Modbus/TCP
10/13
Starting of Master/Slave Position Correction in Slave drive
To start the Master/Slave Position correction at first Bit 4 and then Bit 5 have to be set
in the Control word. Bit 5 is only allowed to be set when Bit 10 In Gear is shown in the
Status word.
By setting Bit 5 in the Control word the Slave drive is started to position to the Master
position + Offset.
The acceleration is done with Parameter Acceleration 1134. The used velocity can be
set up via Parameter Fast Speed 1132.
As long as the Master/Slave Position correction is executed, Bit 12 is deactivated in the
Status word. When the Master/Slave Position correction is finished successfully Bit 12
is set.
During the Correction sequence the Status word bit 8 “Master/Slave Position correction” is set to “Low”. As soon as the Master/Slave Position correction is finished or
cancelled, the Bit is set to “High”. After first switch-on (or after a device reset) the
“Phasing Done” bit is also “Low”.
Since Bit 8 is also used for Phasing, always the last started function is signaled by this
bit.
Offset Reference
The Offset for the M/S Synchronization can be set via M/S Synchronization offset
1284.
Parameters
No.
Description
Min.
M/S Synchronization -2147483647
1284
offset
u
Settings
Max.
2147483647 u
Factory setting
0u
Application limitations
The function can be used in most of all applications without any limitations. In applications with very long travelling distances the following must be checked:
• The position difference to be compensated must not be greater than 215-1
motor revolutions.
• The position difference to be compensated must not be greater than 231-1
user units.
Depending on the used reference system it can vary, which limit is decisive. Always
the smaller limit must be complied with.
A motor with a reference speed of 6000 rpm would have to travel for around 5.5
minutes into one direction to exceed this limit.
10/13
ACU Modbus/TCP
117
11.4.7.2 Example sequence
In order to start “Electronic Gear: Slave mode”, the correct sequence must be sent by
the PLC.
1 Control word =
0x0000
Disable voltage
1 Status word =
0x0050 Switch On Disabled
2 Modes of operation = -3
(Electronic Gear: Slave mode)
3 Control word =
Status word =
4 Control word =
Status word =
5 Control word =
Status word =
6a Control word =
Status word =
Status word =
Status word =
Status word =
6b Control word =
Status word =
7a Control word =
Status word =
7b Control word =
Status word =
7c Control word =
Status word =
7d Control word =
Status word =
8a Control word =
Status word =
8b Control word =
Status word =
8c Control word =
Status word =
8d Control word =
Status word =
9 Control word =
Status word =
118
0x0006
Shutdown
0x0031 Ready to switch on
0x0007
Switch On
0x0033 Switched On
0x000F
Operation enabled, reference speed “0”
0xnn37 Operation enabled
0x001F
Start electronic gear without direct synchronization
0xn327 Operation enabled, Slave not coupled (yet),
Phasing not finished.
0xn337 Operation enabled, Slave not coupled (yet),
Phasing finished.
0xn727 Operation enabled, Slave coupled, Phasing
not (yet) finished.
0xn737 Operation enabled, Slave coupled, Phasing
finished.
0x005F
Start Electronic Gear with Direct Synchronisation
See 6a See 6a
0x021F
Start Electronic Gear without Direct Synchronisation and Phasing Profile 1
See 6a See 6a
0x121F
Start Electronic Gear without Direct Synchronisation and Phasing Profile 2
See 6a See 6a
0x221F
Start Electronic Gear without Direct Synchronisation and Phasing Profile 3
See 6a See 6a
0x321F
Start Electronic Gear without Direct Synchronisation and Phasing Profile 4
See 6a See 6a
0x025F
Start Electronic Gear with Direct Synchronisation and Phasing Profile 1
See 6a See 6a
0x125F
Start Electronic Gear with Direct Synchronisation and Phasing Profile 2
See 6a See 6a
0x225F
Start Electronic Gear with Direct Synchronisation and Phasing Profile 3
See 6a See 6a
0x325F
Start Electronic Gear with Direct Synchronisation and Phasing Profile 4
See 6a See 6a
0x001F
Enable Operation, the Slave drive synchroniz0x003F
es to the Master position.
0xnn37 Operation enabled
0x1n37 M/S Position Correction finished.
ACU Modbus/TCP
10/13
WARNING
Dangerous state due to new mode!
If Override Modes Of Operation 1454 is changed during operation (control word =
0xnnnF), a dangerous state may occur in the new mode.
•
Before changing Override Modes Of Operation 1454, check the status word
(e.g. for status 0xnn33).
Once the sequence of the first four status words has been processed correctly, the ACU
is ready for operation (dark table area).
In state “operation enabled” (0xnnnF), the state of the Motion Control can be changed
(white table area).
Bit 4 “Start electronic gear” must be active during the movement. If bit 4 is reset to “0”,
the movement is interrupted.
As long as 0x0007 is active, the “Modes of Operation” can also be changed safely. Once
Override Modes Of Operation 1454 has been set to another value, operation can be
started with a corresponding sequence.
Bit 5 “Start Position Correction” is only allowed to be used when the Slave is in gear
(Status word Bit 10).
Bit 5 “Start Position Correction” should be used for optimum results when the master
drive doesn’t move.
When Bit 5 of the Control word is reset to “0” the movement is interrupted.
10/13
ACU Modbus/TCP
119
12 Actual values
Actual values
No.
Description
11
VABus SST error register
282
Bus reference frequency
283
Ramp reference frequency
411
Status word
12.1
Function
Modbus or VABus error register.
See chapter 7.2.9 “Exception condition codes”.
Reference value from serial interface / Modbus TCP.
Reference value from reference frequency channel.
Status word. See chapter 11.1 “Control via contacts/remote
contacts”.
Actual values Motion Control Interface / Motion Control Override
Actual values MCI/MCO
No.
Description
Function
1107
Act. Speed
Actual Speed in user units/Seconds [u/s]
1108
1109
Actual Position
Act. Contouring Error
Actual Position in user units [u]
Actual Contouring error in user units [u]
1129
Actual Master Speed
Actual Master Speed in user units/Seconds [u/s]
120
ACU Modbus/TCP
10/13
13 Parameter List
The parameter list is sorted numerically. For better overview, the parameters are marked
with pictograms:
The parameter is available in the four data sets.
The parameter value is set by the SET-UP routine
This parameter cannot be written when the frequency inverter is in operation.
13.1
Actual values (Menu “Actual”)
No.
11
228
240
249
260
270
274
282
283
411
1107
1108
1109
1129
1246
1249
1431
Actual value parameter
Unit
Indication range
RS485/RS232
VABusSST-Error-Register
0 ... 15
Actual values of frequency inverter
Internal reference frequency
Hz
-1000,00 ... 1000.00
-1
Actual speed
min
-60000 … 60000
Active dataset
0…4
Current error
0 ... 0xFFFF
Warnings
0 ... 0xFFFF
Warning application
0 ... 0xFFFF
Bus reference frequency
Hz
-999.99 … 999.99
Ramp reference frequency
Hz
-999.99 … 999.99
Bus control
Status word
0 ... 0xFFFF
Actual values of Motion Control Interface (MCI)
Act. Speed
u/s
-231 … 231-1
-2147483647 …
Actual Position
u
2147483647
-2147483647 …
Act. Contouring Error
u
2147483647
Act. Master Speed
u/s
-231 … 231-1
Actual Motion Block
-101), -3 … 32
Motion Block to Resume
-1 … 32
VABus/TCP
Description
Module Info
String
Chapter
7.2.9
11.3.3
11.3
11
14.5
14.3
14.4
12
12
11.2
12.1
11.4.5
VABus/TCP
manual
Parameters Current error 260, Warnings 270 and Application warnings 274 are only
accessible via Field Bus. They cannot be addressed via the VPlus control software or the
control unit.
10/13
ACU Modbus/TCP
121
13.2
Parameters (Menu “Para”)
No.
388
392
410
412
414
420
421
422
423
424
425
434
484
524
549
637
638
1104
1105
1106
1115
1116
1117
1118
1119
1120
1122
1123
1124
1125
1126
1127
122
Parameters
Unit
Setting range
Modbus/TCP
Bus Error Behaviour
0…5
Bus control
State Transition 5
Selection
Control word
0 … 0xFFFF
Local/Remote
Selection
Data set switching
Data set selection
0…4
Frequency ramps
Acceleration (Clockwise)
Hz/s
0.00 … 9999.99
Deceleration (Clockwise)
Hz/s
0.01 … 9999.99
Acceleration Anticlockwise
Hz/s
-0.01 … 9999.99
Deceleration Anticlockwise
Hz/s
-0.01 … 9999.99
Emergency Stop Clockwise
Hz/s
0.01 … 9999.99
Emergency Stop Anticlockwise
Hz/s
0.01 … 9999.99
Ramp Setpoint
Selection
Fixed frequency values
Reference frequency RAM
Hz
-999.99 … 999.99
Fixed percentages
Reference percentage RAM
%
-300.00 ... 300.00
Max. Control deviation
Max. control deviation
%
0.01 … 20.00
Stop behaviour
Switch-Off Threshold
%
0.0 … 100.0
Holding Time
s
0.0 … 200.0
Motion Control Interface (MCI): Position Controller
Time constant
ms
0 … 300
MCI: Contouring error monitoring
Warning Threshold
u
0 … 231-1
Error Threshold
u
0 … 231-1
MCI: Reference system
Feed Constant
1 … 2147483647
Gear Box: Driving Shaft Revolu1 … 65535
tions
Gear Box: Motor Shaft Revolutions
1 … 65535
MCI: Position Controller
Limit
u/s
0 … 231-1
MCI: Contouring error monitoring
Contouring error time
ms
0 … 65535
Fault reaction
Selection
MCI: Electronic gear
Master Position Source
Selection
Gear Factor Numerator
-32767 ... 32767
Gear Factor Denominator
1 ... 65535
Phasing: Offset
u
-(231-1) ... 231-1
Phasing: Speed
u/s
1 ... 231-1
Phasing: Acceleration
u/s2
1 ... 231-1
Description
ACU Modbus/TCP
Chapter
6.3
11.3.2
11.2
11
11
11.3
11.3.3
11.3.3
11.3.3
11
11.3.1
10.2.4
10.2.3
10.2.1
10.2.5
10.2.3
11.4.7
11.4.5
10/13
No.
1130
1132
1133
1134
1135
1142
1143
1165
1166
1168
1169
1176
1178
1179
1180
1275
1276
1277
1278
1279
1299
1432
1433
1434
1435
1436
1437
1440
1441
1439
1454
1455
1456
1457
1458
1459
1460
10/13
MCI: Homing
Description
Unit
Setting range
Homing Mode
0 … 35
Fast Speed
1 … 2147483647
Creep Speed
1 … 2147483647
Acceleration
1 … 2147483647
Ramp Rise Time
0 … 2000
MCI: Electronic gear
Resync. on Change of Gear-Factor
Selection
MCI: Limit switch fault reaction
Fault reaction
Selection
MCI: Target window
Target Window
u
0 … 220-1
Target Window Time
ms
1 … 65535
MCI: Electronic gear
In Gear'-Threshold
u
1 ... 231-1
In Gear'-Time
ms
1 … 65535
MCI: Profile Velocity mode [u/s]
Ramp Rise Time.
ms
0 … 2000
Ramp Fall Time.
ms
0 … 2000
MCI: Emergency Ramp
Emergency Ramp
u/s2
1 … 2147483647
System Bus
Operation mode
Selection
MCI: Profile Velocity mode [u/s]
Max. Slippage
ms
0 … 2147483647
Velocity Window
u/s
0 … 65535
Velocity Window Time
ms
0 … 65535
Threshold Window
u/s
0 … 65535
Threshold Window Time
ms
0 … 65535
Modbus/TCP
S. Special Function Generator
Selection
Modbus/TCP
IP address
Netmask
Gateway
DNS Server
DHCP Option
Selection
IP command
Selection
Email Function
Selection
Email Text (Body)
Text
Modbus/TCP Timeout
ms
0 … 60000
Motion Control Override
Selection
Override Modes Of Operation
-231-1…231-1 u
Override Target Position
u
-1…231-1 u/s
Override Profile Velocity
u/s
2
-1…231-1 u/s²
Override Profile Acceleration
u/s
-1…231-1 u/s²
Override Profile Deceleration
u/s2
-32768…32767 rpm
Override Target velocity vl [rpm]
rpm
-231-1…231-1 u/s
Override Target velocity pv [u/s]
u/s
ACU Modbus/TCP
Chapter
10.2.6
11.4.4
11.4.7
10.2.7
10.2.4
11.4.7
11.4.5
11.4.2
10.1
11.4.7
11.4.2
11.4.1
6.2
6.2.3
10.1
123
14 Appendix
14.1
List of control words
The tables on this page provide an overview of the functions of the control word bits.
Bit
Standard (no posi- Positioning without
tioning)
MCI
MCI:
Velocity Mode
MCI: Profile Veloci- MCI: Profile Posity Mode
tion Mode
0
Switch On
Switch On
Switch On
Switch On
Switch On
1
Enable Voltage
Enable Voltage
Enable Voltage
Enable Voltage
Enable Voltage
2
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
3
Enable Operation
Enable Operation
Enable Operation
Enable Operation
Enable Operation
4
Rfg enable
New setpoint
5
Rfg unlock
Change set immediately
6
Rfg use ref
Abs/rel
7
Fault reset
Fault reset
Fault reset
Fault reset
Fault reset
8
Halt
Halt
Halt
Halt
Halt
9
Change on setpoint
10
11
12
13
14
15
Bit
MCI: Homing
Mode
MCI: Table Travel MCI: Move away
record Mode
from Limit Sw.
MCI: Electronic
Gear: Slave
0
Switch On
Switch On
Switch On
Switch On
1
Enable Voltage
Enable Voltage
Enable Voltage
Enable Voltage
2
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
3
Enable Operation
Enable Operation
Enable Operation
Enable Operation
4
Homing operat.start Sequence mode
Move away from LS Start Gearing
5
6
Resume
Direct Sync
7
Fault reset
Fault reset
Fault reset
Fault reset
8
Halt
Halt
Halt
Halt
9
Start motion block
Start Phasing
10
11
Motion Block Select 0
12
Motion Block Select 1
Phasing Profile Sel. 1
13
Motion Block Select 2
Phasing Profile Sel. 2
14
Motion Block Select 3
15
Motion Block Select 4
124
ACU Modbus/TCP
10/13
14.2
Overview of status words
The tables on this page provide an overview of the functions of the status word bits.
Bit Standard (no posi- Positioning without
tioning)
MCI
MCI:
Velocity Mode
MCI: Profile Velocity Mode
MCI: Profile Position Mode
0
Ready to Switch On Ready to Switch On Ready to Switch On Ready to Switch On Ready to Switch On
1
Switched On
Switched On
Switched On
Switched On
Switched On
2
Operation enabled
Operation enabled
Operation enabled
Operation enabled
Operation enabled
3
Fault
Fault
Fault
Fault
Fault
4
Voltage enabled
Voltage enabled
Voltage enabled
Voltage enabled
Voltage enabled
5
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
6
Switch On Disabled
Switch On Disabled
Switch On Disabled
Switch On Disabled
7
Warning
Warning
Warning
Warning
Switch On Disabled
Warning
Remote
Remote
Remote
Remote
Target reached
Target reached
Target reached
Target reached
8
9
Homing done
Remote
10 Target reached
11 Internal limit active Internal limit active Internal limit active Internal limit active Internal limit active
12
Speed
Set-point acknowl.
13
Max slippage error
Following error
Warning 2
Warning 2
14
Target Pos. reached
15 Warning 2
Warning 2
MCI: Homing
Mode
Bit
Warning 2
MCI: Table Travel
record Mode
MCI: Move away
from Limit Sw.
MCI: Electronic
Gear: Slave
0
Ready to Switch On Ready to Switch On Ready to Switch On Ready to Switch On
1
Switched On
Switched On
Switched On
Switched On
2
Operation enabled
Operation enabled
Operation enabled
Operation enabled
3
Fault
Fault
Fault
Fault
4
Voltage enabled
Voltage enabled
Voltage enabled
Voltage enabled
5
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
Quick Stop
(low active)
6
Switch On Disabled
Switch On Disabled
Switch On Disabled
Switch On Disabled
7
Warning
Warning
Motion Block in
Progress
Remote
Warning
Warning
Remote
Remote
Target reached
Target reached
Target reached
8
9
Remote
10 Target reached
Phasing Done
11 Internal limit active Internal limit active Internal limit active Internal limit active
12 Homing attained
In gear
13 Homing error
Following error
Following error
14
15 Warning 2
10/13
Warning 2
Warning 2
ACU Modbus/TCP
Warning 2
125
14.3
Warning messages
The different control methods and the hardware of the frequency inverter include functions for continuous monitoring of the application. In addition to the messages documented in the frequency inverter user manual, further warning messages are activated by the Field Bus module. The bit-coded
warning reports are issued via parameter Warnings 270 according to the following pattern: Parameter Warnings 270 is provided for read-out via a PLC, Parameter Warnings 269 provides the information, including a brief description in VPlus and the control panel.
Bit no.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Warning
code
0x0001
0x0002
0x0004
0x0008
0x0010
0x0020
0x0040
0x0080
0x0100
0x0200
0x0400
0x0800
0x1000
0x2000
0x4000
0x8000
Warning messages
Description
Warning Ixt
Warning short-time Ixt
Warning long-time Ixt
Warning heat sink temperature Tk
Warning inside temperature Ti
Warning Limit
Warning Init
Motor temperature warning
Warning mains failure
Warning motor circuit breaker
Warning Fmax
Warning analog input MFI1A
Warning analog input A2
Warning System Bus
Warning Udc
Warning Application warning status 367
The meanings of the individual warnings are described in detail in the frequency inverter Operating Instructions.
126
ACU Modbus/TCP
10/13
14.4
Application warning messages
When the highest bit of the warning message is set, an “Application warning message” is present.
The application warning messages are bit-encoded as per the following pattern via parameter Application warnings 274. Parameter Application warnings 273 indicates the warnings as plain text in
the control panel and the VPlus PC control software.
Use parameter Application warnings 274 in order to read the warning messages via Field Bus.
Application warning messages
Bit no.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Warning
code
0x0001
0x0002
0x0004
0x0008
0x0010
0x0020
0x0040
0x0080
0x0100
0x0200
0x0400
0x0800
0x1000
0x2000
0x4000
0x8000
Description
BELT
SW-LIM CW
SW-LIM CCW
HW-LIM CW
HW-LIM CCW
CONT
ENC
User 1
User 2
(reserved)
(reserved)
(reserved)
(reserved)
(reserved)
(reserved)
(reserved)
- V-belt
– SW limit switch clockwise
– SW limit switch anticlockwise
– HW limit switch clockwise
– HW limit switch anticlockwise
– contouring error
– Warning Absolute encoder
– User Warning 1
– User Warning 2
For details on the warnings, refer to the frequency inverter Operating Instructions and
the “Positioning” application manual.
The Warning Bit 6 “Absolute encoder” can be read out via Parameter 1274 in VPlus or
1273 via field bus. The Absolute encoder warnings are described in detail in the Extension manual EM-ABS-01.
10/13
ACU Modbus/TCP
127
14.5
Error messages
The error code stored following a fault comprises the error group FXX (high-byte,
hexadecimal) and the code YY (low-byte, hexadecimal).
Motion
Control
Interface
Ethernet
Key
F04
04
F14
42
43
44
45
46
47
48
51
52
53
60
61
62
63
64
65
66
70
71
72
73
74
75
76
F15
xx
70
71
72
73
F27
14
Communication error
Meaning
Control deviation position controller
Pos. SW limit switch
Neg. SW limit switch
Pos. SW limit sw. < Neg. SW limit sw.
Pos. and Neg. HW-Lim Switch Simultaneously
Limit Switch Incorrect Wired
Pos. HW Limit Switch
Neg. HW Limit Switch
Switch: Pos. Dir. Blocked
Switch: Neg. Dir. Blocked
System bus-Synchronization not activated
Pos. HW Limit Sw.: Non-permissible signal source
Pos. HW Limit Sw.: Input deactivated by PWM /FF input
Pos. HW Limit Sw.: Input deactivated of index controller
Pos. HW Limit Sw.: wrong mode for MFI1
Pos. HW Limit Sw.: Input deactivated by encoder 1
Pos. HW Limit Sw.: Input deactivated by encoder 2
Pos. HW Limit Sw.: wrong mode for EM-S1IOD
Neg. HW Limit Sw.: Non-permissible signal source
Neg. HW Limit Sw.: Input deactivated by PWM /FF input
Neg. HW Limit Sw.: Input deactivated of index controller
Neg. HW Limit Sw.: wrong mode for MFI1
Neg. HW Limit Sw.: Input deactivated by encoder 1
Neg. HW Limit Sw.: Input deactivated by encoder 2
Neg. HW Limit Sw.: wrong mode for EM-S1IOD
User-Defined Error in Motion Block xx (1 £ xx £ 32)
No Homing Done
Homing Encoder-Mode w.o. Z-Impulse
Both Directions Locked
No Touch Probe Signal Detected
Communication loss to PLC
The current error can be read via parameter Current error 260.
Parameter Current error 259 indicates the current error as plain text in the control
panel and the VPlus PC control software.
In addition to the error messages mentioned, there are other error messages specified in the Operating Instructions. The errors of the Motion Control Interface (F14xx,
F15xx) are described in detail in the “Positioning” application manual.
128
ACU Modbus/TCP
10/13
14.6
Conversions
The speeds/frequencies can be converted to other speed formats using the formulas in this chapter:
Frequency [Hz] into
Speed [1/min] in
Speed into user units per second
[u/s] into
14.6.1
 [Hz] =
See Chapter 14.6.2
See Chapter 14.6.4
Frequency [Hz]
See Chapter 14.6.3
See Chapter 14.6.1
See Chapter 14.6.6
See Chapter 14.6.5
Speed [1/min] into frequency [Hz]
[min-1 ] × .    (. 373)
60
14.6.2
[rpm] =
14.6.3
speed [1/min]
Speed into user units per second
[u/s]
Frequency [Hz]
Speed into user units per second
[u/s]
Speed [1/min]
Frequency [Hz] into speed [1/min]
 [Hz] × 60
.    (. 373)
Speed in user units per second [u/s] into frequency[Hz]
u
.    (. 373)  :  ℎ  (. 1117)
 [Hz] =  [ ] ×
×
s
  (. 1115)  :  ℎ (. 1116)
14.6.4
Frequency [Hz] into speed in user units per second [u/s]
u
  (. 1115)  :  ℎ (. 1116)
 [ ] =  [Hz] ×
×
s
.    (. 373)  :  ℎ  (. 1117)
14.6.5
Speed in user units per second [u/s] into speed [1/min]
u
  (. 1115)  :  ℎ (. 1116)
 [ ] =  [Hz] ×
×
s
.    (. 373)  :  ℎ  (. 1117)
14.6.6
Speed [1/min] into speed in user units per second [u/s]
u
  (. 1115)  :  ℎ  (. 1116)
 [ ] =  [rpm] ×
×
s
60
 :  ℎ  (. 1117)
10/13
ACU Modbus/TCP
129
Index
A
Acknowledging error messages ................... 40
Act. Position ............................................... 59
Actual values............................................ 120
Application warning messages ................... 127
Application warnings................................. 127
Assembly
Communication module ........................... 19
B
Bus Error behavior...................................... 25
Bus reference frequency ........................... 120
C
Client/Server .............................................. 26
Contouring errors ....................................... 59
Control
Contacts ................................................. 64
Remote contacts ..................................... 64
Copyright ..................................................... 6
Current position ......................................... 59
D
Decommissioning ....................................... 14
Designated use ............................................ 8
Disassembly
Communication module ........................... 20
E
Electrical connections ................................. 13
Electronic Gear Slave mode ....................... 109
Error messages ........................................ 128
Example sequence
Electronic Gear
Slave mode (Electronic gear
Slave) ............................................ 118
Move away from limit switch .................. 108
Profile Velocity mode [u/s] ...................... 85
Table travel mode ................................. 104
Without Motion control ............................ 75
Example telegrams ..................................... 44
Exception condition code ............................ 39
F
Function code ............................................ 27
G
General Information about the Documentation
................................................................ 5
H
Homing................................................ 59, 61
Homing mode ............................................ 94
I
Index Parameter
130
Write ..................................................... 43
Index parameters
Read...................................................... 43
Installation ................................................ 13
L
Local/Remote ............................................ 63
M
Maintenance .............................................. 14
Master/Slave Position Correction ................ 116
Motion Control Interface (MCI) ................... 52
Motion Control Override ............................. 53
Move away from limit switch mode ............ 105
P
Parameter access
Read index parameters ........................... 43
Write index parameter ............................ 43
Parameter List .......................................... 121
Position Controller...................................... 60
Position deviation....................................... 60
Profile Position mode ................................. 86
Profile Velocity mode [u/s] ......................... 81
Protocol .................................................... 26
R
Ramp reference frequency ........................ 120
Reference system ...................................... 58
S
Safety
General .................................................... 7
Sequence example
Homing mode ........................................ 96
Velocity mode ........................................ 80
State machine
Device control ........................................ 67
Storage ..................................................... 13
T
Table travel record mode ........................... 97
Target window .......................................... 59
TCP/IP address .......................................... 24
Telegram
structure ................................................ 26
Transition 5 of state machine ..................... 73
Transport .................................................. 13
V
VABusSST Error Register ............................ 39
Velocity mode [rpm] .................................. 77
W
Warning messages .................................... 126
Warranty and liability ................................... 6
ACU Modbus/TCP
10/13
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