Danfoss MCA 104 Programming guide

MAKING MODERN LIVING POSSIBLE

Programming Guide VLT® DeviceNet MCA 104

VLT® Frequency Converter Series • FC 102 • FC 202 • FC 301/302

vlt-drives.danfoss.com

Contents	Programming Guide

Contents

1 Introduction	3
1.1 Purpose of the Manual	3
1.2 Additional Resources	3
1.3 Document and Software Version	3
1.4 Product Overview	3
1.5 Approvals and Certi€cations	4
1.6 Symbols, Abbreviations and Conventions	4
2 Safety	5
2.1 Safety Symbols	5
2.2 Quali€ed Personnel	5
2.3 Safety Precautions	5
3 Configuration	7
3.1 Con€gure the DeviceNet Network	7
3.2 Con€gure the Master	8
3.3 Con€gure the Frequency Converter	8
4 Control	9
4.1 DeviceNet Process Control Modes	9
4.2 I/O Assembly Instances	10
4.3 Process Data	10
4.4 ODVA Control Pro€le	11
4.5 FC Control Pro€le	13
5 Parameter Access	17
5.1 Explicit Messages	17
5.2 Object Classes	17
5.3 DeviceNet Object Classes	18
5.4 Danfoss Object Classes	27
6 Parameters	28
6.1 Parameter Description	28
6.2 Parameter List	36
6.3 Data Types Supported	37
7 Application Examples	38
7.1 Example: Working with Instance 101/151 Process	38
8 Troubleshooting	40
8.1 LED Status	40
8.2 No Communication with the Frequency Converter	41

MG92F102

Contents

VLT® DeviceNet MCA 104

8.3 Frequency Converter Does Not Respond to Control Signals	41
8.4 Warnings and Alarms	44
Index	46

MG92F102

Introduction Programming Guide

1 Introduction	1	1
1 Introduction

1.1 Purpose of the Manual

The VLT® DeviceNet MCA 104 Programming Guide provides information about con€guring the system, controlling the frequency converter, parameter access, programming, troubleshooting, and some typical application examples. The programming guide is intended for use by quali€ed personnel who are familiar with the VLT® frequency converter, with DeviceNet technology, and with the PC or PLC that is used as a master in the system.

Read the instructions before programming and follow the procedures in this manual.

VLT® is a registered trademark.

1.2 Additional Resources

Resources available for the VLT® frequency converter and optional equipment:

•The VLT® Operating Instructions provide the necessary information for getting the VLT® frequency converter up and running.

•The VLT® Design Guide provides detailed information about capabilities and functionality to design motor control systems.

•The VLT® Programming Guide provides greater detail on working with parameters and many application examples.

•The VLT® DeviceNet MCA 104 Installation Guide provides information about installing the DeviceNet and troubleshooting.

•The VLT® DeviceNet MCA 104 Programming Guide provides information about con€guring the system, controlling the VLT® frequency converter, parameter access, programming, troubleshooting, and some typical application examples.

Supplementary publications and manuals are available from Danfoss. See vlt-drives.danfoss.com/Support/Technical- Documentation/ for listings.

1.3 Document and Software Version

This manual is regularly reviewed and updated. All suggestions for improvement are welcome. Table 1.1 shows the document version and the corresponding software version.

Edition	Remarks	Software version

MG92F1xx	First edition.	4.4x

Table 1.1 Document and Software Version

1.4 Product Overview

This programming guide relates to the DeviceNet interface. Ordering number:

•130B1102 (non-coated version).

•130B1210 (conformal coated version).

DeviceNet is a low-level network that standardizes communications between industrial devices (sensors, limit switches, motor controls) and high-level devices (controllers). DeviceNet follows the Open Systems Interconnection (OSI) model and is based on CAN technology for media access control and physical signaling.

DeviceNet systems can be con€gured to operate in a master/slave or a distributed control architecture using peer-to-peer communication. Up to 63 nodes in a multidrop network topology are supported. By using the same cable for communication, communication options can be powered directly from the bus. Nodes can be removed or inserted without powering down the network.

Each node on the network has its own unique media access control identi€er (MAC ID) to distinguish it on the network. The access control is based on the CSMA/CA (carrier sense multiple access/collision avoidance) principle, meaning that all nodes may have access to the network at the same time. When 2 nodes attempt to get control of the network bus simultaneously, the CAN protocol resolves the issue by arbitration. In this way, collisions on the network are avoided.

DeviceNet de€nes device pro€les for devices belonging to speci€c classes. For other devices, de€ne a custom class to make it DeviceNet compatible. All the above enhances the interchangeability and interoperability of the network.

	24 V		<![if ! IE]> <![endif]>195NA228.10
	24 V
		Power supply
Trunk line
RT			RT
			1
1	1	1

Drop lines 1

RT=Termination resistors

Illustration 1.1 Topology

MG92F102

Introduction

VLT® DeviceNet MCA 104

1 1 VLT® DeviceNet MCA 104 is designed to communicate with any master abiding by the DeviceNet standard. It is intended for use with:

• VLT® HVAC Drive FC 102

• VLT® AQUA Drive FC 202

• VLT® AutomationDrive FC 301/FC 302

1.5 Approvals and Certi€cations

More approvals and certi€cations are available. For more information, contact a local Danfoss partner.

1.6Symbols, Abbreviations and

Conventions

Abbreviation	Definition

ACK	ACKnowledge

BOC	Bus o‚ counter

BOOL	Boolean expression

CAN	Controller area network

CSMA/CA	Carrier sense multiple access/collision avoidance

COS	Change of state

CTW	Control word

EDS	Electronic data sheet

EMC	Electromagnetic compatibility

ETR	Electronic thermal relay

FIFO	First in €rst out

HF	High frequency

HPFB	High performance €eldbus

I/O	Input/output

ISO	International standards organization

LCD	Liquid crystal display

LED	Light emitting diode

LSB	Least signi€cant bit

MAC ID	Media access control identi€er

MAV	Main actual value

MRV	Main reference value

MSB	Most signi€cant bit

N/A	Not applicable

ODVA	Open DeviceNet Vendor Association

OSI	Open systems interconnection

PC	Personal computer

PCD	Process data

PIW	Peripheral input word

PLC	Programmable logic control

PNU	Parameter number

PPO	Parameter-process data object

QW	Peripheral output word

Abbreviation	Definition

SINT	Signed integer

STW	Status word

VSD	Variable speed drive

UDINT	Unsigned double integer

UNIT	Unsigned integer

USINT	Unsigned short integer

Table 1.2 Symbols and Abbreviations

Conventions

Numbered lists indicate procedures.

Bullet lists indicate other information.

Italicized text indicates:

•Cross reference.

•Link.

•Parameter name.

•Parameter group name.

•Parameter option.

•Footnote.

MG92F102

Safety	Programming Guide

2 Safety

2.1 Safety Symbols

The following symbols are used in this manual:

WARNING

Indicates a potentially hazardous situation that could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that could result in minor or moderate injury. It can also be used to alert against unsafe practices.

NOTICE

Indicates important information, including situations that can result in damage to equipment or property.

2.2 Quali€ed Personnel

Correct and reliable transport, storage, installation, operation, and maintenance are required for the troublefree and safe operation of the frequency converter. Only quali€ed personnel are allowed to install and operate this equipment.

Quali€ed personnel are de€ned as trained sta‚, who are authorized to install, commission, and maintain equipment, systems, and circuits in accordance with pertinent laws and regulations. Additionally, the quali€ed personnel must be familiar with the instructions and safety measures described in these operating instructions.

2.3 Safety Precautions

WARNING

HIGH VOLTAGE

Frequency converters contain high voltage when connected to AC mains input, DC supply, or load sharing. Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious injury.

•Only qualified personnel must perform installation, start-up, and maintenance.

2 2

WARNING

UNINTENDED START

When the frequency converter is connected to AC mains, DC supply, or load sharing, the motor may start at any time. Unintended start during programming, service, or repair work can result in death, serious injury, or property damage. The motor can start with an external switch, a fieldbus command, an input reference signal from the LCP or LOP, via remote operation using MCT 10 Set-up Software, or after a cleared fault condition.

To prevent unintended motor start:

•Press [Off/Reset] on the LCP before programming parameters.

•Disconnect the frequency converter from the mains.

•Completely wire and assemble the frequency converter, motor, and any driven equipment before connecting the frequency converter to AC mains, DC supply, or load sharing.

WARNING

DISCHARGE TIME

The frequency converter contains DC-link capacitors that can remain charged even when the frequency converter is not powered. Failure to wait the specified time after power has been removed before performing service or repair work can result in death or serious injury.

•Stop the motor.

•Disconnect the AC mains and remote DC-link supplies, including battery back-ups, UPS, and DC-link connections to other frequency converters.

•Disconnect or lock the PM motor.

•Wait for the capacitors to discharge fully before performing any service or repair work. The waiting time is specified in the relevant frequency converter operating instructions,

Chapter 2 Safety.

WARNING

LEAKAGE CURRENT HAZARD

Leakage currents exceed 3.5 mA. Failure to ground the frequency converter properly can result in death or serious injury.

•Ensure the correct grounding of the equipment by a certified electrical installer.

MG92F102

Safety VLT® DeviceNet MCA 104

WARNING

EQUIPMENT HAZARD

2 2 Contact with rotating shafts and electrical equipment can result in death or serious injury.

•Ensure that only trained and qualified personnel perform installation, start-up, and maintenance.

•Ensure that electrical work conforms to national and local electrical codes.

•Follow the procedures in this guide.

CAUTION

INTERNAL FAILURE HAZARD

An internal failure in the frequency converter can result in serious injury when the frequency converter is not properly closed.

•Ensure that all safety covers are in place and securely fastened before applying power.

MG92F102

Configuration	Programming Guide

3 Con€guration

3.1 Con€gure the DeviceNet Network

All DeviceNet stations that are connected to the same bus network must have a unique station address. Select the DeviceNet address of the frequency converter via:

•Address switches (default 63).

•Parameter 10-02 MAC ID (default 63).

•Class code 0X03, instance 1, attribute 1.

Illustration 3.1 VLT® DeviceNet MCA 104 Interface

3.1.1Setting the DeviceNet Address using the Address Switches

NOTICE

Switch off the power supply before changing the address switches. The address change comes into effect at the next power-up, and can be read in parameter 10-02 MAC ID.

Set the address switches to give the option a unique ID. Select an address range from 0–63 (factory setting 63) according to Table 3.1.

Switch	8	7	6	5	4	3	2	1

Address value	–	–	+32	+16	+8	+4	+2	+1

5	–	–	OFF	OFF	OFF	ON	OFF	ON

20	–	–	OFF	ON	OFF	ON	OFF	OFF

35	–	–	ON	OFF	OFF	OFF	ON	ON

Table 3.1 Settings for the Address Switches

3.1.2 Setting the DeviceNet Address via
Parameter 10-02 MAC ID	3	3
	3	3

Set the address via parameter 10-02 MAC ID if the hardware switches are set to 63 (factory setting). The address change comes into e‚ect at the next power-up.

3.1.3Setting the DeviceNet Address with the Object Class Code 0x03, Instance 1, Attribute 1

Set the address via the DeviceNet object class code 0x03 attribute 1 command when the address switch is set to 63 (factory setting). A new address becomes e‚ective immediately after the class code 0x03, instance 1, attribute 1 command.

3.1.4 Setting the Baud Rate

All DeviceNet stations connected to the same bus network must have the same baud rate. Select the baud rate of the frequency converter via:

•Address switches.

•Parameter 10-01 Baud Rate Select (default 125 kBd).

•Object class code 0x03, instance 1, attribute 2.

3.1.5Setting the DeviceNet Baud Rate using the Address Switches

NOTICE

Switch off the power supply before changing the address switches. The baud rate change comes into effect at the next power-up, and can be read in parameter 10-01 Baud Rate Select.

Use the address switches to select a baud rate of 125 k baud (factory setting), 250 k baud, or 500 k baud, see

Table 3.2:

Baud rate switch	8	7

Parameter 10-01 Baud Rate Select	1	1

125 kBd	0	0

250 kBd	0	1

500 kBd	1	0

Table 3.2 Address Switches

MG92F102

Configuration

VLT® DeviceNet MCA 104

3.1.6Setting the DeviceNet Baud Rate via Parameter 10-01 Baud Rate Select

Set the baud rate via parameter 10-01 Baud Rate Select if the address switches 1 and 2 are set to ON (factory

3 3 setting). The baud rate change comes into e‚ect at the next power-up.

3.1.7Setting the DeviceNet Baud Rate with the Object Class Code 0x03, Attribute 2

Set the baud rate via the DeviceNet object class code 0x03 attribute 2 command, when the address switches 1 and 2 are set to ON (factory setting). A new baud rate becomes e‚ective immediately after the class code 0x03 attribute 2 command.

3.2 Con€gure the Master

3.2.1 EDS File

A large part area of the system con€guration is the setting of application-related parameters. EDS (Electronic Data Sheet) €les simplify the setting up of most of the DeviceNet con€gurable parameters. For o‚-line con€guration, Danfoss provides a generic English EDS €le covering all voltage and power sizes. Download the EDS €le from www.danfoss.com/drives.

NOTICE

The EDS file does not contain all parameters. It contains only a selected, limited number of parameters with generic minimum, maximum, and default values.

3.3Con€gure the Frequency Converter

3.3.1Frequency Converter Parameters

Note the following parameters when con€guring the frequency converter with a DeviceNet interface. Refer to chapter 6 Parameters for more details of each parameter.

•Parameter 0-40 [Hand on] Key on LCP.

If the Hand key on the frequency converter is activated, control of the frequency converter via the DeviceNet interface is disabled. After initial power-up the frequency converter automatically detects whether a €eldbus option is installed in slot A, and sets parameter 8-02 Control Word Source to [3] Option A. If an option is added to, changed in, or removed from an already commissioned frequency converter, it does not change parameter 8-02 Control Word Source but enters trip mode, and the frequency converter shows an error.

•Parameter 8-10 Control Word Profile (see

chapter 4 Control). Select between the Danfoss FC Pro€le and the ODVA pro€le. Select the desired DeviceNet instance in parameter 10-10 Process Data Type Selection.

•Parameter 8-50 Coasting Select to parameter 8-56 Preset Reference Select (see

chapter 6 Parameters). Selection of how to gate the DeviceNet control commands with digital input command of the control card.

NOTICE

When parameter 8-01 Control Site is set to [2] Control word only, the settings in parameter 8-50 Coasting Select to parameter 8-56 Preset Reference Select is overruled, and all act on bus control.

•Parameter 8-03 Control Word Timeout Time to parameter 8-05 End-of-Timeout Function. The reaction in the event of a bus timeout is set via these parameters.

•Parameter 10-10 Process Data Type Selection. Default is 125 kbps.

•Parameter 10-02 MAC ID. Default is 63.

MG92F102

Control	Programming Guide

4 Control

4.1 DeviceNet Process Control Modes

This section describes 2 of 3 possible process control modes:

•Polling.

•Change of state (COS).

The 3rd FC control mode uses the acyclic mode explicit messaging via the standard DeviceNet control supervisory object class 29H. The control supervisory object is described in chapter 5.3 DeviceNet Object Classes.

4.1.2 Change of State, COS

4.1.1 Polling

Table 4.1 is a classic master/slave connection and the standard DeviceNet operating mode. The master controls the data exchange by sending cyclic poll-requests to the

connected slave, and the slave answers by sending a poll- 4 4 response to the master. The master can control and

monitor the frequency converter by polling the DeviceNet or Danfoss objects (I/O instances).

Master	Slave
Master	Slave	CTW	MRV
Slave	Master

		STW	MAV

Table 4.1 Standard DeviceNet Operation Mode - Polled I/O

COS is an event-controlled operating mode used to minimize network traffic. Messages are transmitted only if a de€ned state or value has changed. The condition for triggering a COS message is determined by the insertion of COS-€lters (parameter 10-20 COS Filter 1 to parameter 10-23 COS Filter 4), for each bit in the di‚erent PCD words. The €lter acts like a logical AND function: If a bit in the €lter is set to 1, the COS function triggers after a change to the corresponding bit for the PCD word.

Illustration 4.1 Different PCDs and the Corresponding Filter Parameters

Parameter 10-20 COS Filter 1 to parameter 10-23 COS Filter 4 can be used to €lter out undesired events for COS. If a €lter bit is set to 0, the corresponding I/O instance bit is unable to produce a COS message. By default, all bits in the COS €lters are set to 0.

To signal that the connection has not been interrupted, or the device is not powered o‚, a heartbeat message is transmitted within a speci€ed time interval (heartbeat interval). This interval is de€ned in attribute heartbeat time of the connection object, class code 0x05.

To prevent the device from producing heavy network traffic if a value changes frequently, the production inhibit time (an attribute of the connection object) is de€ned. This parameter de€nes the minimum time between 2 COS messages.

MG92F102

Control

VLT® DeviceNet MCA 104

The attribute expected package rate de€nes the maximum time between 2 COS messages even when the value is unchanged. In the event of COS connection, the explicit package rate is identical with the heartbeat interval mentioned above. This timer is used both as transmission trigger and inactivity watchdog, depending on whether the connection is producer or consumer.

4.2 I/O Assembly Instances

I/O assembly instances are several de€ned process control objects with de€ned content comprising control and status

information. Illustration 4.2 shows the I/O assembly instance options for controlling and monitoring the frequency converter.

4 4

Illustration 4.2 I/O Assembly Instance Options

4.3 Process Data

Process data comprises the control and status data in the I/O assembly instances.

The CTW, MRV, STW, and MAV have de€ned formats and functions, depending on the I/O instance selected. PCD 3 and PCD 4 are freely con€gurable, for instance 101/151 via parameter 10-11 Process Data Config Write and parameter 10-12 Process Data Config Read.

All PCDs are freely con€gurable for instance 102/152.

DeviceNet provides a flexible way to customize the number of process data (I/O words) and the functionality of each word. To activate the user de€nable process data, select the I/O instance 101/151 in parameter 10-10 Process Data Type Selection. This changes the I/O size to 4 words in the input and output area. This selection uses the Danfoss-speci€c pro€le for the control word and status word as well as for the main reference value/main actual value.

The €rst 2 words are €xed on the DeviceNet, whereas PCD 3 and PCD 4 are user con€gurable. The number of PCDs active in a system is €xed to 2 words.

NOTICE

To select [1] Instance 101/151 in parameter 10-10 Process Data Type Selection, set parameter 8-10 Control Word Pro€le to [0] FC pro€le.

To enable use of PCD data from the DeviceNet, con€gure the contents of each single PCD word in parameter 10-11 Process Data Config Write and parameter 10-12 Process Data Config Read. Changes to parameter 10-11 Process Data Config Write and parameter 10-12 Process Data Config Read are e‚ected immediately in the PCD data.

MG92F102

Control	Programming Guide

Instanc e	Originator (PLC) --> Target (Drive)				Instanc e	Target (Drive) --> Originator (PLC)

20	CTW	REF			70	STW	MA V


21	CTW	REF			71	STW	MA V


100	CTW	REF			150	STW	MA V


101	CTW	REF	PCD 2	PCD 3	151	STW	MA V	PCD 2	PCD 3
101	CTW	REF	write	write	151	STW	MA V	read	read
			write	write				read	read

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4 4

Byte #	1		2	3		4	5		6	7		8	Byte #	1		2	3		4	5		6	7		8
Byte #	1		2	3		4	5		6	7		8	Byte #	1		2	3		4	5		6	7		8
													Word #
Word #		1			2			3			4		Word #		1			2			3			4

				Fixed contents									User de ned contents
				Fixed contents									User de ned contents

Illustration 4.3 Process Data

4.4 ODVA Control Pro€le

4.4.1Control Word under Instances 20/70 and 21/71

Set parameter 8-10 Control Word Profile to ODVA and select the instance in parameter 10-10 Process Data Type Selection.

Illustration 4.4 The Control Word in Instances 20 and 21

NOTICE

The bits 00 and 02 in instance 20 are identical with bits 00 and 02 in the more extensive instance 21.

Bit	Instance 20		Instance 21

	Bit = 0	Bit = 1	Bit = 0	Bit = 1

00	Stop	Run Fwd	Stop	Run Fwd

01	–	–	Stop	Run Rev

02	No function	Fault reset	No function	Fault reset

03	–	–	–	–

04	–	–	–	–

05	–	–	–	Net Ctrl

06	–	–	–	Net Ref

07–15	–	–	–	–

Table 4.2 Bits in Instances 20 and 21

Explanation of the bits: Bit 0, Run Fwd

Bit 0 = 0: The frequency converter has a stop command. Bit 0 = 1: Leads to a start command, and the frequency converter runs the motor clockwise.

Bit 1, Run Rev

Bit 1 = 0: Leads to a stop of the motor.

Bit 1 = 1: Leads to a start reverse of the motor, and the frequency converter runs the motor counterclockwise.

Bit 2, Fault Reset

Bit 2 = 0: There is no reset of a trip. Bit 2 = 1: A trip is reset.

Bit 3, No function

Bit 3: No function.

Bit 4, No function

Bit 4: No function.

Bit 5, Net Control

Bit 5 = 0: The frequency converter is controlled via the standard inputs.

Bit 5 = 1: The DeviceNet controls the frequency converter.

NOTICE

Changes affect parameter 8-50 Coasting Select to parameter 8-56 Preset Reference Select.

Bit 6, Net Reference

Bit 6 = 0: Reference is from the standard inputs. Bit 6 = 1: Reference is from DeviceNet.

MG92F102

Control

VLT® DeviceNet MCA 104


			NOTICE
		Changes affect parameter 3-15 Reference Resource 1 to
		parameter 3-17 Reference Resource 3.
		For the speed reference, see chapter 4.4.3 Bus Speed
		Reference Value under Instances 20/70 and 21/71.
		4.4.2 Status Word under Instances 20/70
4	4	4.4.2 Status Word under Instances 20/70
4	4			and 21/71

Illustration 4.5 Status Word in Instances 70 and 71

NOTICE

The bits 00 and 02 in instance 70 are identical with bits 00 and 02 in the more extensive instance 71.

Bit	Instance 70		Instance 71

	Bit = 0	Bit = 1	Bit = 0	Bit = 1

00	–	Fault	–	Fault

01	–	–	–	Warning

02	–	Running 1	–	Running 1
		Fwd		Fwd

03	–	–	–	Running 2
				Rev.

04	–	–	–	Ready

05	–	–	–	Control
				from Net

06	–	–	–	Reference
				from Net

07	–	–	–	At
				reference

08–15	–	–	State attribute

Table 4.3 Bits in Instances 70 and 71

Explanation of the bits: Bit 0, Fault

Bit 0 = 0: There is no fault in the frequency converter. Bit 0 = 1: There is a fault in the frequency converter.

Bit 1, Warning

Bit 0 = 0: There is no unusual situation.

Bit 0 = 1: An abnormal condition has arisen.

Bit 2, Running 1

Bit 2 = 0: The frequency converter is not in the running forward state, or run 1 is not set.

Bit 2 = 1: The frequency converter state attribute is enabled or stopping, or that fault-stop and bit 0 (run 1) of the control word are set at the same time.

Bit 3, Running 2

Bit 3 = 0: The frequency converter is not in the running reverse state, or run 2 is not set.

Bit 3 = 1: The frequency converter state attribute is enabled or stopping, or fault-stop and bit 0 (run 2) of the control word are set at the same time.

Bit 4, Ready

Bit 4 = 0: The state attribute is in another state.

Bit 4 = 1: The state attribute is ready, enabled, or stopping.

Bit 5, Control from net

Bit 5 = 0: The frequency converter is controlled from the standard inputs.

Bit 5 = 1: The DeviceNet has control (start, stop, reverse) of the frequency converter.

Bit 6, Ref from net

Bit 6 = 0: The reference comes from inputs to the frequency converter.

Bit 6 = 1: The reference comes from the DeviceNet.

Bit 7, At reference

Bit 7 = 0: The motor is running, but the present speed is di‚erent from the preset speed reference, for example, the speed is being ramped up/down during start/stop.

Bit 7 = 1: The frequency converter and reference speeds are equal.

Bit 8–15, State attribute

(Instance 71 only)

Represents the state attribute of the frequency converter, as indicated in Table 4.4.

Bit number

Meaning

8(Vendor speci€c)

9Start up

10Not ready

11Ready

12Enabled

13Stopping

14Fault stop

15Faulted

Table 4.4 State Attribute (Instance 71)

For more details of the actual output speed, see

chapter 4.4.4 Actual Output Speed under Instances 20/70 and 21/71.

4.4.3Bus Speed Reference Value under Instances 20/70 and 21/71

The speed reference value is transmitted to the frequency converter as a 16-bit word. The value is transmitted as a whole number. Negative €gures are formatted by 2’s complement.

MG92F102

Control	Programming Guide

Illustration 4.6 Speed Reference Value

The bus speed reference has the following format:

Parameter 3-00 Reference Range = 0 [refMIN to refMAX] 0 (0000 hex) [RPM] to + 32767 (7FFF hex) [RPM]

Parameter 3-00 Reference Range = 1 [-refMAX to +refMAX] -32767 (8001 hex ) to +32767 [RPM] (7FFF hex)

The actual reference [Ref. %] in the frequency converter depends on the settings in the following parameters:

Parameter 1-23 Motor Frequency Parameter 1-25 Motor Nominal Speed Parameter 3-03 Maximum Reference

NOTICE

When the bus speed reference is negative, and the control word contains a run reverse signal, the frequency converter runs clockwise (- - is +).

Example:

Parameter 1-25 Motor Nominal Speed = 1420 RPM Parameter 1-23 Motor Frequency = 50 Hz Parameter 3-03 Maximum Reference = 1420 RPM

To run the motor at 25%, the reference transmitted must be: (1420x0.25) = 355 = 16.3 hex

163 hex 25% Fout = 12.5 Hz

4.4.4Actual Output Speed under Instances 20/70 and 21/71

Illustration 4.7 Actual Output Speed Value

The value of the actual speed of the motor, is transmitted in the form of a 16-bit word.

The value is transmitted as a whole number (negative €gures are formed with 2's complement).

-32767 (8000 hex) [RPM] to +32767 [RPM] (7FFF hex) [RPM]

4.5 FC Control Pro€le

4.5.1 Control Word under Instances 100/150, 101/151, and 102/152

To select FC protocol in the control word, set
parameter 8-10 Control Word Profile to [0] FC profile. The
control word is used to send commands from a master
(PLC or PC) to a slave (frequency converter).	4	4
	4	4

Illustration 4.8 Control Words in Instances 100, 101, and 102

Bit	Bit value = 0	Bit value = 1

00	Reference value	External selection lsb

01	Reference value	External selection msb

02	DC brake	Ramp

03	Coasting	No coasting

04	Quick stop	Ramp

05	Hold output frequency	Use ramp

06	Ramp stop	Start

07	No function	Reset

08	No function	Jog

09	Ramp 1	Ramp 2

10	Data invalid	Data valid

11	No function	Relay 01 active

12	No function	Relay 04 active

13	Parameter set-up	Selection lsb

14	Parameter set-up	Selection msb

15	No function	Reverse

Table 4.5 Bits in Instances 100, 101, and 102

Explanation of the control bits: Bits 00/01

Bits 00 and 01: Select between the 4 reference values, which are pre-programmed in parameter 3-10 Preset Reference according to Table 4.6.

Programmed	Parameter		Bit 01	Bit 00
reference
value

1	3-10	[0]	0	0

2	3-10	[1]	0	1

3	3-10	[2]	1	0

4	3-10	[3]	1	1

Table 4.6 Reference Values

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