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DeviceNet
CFW-11
Communication Manual
Language: English
DeviceNet Communication Manual
Series: CFW-11
Language: English
Document Number: 10000104642 / 02
Publication Date: 02/2012
Summary
ABOUT THIS MANUAL ................................................................................................................................................ 5
ABBREVIATIONS AND DEFINITIONS ................................................................................................................................... 5
NUMERICAL REPRESENTATION .......................................................................................................................................... 5
DOCUMENTS ................................................................................................................................................................... 5
1
INTRODUCTION TO THE DEVICENET COMMUNICATION ....................................................................... 6
1.1 CAN ................................................................................................................................................................... 6
1.1.1
Data Frame ............................................................................................................................................... 6
1.1.2
Remote Frame .......................................................................................................................................... 6
1.1.3
Access to the Network ............................................................................................................................. 6
1.1.4
Error Control ............................................................................................................................................. 6
1.1.5
CAN and DeviceNet ................................................................................................................................ 7
1.2 DEVICENET .......................................................................................................................................................... 7
1.2.1
Introduction............................................................................................................................................... 7
1.2.2
Physical Layer ........................................................................................................................................... 7
1.2.3
Data Link Layer ........................................................................................................................................ 8
1.2.4
Network and Transport Layer ................................................................................................................ 8
1.2.5
Application Layer – CIP Protocol............................................................................................................ 9
1.2.6
Configuration File .................................................................................................................................... 9
1.2.7
Communication Modes ......................................................................................................................... 10
1.2.8
Set of Predefined Master/Slave Connections .................................................................................... 10
2
ACCESSORY KITS ................................................................................................................................................. 11
2.1 CAN INTERFACES .............................................................................................................................................. 11
2.1.1
CAN-01 Kit .............................................................................................................................................. 11
2.1.2
CAN/RS485-01 Kit................................................................................................................................. 11
2.1.3
Connector Pinout.................................................................................................................................... 11
2.1.4
Power Supply .......................................................................................................................................... 12
2.2 CONNECTION WITH THE NETWORK ................................................................................................................... 12
2.3 MODULE CONFIGURATION ................................................................................................................................ 12
2.4 ACCESS TO THE PARAMETERS.............................................................................................................................. 13
3
INVERTER PROGRAMMING............................................................................................................................. 14
3.1 SYMBOLS FOR PROPRIETY DESCRIPTION ............................................................................................................. 14
P0105 – 1ST/2ND RAMP SELECTION ............................................................................................................................ 14
P0220 – LOCAL/REMOTE SELECTION SOURCE ......................................................................................................... 14
P0221 – SPEED REFERENCE SELECTION – LOCAL SITUATION ...................................................................................... 14
P0222 – SPEED REFERENCE SELECTION – REMOTE SITUATION ................................................................................... 14
P0223 – FORWARD/REVERSE SELECTION - LOCAL SITUATION .............................................................................. 14
P0224 – RUN/STOP SELECTION – LOCAL SITUATION ................................................................................................. 14
P0225 – JOG SELECTION – LOCAL SITUATION .......................................................................................................... 14
P0226 – FORWARD/REVERSE SELECTION - REMOTE SITUATION ........................................................................... 14
P0227 – RUN/STOP SELECTION - REMOTE SITUATION .............................................................................................. 14
P0228 – JOG SELECTION - REMOTE SITUATION ....................................................................................................... 14
P0313 – COMMUNICATION ERROR ACTION................................................................................................................. 14
P0680 – LOGICAL STATUS ............................................................................................................................................ 15
P0681 – MOTOR SPEED IN 13 BITS .............................................................................................................................. 16
P0684 – CANOPEN/DEVICENET CONTROL WORD ..................................................................................................... 17
P0685 – CANOPEN/DEVICENET SPEED REFERENCE ..................................................................................................... 17
P0695 – DIGITAL OUTPUT SETTING .............................................................................................................................. 18
P0696 – ANALOG OUTPUT VALUE 1 ............................................................................................................................ 19
P0697 – ANALOG OUTPUT VALUE 2 ............................................................................................................................ 19
P0698 – ANALOG OUTPUT VALUE 3 ............................................................................................................................ 19
P0699 – ANALOG OUTPUT VALUE 4 ............................................................................................................................ 19
P0700 – CAN PROTOCOL ........................................................................................................................................... 19
P0701 – CAN ADDRESS............................................................................................................................................... 20
P0702 – CAN BAUD RATE ........................................................................................................................................... 20
3
P0703 – BUS OFF RESET .............................................................................................................................................. 21
P0705 – CAN CONTROLLER STATUS ........................................................................................................................... 21
P0706 – RECEIVED CAN TELEGRAM COUNTER ............................................................................................................ 21
P0707 – TRANSMITTED CAN TELEGRAM COUNTER ...................................................................................................... 22
P0708 – BUSS OFF ERROR COUNTER ........................................................................................................................... 22
P0709 – LOST CAN MESSAGE COUNTER .................................................................................................................... 22
P0710 – DEVICENET I/O INSTANCES ........................................................................................................................... 23
P0711 – DEVICENET READING WORD #3 ...............................................................ERRO! INDICADOR NÃO DEFINIDO.
P0712 – DEVICENET READING WORD #4 ................................................................................................................... 28
P0713 – DEVICENET READING WORD #5 ................................................................................................................... 28
P0714 – DEVICENET READING WORD #6 ................................................................................................................... 28
P0715 – DEVICENET WRITING WORD #3.................................................................................................................... 28
P0716 – DEVICENET WRITING WORD #4.................................................................................................................... 28
P0717 – DEVICENET WRITING WORD #5.................................................................................................................... 28
P0718 – DEVICENET WRITING WORD #6.................................................................................................................... 28
P0719 – DEVICENET NETWORK STATUS ....................................................................................................................... 28
P0720 – DEVICENET MASTER STATUS........................................................................................................................... 29
4
FAULTS AND ALARMS RELATED TO THE DEVICENET COMMUNICATION........................................ 31
A133/F233 – CAN INTERFACE WITHOUT POWER SUPPLY .......................................................................................... 31
A134/F234 – BUS OFF ............................................................................................................................................... 31
A136/F236 – IDLE MASTER ......................................................................................................................................... 31
A137/F237 – DEVICENET CONNECTION TIMEOUT ..................................................................................................... 32
4
About this Manual
This manual provides the necessary information for the operation of the CFW-11 frequency inverter using the
DeviceNet protocol. This manual must be used together with the CFW-11 user manual.
Abbreviations and Definitions
ASCII
CAN
CIP
PLC
HMI
ODVA
American Standard Code for Information Interchange
Controller Area Network
Common Industrial Protocol
Programmable Logic Controller
Human-Machine Interface
Open DeviceNet Vendor Association
Numerical Representation
Decimal numbers are represented by means of digits without suffix. Hexadecimal numbers are represented with the
letter ‘h’ after the number.
Documents
The DeviceNet protocol for the CFW-11 was developed based on the following specifications and documents:
Document
CAN Specification
Volume One
Common Industrial Protocol (CIP) Specification
Volume Three
DeviceNet Adaptation of CIP
Version Source
2.0
CiA
3.2
ODVA
1.4
ODVA
In order to obtain this documentation, consult ODVA, which is nowadays the organization that keeps, publishes and
updates the information related to the DeviceNet network.
5
1 Introduction to the DeviceNet Communication
In order to operate the CFW-11 frequency inverter in a DeviceNet network, it is necessary to know the manner this
communication is performed. Therefore, this section brings a general description of the DeviceNet protocol
operation, containing the functions used by the CFW-11. Refer to the DeviceNet documentation indicated above
for a detailed description of the protocol.
1.1 CAN
DeviceNet is a network based on CAN, i.e., it uses CAN telegrams for exchanging data in the network.
The CAN protocol is a serial communication protocol that describes the services of layer 2 of the ISO/OSI model
(data link layer) 1 . This layer defines the different types of telegrams (frames), the error detection method, the
validation and arbitration of messages.
1.1.1 Data Frame
CAN network data is transmitted by means of a data frame. This frame type is composed mainly by an 11 bit 2
identifier (arbitration field), and by a data field that may contain up to 8 data bytes.
Identifier
11 bits
byte 0
byte 1
byte 2
8 data bytes
byte 3 byte 4
byte 5
byte 6
byte 7
1.1.2 Remote Frame
Besides the data frame, there is also the remote frame (RTR frame). This type of frame does not have a data field,
but only the identifier. It works as a request, so that another network device transmits the desired data frame.
1.1.3 Access to the Network
Any device in a CAN network can make an attempt to transmit a frame to the network in a certain moment. If two
devices try to access the network simultaneously, the one that sends the message with the highest priority will be
able to transmit. The message priority is defined by the CAN frame identifier, the smaller the value of this identifier,
the higher the message priority. The telegram with the identifier 0 (zero) is the one with the highest priority.
1.1.4 Error Control
The CAN specification defines several error control mechanisms, which makes the network very reliable and with a
very low undetected transmission error rate. Every network device must be able to identify the occurrence of these
errors, and to inform the other elements that an error was detected.
A CAN network device has internal counters that are incremented every time a transmission or reception error is
detected, and are decremented when a telegram is successfully transmitted or received. If a considerable amount of
errors occurs, the device can be led to the following states:
; Warning: when the counter exceeds a defined limit, the device enters the warning state, meaning the
occurrence of a high error rate.
; Error Passive: when this value exceeds a higher limit, the device enters the error passive state, and it stops
acting in the network when detecting that another device sent a telegram with an error.
; Bus Off: finally, we have the buss off state, in which the device will not send or receive telegrams any more.
1
In the CAN protocol specification, the ISO11898 standard is referenced as the definition of the layer 1 of this model (physical layer).
The CAN 2.0 specification defines two data frame types, standard (11 bit) and extended (29 bit). For the CFW-11 DeviceNet protocol, only the
standard frames are accepted.
2
6
1.1.5 CAN and DeviceNet
Only the definition of how to detect errors, create and transmit a frame, are not enough to define a meaning for the
data transmitted via the network. It is necessary to have a specification that indicates how the identifier and the data
must be assembled and how the information must be exchanged. Thus, the network elements can interpret the
transmitted data correctly. In that sense, the DeviceNet specification defines exactly how to exchange data among
the devices and how every one must interpret these data.
There are several other protocols based on CAN, as CANopen, J1939, etc., which do also use CAN frames for the
communication. However, those protocols cannot be used together in the same network.
1.2 DeviceNet
The next sections present, in a succinct form, the DeviceNet protocol.
1.2.1 Introduction
Introduced in 1994, DeviceNet is an implementation of the Common Industrial Protocol (CIP) for industrial
communication networks. Developed originally by Allen-Bradley, it had its technology transferred to the ODVA that,
since then, keeps, publishes and promotes DeviceNet and other networks based on the CIP 3 protocol. Furthermore,
it uses the Controller Area Network (CAN) protocol for the data link and access to the medium, layers 2 and 1 of
the OSI/ISO model, respectively.
Used mainly for the connection of industrial controllers and I/O devices, the protocol follows the model producerconsumer, supports multiple communication modes and has priority between messages.
It is a system that can be configured to operate in master-slave architecture as well as in a distributed point-to-point
architecture. Besides, it defines two kinds of messages, I/O (process data) and explicit (configuration and parameter
setting). It also has mechanisms to detect duplicated addresses and for node isolation in case of critical faults.
A DeviceNet network can have up to 64 devices, addressed from 0 to 63. Any of them can be used. There is no
restriction, although the 63 should be avoided because it is usually used for commissioning.
1.2.2 Physical Layer
DeviceNet uses a network topology of the trunk/derivation type that allows the signal wiring as well as the power
wiring to be present in the same cable. This power is supplied by a power supply connected directly to the network,
which feeds the CAN transceivers of the nodes, and has the following characteristics:
; 24Vdc;
; DC output isolated from the AC input;
; Current capacity compatible with the installed equipment.
The used Baud rate depends on the size (cable length) of the network, as showed in the table below.
Table 0.1 - Network size x Baud rate
Baud Rate
125kbps
250kbps
500kbps
Network
Size
500m
250m
100m
Derivation
Maximum
Total
156m
6m
78m
39m
In order to avoid reflections in the line, it is recommended the installation of termination resistors at the line
extremes, because the absence of them may cause intermittent errors. This resistor must have the following
characteristics, according to the protocol specification:
3
CIP actually represents a family of networks. DeviceNet, EtherNet/IP and ControlNet use CIP in the application layer. The difference among
them is primordially in the data link and physical layers.
7
; 121Ω;
; 0,25W;
; 1% tolerance.
For DeviceNet, several types of connectors can be used, sealed ones as well as open ones. The definition of the
type to be used depends on the application and on the equipment operation environment. The CFW-11 uses a 5
wire plug-in connector, and its pinout is showed in the section 2. For a complete description of the connectors used
with DeviceNet, consult the protocol specification.
1.2.3 Data Link Layer
The DeviceNet data link layer is defined by the CAN specification, which defines two possible states; dominant
(logic level 0) and recessive (logic level 1). A node can bring the network to the dominant state if it transmits any
information. Thus, the bus will only be in the recessive state if there where no transmitting nodes in the dominant
state.
CAN uses the CSMA/NBA to access the physical medium. This means that a node, before transmitting, must verify if
the bus is free. In case it is, then the node can initiate the transmission of its telegram. In case it is not, then the
node must await. If more than one node access the network simultaneously, a priority mechanism takes action to
decide which one will have priority over the others. This mechanism is not destructive, i.e., the message is preserved
even if there is a collision between two or more telegrams.
CAN defines four types of telegrams (data, remote, overload and error). Among them, DeviceNet uses only the
data frame and the error frame.
Data is moved using the data frame. This frame structure is showed in the figure 1.1.
Errors, however, are indicated by means of the error frames. CAN has a very robust error verification and
confinement. This assures that a node with problems does not impair the communication in the network.
1 bit
ACK Delimiter
7 bits
≥ 3 bits
Interframe Space
1 bit
End of Frame
1 bit
ACK Slot
15 bits
CRC Sequence
0-8 bytes
Data Field
6 bits
Control Field
1 bit
RTR bit
11 bits
Identifier
1 bit
Start of Frame
Interframe
Space
CRC Delimiter
For a complete description of the errors, consult the CAN specification.
Figure 0.1 - CAN data frame
1.2.4 Network and Transport Layer
DeviceNet requires that a connection be established before data exchange with the device takes place. In order to
establish this connection each DeviceNet node must implement the Unconnected Message Manager (UCMM) or
the Group 2 Unconnected Port. These two allocation mechanisms use messages of the explicit type to establish a
connection, which will then be used for process data exchange between one node and the other. This data
exchange uses messages of the I/O type (refer to item 1.2.7).
The DeviceNet telegrams are classified in groups, which define specific functions and priorities. Those telegrams use
the identifier field (11 bits) of the CAN data frame to uniquely identify each one of the messages, thus assuring the
CAN priority mechanism.
A DeviceNet node can be a client, a server or both. Furthermore, clients and servers can be producers and/or
consumers of messages. In a typical client node, for instance, its connection will produce requests and will consume
answers. Other client or server connections will only consume messages. In other words, the protocol allows several
connection possibilities among the devices.
The protocol also has a resource for detection of nodes with duplicated addresses (Mac ID). Avoiding that
duplicated addresses occur is, in general, more efficient than trying to locate them later.
8
1.2.5 Application Layer – CIP Protocol
In the application layer, DeviceNet uses the Common Industrial Protocol (CIP). It is a protocol strictly orientated to
objects, used also by ControlNet and EtherNet/IP. In other words, it is independent from the physical medium and
from the data link layer. The Figure 1.2 presents the structure of this protocol.
The CIP has two main purposes:
; Transport of I/O devices control data.
; Transport of configuration and diagnosis information of the system being controlled.
A DeviceNet node (master or slave) is then molded by a set of CIP objects, which encapsulate data and services,
thus determining its behavior.
There are obligatory objects (each device must have) and optional objects. Optional objects are those that mold the
device according to the category (called profile) to which they belong, as: AC/DC drive, bar code reader or
pneumatic valve. For being different, each one of these will contain a group of also different objects.
For more information refer to the DeviceNet specification. It presents the complete list of devices already
standardized by the ODVA, as well as the objects that compose them.
1.2.6 Configuration File
Every DeviceNet node has a configuration file associated 4 . This file contains important information about the
device operation and must be registered in the network configuration software.
Figure 0.2 - CIP protocol structure in layers
4
Known as EDS file.
9
1.2.7 Communication Modes
The DeviceNet protocol presents two basic types of messages, I/O and explicit. Each one of them is adequate to a
specific kind of data, as described below:
; I/O: It is a kind of synchronous telegram dedicated to the movement of priority data between one producer
and one or more consumers. They are divided according to the data exchange method. The main types are:
-
Polled: It is a communication method where the master sends one telegram to each of the slaves of its
list (scan list). As soon as receiving the request, the slave responds promptly to the request from the
master. This process is repeated until all be consulted, restarting the cycle.
-
Bit-strobe: It is a communication method where the master sends to the network a telegram containing
8 data bytes. Each bit from those 8 bytes represents a slave that, if addressed, responds according to
the programmed.
-
Change of State: It is a communication method where the data exchange between master and slave
occurs only when changes in the monitored/controlled values happened, until a certain time limit.
When this limit is reached, the transmission and reception will occur even if there were no changes.
The configuration of this time variable is done in the network configuration program.
-
Cyclic: It is another communication method very similar to the previous one. The only difference stays
in the production and consume of messages. In this type, every data exchange occurs in regular time
intervals, whether or not they had been changed. This time period is also adjusted in the network
configuration software.
; Explicit: It is a kind of general purpose telegram and without priority. It is mainly used for asynchronous tasks
like the parameter settings and the configuration of the equipment.
1.2.8 Set of Predefined Master/Slave Connections
DeviceNet uses fundamentally a point-to-point message model. However, it is quite common to use a predefined
communication model based on the master/slave mechanism.
This model uses a simplified message movement of the I/O type, very common in control applications. An
advantage of this method is that the necessary requests to run it are generally less than for the UCMM. Even simple
devices with limited resources (memory, 8 bit processor) are capable of executing the protocol.
10
2 Accessory Kits
In order to make the DeviceNet communication possible with the CFW-11, it is necessary to use one of the CAN
communication kits described next. Information on the installation of these modules in the inverter can be obtained
in the guide that comes with the kits.
2.1 CAN Interfaces
2.1.1 CAN-01 Kit
; WEG part number: 10051961.
; Composed by the CAN communication module (drawing at the
left), mounting instruction and fixing screw.
; The interface is electrically isolated and with differential signal,
which grants more robustness against electromagnetic
interference.
; External 24V supply via the DeviceNet network cable.
2.1.2 CAN/RS485-01 Kit
; WEG part number: 10051960.
; Composed by the CAN/RS485-01 communication module
(drawing at the left), mounting instruction and fixing screw.
; It has the same characteristics as the CAN-01 interface, plus an
RS485 interface, for applications where the operation with both
interfaces is necessary.
2.1.3 Connector Pinout
The CAN communication module presents a 5-wire plug-in connector (XC5) with the following pinout:
Table 2.1 – CAN interface XC5 connector pinout
Pin
1
2
3
4
5
Name
VCAN_L
Shield
CAN_H
V+
Function
Power supply negative pole
CAN_L communication signal
Cable shield
CAN_H communication signal
Power supply positive pole
11
2.1.4 Power Supply
The CFW-11 CAN interface needs an external power supply between the pins 1 and 5 of the network connector. In
order to avoid problems of potential difference among the network devices, it is recommended that the network be
supplied at only one point, and that the power supply be taken to all the devices trough the cable. If more than one
power supply is necessary, they must be referenced to the same point. The individual consumption and input
voltage data are presented in the next table.
Table 2.2 - CAN interface supply characteristics
Supply Voltage (VDC)
Maximum
Recommended
30
24
Current (mA)
Minimum
Maximum
Average
20
50
30
Minimum
11
2.2 Connection with the Network
For the connection of the inverter using the active DeviceNet interface the following points must be observed:
; The use of cables specific for CAN/DeviceNet networks is recommended.
; Grounding of the cable shield at only one point, thus avoiding current loops. This point is usually at the power
supply. If there is more than one power supply, only one of them must be connected to the protective earth.
; The termination resistors must be installed only at extremes of the main bus, even if there are derivations.
; The network power supply must be able to deliver enough current to feed all the equipment transceivers. The
CFW-11 DeviceNet module consumes approximately 50mA.
2.3 Module Configuration
In order to configure the DeviceNet module follow the steps indicated below:
;
;
;
;
;
;
;
;
;
;
;
12
With the inverter powered off install the module on the XC43 connector (slot 3 – green).
Make sure it is properly fitted into the connector and secured by the screw.
Power up the inverter.
Verify the content of the parameter P0028 making sure the accessory was correctly recognized. If necessary,
refer to the installation guide.
Set the CAN protocol for DeviceNet by means of the parameter P0700.
Adjust the address of the inverter in the network through the parameter P0701.
- Valid values: 0 to 63.
Set the Baud Rate in P0702. Valid values:
- 0 = Auto
- 1 = Auto
- 2 = 500kbps
- 3 = 250kbps
- 4 = 125kbps
- 5 = Auto
- 6 = Auto
- 7 = Auto
- 8 = Auto
At the parameter P0710, configure the most suitable I/O instance for the application (this choice will impact
the number of words exchanged with the network master). The very same number of words must be adjusted at
the network master. Finally, program a value different from -1 in the parameters P0711 to P0718 (refer to the
section 3).
- Valid values: 0 to 7.
Cycle the power of the CFW-11, so that the changes become effective.
Connect the network cable to the module.
Register the configuration file (EDS file) in the network configuration software.
Add the CFW-11 to the scan list of the master.
; In the network configuration software, choose a method of data exchange with the master, i.e., polled, change
of state, cyclic or bit-strobe. The CFW-11 DeviceNet module supports all these I/O data types, besides the
explicit (acyclic data).
; If everything is configured correctly the parameter P0719 will indicate the “Online Not Connected” or “Online
Connected” state. Observe also the parameter that indicates the network master status, P0720. There will only
be effective data exchange when the master status is Run.
Refer to the section 3 for more information on the parameters mentioned above.
2.4 Access to the Parameters
After the EDS file registration in the network configuration software, the user will get access to the equipment
complete parameter list, which can be accessed via explicit messages.
This means that it is possible to perform the drive programming and configuration through the network
configuration software.
In order to get application details of this resource, refer to the network master programming documentation (PLC,
PC, etc.).
13
3 Inverter Programming
Next, only the CFW-11 frequency inverter parameters related to the DeviceNet communication will be presented.
3.1 Symbols for Propriety Description
RO
CFG
Net
Serial
CAN
Read-only parameter.
Parameter that can be changed only with a stopped motor.
Parameter visible on the HMI if the inverter has the network interface installed –
RS232, RS485, CAN, Anybus-CC, Profibus – or if the USB interface is connected.
Parameter visible on the HMI if the inverter has the RS232 or RS485 interface
installed.
Parameter visible on the HMI if the inverter has the CAN interface installed.
P0105 – 1st/2nd Ramp Selection
P0220
P0221
P0222
P0223
–
–
–
–
LOCAL/REMOTE Selection Source
Speed Reference Selection – LOCAL Situation
Speed Reference Selection – REMOTE Situation
FORWARD/REVERSE Selection - LOCAL Situation
P0224
P0225
P0226
P0227
P0228
–
–
–
–
–
Run/Stop Selection – LOCAL Situation
JOG Selection – LOCAL Situation
FORWARD/REVERSE Selection - REMOTE Situation
Run/Stop Selection - REMOTE Situation
JOG Selection - REMOTE Situation
These parameters are used in the configuration of the command source for the CFW-11 inverter local and remote
situations. In order that the inverter be controlled through the DeviceNet interface, the options “CANopen/DNet”
available in these parameters, must be selected.
The detailed description of these parameters is found in the CFW-11 Programming Manual.
P0313 – Communication Error Action
Adjustable
Range:
Factory
0 = Inactive
Setting:
1 = Disable via Run/Stop
2 = Disable via General Enable
3 = Change to LOCAL
4 = Change to LOCAL keeping the commands and the reference
5 = Fault trip
0
Proprieties: CFG, Net
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 111 Status/Commands .
Description:
This parameter allows selecting which action must be executed by the inverter, in case that a communication error is
detected.
Table 3.1 - Values for the parameter P0313
14
Options
0 = Inactive
1 = Disable via
Run/Stop
2 = Disable via
General Enable
3 = Change to
LOCAL
4 = Change to
LOCAL keeping
the commands
and the reference
5 = Fault Trip
Description
No action is taken and the inverter remains in
the existing status
A stop command with deceleration ramp is
executed and the motor stops according to the
programmed deceleration ramp
The inverter is disabled by removing the
General Enabling and the motor coasts to stop
The inverter commands change to LOCAL
The inverter is changed to the local mode;
However, the enabling and reference
commands received via the network , in case
the inverter had been programmed for
start/stop via HMI or 3-wire and reference via
HMI or electronic potentiometer, are kept in the
local mode.
Instead of an alarm, a communication error
causes a fault at the inverter, so that it becomes
necessary to perform the inverter fault reset in
order to get it back to normal operation.
For the CAN interface used with the DeviceNet protocol, the following events are considered communication errors:
;
;
;
;
A133 Alarm/F233 fault: CAN interface without power supply.
A134 Alarm/F233 fault: bus off.
A136 Alarm/F233 fault: Idle master.
A137 Alarm/F233 fault: timeout in one or more I/O connections has occurred.
The description of these alarms/faults is presented in the section 4.
The actions described in this parameter are performed by means of the automatic writing of the respective bits on
the Control Word via CAN parameter – P0684. In order that the commands written in this parameter be executed,
it is necessary that the inverter be programmed to be commanded via DeviceNet. This programming is done by
means of parameters P0220 to P0228.
P0680 – Logical Status
0000h – FFFFh
Adjustable
Range:
Factory
Setting:
-
Proprieties: RO
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 111 Status/Commands
.
7
6
In Alarm condition
In configuration
mode
5
4
3 to 0
Reserved
8
Quick Stop
Activated
9
Second Ramp
10
Ramp enabled
LOC/REM
11
General Enabling
active
12
Speed Direction
13
JOG
14
Undervoltage
Function
15
Manual/ Automatic
Bits
Fault condition
Description:
It allows the monitoring of the inverter status. Each bit corresponds to one state:
Table 3.2 - Parameter P0680 bit functions
Bits
Bits 0 to 3
Bit 4
Quick Stop Activated
Values
Reserved
0: Quick stop command is not activated.
1: Inverter is executing quick stop command.
15
Bit 5
Second Ramp
Bit 6
In Configuration Mode
Bit 7
Alarm condition
Bit 8
Run/Stop
Bit 9
General Enabling active
Bit 10
Speed Direction
Bit 11
JOG
Bit 12
LOC/REM
Bit 13
Undervoltage
Bit 14
Manual/ Automatic
Bit 15
Fault condition
0: The inverter is configured to use as acceleration and deceleration ramp for the motor,
the first ramp, programmed at the parameters P0100 and P0101.
1: The inverter is configured to use as acceleration and deceleration ramp for the motor,
the second ramp, programmed at the parameters P0102 and P0103.
0: Inverter operating normally.
1: Inverter in configuration mode. Indicates a special condition when the inverter cannot
be enabled:
; Executing the self tuning routine;
; Executing the guided start-up routine;
; Executing the HMI copy function;
; Executing the flash memory card guided routine;
; There is a parameter setting incompatibility.
; Without power supply at the inverter power section.
Note: It is possible to obtain the exact description of the special operation mode at
parameter P0692.
0: The inverter is not in alarm condition.
1: The inverter is in alarm condition.
Note The alarm number can be read by means of the parameter P0048 – Current
Alarm.
0: The motor is stopped.
1: The inverter is driving the motor at the set point speed, or executing either the
acceleration or the deceleration ramp.
0: General Enabling is not active.
1: General enabling is active and the inverter is ready to run the motor.
0: The motor is rotating in reverse mode.
1: The motor is rotating in direct mode.
0: JOG function inactive.
1: JOG function active.
0: Inverter in LOCAL situation.
1: Inverter in REMOTE situation.
0: No Undervoltage.
1: With Undervoltage.
0: PID in manual mode.
1: PID in Automatic mode.
0: The inverter is not in a fault condition.
1: Any fault has been recorded by the inverter.
Note: The fault number can be read by means of the parameter P0049 – Current Fault.
P0681 – Motor Speed in 13 bits
Adjustable
Range:
Factory
Setting:
-32768 – 32767
-
Proprieties: RO
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 111 Status/Commands
Description:
It allows monitoring the motor speed. This word uses 13 bit resolution with signal to represent the motor nominal
speed:
; P0681 = 0000h (0 decimal)
; P0681 = 2000h (8192 decimal)
→ motor speed = 0 rpm
→ motor speed = synchronous speed
Intermediate or higher speed values in rpm can be obtained by using this scale. E.g., for a 4 pole 1800 rpm
synchronous speed motor, if the value read is 2048 (0800h), then, to obtain the speed in rpm one must calculate:
8192 – 1800 rpm
2048 – value read in P0681
Speed in rpm = 1800 × 2048
8192
Speed in rpm = 450 rpm
Negative values in this parameter indicate motor rotating in counterclockwise.
16
P0684 – CANopen/DeviceNet Control Word
Adjustable
Range:
Proprieties:
0000h – FFFFh
Factory 0000h
Setting:
CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 111 Status/Commands
Description:
It is the inverter control word via CAN interface. This parameter can only be changed via the CAN interface
(CANopen or DeviceNet protocols). For the other sources (HMI, USB, Serial, etc.) it behaves like a read-only
parameter.
In order that the commands written in this parameter be executed, it is necessary that the inverter be programmed
to be commanded via CAN. This programming is done by means of parameters P0105 and P0220 to P0228.
4
3
2
1
0
JOG
Direction of
Rotation
General
Enabling
Run/Stop
5
LOC/REM
6
Second Ramp
Use
Function
7
Quick Stop
15 to 8
Fault reset
Bits
Reserved
Each bit of this word represents a command that can be executed by the inverter.
Table 3.3 - Parameter P0684 bit functions
Bits
Bit 0
Run/Stop
Bit 1
General Enabling
Bit 2
Direction of Rotation
Bit 3
JOG
Bit 4
LOC/REM
Bit 5
Second Ramp Use
Bit 6
Quick Stop
Bit 7
Fault reset
Bits 8 to 15
Values
0: It stops the motor with deceleration ramp.
1: The motor runs according to the acceleration ramp until reaching the speed
reference value.
0: It disables the inverter, interrupting the supply for the motor.
1: It enables the inverter allowing the motor operation.
0: To run the motor in a direction opposed to the speed reference.
1: To run the motor in the direction indicated by the speed reference.
0: It disables the JOG function.
1: It enables the JOG function.
0: The inverter goes to the LOCAL situation.
1: The inverter goes to the REMOTE situation.
0: The inverter uses as acceleration and deceleration ramp for the motor, the
first ramp times, programmed at the parameters P0100 and P0101.
1: The inverter uses as acceleration and deceleration ramp for the motor, the
second ramp times, programmed at the parameters P0102 and P0103.
0: Quick Stop command not activated.
1: Quick Stop command activated.
Obs.: when the control modes V/f or VVW are selected, the use of this function is
not recommended.
0: No function.
1: If in a fault condition, then it executes the inverter reset.
Reserved
P0685 – CANopen/DeviceNet Speed Reference
Adjustable
Range:
-32768 – 32767
Factory 0
Setting:
Proprieties: CAN
17
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 111 Status/Commands
Description:
It allows the programming of the speed reference for the inverter via CAN interface. This parameter can only be
changed via the CAN interface (CANopen or DeviceNet protocols). For the other sources (HMI, USB, Serial, etc.) it
behaves like a read-only parameter.
In order that the reference written in this parameter be used, it is necessary that the inverter be programmed for
using the speed reference via CAN. This programming is done by means of parameters P0221 and P0222.
This word uses a 13 bit resolution with signal to represent the motor synchronous speed:
; P0685 = 0000h (0 decimal)
; P0685 = 2000h (8192 decimal)
→ speed reference = 0 rpm
→ speed reference = synchronous speed
Intermediate or higher speed reference values can be programmed by using this scale. E.g., for a 4 pole 1800 rpm
synchronous speed motor, to obtain a speed reference of 900 rpm one must calculate:
1800 rpm
900 rpm
– 8192
– 13 bit reference
13 bit reference = 900 × 8192
1800
13 bit reference = 4096 (value corresponding to 900 rpm in a 13 bit scale).
This parameter also accepts negative values to revert the motor speed direction. The reference speed direction,
however, depends also on the control word bit 2 setting – P0684:
;
;
;
;
Bit 2 = 1 and P0685 > 0: reference for direct speed rotation
Bit 2 = 1 and P0685 < 0: reference for reverse speed rotation
Bit 2 = 0 and P0685 > 0: reference for reverse speed rotation
Bit 2 = 0 and P0685 < 0: reference for direct speed rotation
P0695 – Digital Output Setting
Adjustable
Range:
Factory 0000h
Setting:
0000h – FFFFh
Proprieties: Net
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 111 Status/Commands
Description:
It allows the control of the digital outputs by means of the network interfaces (Serial, USB, CAN, etc.). This
parameter cannot be changed via HMI.
4
3
2
1
0
Setting for
DO4
Setting for
DO3 (RL3)
Setting for
DO2 (RL2)
Setting for
DO1 (RL1)
Function
15 to 5
Setting for
DO5
Bits
Reserved
Each bit of this parameter corresponds to the desired value for a digital output. In order to have the correspondent
digital output controlled according to this content, it is necessary that its function be programmed for “P0695
Content” at parameters P0275 to P0280.
Table 3.4 - Parameter P0695 bit functions
18
Bits
Values
Bit 0
Setting for DO1 (RL1)
Bit 1
Setting for DO2 (RL2)
Bit 2
Setting for DO3 (RL3)
Bit 3
Setting for DO4
Bit 4
Setting for DO5
Bits 5 to 15
P0696
P0697
P0698
P0699
–
–
–
–
Analog
Analog
Analog
Analog
Adjustable
Range:
Output
Output
Output
Output
Value
Value
Value
Value
0: DO1 output open.
1: DO1 output closed.
0: DO2 output open.
1: DO2 output closed.
0: DO3 output open.
1: DO3 output closed.
0: DO4 output open.
1: DO4 output closed.
0: DO5 output open.
1: DO5 output closed.
Reserved
1
2
3
4
-32768 – 32767
Factory 0
Setting:
Proprieties: Net
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 111 Status/Commands
Description:
It allows the control of the analog outputs by means of network interfaces (Serial, USB, CAN, etc.) This parameter
cannot be changed via HMI.
The value written in these parameters is used as the analog output value, providing that the function for the desired
analog output be programmed for “Content P0696/ P0697/ P0698/ P0696”, in the parameters P0251, P0254,
P0257 or P0260.
The value must be written in a 15 bit scale (7FFFh = 32767) 5 to represent 100% of the output desired value, i.e.:
; P0696 = 0000h (0 decimal)
→ analog output value = 0 %
; P0696 = 7FFFh (32767 decimal)
→ analog output value = 100 %
The showed example was for P0696, but the same scale is also used for the parameters P0697/P0698/P069. For
instance, to control the analog output 1 via CAN interface the following programming must be done:
; Choose a parameter from P0696 to P0699 to be the value used by the analog output 1. For this example we
are going to select P0696.
; Program the option “Content P0696” as the function for the analog output 1 in P0254.
; Using the CAN interface, write in P0696 the desired value for the analog output 1, between 0 and 100%,
according to the parameter scale.
NOTE!
If the analog output is programmed for operating from -10V to +10V, negative values must be used
for these parameters to command the output with negative voltage values, i.e, -32768 to 32767
represent a variation from -10V to +10V at the output.
P0700 – CAN Protocol
Adjustable
Range:
1 = CANopen
2 = DeviceNet
Factory 2
Setting:
Proprieties: CFG, CAN
5
Refer to the CFW-11 manual for knowing the actual output resolution.
19
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It allows selecting the desired protocol for the CAN interface. In order to enable the DeviceNet protocol it is
necessary to set this parameter to the option “2 = DeviceNet”.
If this parameter is changed, it becomes valid only after cycling the power of the inverter.
P0701 – CAN Address
0 to 127
Adjustable
Range:
Factory 63
Setting:
Proprieties: CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It allows programming the address used for the inverter CAN communication. It is necessary that each device in the
network has an address different from the others. The valid addresses for this parameter depend on the protocol
programmed in P0700:
; P0700 = 1 (CANopen) → valid addresses: 1 to 127.
; P0700 = 2 (DeviceNet) → valid addresses: 0 to 63.
If this parameter is changed, it becomes valid only after cycling the power of the inverter.
P0702 – CAN Baud Rate
Adjustable
Range:
0 = 1 Mbps/Auto
1 = 800 Kbps/Auto
2 = 500 Kbps
3 = 250 Kbps
4 = 125 Kbps
5 = 100 Kbps/Auto
6 = 50 Kbps/Auto
7 = 20 Kbps/Auto
8 = 10 Kbps/Auto
Factory 0
Setting:
Proprieties: CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It allows programming the desired value for the CAN interface Baud rate, in bits per second. This rate must be the
same for all the devices connected to the network. When the option “Auto” (autobaud) is selected, the CFW-11 will
adjust itself automatically to the actual network baud rate. In order that this mechanism works it is necessary that at
least two or more devices be actively communicating in the network.
After a successful detection, the baud rate parameter (P0702) changes automatically to the detected rate. In order
to execute the autobaud function again, it is necessary to change the parameter P0702 to one of the “Auto”
options.
If this parameter is changed, it becomes valid only after cycling the power of the inverter.
20
P0703 – Bus Off Reset
Adjustable
Range:
Factory 1
Setting:
0 = Manual
1 = Automatic
Proprieties: CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 112 CANopen/DeviceNet
Description:
It allows programming the inverter behavior when detecting a bus off error in the CAN interface:
Table 3.5 - Values for the parameter P0703
Options
0 = Manual Reset
1= Automatic Reset
Description
If bus off occurs, the A134/F234 alarm will be indicated on the HMI,
the action programmed in parameter P0313 will be executed and the
communication will be disabled. In order that the inverter
communicates again through the CAN interface, it will be necessary to
cycle the power of the inverter.
If bus off occurs, the communication will be reinitiated automatically
and the error will be ignored. In this case the alarm will not be
indicated on the HMI and the inverter will not execute the action
programmed in P0313.
P0705 – CAN Controller Status
Adjustable
Range:
0 = Inactive
1 = Auto-baud
2 = Active CAN interface
3 = Warning
4 = Error Passive
5 = Bus Off
6 = No Bus Power
Factory Setting:
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It allows identifying if the CAN interface board is properly installed and if the communication presents errors.
Table 3.6 - Values for the parameter P0705
Options
0 = Inactive
1 = Auto-baud
2 = Active CAN
interface
3 = Warning
4 = Error Passive
5 = Bus Off
6 = No Bus Power
Description
Inactive CAN interface. It occurs when the inverter does not
have the CAN interface installed.
CAN controller is trying to detect baud rate of the network.
CAN interface is active and without errors.
The CAN controller has reached the warning state.
The CAN controller has reached the error passive state.
The CAN controller has reached the bus off state.
The CAN interface does not have power supply between
the pins 1 and 5 of the connector.
P0706 – Received CAN Telegram Counter
Adjustable
Range:
0 to 65535
Factory Setting:
21
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication .
∟ 112 CANopen/DeviceNet
Description:
This parameter works as a cyclic counter that is incremented every time a CAN telegram is received. It gives a
feedback to the operator if the device is able to communicate with the network. This counter is reset every time the
inverter is switched off, a reset is performed or when the maximum limit of the parameter is reached.
P0707 – Transmitted CAN Telegram Counter
Adjustable
Range:
0 to 65535
Factory Setting:
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
This parameter works as a cyclic counter that is incremented every time a CAN telegram is transmitted. It gives a
feedback to the operator if the device is able to communicate with the network. This counter is reset every time the
inverter is switched off, a reset is performed or when the maximum limit of the parameter is reached.
P0708 – Buss Off Error Counter
Adjustable
Range:
0 to 65535
Factory Setting:
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It is a cyclic counter that indicates the number of times the inverter entered the bus off state in the CAN network.
This counter is reset every time the inverter is switched off, a reset is performed or when the maximum limit of the
parameter is reached.
P0709 – Lost CAN Message Counter
0 to 65535
Adjustable
Range:
Proprieties: RO, CAN
Factory Setting:
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It is a cyclic counter that indicates the number of messages received by the CAN interface that could not be
processed by the inverter. In case that the number of lost messages is frequently incremented, it is recommended to
reduce the baud rate used in the CAN network. This counter is reset every time the inverter is switched off, a reset is
performed or when the maximum limit of the parameter is reached.
22
P0710 – DeviceNet I/O Instances
Adjustable
Range:
0 = ODVA Basic Speed (2 words)
1 = ODVA Extended Speed (2 words)
2 = Manuf.Spec.2W (2 words)
3 = Manuf.Spec.3W (3 words)
4 = Manuf.Spec. 4W (4 words)
5 = Manuf.Spec. 5W (5 words)
6 = Manuf.Spec. 6W (6 words)
Factory 0
Setting:
Proprieties: CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It allows selecting the Assembly class instance for the I/O type communication. These instances represent the user
interface with the CFW-11 inverter. Each one presents the control and monitoring data in one manner. It is up to
the user to choose which option is the best for the application.
The CFW-11 has seven setting options. Two of them follow the ODVA AC/DC Drive Profile. The other five represent
specific WEG words. The tables presented next describe each of these control and monitoring words.
If this parameter is changed, it becomes valid only after cycling the power of the inverter.
0 = Data format for the ODVA Basic Speed (2 words) instances:
Called Basic Speed, these instances represent the simplest operation interface of a device according to the AC/DC
Device Profile. The data mapping is showed below.
Monitoring (Input)
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
0
20
Bit
2
Bit
1
1
-
2
Actual Speed (low byte)
3
Actual Speed (high byte)
Bit
0
Faulted
Byte
Running1
Instance
Control (Output)
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
0
70
Bit
2
1
-
2
Speed Reference (low byte)
3
Speed Reference (high byte)
Bit
1
Bit
0
Run Fwd
Byte
Fault Reset
Instance
1 = Data format for the ODVA Extended Speed (2 words) instances:
Called Extended Speed, these instances present an equipment operation interface a little bit more refined, which
follows the AC/DC Device Profile. The data mapping is showed below.
Monitoring (Input)
23
Running2 (Rev)
Bit
2
1
Drive State
2
Actual Speed (low byte)
3
Actual Speed (high byte)
Bit
1
Bit
0
Faulted
Bit
3
Warning
Bit
4
Running1 (Fwd)
Bit
5
Ready
21
Bit
6
Control from
Network
0
Bit
7
Reference from
Network
Byte
At Reference
Instance
Bit
5
Bit
4
Bit
3
Bit
2
1
-
2
Speed Reference (low byte)
3
Speed Reference (high byte)
Bit
1
Bit
0
Forward Run
71
Bit
6
Reverse Run
0
Bit
7
Fault Reset
Byte
Network
Control
Instance
Network
Reference
Control (Output)
The table below presents the meaning of data for the instances 20/70 and 21/71.
Monitoring:
Bits (Byte 0)
Bit 0
Faulted
Bit 1
Warning
Bit 2
Running1 (Fwd)
Bit 3
Running2 (Rev)
Bit 4
Ready
Bit 5
Control from Network
Bit 6
Reference from Network
Bit 7
At Reference
Values
0: The inverter is not in a fault condition.
1: A fault has been recorded by the inverter.
Note: The fault number can be read by means of the parameter P0049 – Current Fault.
0: The inverter is not in alarm condition.
1: The inverter is in alarm condition.
Note The alarm number can be read by means of the parameter P0048 – Current Alarm.
0: The motor is not rotating clockwise
1: The motor is rotating clockwise
0: The motor is not rotating counterclockwise
1: The motor is rotating counterclockwise
0: The inverter is not ready to operate
1: The inverter is ready to operate (states Ready, Enabled or Stopping)
0: The drive is controlled locally
1: The drive is controlled remotely
0: The speed reference is not being sent via the DeviceNet network
1: It indicates that the speed reference is being sent via the DeviceNet network
0: The inverter has not yet reached the programmed speed
1: The inverter has reached the programmed speed
; Byte 1 indicates the drive status:
- 0 = Non-Existent
- 1 = Startup
- 2 = Not_Ready
- 3 = Ready
- 4 = Enabled
- 5 = Stopping
- 6 = Fault_Stop
- 7 = Faulted
; Bytes 2 (low) and 3 (high) represent the motor actual speed in rpm.
Control:
Bits (Byte 0)
Bit 0
Run Forward
24
Values
0: It stops the motor
1: It runs the motor clockwise
Bit 1
Run Reverse
Bit 2
6
Fault Reset
Bits 3 and 4
Bit 5
Network Control 7
Bit 6
Network Reference
Bit 7
0: It stops the motor
1: It runs the motor counterclockwise
0: no function
1: If in a fault condition, then it executes the inverter reset.
Reserved
0: It selects the local mode
1: It selects the remote mode
0: The speed reference is not being sent via the DeviceNet network
1: That the speed reference be sent via the network
Reserved
; Bytes 2 (low) and 3 (high) (high) represent the motor actual speed in rpm.
2 = Data format for the WEG Specific 2W (2 words) instances:
Called WEG Specific 2W, these instances present the simplest equipment operation interface according to the WEG
profile. The data mapping is showed below.
14
13
12
11
10
9
8
7
6
Function
Manual/
Automatic
Undervoltage
LOC/REM
JOG
Speed
Direction
General
Enable
Running
Alarm
Configuration
mode
5
4 to 0
Reserved
15
Second
Ramp
Bits
Faulted
Monitoring (Input)
6 After a reset the drive goes to the offline state.
7 In order that this action be executed the parameters P0220 – P0228 must be correctly programmed.
25
Bits (Byte 0 and 1)
Bits 0 to 4
Bit 5
Second Ramp
Bit 6
Configuration mode
Values
Reserved.
0: The inverter is configured to use as acceleration and deceleration ramp for the motor, the first ramp, programmed
at the parameters P0100 and P0101.
1: The inverter is configured to use as acceleration and deceleration ramp for the motor, the second ramp,
programmed at the parameters P0102 and P0103.
0: Inverter operating normally.
1: Inverter in configuration mode. Indicates a special condition when the inverter cannot be enabled:
; Executing the self tuning routine;
; Executing guided start-up routine;
; Executing the HMI copy function;
; Executing the flash memory card guided routine;
; There is a parameter setting incompatibility.
; Without power supply at the inverter power section.
Bit 7
Alarm
Bit 8
Running
Bit 9
General Enable
Bit 10
Speed Direction
Bit 11
JOG
Bit 12
LOC/REM
Bit 13
Undervoltage
Bit 14
Manual/ Automatic
Bit 15
Faulted
Note: It is possible to obtain the exact description of the special operation mode at parameter P0692.
0: The inverter is not in alarm condition.
1: The inverter is in alarm condition.
Note: The alarm number can be read by means of the parameter P0048 – Current Alarm.
0: The motor is stopped.
1: The inverter is driving the motor at the set point speed, or executing either the acceleration or the deceleration
ramp.
0: General Enabling is not active.
1: General enabling is active and the inverter is ready to run the motor.
0: The motor is rotating counterclockwise.
1: The motor is rotating clockwise.
0: JOG function inactive.
1: JOG function active.
0: Inverter in LOCAL situation.
1: Inverter in REMOTE situation.
0: No Undervoltage.
1: With Undervoltage.
0: PID in manual mode.
1: PID in Automatic mode.
0: The inverter is not in a fault condition.
1: A fault has been recorded by the inverter.
Note: The fault number can be read by means of the parameter P0049 – Current Fault.
Bits (Byte 0 and 1)
Bit 0
Start/Stop
Bit 1
General Enabling
Bit 2
Speed Direction
Bit 3
JOG
Bit 4
LOC/REM
Bit 5
Second Ramp Use
Bit 6
Bit 7
Fault reset
Bits 8 to 15
4
3
2
1
0
JOG
Speed
Direction
General
Enabling
Start/Stop
Values
0: It stops the motor with deceleration ramp.
1: The motor runs according to the acceleration ramp until reaching the speed reference value.
0: It disables the inverter, interrupting the supply for the motor.
1: It enables the inverter allowing the motor operation.
0: To run the motor in the direction indicated by the speed reference.
1: To run the motor in a direction opposed to the speed reference.
0: It disables the JOG function.
1: It enables the JOG function.
0: The inverter goes to the LOCAL situation.
1: The inverter goes to the REMOTE situation.
0: The inverter uses as acceleration and deceleration ramp for the motor, the first ramp times,
programmed at the parameters P0100 and P0101.
1: The inverter uses as acceleration and deceleration ramp for the motor, the second ramp times,
programmed at the parameters P0102 and P0103.
Reserved
0: No function.
1: If in a fault condition, then it executes the inverter reset.
Reserved
3 = Data format for the WEG Specific 3W (3 words) instances:
4 = Data format for the WEG Specific 4W (4 words) instances:
5 = Data format for the WEG Specific 5W (5 words) instances:
26
5
LOC/REM
6
Second
Ramp Use
7
Reserved
Function
15 to 8
Fault Reset
Bits
Reserved
Control (Output)
6 = Data format for the WEG Specific 6W (6 words) instances:
These instances have the same format as the WEG Specific 2W. Besides the command and monitoring words
showed above, they make it possible to program up to 4 parameters of the equipment for reading and/or writing
via network.
Monitoring (Input)
Instance
16 bit words
Function
1
Monitoring
2
Actual Speed (13 bit representation)
3
Contend of the parameter P0711
4
Contend of the parameter P0712
5
Contend of the parameter P0713
6
Contend of the parameter P0714
100
P0710 Options
2
3
4
5
6
Control (Output)
Instance
150
16 bit words
Function
1
Control
2
Speed Reference (13 bit representation)
3
Contend of the parameter P0715
4
Contend of the parameter P0716
5
Contend of the parameter P0717
6
Contend of the parameter P0718
P0710 Options
2
3
4
5
6
27
P0712 – DeviceNet Reading Word #4
P0713 – DeviceNet Reading Word #5
P0714 – DeviceNet Reading Word #6
Adjustable
Range:
Factory -1 (disabled)
Setting:
-1 to 1499
Proprieties: CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
These parameters allow the user to program the reading of any other equipment parameter via the network. That is,
they contain the number of another parameter.
For instance, P0711 = 5. In this case the content of P0005 (motor frequency) will be sent via network. In this
manner, in the network master memory position corresponding to the third reading word, the motor frequency will
be read.
P0715
P0716
P0717
P0718
–
–
–
–
DeviceNet
DeviceNet
DeviceNet
DeviceNet
Adjustable
Range:
Proprieties:
Writing
Writing
Writing
Writing
Word
Word
Word
Word
#3
#4
#5
#6
-1 to 1499
Factory -1 (disabled)
Setting:
CFG, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
These parameters allow the user to program the writing of any other equipment parameter via the network. That is,
they contain the number of another parameter.
For instance, P0715 = 100. In this case the content to be written in P0100 will be sent via network. In this manner,
the network master memory position corresponding to the third writing word must contain the value for P0100.
P0719 – DeviceNet Network Status
Adjustable
Range:
0 = Offline
1 = Online, Not Connected
2 = Online, Connected
3 = Timed-out Connection
4 = Connection Failure
5 = Auto-baud
Factory Setting:
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It indicates the status of the DeviceNet network. The next table presents a brief description of those states.
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Status
Offline
Online, Not Connected
Online, Connected
Timed-out Connection
Connection Failure
Autobaud
Description
Device without power supply or not online. Communication cannot be
established,
Device online, but not connected. The slave has successfully completed the
MacID verification procedure. This means that the configured baud rate is
correct (or it has been detected correctly in case of autobaud) and that there
are no other network nodes with the same address. However, there is no
communication with the master yet in this stage.
The device is operational and in normal conditions. The master has allocated
a set of I/O type connections with the slave. In this stage the effective
exchange of data by means of I/O type connections occurs.
One or more I/O type connections have expired.
It indicates that the slave was not able to enter the network due to addressing
problems or due to the occurrence of bus off. Make sure the configured
address is not used by other device, verify if the chosen baud rate is correct
and make sure there are no installation problems.
The equipment is executing the autobaud mechanism.
P0720 – DeviceNet Master Status
Adjustable
Range:
0 = Run
1 = Prog (Idle)
Factory Setting:
Proprieties: RO, CAN
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 112 CANopen/DeviceNet
Description:
It indicates the DeviceNet network master status. It may be in operation mode (Run) or in configuration mode
(Prog).
When in Run, reading and writing telegrams are normally processed and updated by the master. When in Prog,
only the reading telegrams from the slaves are updated by the master. Writing, in this case, remains disabled.
P0799 – I/O Update Delay
Range:
Proprieties:
0.0 to 999.0
Default: 0.0
RW
Access groups via HMI:
01 PARAMETER GROUPS.
∟ 49 Communication
.
∟ 111 Status/Commands.
Description:
It allows setting the delay time for the update of the data mapped in the writing words (data received by the
equipment) via Profibus DP, Devicenet, CANopen communication networks and Anybus interface. The delay time is
activated in the transition of the equipment status in the network from offline to online 8 , as in figure 3.1.
8 For this function, online represents the state where the exchange of cyclic I/O data occurs.
29
Figure 3.1 Delay in the update of I/O words
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4 Faults and Alarms Related to the DeviceNet Communication
A133/F233 – CAN Interface Without Power Supply
Description:
It indicates that the CAN interface does not have power supply between the pins 1 and 5 of the connector.
Actuation:
In order that it be possible to send and receive telegrams through the CAN interface, it is necessary to supply
external power to the interface circuit.
If the absence of power supply at the CAN interface is detected, the alarm A133 or the fault F233, depending on
the P0313 programming, will be signalized through the HMI. If the circuit power supply is reestablished, the CAN
communication will be reinitiated. In case of alarms, the alarm indication will also be removed from the HMI.
Possible Causes/Correction:
; Measure if there is voltage between the pins 1 and 5 of the CAN interface connector.
; Verify if the power supply cables have not been changed or inverted.
; Make sure there is no contact problem in the cable or in the CAN interface connector.
A134/F234 – Bus Off
Description:
The bus off error in the CAN interface has been detected.
Actuation:
If the number of reception or transmission errors detected by the CAN interface is too high, the CAN controller can
be taken to the bus off state, where it interrupts the communication and disables the CAN interface.
In this case the alarm A134 or the fault F234, depending on the P0313 programming, will be signalized through
the HMI. In order that the communication be reestablished, it will be necessary to cycle the power of the inverter, or
remove the power supply from the CAN interface and apply it again, so that the communication be reinitiated.
Possible Causes/Correction:
; Make sure there is no short-circuit in CAN circuit transmission cables.
; Verify if the cables have not been changed or inverted.
; Verify if all the network devices use the same baud rate.
; Make sure that termination resistors with the correct have been installed only at the extremes of the main bus.
; Verify if the installation of the CAN network was done in an adequate manner.
A136/F236 – Idle Master
Description:
It is the alarm that indicates that the DeviceNet network master is in the Idle mode.
Actuation:
It acts when the CFW-11 detects that the network master went to the Idle mode. In this mode, only the variables
read from the slave continue being updated in the memory of the master. None of the commands sent to the slave
is processed.
In this case the alarm A136 or the fault F236, depending on the P0313 programming, will be signalized through
the HMI. In case of alarms, If the master is set in the Run mode again (normal equipment operation status), the
alarm indication will be removed from the HMI.
Possible Causes/Correction:
; Adjust the switch that commands the master operation mode for execution (Run) or set the correspondent bit in
the configuring word of the master software. In case of doubts, referrer to used master documentation.
31
A137/F237 – DeviceNet Connection Timeout
Description:
It is the alarm that indicates that one or more DeviceNet I/O connections have expired.
Actuation:
It occurs when, for any reason, the master is not able to access information from the slave.
In this case the alarm A137 or the fault F237, depending on the P0313 programming, will be signalized through
the HMI. In case of alarms, if the connection with the master is reestablished, the alarm indication will be removed
from the HMI.
Possible Causes/Correction:
; Verify if the master is present in the network and if it is in the Run mode.
32