While every precaution has been taken in the preparation of this document, Schneider
Electric SA assumes no liability for any omissions or errors it may contain, nor for any
damages resulting from the application or use of the information herein.
The products and options d escribed i n this document may be changed or modi fied at
any time, either from a technical point of view or in the way they are operated. Thei r
description can in no way be considered contractual.
2
1. Before you begin
Read and understand these instructions before performing any procedure with thi s drive.
DANGER
HAZARDOUS VOLTAGE
• Read and understand the Installation Ma nual before inst alling or op erating the Al tivar 71 drive. Installati on, adjustme nt,
repair, and maintenance must be performed by qualified personnel.
• The user is responsible for compliance with all international and national electrical standards in force concerning
protective grounding of all equipment.
• Many parts of this variable speed drive, including the printed circuit board s, operate at the line voltage. DO NOT TOUCH.
Use only electrically insulated tools.
• DO NOT touch unshielded components or terminal strip screw connections with voltage prese nt.
• DO NOT short across terminals PA/+ and PC/- or across the DC bus capacitors.
• Install and close all covers before applying power or starting and stopping the drive.
• Before servicing the variable speed drive
- Disconnect all power.
- Place a “DO NOT TURN ON” label on the variable speed drive disconnect.
- Lock the disconnect in the open position.
• Disconnect all power including external control power that may be present before servicing the drive. WAIT 15
MINUTES to allow the DC bus capacitors to discharge. Then follow the DC bus voltage measurement procedure given
in the installation manual to verify that the DC volta ge is less than 45 VDC. The drive LEDs are not accura te indi cators
of the absence of DC bus voltage.
Electric shock will result in death or serious injury.
CAUTION
EQUIPMENT DAMAGE
Do not operate or install any drive that appears damaged.
Failure to follow these instructions can result in equipment damage.
3
2. Documentation structure
The following Altivar 71 technical documents are availa ble on the Telemecanique website (www.telemecanique.com) as we ll as on the CDROM supplied with the drive.
b Installation Manual
This manual describes:
• How to assemble the drive
• How to connect the drive
b Programming Manual
This manual describes:
• The functions
• The parameters
• How to use the drive display terminal (integrated display terminal and graphic display terminal)
b Communication Parameters Manual
This manual describes:
• The drive parameters with specific information (addresses, formats, etc.) for use via a bus or communication network
• The operating modes specific to communication (state chart)
• The interaction between communication and local control
b Modbus, CANopen, Ethernet, Profibus, INTERBUS, Uni-Telway, DeviceNet, Modbus Plus and
FIPIO manuals
These manuals describe:
• Connection to the bus or network
• Configuration of the communication-specific parameters via the integrated display terminal or the graphic display terminal
• Diagnostics
• Software setup
• The communication services specific to the protocol
b Altivar 58/58F Migration Manual
This manual describes the differences between the Altivar 71 and the Altivar 58/58F.
It explains how to replace an Altivar 58 or 58F, including how to replace drives communicating on a bus or network.
4
3. Introduction
3. 1. Presentation
The communication card (catalog number VW3 A8 303) is used to connect an Altivar 71 drive to a Uni-Telway or Modbus bus.
This manual only describes how to use the Modbus protocol. For Uni-Telway, please refer to the Uni-Telway protocol manual.
The data exchanges permit access to all Altivar 71 functions:
• Configuration
• Adjustment
• Control and command
• Monitoring
• Diagnostics
The card has a female 9-way SUB-D connector for connection to the Modbus bus.
The connection cables and accessories should be ordered separately.
The drive address should be configured using the switches on the card.
The graphic display terminal or the integrated display terminal offer numerous functions for communication diagnosti cs.
Note: The Modbus card supports the following services in addition to those provided by the drive’s integrated ports:
- 2-wire and 4-wire RS485
- Choice of line polarization
- RTU and ASCII modes
- More diagnostic subcodes
- More Modbus functions (04: Read Input Registers and 11: Get Comm Event Counter)
3. 2. Notation
Drive terminal displays
The graphic display terminal menus are shown in square brackets.
Example: [1.9 COMMUNICATION]
The integrated 7-segment display terminal menus are shown in round brackets.
Example: (COM-)
Parameter names displayed on the graphic display terminal are shown in square brackets.
Example: [Fallback speed]
Parameter codes displayed on the integrated 7-segment display terminal are shown in round brackets.
Example: (LFF)
Formats
Hexadecimal values are written as follows: 16#
Binary values are written as follows: 2#
Abbreviations
Hi: High order
Lo: Low order
5
4. Hardware setup
4. 1. Receipt
Check that the card catalog number marked on the label is the same as that on the delivery note corresponding to the purchase order.
Remove the option card from its packaging and check that it has not been damaged in transit.
4. 2. Hardware description
LEDs
Female 9-way SUB-D connector
Polarization switches
4. 3. Installing the card in the drive
See the Installation Manual.
Address switches
6
4. Hardware setup
4. 4. Switch coding
b Choosing polarization
Normal setting for a Modbus bus:
• No polarization at drive level
Special setting (see "Creating a Modbus bus using non-standard equipment" on page 44
Ω RS485 line polarization at drive level
• 4.7 k
b Coding the address
The address switches are used to encode the address (1 to 247) of the drive on the bus.
The switch settings can only be changed when the drive is turned off.
The correspondence between the value and the position of the switch is as follows:
• 0 = OFF = Switch in upper position
• 1 = ON = Switch in lower position
The address is binary-coded.
Examples:
Address 11 = 2#0000 1011
Address 34 = 2#0010 0010
):
7
4. Hardware setup
The table below indicates the positions of the 8 switches for all configurable addresses:
• Use Telemecanique-approved cables and wiring accessories to ensure good transmission quality (matched impedance, immunity,
shielding connection, etc.).
• Keep the Modbus cable away from the power cables (30 cm minimum).
• Be sure to cross the Modbus cable and the power cables at right angles.
• Whenever possible, connect the bus cable shiel ding to the protective ground, e.g., to th e ground of each device if this ground is connected
to the protective ground.
• Install a line terminator at both ends of the line.
• Ensure the correct line polarization.
• Connect the common polarity ("Common" signal) to the protective ground at one or more points on the bus.
For more information, please refer to the TSX DG KBL E guide: "Electromagnetic compatibility of industrial networks and fieldbuses".
5. 2. Modbus RS485 standard
The characteristics and accessories mentioned in this section ("5. Connecting to the bus") comply with the Modbus standard.
Other non-Modbus-standard RS485 wiring diagrams are possible. Please see the Appendix for further information.
The latest generation of Telemecanique equipment conforms to Modbus (2-wire RS485).
Main characteristics:
Maximum length of bus1000 m at 19,200 bps
Maximum number of stations32 stations, i.e., 31 slaves (without repeater)
9
5. Connecting to the bus
5. 3. Connection via RJ45 wiring system
1. Master (PLC, PC or communication module)
2. Cable depending on the type of master (see table)
100Supplied without connector6TSXCSA 100
200Supplied without connector6TSXCSA 200
500Supplied without connector6TSXCSA 500
4VW3 A58 306 R10
4VW3 A58 306 R30
10
5. Connecting to the bus
b Connection cables for the master
Type of masterMaster interfaceDescriptionCatalog number
Twido PLCAdaptor or mini-DIN
RS485 interface module
Adaptor or screw
terminal RS485
interface module
TSX Micro PLCMini-DIN RS485
connector port
PCMCIA card
(TSX SCP114)
TSX Premium PLCTSX SCY 11601 or
TSX SCY 21601
module
(25-way SUB-D socket)
PCMCIA card
(TSX SCP114)
Ethernet bridge
(174 CEV 300 20)
Profibus DP gateway
(LA9P307)
Fipio (LUFP1) or
Profibus DP (LUFP7) or
DeviceNet (LUFP9)
gateway
Serial port PCMale 9-way SUB-D
Screw terminal RS4853 m cable equipped with an RJ45 connector and stripped at
RJ45 RS4851 m cable equipped with 2 RJ45 connectorsVW3 P07 306 R10
RJ45 RS4850.3 m cable equipped with 2 RJ45 connectors or
RS232 serial port PC
3 m cable equipped with a mini-DIN connect or and an RJ45
connector
3 m cable equipped with an RJ45 connector and stripped at
the other end
3 m cable equipped with a mini-DIN connect or and an RJ45
connector
Stripped cableTSX SCP CM 4030
Cable equipped with a 25-way SUB-D connector and
stripped at the other end (for connection to the screw
terminals of the LU9GC3 splitter block)
Stripped cableTSX SCP CM 4030
the other end
1 m cable equipped with 2 RJ45 connectors or
3 m cable equipped with 2 RJ45 connectors
RS232/RS485 converter and 3 m cable equipped with an
RJ45 connector and stripped at the other end (for
connection to the screw terminals of the LU9GC3 splitter
block)
TWD XCA RJ030
VW3 A8 306 D30
TWD XCA RJ030
TSX SCY CM 6030
VW3 A8 306 D30
VW3 A8 306 R03 or
VW3 A8 306 R10 or
VW3 A8 306 R30
TSX SCA 72 and
VW3 A8 306 D30
11
5. Connecting to the bus
5. 4. Connection via junction boxes
1. Master (PLC, PC or communication module)
2. Modbus cable depending on the type of master (see table)
1
32
44
3. Modbus cable TSX CSAp00
4. Subscriber sockets TSX SCA 62
5. Modbus drop cable VW3A83062
A TV 71
6
6
b Connection accessories
DescriptionRef.Catalog
number
Subscriber socket
2 female 15-way SUB-D connectors, 2 screw terminals, and an RC line terminator,
to be connected using cable VW3 A8 306 or VW3 A8 306 D30
4TSX SCA 62
b Connection cables
DescriptionLength (m)ConnectorsRef.Catalog
number
Cables for Modbus bus31 9-way SUB-D connector and
1 male 15-way SUB-D connector
for TSX SCA 62
RS485 double shielded twisted pair
cables
100Supplied without connector3TSX CSA 100
200Supplied without connector3TSX CSA 200
500Supplied without connector3TSX CSA 500
6VW3 A8 306 2
12
5. Connecting to the bus
b Connection cables for the master
Type of masterMaster interfaceDescriptionCatal og number
Twido PLCAdaptor or screw terminal
RS485 interface module
TSX Micro PLCMini-DIN RS485
connector port
PCMCIA card (TSX SCP114)Cable equipped with a special connector and
TSX Premium PLCTSX SCY 11601 or
TSX SCY 21601 module
(25-way SUB-D socket)
PCMCIA card (TSX SCP114)Cable equipped with a special connector and
Ethernet bridge
(174 CEV 300 10)
Profibus DP gateway
(LA9P307)
Fipio (LUFP1) or
Profibus DP (LUFP7) or
DeviceNet (LUFP9) gateway
Serial port PCMale 9-way SUB-D RS232
Screw terminal RS485Modbus cableTSX CSA100 or
RJ45 RS4853 m cable equipped with an RJ45 connector
RJ45 RS4853 m cable equipped with an RJ45 connector
serial port PC
Modbus cableTSX CSA100 or
TSX CSA200 or
TSX CSA500
Tap junctionTSX P ACC 01
TSX SCP CM 4030
stripped at the other end
Cable equipped with a 25-way SUB-D
connector and stripped at the other end
stripped at the other end
and stripped at the other end
and stripped at the other end
RS232/RS485 converter and
Modbus cable
TSX SCY CM 6030
TSX SCP CM 4030
TSX CSA200 or
TSX CSA500
VW3 A8 306 D30
VW3 A8 306 D30
TSX SCA 72 and
TSX CSA100 or
TSX CSA200 or
TSX CSA500
13
6. Configuration
6. 1. Communication parameters
Configure the following parameters in the [1.9 - COMMUNICATION](COM-) menu, [Uni-Telway/Modbus](UtL-) submenu:
[Protocol](PrO), [Bit rate](bdr) and [Format](FOr).
These parameters can only be modified when the motor is stopped. Modifications can only be taken into account by the drive following a
power break.
Parameter Possible valuesTerminal displayDefault value
[Protocol]
(PrO)
[Address]
(AdrC)
[Bit rate]
(Bdr)
[Format]
(FOr)
Uni-Telway
Modbus/RTU
Modbus/ASCII
0 to 247[0](0) to [247](247)Value taken from the address switches
4800 bps
9600 bps
19,200 bps
In RTU mode only:
8 data bits, odd parity, 1 stop bit
8 data bits, even parity, 1 stop bit
8 data bits, no parity, 1 stop bit
8 data bits, no parity, 2 stop bits
In RTU and ASCII modes:
7 data bits, odd parity, 1 stop bit
7 data bits, even parity, 1 stop bit
7 data bits, odd parity, 2 stop bits
7 data bits, even parity, 2 stop bits
Numerous configurations are possible. For more information, refer to the Programming Manual and th e Parameters Manual.
The following configurations are just some of the possibili ties available.
b Control via Modbus in I/O profile
The command and reference come from Modbus.
The command is in I/O profile.
Configure the following parameters:
ParameterValueComment
ProfileI/O profileThe run command is simply obtained by bit 0 of the control word.
Reference 1 configurationNetwork card The reference comes from Modbus.
Command 1 configurationNetwork card The command comes from Modbus.
Configuration via the graphic display terminal or the integrated display terminal:
b Control via Modbus or the terminals in I/O profile
Both the command and reference come from Modbus or the terminals. Input LI5 at the terminals is used to switch between Modbus and the
terminals.
The command is in I/O profile.
Configure the following parameters:
ParameterValueComment
ProfileI/O profileThe run command is simply obtained by bit 0 of the control word.
Reference 1 configurationNetwork cardReference 1 comes from Modbus.
Reference 1B configurationAnalog input 1 on the termi nals Reference 1B comes from input AI1 on the terminals.
Reference switchingInput LI5Input LI5 switches the reference (1
Command 1 configurationNetwork cardCommand 1 comes from Modbus.
Command 2 configurationTerminalsCommand 2 comes from the terminals.
Command switchingInput LI5Input LI5 switches the command.
Note: Reference 1B is directly connected to the drive reference limit. If switching is performed, the functions that affect the reference
(summing, PID, etc) are inhibited.
Configuration via the graphic display terminal or the integrated display terminal: