Leroy-Somer PX-MODBUS User manual

Thismanualistobegivento
theenduser
4071 en - 03.2007 / a
M
slave n
Command (03)
No. of bytes
Word number 1
Word number 2
n word
CRC 16
1
hexadecimal byte
2
hexadecimal bytes
PX-MODBUS
Communication module for
POWERDRIVE, PROXIDRIVE, VARMECA 33/34
Installation

2
INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
NOTE
LEROY-SOMER reserves the right to modify the characteristics of its products at any time in
order to incorporate the latest technological developments. The information contained in this
document may therefore be changed without notice.
CAUTION
For the user's own safety, this variable speed drive must be connected to an approved earth
( terminal).
If accidentally starting the installation is likely to cause a risk to personnel or the machines
being driven, it is essential to supply the equipment via an isolating switch and a
circuit-breaking device (power contactor) which can be controlled via an external safety
system (emergency stop, detection of errors on the installation).
The variable speed drive is fitted with safety devices which, in the event of a fault, control
stopping and thus stop the motor. The motor itself can become jammed for mechanical
reasons. Voltage fluctuations, and in particular power cuts, may also cause the motor to stop.
The removal of the causes of the shutdown can lead to restarting, which may be dangerous
for certain machines or installations.
In such cases, it is essential that the user takes appropriate precautions against the motor
restarting after an unscheduled stop.
The variable speed drive is designed to be able to supply a motor and the driven machine
above its rated speed.
If the motor or the machine are not mechanically designed to withstand such speeds, the user
may be exposed to serious danger resulting from their mechanical deterioration.
Before programming a high speed, it is important that the user checks that the installation can
withstand it.
The variable speed drive which is the subject of this manual is designed to be integrated in an
installation or an electrical machine, and can under no circumstances be considered to be a
safety device. It is therefore the responsibility of the machine manufacturer, the designer of the
installation or the user to take all necessary precautions to ensure that the system complies
with current standards, and to provide any devices required to ensure the safety of equipment
and personnel.
Using the drive for hoisting: when using this application, it is essential to follow the special
instructions in an application-specific manual which is available on request. It is the
responsibility of the user to obtain this manual from his usual LEROY-SOMER contact.
LEROY-SOMER declines all responsibility in the event of the above recommendations not
being observed.
........................................

INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
3
SAFETY AND OPERATING INSTRUCTIONS FOR VARIABLE SPEED DRIVES
(in accordance with the low voltage directive 73/23/EEC modified by 93/68/EEC)
• Throughout the manual, this
symbol warns of consequences
which may arise from inappropriate use
of the drive, since electrical risks may
lead to material or physical damage as
well as constituting a fire hazard.
1 - General
Depending on their degree of protection,
the variable speed drives may contain
unprotected live parts, which may be
moving or rotating, as well as hot surfaces,
during operation.
Unjustified removal of protection devices,
incorrect use, faulty installation or
inappropriate operation could represent a
serious risk to personnel and equipment.
For further information, consult the manual.
All work relating to transportation,
installation, commissioning and
maintenance must be performed by
experienced, qualified personnel (see
IEC 364 or CENELEC HD 384, or DIN VDE
0100 and national specifications for
installation and accident prevention).
In these basic safety instructions, qualified
personnel means persons competent to
install, mount, commission and operate the
product and possessing the relevant
qualifications.
2 - Use
Variable speed drives are components
designed for integration in installations or
electrical machines.
When integrated in a machine,
commissioning must not take place until it
has been verified that the machine
conforms with directive 89/392/EEC
(Machinery Directive). It is also necessary
to comply with standard EN 60204, which
stipulates in particular that electrical
actuators (which include variable speed
drives) cannot be considered as
circuit-breaking devices and certainly not
as isolating switches.
Commissioning can take place only if the
requirements of the Electromagnetic
Compatibility Directive (89/336/EEC,
modified by 92/31/EEC) are met.
The variable speed drives meet the
requirements of the Low Voltage Directive
73/23/EEC, modified by 93/68/EEC. The
harmonised standards of the
DIN VDE 0160 series in connection with
standard VDE 0660, part 500 and EN
60146/VDE 0558 are also applicable.
The technical characteristics and
instructions concerning the connection
conditions specified on the nameplate and
in the documentation provided must be
observed without fail.
3 - Transportation, storage
All instructions concerning transportation,
storage and correct handling must be
observed.
The climatic conditions specified in the
technical manual must be observed.

4
INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
4 - Installation
The installation and cooling of equipment
must comply with the specifications in the
manual supplied with the product.
The variable speed drives must be
protected against any excessive stress. In
particular, there must be no damage to
parts and/or modification of the clearance
between components during transportation
and handling. Avoid touching the electronic
components and contact parts.
The variable speed drives contain parts
which are sensitive to electrostatic stresses
and may be easily damaged if handled
incorrectly. Electrical components must not
be exposed to mechanical damage or
destruction (risks to health!).
5 - Electrical connection
When work is performed on variable speed
drives which are powered up, the national
accident prevention regulations must be
observed.
The electrical installation must comply with
the relevant specifications (for example
conductor cross-sections, protection via
fused circuit-breaker, connection of
protective conductor). More detailed
information is given in the manual.
Instructions for an installation which meets
the requirements for electromagnetic
compatibility, such as screening, earthing,
presence of filters and correct insertion of
cables and conductors, are given in the
documentation supplied with the variable
speed drives. These instructions must be
followed in all cases, even if the variable
speed drive carries the CE mark.
Adherence to the limits given in the EMC
legislation is the responsibility of the
manufacturer of the installation or the
machine.
6 - Operation
Installations in which variable speed drives
are integrated must be fitted with additional
protection and monitoring devices as laid
down in the current relevant safety
regulations, such as the law on technical
equipment, accident prevention
regulations, etc. Modifications to the
variable speed drives using control
software are permitted.
Active parts of the device and the live
power connections must not be touched
immediately after the variable speed drive
is powered down, as the capacitors may
still be charged. In view of this, the
warnings fixed to the variable speed drives
must be observed.
During operation, all doors and protective
covers must be kept closed.
7 - Servicing and maintenance
Refer to the manufacturer's documentation.
This manual is to be given to the end
user.

INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
5
CONTENTS
1 - GENERAL INFORMATION................................................................................ 7
1.1 - General information ......................................................................................... 7
1.2 - Dimensions...................................................................................................... 7
2 - INSTALLATION ................................................................................................. 8
2.1 - Mounting position on POWERDRIVE drive ..................................................... 8
2.2 - Mounting position on PROXIDRIVE drive........................................................ 8
2.3 - Mounting position on VARMECA 33/34 drive .................................................. 8
3 - ELECTRICAL CONNECTIONS ......................................................................... 9
4 - SETTING THE COMMUNICATION PARAMETERS........................................ 10
5 - MODBUS RTU OPERATION ........................................................................... 12
5.1 - General information ....................................................................................... 12
5.2 - Description of exchanges............................................................................... 12
5.3 - Parameter assignment................................................................................... 13
5.4 - Data encoding................................................................................................ 13
5.5 - Control word and status word ........................................................................ 13
5.6 - Function codes............................................................................................... 14
5.7 - Example......................................................................................................... 17
5.8 - Wait time........................................................................................................ 17
5.9 - Exceptions ..................................................................................................... 17
5.10 - CRC ............................................................................................................. 18

6
INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
Notes

INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
7
1 - GENERAL INFORMATION
1.1 - General
PX-Modbus is a Modbus RTU option
designed for Powerdrive, Proxidrive and
Varmeca 33/34 drives.
As standard, these drives incorporate a
Modbus RTU serial link port, type RS485
2-wire, non-isolated, accessible via the
RJ45 connector. When the user wishes to
keep the keypad (KEYPAD-LCD)
permanently connected, or if he requires an
isolated link, the Modbus RTU option with
2 or 4-wire isolated RS485 serial link port
should be added.
Colour of the option label: blue.
1.2 - Dimensions
The PX-Modbus module can be
incorporated in POWERDRIVE,
PROXIDRIVE and VARMECA 33/34
drives, and does not alter the drive
dimensions.

8
INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
2 - INSTALLATION
• Always switch off the drive before connecting/disconnecting the option to/from
the drive. Check that the D.C. bus has fully discharged (this takes over a minute
on Powerdrives).
2.1 - Mounting position on POWERDRIVE drive
Offer the module to the special connector slot, push gently until you hear a "click" as it locks
in place.
2.2 - Mounting position on
PROXIDRIVE drive
Offer the module to the special connector
slot, push gently until you hear a "click" as
it locks in place.
2.3 - Mounting position on
VARMECA 33/34 drive
Offer the module to the special connector
slot, push gently until you hear a "click" as
it locks in place.
PX-Modbus
module
position
PX-Modbus
module
position
PX-Modbus
module
position

INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
9
3 - ELECTRICAL CONNECTIONS
WARNING:
Always switch off the drive before connecting/disconnecting the option to/from the drive.
Check that the D.C. bus has fully discharged (this takes over a minute on Powerdrives).
9-pin female SUB-D
Pin Description
1
2
3
4
5
6
7
8
9
Shielding: 0V "com"
0V "com"
TX\
RX\
not connected
not connected
TX
RX
not connected
not connected
5-pin screw terminal block
Pin Description
1
2
3
4
5
0V "com"
RX\
RX
TX\
TX
12345
51
96

10
INSTALLATION
PX-MODBUS
Communication module for POWERDRIVE, PROXIDRIVE, VARMECA 33/34
4071 en - 03.2007 / a
LEROY-SOMER
4 - SETTING THE COMMUNICATION
PARAMETERS
From version v2.20 of Powerdrive and
version v3.00 of Proxidrive and Varmeca
33/34, the PX-Modbus card parameters
are set from menu 15.
Note: Modbus configuration of the RJ45 is
still in menu 11. On subsequent versions,
Modbus configuration of the RJ45 is
completely independent from Modbus
configuration of the PX-Modbus module.
On older software versions, menu 11
configures both Modbus modules (no menu
15 in this case).
: Option code
Value 352 for Modbus.
: PX-Modbus address
Adjustment range :0 to 247
Factory setting :1
Used to define the drive address in the
case of control or monitoring via the serial
link in Modbus RTU. Avoid values including
a zero since these are used for addressing
groups of drives. This parameter is the
equivalent of 11.23 for the RJ45.
: Modbus speed
Adjustment range :300 (0) to 115200 (9)
Factory setting :19200 (6)
Used to select the data transfer speed in
Modbus RTU.
*: These speeds are non-operational on the
PROXIDRIVE and VARMECA 33/34.
This parameter is the equivalent of 11.25
for the RJ45.
: Parity, number of stop bits
Adjustment range :NONE, 2STOP (0);
NONE, 1STOP (1);
EVEN, 1STOP (2);
ODD, 1STOP (3)
Factory setting :NONE, 2STOP (0)
NONE, 2STOP (0): no parity,
2 stop bits.
NONE, 1STOP (1): no parity,
1 stop bit.
EVEN, 1STOP (2): even parity,
1 stop bit.
ODD, 1STOP (3): odd parity,
1 stop bit.
This parameter is the equivalent of 11.27
for the RJ45.
15.01
15.03
Speed (Bauds) 15.04
300 0
600 1
1200 2
2400 3
4800 4
9600 5
19200 6
38400* 7
57600* 8
115200* 9
15.04
15.05