BONFIGLIOLI active User manual

www.bonfiglioli.com
Bonfiglioli Riduttori S.p.A.
Via Giovanni XXIII, 7/A
40012 Lippo di Calderara di Reno
Bologna, Italy
tel: [phone]
fax: [phone]
bonfiglioli@bonfiglioli.com
www.bonfiglioli.com
VEC 228 R1
Bonfiglioli has been designing and developing innovative
and reliable power transmission and control solutions
for industry, mobile machinery and renewable energy
applications since 1956.
ACTIVE and
ACTIVE Cube
Profibus-DP
Communication module CM-PDP
Frequency Inverter 230V / 400V

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General points on the documentation
The present supplement of the documentation is valid for the frequency inverter of
the device series ACT and ACU. The information necessary for the assembly and
application of the Profibus-DP communication module CM-PDP is documented in
this guidance.
For better clarity, the user documentation is structured according to the customer-
specific demands made of the frequency inverter.
Brief instructions
The brief instructions describe the fundamental steps for mechanical and electrical
installation of the frequency inverter. The guided commissioningsupports you in the
selection of necessary parameters and the software configuration of the frequency
inverter.
Operating instructions
The operating instructions document the complete functionality of the frequency in-
verter. The parameters necessary for specific applications for adaptation to the appli-
cation and the extensive additional functions are described in detail.
Application manual
The application manual supplements the documentation for purposeful installation and
commissioning of the frequency inverter. Information on various subjects connected
with the use of the frequency inverter are described specific to the application.
Installation instructions
As a complement of the brief instructions and the operating instructions, the installa-
tion instructions describe the installation and use of devices.
The documentation and additional information can be requested via your local repre-
sentation of the firm of BONFIGLIOLI. The followingpictograms and signal words are
used for the purposes of the present documentation:
Danger!
means a directly threatening danger. Death, serious damage to persons and consider-
able damage to property will occur if the precautionary measure is not taken.
Warning!
marks a possible threat. Death, serious damage to persons and considerable damage
to property can be the consequence if attention is not paid to the text.
Caution!
refers to an indirect threat. Damage to people or property can be the result.
Attention!
refers to a possible operational behavior or an undesired condition that can occur in
accordance with the reference text.
Note
marks information that facilitates handling for you and supplements the corresponding
part of the documentation.
Warning! In installation and commissioning, comply with the information in the
documentation. You as a qualified person must read the documentation
carefully before the start of the activity and obey the safety instructions.
For the purposes of the instructions, "qualified person" designates a per-
son acquainted with the erection, assembly, commissioning and operation
of the frequency inverters and possessing the qualification corresponding
to the activity.

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Table of Content
1General safety and application information .................................................................. 4
1.1 General information................................................................................................. 4
1.2 Proper use................................................................................................................ 4
1.3 Transport and storage ............................................................................................. 5
1.4 Handling and positioning......................................................................................... 5
1.5 Electrical connection................................................................................................ 5
1.6 Operation information ............................................................................................. 5
1.7 Maintenance and service ......................................................................................... 5
2Introduction ................................................................................................................... 6
3Assembly of the Profibus-DP communication module CM-PDP ....................................... 7
4 Socket occupancy/bus termination/line ....................................................................... 8
5Baud rate setting/line length......................................................................................... 9
6 Setting station address .................................................................................................. 9
7Setting PPO type ............................................................................................................ 9
7.1 Configuration process on the DP master............................................................... 10
8 Commands SYNC / FREEZE.......................................................................................... 11
9Available objects / scanning times .............................................................................. 11
10 Handling of the objects................................................................................................ 13
10.1 Communication channel ..................................................................................... 13
10.1.1 Order identification ................................................................................................ 14
10.1.2 Reply identification ................................................................................................ 14
10.1.3 Fault messages...................................................................................................... 14
10.1.4 Parameters, data set selection and cyclic writing ...................................................... 15
10.1.5 Sequence of communication ................................................................................... 16
10.1.6 Examples of communication ................................................................................... 17
10.2 Process data channel PZD1/PZD2...................................................................... 19
10.2.1 PZD1, control word / state word ............................................................................. 19
10.2.2 Control via contacts ............................................................................................... 20
10.2.3 Control via state machine ....................................................................................... 21
10.2.3.1 Behavior in quick stop ..................................................................................... 24
10.2.3.2 Behavior in transition 5.................................................................................... 24
10.2.4 Control via remote contacts .................................................................................... 25
10.2.5 PZD2, reference value / actual value ....................................................................... 27
10.2.6 Variable actual value reporting via PZD2 in PPO1 / PPO3........................................... 28
10.2.7 Actual value report PZD2 to PZD6 in PPO2 / PPO4 .................................................... 30
10.2.8 PPO-Out data as global sources .............................................................................. 30
10.3 Actual value display of Profibus data ................................................................. 35

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Table of Content
11 Parameter list............................................................................................................... 37
11.1 Actual value ........................................................................................................ 37
11.2 Parameter........................................................................................................... 37
12 Annex ...........................................................................................................................38
12.1 Warning messages ............................................................................................. 38
12.2 Fault messages ................................................................................................... 38
12.3 GSD File – VEC_0696.GSD .................................................................................. 39

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1General safety and application information
This documentation has been produced with the greatest of care and extensively and
repeatedly checked. For reasons of clarity, not all the detailed information on all types
of the product and also not every imaginable case of erection, operation or mainte-
nance have been taken into account. If you require further information or if specific
problems which are not dealt with extensively enou
g
h in the documentation exist, you
can request the necessary information via the local representation of the company of
BONFIGLIOLI.
We would also point out that the contents of this documentation are not part of a
previous or existin
g
a
g
reement, assurance or le
g
al relationship and are not intended
to amend the same. All obligations of the manufacturer result from the underlying
purchase contract, which also contains the complete and solely valid warranty regula-
tion. These contractual warranty provisions are neither extended nor limited by the
production of this documentation.
The manufacturer reserves the right to correct or amend the contents and the product
information as well as omissions without prior notification and assumes no kind o
f
liability for damage, injuries or expenditure to be put down to the aforementioned
reasons.
1.1 General information
Warning! BONFIGLIOLI VECTRON frequency inverters have high voltage levels dur-
ing operatin
g
, dependin
g
on their protection class, drive movin
g
parts and
have hot surfaces.
In the event of inadmissible removal of the necessary covers, improper
use, wronginstallation or operation, there is the risk of serious damage to
persons or property.
To avoid the damage, only qualified staff may carry out the transport,
installation, setup or maintenance work required. Comply with the s EN
50178, IEC 60364 (Cenelec HD 384 or DIN VDE 0100), IEC 60664-1
(Cenelec HD 625 or VDE 0110-1), BGV A2 (VBG 4) and national provi-
sions. Qualified persons within the meaning of this principal safety infor-
mation are people acquainted with the erection, fittin
g
, commissionin
g
and operating of frequency inverters and the possible hazards and in pos-
session of qualifications matching their activities.
1.2 Proper use
Warning! The frequency inverters are electrical drive components intended for in-
stallation in industrial plant or machines. Commissioning and start of in-
tended operation are not allowed until it has been established that the
machine corresponds to the provisions of the EC machine directive
98/37/EEC and EN 60204. According to the CE sign, the frequency invert-
ers additionally fulfill the requirements of the low-voltage directive
73/23/EEC and the s EN 50178 / DIN VDE 0160 and EN 61800-2. Respon-
sibility for compliance with the EMC directive 89/336/EEC is with the user.
Frequency inverters are available in a limited way and as components
exclusively intended for professional use within the meaningof the EN
61000-3-2.
With the issue of the UL accordingto UL508c, the requirements of the
CSA Standard C22.2-No. 14-95 have also been fulfilled.
The technical data and the information on connection and ambient condi-
tions the rating plate and the documentation be complied with. The in-
structions must have been read and understood before startingwork at
the device.

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1.3 Transport and storage
Transport and storage are to be done in an adequate way in the original packaging.
Storage shall be in dry rooms protected against dust and moisture with slight tem-
perature fluctuations. Please observe the climatic conditions accordingto EN 50178
and the marking on the packaging.
The duration of storage without connection to the admissible reference voltage may
not exceed one year.
1.4 Handling and positioning
Warning! Damaged or destroyed components may not be put into operation be-
cause they may be a health hazard.
The frequency inverters are to be used according to the documentation, the directives
and the standards. Handle carefully and avoid mechanical overload. Do not bend the
components or change the isolation distances. Do not touch electronic components or
contacts. The devices contain construction elements with a risk of electrostatic, which
can easily be damaged by improper handling. Any use of damaged or destroyed com-
ponents shall be considered as a non-compliance with the applicable standards. Do
not remove any warning signs from the device.
1.5 Electrical connection
Warning! Before any assembly or connection work, de-energize the frequency in-
verter. Make sure that the frequency inverter is de-energized.
Do not touch the sockets, because the capacitors may still be charged.
Comply with the information given in the operatinginstructions and on
the frequency inverter label.
While workin
g
on the frequency inverters, obey the applicable standards BGV A2
(VBG 4), VDE 0100 and other national directives. Comply with the information in the
documentation on electrical installation and the relevant directives. Responsibility for
compliance with and examination of the limit values of the EMC product standard EN
61800-3 for variable-speed electrical drive mechanisms is with the manufacturer of
the industrial plant or machine.
The documentation contains information on installation correct for EMC. The cables
connected to the frequency inverters may not be subjected to an isolation test with a
high test voltage without previous circuit measures.
1.6 Operation information
Warning! Before commissioningand the start of the intended operation, attach all
the covers and check the sockets. Check additional monitoring and pro-
tective devices pursuant to EN 60204 and the safety directives applicable
in each case (e.g. WorkingMachines Act, Accident Prevention Directives
etc.).
No connection work may be performed, while the system is in operation.
1.7 Maintenance and service
Warning! Unauthorized openingand improper interventions can lead to physical
injury or damage to property. Repairs on the frequency inverters may
only be done by the manufacturer or persons authorized by the latter.

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2 Introduction
This document describes the features of the Profibus-DP communication module CM-
PDP for the frequency inverter of the series ACT and ACU.
For the Profibus-DP connection, the frequency inverter must be equipped with the
Profibus-DP communication module CM-PDP. The Profibus component CM-PDP is en-
closed with the inverter as a separate part and must be fitted by the user. This is ex-
tensively described in the chapter "Assembly".
Note: These instructions are not to be understood as fundamental information
on the Profibus-DP. They presuppose underlying knowledge of the meth-
ods and modes of effect of the Profibus-DP on the part of the user.
In some points, setting and display possibilities are described alterna-
tively to the control unit KP500 via the VPlus PC program. The operation
of a PC with the VPlus program on the frequency inverter with use of the
Profibus component CM-PDP is only possible via an optional interface
adapter KP232 on the slot of the keypad.
The Profibus component CM-PDP has the ident number 0x0696 (hexadecimal). The
device's data set file has the designation VEC_0696.GSD and is attached to the ap-
pendix of this documentation. Identification number and designation of the GSD file
have been assigned by the Profibus user organization in Karlsruhe.
Attention! With the help of the Profibus-DP communication module CM-PDP it is
possible to access ALL parameters of the frequency inverter from the
external control. The control of the access by control levels with the
control unit KP500 or the PC software VPlus does not exist. A change of
parameters, whose meaningdoes not admit to the user can lead to the
inoperability of the frequency inverter.

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3Assembly of the Profibus-DP communication module CM-PDP
The Profibus component CM-PDP is delivered pre-fitted for assembly in a housing. In
addition, a PE spring is enclosed for the PE connection (screening) of the communica-
tion module.
Caution! Before the assembly of the Profibus component CM-PDP, the inverter
must be switched free of voltage.
Assembly under voltage is not admissible and leads to a destruction of the
frequency inverter and / or the Profibus component.
In the first step, the covers are to be removed. After this, the plug-in section for the
Profibus-DP communication module CM-PDP is accessible.
To start with, the supplied PE springis fitted with the help of the M4 screw in the
device. The spring must be aligned centrally.
The Profibus component CM-PDP can now be fitted and screwed onto the PE spring
with the M2 screw available on the module.
M4
M2
Caution! The Profibus-DP communication module CM-PDP is pre-fitted in a housing.
The PCB visible on the back may not be touched, as modules can be dam-
aged by this.
After this, the covers have to be fitted again. In the upper cover, the pre-stamped
breakthrough for plug X310 is to be broken out and the cover fitted again.

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4Socket occupancy/bus termination/line
The bus socket X310 (9-pole Sub-D) is occu-
pied according to the Profibus DP norm
EN50170.
Please take the details for the pin allocation
of the bus plug from the following table.
S1
X
310
The bus termination necessary on the bus
line in the physically first and last subscribe
r
can be activated via the DIP switch S1 on
the Profibus module.
The factory setting for the bus termination is OFF.
As an alternative, this is possible via corresponding circuits in the bus connection sock-
ets (e.g. made by Siemens).
VP (Pin 6
)
390 Ω
RxD/TxD-P (Pin 3)
220
Ω
RxD/TxD-N (Pin 8)
390
Ω
DGND (Pin 5)
data line
data line
Attention! It is absolutely necessary that only one of the two possibilities for the
bus termination is used and the bus termination is only switched on with
the first and last subscriber. If not, operation of the Profibus is not pos-
sible.
If the bus termination is activated on an inverter (Profibus component or
bus socket), it is only correctly effective if the inverter has contact to
voltage. If not, the bus is not operation-capable.
Bus plug X310
Pin Name Function
housing screen connected with PE
1 PE PE
2 not used -
3 RxD/TxD-P positive signal RxD/TxD-P, corresponding to RS485 B-Line
4 CNTR-P control signal for repeater
5 DGND isolated ground for bus connection
6 VP isolated 5V for bus connection
7 not used -
8 RxD/TxD-N negative signal RxD/TxD-N, corresponding to RS485 A-Line
9 not used -
Only admissible types are to be used for the bus socket. They must all be suited for
the 12 MBaud transmission rate.
This is, for example, type Profibus connector 12 MBAUD (6ES7 972-0BA11-0XA0)
from Siemens.
Only admissible types are to be used as a line for the Profibus (line type A).
This is, for example, type UNITRONIC-BUS L2/F.I.P. 1x2x0,64 from Lappkabel.
Attention! The line screen is to be connected to ground (PE) on both sides on a
large area and with good conductivity.

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5Baud rate setting/line length
The baud rate is not explicitly set. The Profibus component supports the Auto_Baud
function and independently determines the baud rate set on the bus.
Profibus-DP interface
Baud rate max. line length / m
9,6 kBaud 1200
19,2 kBaud 1200
45,45 kBaud 1200
93,75 kBaud 1200
187,5 kBaud 1000
500 kBaud 400
1500 kBaud 200
3000 kBaud 100
6000 kBaud 100
12000 kBaud 100
6Setting station address
A maximum of 126 slave frequency inverters can be operated on the Profibus-DP.
Each frequency inverter is given a node ID for its unambiguous identification; this ID
may only exist once in the system. The setting of the node ID is done via the parame-
ter Profibus Node-ID 391.
Parameter Setting
No. Description Min. Max. Fact. sett.
391 Profibus Node-ID 0 126 126
Note: After the setting of the station address via Profibus Node-ID 391, a reset
is automatically triggered on the frequency inverter, by which the settin
g
for the station address is accepted.
7Setting PPO type
As a function of the application in question, various objects with differinglengths and
contents are used for the exchange of data. The objects PPO1, PPO2, PPO3 and
PPO4 are available. These objects are set up accordingto the PROFIDRIVE profile.
The required object is to be set on the DP master in the hardware configuration.
There is no settingfor the required object on the frequency inverter, it sets itself
automatically to the projected object.
Profibus - Objects
PPO type Objects length / Bytes
1 12
2 20
3 4
4 12
Note: More information on the contents of the ob
j
ects PPO1 to PPO4, is to be
inferred from the chapter "Handling of the objects".

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7.1 Configuration process on the DP master
The configuration process of the frequency inverter with the Profibus communication
module CM-PDP is displayed here with the example of a Siemens STEP7 hardware
configurator. The process is principally valid for other confi
g
urations in an equivalen
t
form.
First, the GSD file VEC_0696.GSD is installed in the hardware configurator (if not al-
ready existent). This is done with the menu selection Extras \ Install new GSD.
Here, you enter the path and the name for the GSD file (VEC_0696.GSD).
If the GSD file has been installed, the frequency inverter appears under the selection
PROFIBUS-DP \ Further FIELD DEVICES \ Drives \ ACT 10
From this position, an ACT frequency inverter can now be connected to the required
Profibus phase by Drag & Drop.
T
he four possible ob
j
ects PPO1 to PPO4 are now visible under the menu poin
t
ACT 10. The required object is now assigned to the inverter by Drag & Drop.
The screen shot from the STEP7 hardware configuration shows an ACT frequency
inverter with the station address 3 and the object PPO2.

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8 Commands SYNC / FREEZE
The Profibus component supports the Profibus commands SYNC/UNSYNC and
FREEZE/UNFREEZE. These commands are used to synchronize a number of slaves.
With the FREEZE command, all the slaves keep their input data. They are then read
out in sequence by the bus master. As all the slaves keep their inputs simultaneously
with the FREEZE command, the bus master is given a process pattern of all the slaves
at a defined time. With the UNFREEZE command, this state is canceled and the slaves
update their inputs again.
With the SYNC command, all the slaves keep their outputs. Data arriving subsequentl
y
are not put through to the outputs, but buffered. The bus master can give new com-
mands to the slaves and activate all the slaves simultaneously with the UNSYNC com-
mand. They immediately take over the buffer data to their outputs with the UNSYNC
command.
9Available objects / scanning times
If a Profibus slave has been recognized, parameterized and convalued by its master
on the bus, there is a cyclic exchange of data with the DATA_EXCHANGE Profibus
service, in which the output data are transmitted from the master to the slave and the
input data from the slave to the master in one cycle. The repeat rate with which the
slaves carry out the exchange of data with the master, the so-called bus rotation time,
is a function of the transmission rate set, the number of subscribers and the size o
f
the objects transmitted. If there are few subscribers, a high transmission rate and
short objects being exchanged, bus rotation times of 1 to 2 ms are possible.
As it can be seen from what has just been said that the possible bus rotation time also
depends to a considerable extent on the size of the objects to be transmitted, the
frequency inverter offers a selection between four different objects PPO1 to PPO4.
In this way, an optimum adaptation to differing situations and requirements is possi-
ble.
The objects defined accordingto PROFIDRIVE principally have two components, which
are either completely, partly or not at all existent with the differingobjects PPO1 to
PPO4. These components are the communication channel and the process data chan-
nel.
The communication channel is used for access (write/read) to any parameters in
the frequency inverter. An exception is formed by the stringparameters, to which
there can be no access. The communication proceeds accordingto a firmly defined
hand-shake process and lasts for a number of DATA_EXCHANGE cycles.
The process data channel is processed in every cycle. The reference values are
accepted and the actual values forwarded. A data update thus takes place with every
DATA_EXCHANGE.
Direction of transmission Master ÎSlave (OUT)
communication channel process data channel
PKW area PZD area
PKE IND PWE PWE PZD 1 PZD 2 PZD 3 PZD 4 PZD 5 PZD 6
PWEh PWEl STW HSW - - - -
PKW Parameter identification value
PZD Process data channel STW = Control word HSW = Main reference value

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Direction of transmission Slave ÎMaster (IN)
communication channel process data channel
PKW area PZD area
PKE IND PWE PWE PZD 1 PZD 2 PZD 3 PZD 4 PZD 5 PZD 6
PWEh PWEl ZSW HIW VAL2 VAL3 VAL4 VAL5
PKW Parameter identification value
PZD Process data channel ZSW = State word HIW = Main actual value
Consistency area
communication channel process data channel
PKW area PZD area
PKE IND PWE PWE PZD 1 PZD 2 PZD 3 PZD 4 PZD 5 PZD 6
full length word word word word word word
The statement of the consistency describes the parts of the object which must have
consistent contents. The consistency states are encrypted in the configuration data of
the GSD file and have effects on the possible access mechanisms on the part of the
DP master. In this way, the 8 bytes of the communication channel in a PLC of type
Siemens S7 can only be reached via the special functions SFC14 (DPRD_DAT) and
SFC15 (DPWR_DAT). The words of the process data channel are directly addressable
as periphery words (PEW, PAW).
communication channel process data channel
PKE IND PWEh PWEl PZD1 PZD2 PZD3 PZD4 PZD5 PZD6
PPO1
PPO2
PPO3
PPO4
•The communication channel in PPO1 and PPO2 is treated identically.
•The process data channel PZD1 to PZD6 in PPO2 and PPO4 is firmly defined and
its contents cannot be altered.
•The process data channel PZD2 in PPO1 and PPO3 can be altered as regards its
contents, controlled via the user-specific bits in the control word STW in the PZD1.
Note: In the data transmission, the Motorola format is presupposed for the
position of Low/High byte front, as is also supported by a PLC of the type
Siemens S7. If the DP master supports the Intel format, Low/Hi
g
h byte
are to be swapped on the master side before transmission and after re-
ceipt.
Scan time
Regardless of the transmission speed on the Profibus, the scanning time of the in-
verter is a constant variable as a function of the object used.
PPO3 16 ms
PPO1/2/4 32 ms
An update of the data between the frequency inverter and the Profibus side is done
with this scanning time.

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10 Handling of the objects
10.1 Communication channel
The communication channel (PKW area) has the following structure:
PKW Bereich
Designation PKE IND PWE-high PWE-low
Inhalt Parameter
identification
Index Parameter value
High-Word
Parameter value
Low-Word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low Byte High
Byte
Low Byte
Index 0
Byte No. 0 1 2 3 4 5 6 7
The data are transmitted in the Motorola format as, for example, supported by the
S7 PLC from Siemens. Thus, the high byte is on the lower byte and the low byte on
the higher byte.
Note: The index is always on the high byte of "Index“ (Byte No. 2), with the low
byte always = 0.
Structure of the parameter identification (PKE):
PKE High Byte Low Byte
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
AK SPM PNU
AK: Order or reply identification (value range 0 ..15)
SPM: Toggle bit for spontaneous result processing
PNU: Parameter number (value range 1 to 999)
•The order and reply identifications are stored in the AK area. If no parameter
processing is to be done, the "no order" kind of function is to be set.
•With bit 11 (SPM), the readiness for spontaneous report processingcan be
switched on and off (0 = OFF, 1 = ON, in the present application, the spontane-
ous report processing is not support, so SPM is always 0).
•The PNU area transmits the number of the parameter to be processed.
Parameter values (= data) of the type Integer/Unsigned Integer (16 Bit) and Long(32
Bit) can be written and read. The data type is specific in the order identification. In
data set change-over capable parameters (array) the required data set is stated under
Index.
Note: An Excel file, which can be requested, exists for the necessary information
on the parameters with regard to the data type and data set change-over
capacity.

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10.1.1 Order identification
Structure of the order identification AK (output data set, Master ÎSlave)
Order identification
AK
Data type Function
0 - no order
1 int/uint , long read parameter value
2 int/uint write parameter value int/uint
3 long write parameter value long
6 int/uint , long Array read parameter value Array
7 int/uint Array write parameter value int/uint Array
8 long Array write parameter value long Array
Array: Applies for data set change-over capable parameters; then the required data
must be specified in INDEX. Apart from this, INDEX = 0.
10.1.2 Reply identification
Structure of the reply identification AK (input data set, Slave ÎMaster)
Reply identification
AK
Data type Function
0 - no order
1 int/uint transmit parameter value int/uint
2 long transmit parameter value long
4 int/uint Array transmit parameter value int/uint Array
5 long Array transmit parameter value long Array
7 - order cannot be implemented
8 - no control sovereignty for PKW interface
•If the reply identification = 7 (order cannot be implemented), an error code is
inserted in PWE low (Byte 6/7).
•If the reply identification = 8 (no control sovereignty), the master has no writin
g
right onto the slave.
10.1.3 Fault messages
Codingof the fault messages in the reply data set PWE Low/Low Byte at
Byte 7 (Slave ÎMaster):
Fault No. (dec.)
acc. to PROFIDRIVE
Meaning
0 Inadmissible parameter number PNU
1 Parameter value cannot be altered
2 Lower or upper parameter value limit exceeded
3 Faulty data set
4 no data set change-over capable parameter
5 Wrong data type
18 Other fault
Extension Meaning
101 Parameter cannot be read
103 Fault occurred in reading the EEPROM
104 Fault occurred in writing the EPROM
105 Check sum fault in EEPROM occurred
106 Parameter may not be written in operation
107 Values of the data sets differ
108 Unknown order

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10.1.4 Parameters, data set selection and cyclic writing
Parameters to be set can be seen from the parameter list referring to the configura-
tion of the standard operating instructions. In the parameter list, state whether a pa-
rameter is data set change-over capable (data set/INDEX = 1 to 4) or only exists once
(data set/INDEX = 0).
The parameter list also gives information about the display format of a parameter and
its type (int/uint/long). String parameters cannot be transmitted due to the possible
number of bytes.
The values transmitted are always integer values. For values with decimal places, the
decimal point is not transmitted.
The word IND passes on the required data set of the parameter. In the present appli-
cation, the parameter set number 0 is simply assigned to existing parameters; a selec-
tion from multiple (data set change-over capable) existing parameters is done by in-
putting a number from 1 to 4.
The actual parameter value is transmitted in the PWE area; as a 16 Bit value (int/uint)
it occupies PWEl, as a 32 Bit value (long) PWE hi
g
h and PWE low, with the hi
g
h word
being in PWE high.
Typically, parameters are addressed via the data set (IND) = 0, 1 to 4. The input of
the values is thus done on the controller and automatically into the EEPROM. If values
are written cyclically with a higher repeat rate, no entry may be made into the
EEPROM, as the latter only possesses a limited number of admissible writingcycles
(approx. 1 million cycles).
Caution! If the number of admissible writing cycles is exceeded, the EEPROM is
destroyed.
To avoid this, cyclically written data can only be transmitted into the RAM without a
writing cycle onto the EEPROM. The data are then not stored secure against zero volt-
age and must be written again after a Power off/on.
T
his mechanism is activated by the tar
g
et data set bein
g
increased by five in the
specification of the data set (IND).
Entry only into the RAM:
EEPROM RAM
Entry into data set 0 Data set (IND) = 5
Entry into data set 1 Data set (IND) = 6
Entry into data set 2 Data set (IND) = 7
Entry into data set 3 Data set (IND) = 8
Entry into data set 4 Data set (IND) = 9
Writing access to data set change-over capable parameters is to be considered as a
further special point. If the values of a data set change-over capable parameter are to
be set to the same value in all data sets, the parameter can be written via the data
set (IND) 0.

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16 06/05
10.1.5 Sequence of communication
An order of the master is always answered by a reply from the slave. Each PPO can
always only accept one order or one reply. In this way, a defined hand-shake proce-
dure between master and slave is to be complied with.
In the initial situation, order and reply identification must = 0. The master sets its
order identification and waits for the slave to change the reply identification from 0 to
≠0. Now, the reply from the slave is available and can be evaluated. Thereupon, the
master sets its order identification = 0 and waits for the slave to change the reply
identification from ≠0 to 0. With this, the communication cycle is completed and a
new one can start.
Attention! The slave only replies to new orders if it has reacted to the order identi-
fication = 0 with the reply identification = 0.
Idle
order identification Master = 0
reply identification Slave = 0
an order can
be started
Master set data
+ order identification
evulate reply data of the slave
set order identification = 0
reply
identification
of the slave
unequal 0 ?
True
True
False
False

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06/05 17
10.1.6 Examples of communication
Parameter Setting
No. Description Type Write /
Read
Format Min. Max. Fact.
sett.
400 Switching frequency P-W S/L x 1 8 2
480 Fixed frequency 1 P[I]-D S/L xxxx.xx Hz -999.00 999.00 5.00
Parameter 400 is one word (P-W), int, not data set switch-over capable and is to be
read.
Order from Master:
AK = 1 (order identification = read parameter value)
PNU = 400 (= 0x190)
IND = 0
PWEh = 0
PWEl = 0
PKW area
Designation PKE IND PWE high PWE low
Content Parameter
identification
Index Parameter value
High Word
Parameter value
Low Word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low Byte High Byte Low Byte
0x11 0x90 0 0 0 0 0 0
Byte No. 0 1 2 3 4 5 6 7
Reply from Slave:
AK = 1 (reply identification = transmit parameter value int/uint)
PNU = 400 (= 0x190)
IND = 0
PWEh = 0
PWEl = value
PKW area
Designation PKE IND PWE high PWE low
Content Parameter
identification
Index Parameter value
High Word
Parameter value
Low Word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low Byte High Byte Low Byte
0x11 0x90 0 0 0 0 0 Wert
Byte No. 0 1 2 3 4 5 6 7
Parameter 480 is a double word (P[I]-D), long, data set change-over capable and is
to be written. The target data set is data set 3.
Reference value = -300.00 Hz (-30000 is transmitted)
The negative value is portrayed as follows in accordance with integer arithmetic:
0xFFFF8AD0

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Order from Master:
AK = 8 (order identification = write parameter value long Array)
PNU = 480 (= 0x1E0)
IND = 3
PWEh = 0xFFFF
PWEl = 0x8AD0
PKW area
Designation PKE IND PWE high PWE low
Content Parameter
identification
Index Parameter value
High Word
Parameter value
Low Word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low Byte High Byte Low Byte
0x81 0xE0 3 0 0xFF 0xFF 0x8A 0xD0
Byte No. 0 1 2 3 4 5 6 7
Reply from Slave:
AK = 5 (reply identification = transmit parameter value long Array)
PNU = 480 (= 0x1E0)
IND = 3
PWEh = 0xFFFF
PWEl = 0x8AD0
PKW area
Designation PKE IND PWE high PWE low
Content Parameter
identification
Index Parameter value
High Word
Parameter value
Low Word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low Byte High Byte Low Byte
0x51 0xE0 3 0 0xFF 0xFF 0x8A 0xD0
Byte No. 0 1 2 3 4 5 6 7