SEW-Eurodrive 31C014-503-4-21, 31C005-503-4-21, MOVITRAC, 31C007-503-4-21, 31C011-233-4-21 User Manual

08/198/96

T

MOVITRAC® 31..

Frequency Inverters

I

NTERBUS

Fieldbus Interface

(FFI31.. option and size 0/I

NTERBUS

)

Manual

Edition 1/99

0922 6915 / 199

U

L

®

C

U

L

®

2

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

Important Notes

Important Notes

• Read this user manual carefully before you start installation and commissioning work on

MOVITRAC

®

frequency inverters with fieldbus options.

This user manual assumes that the user is familiar with and has at his disposal all relevant
documentation on the MOVITRAC

®

system, particularly the installation and operating

instructions.

• Safety notes:
Always follow the safety notes contained in this user manual.
Safety notes are marked as follows:

Electrical hazard, e.g. during live working

Mechanical hazard, e.g. when working on hoists.

Important instructions for the safe and fault-free operation of the system, e.g. pre-

setting before commissioning.Failure to follow these instructions may result in injury to
people and damage to property.

• General safety notes for bus systems:
The fieldbus option gives you a communications system which allows you to match the
MOVITRAC

®

31.. drive system to the specifics of your application to a very high degree. As
with all bus systems there is, however, the risk of parameters being changed, which will not
show outside (i.e. the inverter) but affect the behaviour of the inverter. This may result in
unexpected (not uncontrolled, though) system behaviour.

• In these instructions, cross-references are marked with an →, e.g.,
(→ MC_SHELL) means: Please refer to the MC_SHELL User Manual for detailed information
or information on how to carry out this instruction.
(→ section x.x) means: Further information can be found in section x.x of this user manual.

• Each unit is manufactured and tested to current SEW-EURODRIVE technical standards and
specifications.
The manufacturer reserves the right to make changes to the technical data and designs as
well as the user interface herein described, which are in the interest of technical progress.
A requirement for fault-free operation and fulfilment of any rights to claim under guarantee
is that these instructions and notes are followed.
These instructions contain important information for servicing, they should therefore be
kept near the unit.

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Contents

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

3

Page

1 Introduction ..............................................................................................4

2 Assembly / Installation Instructions .................................................................6

2.1 Fitting the FFI31.. interface...............................................................................................6

2.1.1 Scope of Delivery...................................................................................................6

2.1.2 Supported Inverter Types......................................................................................6

2.1.3 Fitting the Interface PCB........................................................................................6

2.2 Installing the MOVITRAC

®

31.. size 0 with I

NTERBUS

......................................................7

2.3 Pin Assignment................................................................................................................8

2.4 Screening and Laying of the Bus Cables..........................................................................9

2.5 Setting the Process Data Length......................................................................................9

2.6 Display Elements ...........................................................................................................10

3 Configuring and Commissioning ................................................................... 11

3.1 Inverter Control Mode ‘Fieldbus’....................................................................................11

3.2 Parameter P801 “Save” .................................................................................................12

3.3 Bus Topologies with MOVITRAC

®

31............................................................................13

3.3.1 Direct Connection to DCB Master Modules..........................................................13

3.3.2 Direct Connection to DAB Master Modules..........................................................14

3.3.3 Integration in 8-Wire Remote Bus Systems.........................................................14

3.4 Inverter Module Identity.................................................................................................15

3.5 Configuring the Master Module .....................................................................................15

3.5.1 Configuring for 1 Process Data Word..................................................................16

3.5.2 Configuring for 2 Process Data Words................................................................17

3.5.3 Configuring for 3 Process Data Words................................................................18

4 The PMS Interface .................................................................................... 19

4.1 PMS Services ................................................................................................................19

4.1.1 Initiate .................................................................................................................19

4.1.2 Abort ...................................................................................................................20

4.1.3 Reject ..................................................................................................................20

4.1.4 Identify ................................................................................................................20

4.1.5 Get-0V .................................................................................................................20

4.1.6 Status..................................................................................................................20

4.1.7 Read....................................................................................................................20

4.1.8 Write....................................................................................................................20

4.2 Object List......................................................................................................................21

4.2.1 Object Description of the Drive Parameters........................................................21

4.2.2 “Download Parameter Block” Object...................................................................22

4.2.3 “Universal Write Parameter” Object.....................................................................23

4.2.4 “Universal Read” Functionality Objects................................................................24

5 Parameter Adjustment Return Codes.............................................................. 27

5.1 Internal Communications Error......................................................................................27

6 Technical Data ........................................................................................ 28

6.1 FFI31.. Interface Technical Data.....................................................................................28

6.2 Technical Data MOVITRAC

®

31.. BG0/I

NTERBUS

............................................................29

Appendix A............................................................................................. 30

Index .................................................................................................... 31

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4

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

1 Introduction

1 Introduction

This FFI 31.. I

NTERBUS

Interface Manual describes the procedure for installing the FFI 31C I

NTER-

BUS Interface in the inverter and for commissioning the MOVITRAC® 31.. size 0 inverter with
integrated I

NTERBUS

interface when connected to an I

NTERBUS

fieldbus system.

In addition to describing all the settings on the fieldbus interface, this manual further discusses the
various options for connecting the inverter to I

NTERBUS

in the form of brief commissioning

examples.
In addition to this I

NTERBUS

Interface Manual, you should order the following more detailed docu-

mentation on the I

NTERBUS

fieldbus interface in order to connect the MOVITRAC® 31.. simply and

efficiently to the I

NTERBUS

fieldbus system

• MOVITRAC

®

31.. Fieldbus Unit Profile Manual (Order no. 0922 7016)

• MOVITRAC

®

31.. Communications Interfaces and Parameter List (Order no. 0923 0580)

The MOVITRAC

®

31.. Fieldbus Unit Profile Manual gives a detailed description of the fieldbus
parameters and their codings and discusses various control concepts and application options in
the form of brief commissioning examples.

The MOVITRAC

®

31.. Parameter List contains a list of all the inverter’s parameters that can be read
or written via the various communication interfaces such as the RS-232, RS-483 and via the field­bus interface.

The MC_Shell software makes it straight forward and easy to operate the inverter and set the
parameters, including the parameters for the fieldbus. This software can be ordered from SEW
under the number 0921 2949.

MOVITRAC

®

31.. and I

NTERBUS

The inverter unit profile for I

NTERBUS

mode, i.e. the way the inverter operates and responds when

in I

NTERBUS

mode, is independent of the type of fieldbus, and thus consistent for all fieldbus types.
This allows the user to develop his drive applications independent of a particular fieldbus or change
to another bus system, e.g. the open standardized PROFIBUS-DP/FMS (FFP 31C option) fieldbus
system.

MOVITRAC

®

31.. offers digital access to all drive parameters and functions via the I

NTERBUS

Inter­face. The inverter is controlled by the high-speed cyclic process data. This process data channel
provides the facility to specify setpoints such as setpoint speeds, ramp generator times for acceler­ation and deceleration etc., as well as various drive functions such as enable, controller inhibit,
stop, rapid stop, etc. to be triggered. This channel can also be used to read back actual values from
the inverter, such as actual speed, current, unit status, error number or reference messages.

Whereas process data are generally exchanged in cycles, the drive parameters can only be read
and written acyclically via the READ and WRITE services. This exchange of parameter data enables
applications where all major drive parameters are stored in the higher-level automation unit to be
implemented, thus avoiding manual adjustment of parameters on the inverter itself, which can
often be very time-consuming.

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MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

5

Introduction 1

00469AEN

Fig. 1: I

NTERBUS

with MOVITRAC® 31..

The I

NTERBUS

Interface option pcb is designed so that all I

NTERBUS

specific settings, such as the
process data length, can be made on the interface by means of a hardware switch. These manual
settings enable the inverter to be integrated into the I

NTERBUS

system and switched on in a very

short space of time. Parameters can be set fully automatically by the higher-level I

NTERBUS

master
(parameter download). This forward-looking version offers the benefits of a shorter commission­ing period for the plant as well as simpler documentation of the application program, as all major
drive parameter data can now be recorded directly in the control program.

The use of a fieldbus system in drive technology requires additional monitoring functions, such as
fieldbus timeout or special emergency stop concepts. The monitoring functions of the MOVITRAC

®

31.. can be matched to the specific application for which it is to be used. This feature enables you,
for instance, to specify which error response the inverter should trigger if an error should occur in
the bus. A rapid stop will be practical for many applications, but it is also possible to freeze the last
setpoints, so that the drive can continue with the last valid setpoints (e.g. conveyor belt). As the
functionality of the control terminals is also ensured when the inverter is operated in the fieldbus
mode, fieldbus-independent emergency stop concepts can still be implemented via the inverter’s
terminals.

The MOVITRAC

®

31.. inverter offers numerous diagnostic facilities for commissioning and servic­ing. For instance, both the setpoints transmitted from the higher-level control unit as well as the
actual values can be checked with the fieldbus monitor in the hand-held keypad. It also provides
you with a lot of additional information on the status of the fieldbus option pcb. The PC software
MC_SHELL offers even more convenient diagnostic facilities in that it provides a detailed display of
the fieldbus and unit status information as well as the facility to set all the drive parameters (includ­ing the fieldbus parameters).

P P P P

INTERBUS

P

INTERBUS

EURODRIVE

SEW

841 FELDBUS

STEUERM O DE

EQ

EURODRIVE

SEW

EURODRIVE

SEW

841 FELDBUS

STEUERMODE

EQ

EURODRIVE

SEW

EURODRIVE

SEW

841 FELDBUS

STEUER MO DE

EQ

EURODRIVE

SEW

MOVITRAC

MOVITRAC

MOVITRAC

841

EQ

841

EQ

INTERBUS-S
ModuleIdent.

227

Fieldbus

CONTROL MODE

Frequency inverter

Input/output modules

Controller

I B Master

NTER US

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6

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

2

Assembly / Installation

Instructions

2 Assembly / Installation Instructions

The following section describes assembly and installation of the MOVITRAC® 31.. inverter for inte­gration in an Interbus system.

Sizes 1...4 of the MOVITRAC

®

31.. inverter are connected to the I

NTERBUS

via the FFI31 interface.

The standard basic unit of the MOVITRAC

®

31.. Size 0 contains an integrated Interbus interface.

To set the fieldbus parameters you will need the FBG31.. keypad for MOVITRAC

®

31.. and/or the

latest version of the MC_SHELL software.

2.1 Fitting the FFI31.. interface

This option is either delivered separately, so that you will have to install it yourself, or you can
order an inverter which comes complete with the FFI31 interface installed.

2.1.1 Scope of Delivery

The FFI31 interface comprises the following components:

– 1 FFI31C (INTERBUS) interface pcb
– 3 fastening screws
– 1 housing cover
– earthing clamp for the outgoing remote bus

Please check to see that delivery is complete.

2.1.2 Supported Inverter Types

The FFI31.. interface for connection to an I

NTERBUS

system can be operated with the MOVITRAC

®

31 inverters sizes 1...4 as follows:
FFI31A interface: for MOVITRAC

®

31B inverters when the service code of the size 4 group is

greater than or equal to 14 (→ Assembly and Installation of MOVITRAC

®

31B,

Sec. 4).

FFI31C interface: for all MOVITRAC

®

31C inverters, sizes 1...4.

2.1.3 Fitting the Interface PCB
Before you begin:

• Before touching the pcb discharge yourself with the appropriate measures (earthing band,
conductive shoes, etc.)

• Store the pcb in the original package and only unpack immediately before installation.

• Do not touch the pcb more often than necessary and hold only by the edges. Do not touch
components.

Installation of the pcb:

• Disconnect inverter from the supply. Switch off mains supply and, if applicable, the 24 V supply.

• Take off the lower protective cover.

• Unscrew and remove the housing (screw located under the cover for the keypad).

• Unscrew the EPROM pcb and remove it from the X20 connector.

• Push the FFI31.. pcb into the X20 connector and fasten with the screws.

• Take the fitted cover out of the housing and replace it with the cover delivered with the option.

• Replace the housing and fasten with the screws.

• Replace the lower protective cover.

The FFI31.. is now completely fitted.

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MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

7

Assembly / Installation

Instructions

2

00305AEN

Fig. 2: FFI31.. option

2.2 Installing the MOVITRAC® 31.. size 0 with I

NTERBUS

Size 0 inverters (MOVITRAC® 31.. Size 0 with I

NTERBUS

) have the I

NTERBUS

interface already

installed as a standard in the basic unit (→ Fig. 3).

02125AXX

Fig. 3: MOVITRAC

®

Inverter with I

NTERBUS

interface and the FBG31 keypad.

EPROM

DPRAM

Supi

S1

X2: X3:

X20:

X9: X10:

Two-wire

remote bus input

Two-wire

remote bus output

LED green:
LED green:
LED green:
LED green:
LED red:

UL
RC
BA
TR

RD

Flash EPROM

Processor

Process data length

MOVITRAC processor pcb

®

1

2

3

4

1 DIP switch for setting the pro-

cess data length.

2 Five LEDs for diagnosis of the

I

NTERBUS

system.

3 9-pin sub-D connector, male

(input for remote bus).

4 9-pin sub-D connector, female,

(output for remote bus).

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8

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

2

Assembly / Installation

Instructions

2.3 Pin Assignment

The MOVITRAC

®

31.. inverter is connected to the I

NTERBUS

system via the 2-wire remote bus by a
6-core screened cable with twisted-pair signal leads. The 2-wire remote bus basically consists of
an RS-485 Data Out channel (signal lines DO and DO

) as well as of the RS-485 Data In channel

(signal lines DI and DI

).

There is a 9-pin sub-D connector (male) for the remote bus output and a 9-pin sub-D connector
(female) for the remote bus input on the inverter itself. The incoming remote bus cable must have
a female 9-pin sub-D connector and the outgoing remote bus cable must have a male 9-pin sub-D
connector.

Incoming remote bus on the remote bus input.

02092AEN

Fig. 4: Assignment of the 9-pin sub-D connector of the incoming remote bus cable

Outgoing remote bus on the remote bus output.

02093AEN

Fig. 5: Assignment of the 9-pin sub-D connector of the outgoing remote bus cable

6
1
7
2
3

DO

DO

DI

DI

COM

1
2
3
4
5

6
7
8
9

Brown

Grey

Pink

Yellow

Green

connector housing and screen.

Conductive connection between

connector (female)

9-pin sub-D

Twisted-pair signal
cables

1
2
3
4
5

6
7

8
9

6

1
7

2
3
5
9

DO

DO

DI

DI

COM

Brown

Grey

Pink

Yellow

Green

connector housing, cable shield.

Conductive connection between

Bridged

cables

Twistet -pair signal

connector (male)

9-pin sub-D

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MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

9

Assembly / Installation

Instructions

2

2.4 Screening and Laying of the Bus Cables

The I

NTERBUS

Interface supports RS-485 transmission technology and requires as a physical

medium the 6-core, screened, two-wire twisted-pair cable specified for I

NTERBUS

.

Technically correct screening of the bus cable absorbs the electrical interference that can occur in
an industrial environment. You will achieve the best screening results if you adopt the following
measures:

• Hand-tighten the fixing screws of plugs, modules and equipotential bonding conductors

• Only use plugs with metal or metal-plated housings

• Connect the screening in the plug over as large an area as possible

• Connect the screening at both ends of the bus cable

• Do not lay signal and bus cables parallel to power cables (motor leads), but wherever possible in
separate cable conduits

• In an industrial environment use metallic, earthed cable trays

• Run signal cables and the associated equipotential bonding conductor as close as possible to
each other, using the shortest route

• Avoid extending bus cables through the use of connectors

• Run the bus cables close to existing earthed surfaces

IMPORTANT!

In the event of fluctuations in the earth potential, a circulating current may flow through any
screening which may be connected at both ends and connected to the earth potential (PE). In this
case, ensure there is adequate equipotential bonding in accordance with the relevant safety provi­sions.

In the event of further questions regarding the installation of the bus system, refer to the I

NTERBUS

installation manual IBS SYS INST UM (Order No. 2754286, PHOENIX CONTACT), from which the
points mentioned above were also taken.

2.5 Setting the Process Data Length

The MOVITRAC

®

31.. inverter communicates via I

NTERBUS

with the higher-level control both via the
rapid cyclical process data channel and via the acyclical parameter channel (PCP, Peripherals
Communication Protocol). The number of process data words to be transmitted in the process
data channel is variable and can be adjusted using the DIP switches on the I

NTERBUS

Interface. In
general you have a choice between one, two and three process data words. In all three cases, the
inverter can be parameterized at any time via the PCP channel.

00308AEN

Fig. 6: Setting the process data length in process data words

OPEN

1 2 3 4

ON

S1
S2

S3
S4

S1 S2

OFF

OFF

OFF

OFF

ON ON

ON

ON 1PD

2PD

3PD

--

Setting as supplied: 2PD

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10

MOVITRAC® 31.. I

NTERBUS Fieldbus Interface

2

Assembly / Installation

Instructions

An example of the DIP switch settings for all three data process lengths is shown in Fig. 7 below.
Switches S3 and S4 are not allocated. These DIP switches are only evaluated when the inverter is
started up, i.e. when power is connected (mains and external 24 V supply). This means that the
inverter has to be switched on again when the process data length is changed (mains and 24 V).

00309AEN

Fig. 7: Example for setting the process data length

2.6 Display Elements

The FFI 31C.. interface has five LEDs for diagnosing the I

NTERBUS

system. These LEDs provide infor-

mation about the status of the I

NTERBUS

system. The meaning of each LED is shown in Table 1.

Table 1: Meaning of the diagnostic LEDs for I

NTERBUS

Order of LEDs in

the MOVITRAC

®

31.. sizes 1...4 the MOVITRAC® 31.. size 0

00310BXX

Fig. 8: Display elements

LED Name Colour Status Meaning

UL (green) green on Logic voltage FFI 31 C interface
RC (green) green on Incoming remote bus ready for operation (remote bus link o.k.)
BA green on Bus in operation
TR green on / flickering Parameter data exchange via PCP channel
RD red on Onward remote bus off

1 2 3 4

1 2 3 4

1 2 3 4

OPEN

OPEN

OPEN

S1
S2
S3
S4

S1
S2
S3
S4

S1
S2
S3
S4

ON ON ON

Setting:
3 process data words

Setting:
2 process data words

Setting:
1 process data word

UUL

L

RRC

C

BBA

A

TTR

R

RRD

D

INTERBUS-S

Module Ident.

227

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