Siemens SIMATIC EM 148-FC User manual

Preface, Contents
Product Overview 1
Wiring 2
Commissioning and Diagnostics 3
Functions and
Technical Specifications 4
Mode of Functioning 5
Appendices
Order Numbers A
Dimensioned Drawing B
Index
Edition 04/2003
A5E00065321-03
EM 148-FC
Frequency Converter
Manual
SIMATIC
This manual is part of the documentation
package with the order number
6ES7198-8FA01-8BA0
The following supplement is part of this documentation:
No. Product Information Drawing number Edition
1 Product information A5E00476687-03 07/2007

!Danger
indicatesthat death, severe personal injury or substantial property damage will result if proper precautions
are not taken.
!Warning
indicates that death, severe personal injury or substantial property damage can result if proper
precautions are not taken.
!Caution
indicates that minor personal injury can result if proper precautions are not taken.
Caution
indicates that property damage can result if proper precautions are not taken.
Notice
draws your attention to particularly important information on the product, handling the product, or to a
particular part of the documentation.
Qualified Personnel
Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground and to tag circuits, equipment, and
systems in accordance with established safety practices and standards.
Correct Usage
Note the following:
!Warning
This device and its components may only be used for the applications described in the catalog or the
technical description, and only in connection with devices or components from other manufacturers which
have been approved or recommended by Siemens.
This product can only function correctly and safely if it is transported, stored, set up, and installed
correctly, and operated and maintained as recommended.
Trademarks SIMATIC, SIMATIC HMIand SIMATIC NETare registered trademarks of SIEMENS AG.
Third parties using for their own purposes any other names in this document which refer to trademarks
might infringe upon the rights of the trademark owners.
Safety Guidelines
This manual contains notices intended to ensure personal safety, as well as to protect the products and
connected equipment against damage. These notices are highlighted by the symbols shown below and
graded according to severity by the following texts:
We have checked the contents of this manual for agreement
with the hardware and software described. Since deviations
cannot be precluded entirely, we cannot guarantee full
agreement. However, the data in this manual are reviewed
regularly and any necessary corrections included in
subsequent editions. Suggestions for improvement are
welcomed.
Disclaimof LiabilityCopyright W Siemens AG 2002-2003 All rights reserved
The reproduction, transmission or use of this document or its
contents is not permitted without express written authority.
Offenderswill be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or
design,are reserved.
Siemens AG
Bereich Automation and Drives
Geschaeftsgebiet Industrial Automation Systems
Postfach 4848, D- 90327 Nuernberg SiemensAG 2003
Technical data subject to change.
Siemens Aktiengesellschaft A5E00065321-03

iii
EM 148-FC FrequencyConverter
A5E00065321-03
Preface
Purpose of the manual
This manual supplements the ET 200X Distributed I/O Device manual. It describes
the functions of the EM 148-FC frequency converter. The manual doesn’t describe
any functions relating to the ET 200X itself. You can find descriptions of these in
the ET 200X Distributed I/O Device manual.
Knowledge required
A general grasp of automation engineering is required to understand the manual.
Scope of validity of the manual
This manual is valid for the components of the EM 148-FC frequency converter
specified in Appendix A.
This manual contains a description of the components that were valid at the time
the manual was published. We reserve the right to enclose a product information
document containing up-to-date information about new components and new
versions of components.
Changes since the previous edition of the manual
The following changes have been made/sections have been added since the
previous edition of the manual:
EM 148-FC frequency converter with new rated motor output:
from 0.1 to 1.5 kW

iv EM 148-FC Frequency Converter
A5E00065321-03
Certification, recognition, approval
The EM 148-FC frequency converter has the following certification:
CSA certification:
Underwriters Laboratories Inc. in accordance with
UL 508 (Industrial Control Equipment)
CSA C22.2 No. 142 (Process Control Equipment)
CE marking
The EM 148-FC frequency converter fulfills the requirements and protection
objectives of the following EC directives:
73/23/EEC (low-voltage directive)
89/336/EEC (EMC directive)
Australian C-Tick mark
The EM 148-FC frequency converter fulfills the requirements of the
AS/NZS 2064 standard (Australia and New Zealand).
Standards
The EM 148-FC frequency converter fulfills the requirements and criteria of
IEC 61131-2.
The EM 148-FC frequency converter is based on the
IEC 61784-1:2002 Ed1 CP 3/1 standard.

Preface
v
EM 148-FC Frequency Converter
A5E00065321-03
Position in the information landscape
This delivery package (order number: 6ES7 198-8FA01-8BA0) consists of
4 manuals with the following contents:
BM 147/CPU
Basic Module
Installation and wiring
Commissioning and
diagnostics
Technical
specifications
of digital and analog
modules
Order numbers
for digital and analog
modules
ET 200X
Distributed I/O Device EM300 Motor Starter
Wiring
Commissioning
and diagnostics
Technical
specifications
Order numbers
Addressing
ET 200X with
BM 147/CPU in
PROFIBUS
sub-network
Commissioning
and diagnostics
Technical
specifications
Order numbers
STEP 7 instructions
Wiring
Commissioning
and diagnostics
Functions and
technical
specifications
EM 148-FC
Frequency Converter
Aids to finding information
To help you find special information quickly, the manual contains the following
access aids:
At the beginning of the manual you will find a full table of contents and separate
lists of the figures and tables contained in the manual.
In the chapters of the manual you will find information in the left-hand column
on each page that provides you with an overview of the contents of the relevant
section.
After the appendices you will find a glossary containing definitions of important
technical terms used in the manual.
At the end of the manual you will find a detailed index that enables you to find
the information you require quickly and easily.
Special information
In addition to this manual, you will need the manual on the DP master used.
Note
You can find an exact list of the contents of the ET 200X manuals in Section 1.3 of
this manual. We recommend that you begin by reading this section so as to find
out which parts of which manuals are most relevant to you in helping you to do
what you want to do.

vi EM 148-FC Frequency Converter
A5E00065321-03
Recycling and disposal
The EM 148-FC frequency converter is low in contaminants and can be recycled.
To recycle and dispose of your old device in an environment-friendly manner,
contact a company certified to deal with electronic waste.
Additional support
If you have any questions on how to use the products described in the manual that
are not answered here, please get in touch with your Siemens representative or
office.
http://www.ad.siemens.de/partner
Training center
To smooth your path when getting started with the xxx and the SIMATIC S7
programmable logic controller, we offer courses. Please contact your regional
training center or the central training center in
D-90327 Nuremberg.
Phone: [phone].
Internet: http://www.sitrain.com

Preface
vii
EM 148-FC Frequency Converter
A5E00065321-03
A&D technical support
Available throughout the world at any time of day:
Johnson City
Nuremberg
Beijing
Technical support
Worldwide (Nuremberg)
Technical support
Loc. time: 0:00 to 24:00 / 365 days a
year
Phone: [phone]
Fax: [phone]
E-mail: adsupport@
siemens.com
GMT: +1:00
Europe/Africa (Nuremberg)
Authorization
Loc. time: Mon-Fri 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-mail: adsupport@
siemens.com
GMT: +1:00
United States (Johnson City)
Technical support and
authorization
Loc. time: Mon-Fri 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-mail: simatic.hotline@
sea.siemens.com
GMT: -5:00
Asia/Australia (Beijing)
Technical support and
authorization
Loc. time: Mon-Fri 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-mail: adsupport.asia@
siemens.com
GMT: +8:00
Technical Support and authorization staff generally speak German and English.

viii EM 148-FC FrequencyConverter
A5E00065321-03
Service & support on the Internet
In addition to our documentation, we also make all our knowledge available online
on the Internet.
http://www.ad.siemens.de/support
There you will find:
The newsletter, which keeps you up to date with all the latest information on
your products
The documents you require (by using the service & support search function)
A forum in which users and specialists throughout the world exchange their
experiences
Your contact for Automation & Drives locally (by using our contact database)
Information on on-site service, repairs, and spare parts. You will find much more
besides under “Services”.

iii
EM 148-FC Frequency Converter
A5E00065321-03
Contents
Preface
1 Product Overview
1.1 What is the Frequency Converter? 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Conditions for use 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Guide to the ET 200X manuals 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Wiring
2.1 Wiring rules 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Wiring the Frequency Converter 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.1 Preparing the connecting cables 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.2 Wiring the power connections 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2.3 Electrical configuration 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Commissioning and Diagnostics
3.1 Configuration 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Parameter assignment 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Commissioning after a lengthy storage period 3-4. . . . . . . . . . . . . . . . . . . . . . .
3.4 Unusual operating conditions 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Status indication by means of LEDs 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Frequency Converter diagnosis with STEP 5 or STEP 7 3-7. . . . . . . . . . . . . .
4 Functions and Technical Specifications
4.1 Cyclic data traffic 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Output data object (control interface) 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Input data object (feedback interface) 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Error acknowledgment 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Parameters 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 Parameters of the Frequency Converter 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2 Meaning of the parameters 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Inching mode 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Inching mode from the programmable controller 4-17. . . . . . . . . . . . . . . . . . . . .
4.3.2 Inching mode using the hand-held controller 4-18. . . . . . . . . . . . . . . . . . . . . . . .
4.4 Technical specifications 4-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Mode of Functioning
5.1 Operating procedure following voltage recovery 5-2. . . . . . . . . . . . . . . . . . . . .
5.2 Changing the motor’s direction of rotation 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Applications 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Order Numbers
B Dimensioned Drawing1
Index

Contents
iv EM 148-FC Frequency Converter
A5E00065321-03
Figures
1-1 Connectors and indicators of the EM 148-FC frequency converter 1-3. . . . .
2-1 Power connectors 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Schematic representation of the connections
of the EM 148-FC (example) 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Structure of the station diagnosis (header), bytes 9 to 12 3-8. . . . . . . . . . . . .
3-2 Structure of the station diagnosis (record 0, also included in record 1),
bytes 13 to 16 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Structure of the station diagnosis (record 1), bytes 17 to 28 3-9. . . . . . . . . . .
4-1 Linear and quadratic voltage/frequency characteristic 4-11. . . . . . . . . . . . . . . .
4-2 Frequency curve with release delay 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Frequency curve with external brake stopping time 4-14. . . . . . . . . . . . . . . . . . .
4-4 Voltage/frequency characteristic with and without starting boost 4-15. . . . . . .
4-5 Voltage/frequency characteristic with and without continuous boost 4-15. . . .
4-6 Frequency curve with and without rounding 4-16. . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Operating procedure following voltage recovery 5-2. . . . . . . . . . . . . . . . . . . . .
5-2 Changing the motor’s direction of rotation 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Stopping the motor by normal ramping down, renewed ramping up 5-4. . . . .
5-4 Abrupt braking of the motor, renewed ramping up 5-5. . . . . . . . . . . . . . . . . . . .
5-5 Disabling and re-enabling operation 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Rapid stop, ramp-up 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7 Disabling and re-enabling the ramp generator 5-8. . . . . . . . . . . . . . . . . . . . . . .
5-8 Interrupting and continuing ramp-up or ramp-down 5-8. . . . . . . . . . . . . . . . . . .
5-9 Disabling and re-enabling the setpoint value 5-9. . . . . . . . . . . . . . . . . . . . . . . .
5-10 Change of direction 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-1 Dimensioned drawing of the Frequency Converter B-1. . . . . . . . . . . . . . . . . . .
Tables
1-1 Topics of the manuals in the ET 200X manual package 1-4. . . . . . . . . . . . . .
1-2 Separate manuals for the ET 200X components 1-6. . . . . . . . . . . . . . . . . . . . .
2-1 Accessories required to prepare connecting cables 2-4. . . . . . . . . . . . . . . . . .
2-2 Assignment of the power connectors 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Forming procedure after a lengthy storage period 3-4. . . . . . . . . . . . . . . . . . .
3-2 Meaning of the LEDs 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Status indication by means of LEDs 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Error messages in accordance with the PROFIBUS standard 3-10. . . . . . . . .
3-5 Vendor-specific error messages 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Structure of the output data object 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Structure of the control word 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Structure of the input data object 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Structure of the status word 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Parameters of the Frequency Converter 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6 Procedure for inching mode from the programmable controller 4-17. . . . . . . . .
4-7 Procedure for inching mode using the hand-held controller 4-18. . . . . . . . . . . .
5-1 Effect of the external brake 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-1 Frequency converter –order numbers A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-2 Accessories –order numbers A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
EM 148-FC FrequencyConverter
A5E00065321-03
Product Overview
This chapter sets out the advantages of the Frequency Converter frequency
converter. It also tells you how to find the information you need in the manuals of
the ET 200X distributed I/O device.
In this chapter
Section Contents Page
1.1 What is the Frequency Converter? 1-2
1.2 Conditions for use 1-4
1.3 Guide to the ET 200X manuals 1-4
1

Product Overview
1-2 EM 148-FC Frequency Converter
A5E00065321-03
1.1 What is the Frequency Converter?
Frequency converters are used in drive engineering to control the operating speed
of motors.
Features of the Frequency Converter
Control of asynchronous three-phase induction motors of 0.1 to 1.5 kW with a
rated voltage up to 500 VAC
Output frequency up to 300 Hz for applications with a high operating speed
Ramping up and down
4-quadrant operation with linear or square-law overfluxing characteristic
Adjustment of the startup characteristics by setting the following:
–Starting boost
–Continuous (for increased acceleration)
–Smoothing (for a gentle startup, e.g. in conveyor systems)
Rapid stop through shortened reverse ramp
Pulse-width modulation with selectable pulse frequency
Connection for electromechanical motor brake (400 VAC)
Reliable holding of loads through external brake release delay
Inching mode via programmable logic controller and hand-held controller
Monitoring of the motor temperature and characteristic temperature
Visual indication of status and fault status by means of LEDs to DESINA
specification
Configuration and parameter assignment using STEP 7 (as of V5.2; Service
Pack 1) or PROFIBUS DP standard tools
DP slave diagnostics, S7 diagnostics and diagnostic interrupt possible
Integrated network filter, type A
Assignment of the energy connections to comply with DESINA specification
Internal connection through of the load supply voltage for additional frequency
converters or motor starters

Product Overview
1-3
EM 148-FC Frequency Converter
A5E00065321-03
View
The figure below shows you the connectors and indicators of the Frequency
Converter frequency converter.
LEDs
To indicate:
SF: Fault status
STAT: Status
PWR: Power supply
(3 x 400 VAC)
Subminiature D female
connector
“local”
Connector for the
hand-held controller
X1 power connector
Infeed for:
Load supply voltage
Auxiliary power to
DESINA
X2 power socket
Connector for:
Load
Brake
Thermistor
X3 power socket
Loop through for:
Load supply voltage
Auxiliary power
Earthing screw
Figure 1-1 Connectors and indicators of the EM 148-FC frequency converter

Product Overview
1-4 EM 148-FC Frequency Converter
A5E00065321-03
1.2 Conditions for use
The Frequency Converter can be used in the ET 200X distributed I/O device with
the following basic modules:
BM 141 DI 8 DC 24V, 6ES7 141-1BF11/1BF12-0XB0 as of version 1
BM 142 DO 4 DC 24V/2A, 6ES7 142 1BD21/1BD22-0XB0 as of version 1
BM 141 DI 8 DC 24V ECOFAST, 6ES7 141-1BF00/1BF01-0AB0
as of version 1
BM 141 DI 8 DC 24V ECOFAST DIAG, 6ES7 141-1BF40-0AB0
as of version 1
BM 143-DESINA FO, 6ES7 143-1BF00-0XB0 as of version 1
BM 143-DESINA RS485, 6ES7 143-1BF00-0XA0 as of version 1
BM 147-1 CPU, 6ES7 147-1AA00/1AA01-0XB0 as of version 1
BM 147-1 CPU, 6ES7 147-1AA10-0XB0 as of version 1
BM 147-2 CPU, 6ES7 147-2AA00-0XB0 as of version 1
1.3 Guide to the ET 200X manuals
Which manuals contain the information you need?
The following table is designed to help you quickly find the information you need. It
tells you which manual you need to refer to and which chapter deals with the topic
you are interested in.
Table 1-1 Topics of the manuals in the ET 200X manual package
Manual
Contents ET 200X Distributed
I/O Device
BM 147/C
PU Basic
Module
EM 300
Motor
Starter
EM 148-FC
Frequency
Converter
Chapter/
Appen-
dix
ET 200X configuration options x 2
Installation of ET 200X, motor starters
and frequency converters;
setting PROFIBUS addresses;
connecting terminating resistors
x 3
Installing the ET 200X-DESINA;
setting the PROFIBUS address x 3
BM 147/CPU addressing x 2
Electrical configuration and wiring of the
ET 200X x 4
Electrical configuration and wiring of the
ET 200X-DESINA x 4
Wiring motor starters x 2

Product Overview
1-5
EM 148-FC Frequency Converter
A5E00065321-03
Table 1-1 Topics of the manuals in the ET 200X manual package, continued
Manual
Contents Chapter/ Appen-
dix
EM 148-FC
Frequency
Converter
EM 300
Motor
Starter
BM 147/C
PU Basic
Module
ET 200X
Distributed
I/O Device
Wiring frequency converters x 2
The ET 200X with the BM 147/CPU on
the PROFIBUS network x 3
Commissioning and diagnostics of the
ET 200X x 5
Commissioning and diagnostics of the
ET 200X-DESINA x 5
Commissioning and diagnostics of the
ET 200X with the BM 147/CPU x 4
Commissioning and diagnostics of the
ET 200X with motor starters x 3
Commissioning and diagnostics of the
ET 200X with frequency converters x 3
General technical specifications of the
ET 200X (standards, certificates and
approvals, EMC, environmental
conditions, etc.)
x 6
Technical specifications of the basic
and expansion modules with DI, DO, AI
and AO
x 7
Technical specifications of the
BM 147/CPU x 5
Technical specifications of the motor
starters x 5
Functions and technical specifications
of the frequency converters x 4
BM 147/CPU cycle and response times x 6
Order numbers of the components x A
Order numbers of the motor starters x A
Order numbers of the frequency
converters x A
Dimensioned drawings of the basic
modules and
digital and analog expansion modules
x C
Dimensioned drawings of the motor
starters x B
Dimensioned drawings of the frequency
converters x B
Configuration and parameter
assignment frames for the BM 147/CPU x A
Configuration frame for motor starters x C
List of STEP 7 instructions x B

Product Overview
1-6 EM 148-FC Frequency Converter
A5E00065321-03
Table 1-1 Topics of the manuals in the ET 200X manual package, continued
Manual
Contents Chapter/ Appen-
dix
EM 148-FC
Frequency
Converter
EM 300
Motor
Starter
BM 147/C
PU Basic
Module
ET 200X
Distributed
I/O Device
Execution times of SFCs x C
Glossary x x Glossary
Table 1-2 Separate manuals for the ET 200X components
Contents Manual
Using a CP 142-2 (ASI master) CP 142-2
Manual
Order no. 6GK7142-2AH00-8BA0

2-1
EM 148-FC FrequencyConverter
A5E00065321-03
Wiring
In this chapter you find out how to wire the frequency converter and which wiring
rules you must comply with.
In this chapter
Section Contents Page
2.1 Wiring rules 2-2
2.2 Wiring the Frequency Converter 2-4
2

Wiring
2-2 EM 148-FC Frequency Converter
A5E00065321-03
2.1 Wiring rules
!Warning
This device generates dangerous electrical voltages and controls dangerous
rotating mechanical parts. Correct handling, installation, operation and
maintenance of the device are vital to ensure effective and safe operation.
For safety reasons you must connect all screw-type connectors with the ground
symbol to protective ground.
The Frequency Converter internally works with voltages of up to 800 V and
may still be live for a short period even after the power supply has been
switched off.
The Frequency Converter can in certain circumstances be connected to the
power supply via a residual current-operated circuit breaker
(see DIN VDE 0160).
Pins in the power connectors can carry dangerous voltages even when the
motor is at a standstill.
The Frequency Converter ensures internal motor overload protection that
complies with UL508C, Section 42. Alternatively, you can use an external
thermistor.
The Frequency Converter must not be used as an emergency stop mechanism
(see EN 60204, 9.2.5.4).
The EM 148-FC must not be used in systems where safety is an issue
(e.g. passenger transport).
There must be a break of at least a minute between the repeated,
simultaneous connection of the supply voltage and the motor (e.g. after the
residual current-operated circuit breaker has switched off).
The motor connector must not be removed during operation.
You must find out whether or not a residual current-operated circuit breaker
must be used depending on the type of network/relevant standards. If a
residual current-operated circuit breaker is required, the following conditions
apply:
–A residual current-operated circuit breaker of type B must be used.
–The fault current of the residual current-operated circuit breaker must be
300 mA.
–The neutral conductor of the supply system must be grounded.
–Only an EM 148-FC can be connected to a residual current-operated circuit
breaker.
Ensure that contactors in the system are interference-suppressed by RC
circuits (AC voltage contactors) or flywheeling diodes (DC voltage contactors).
Ensure that the interference-suppression elements are connected directly to
the contactor coils.
If a brake is used, ensure there is no interference (by using flywheeling diodes,
for example).
Note on CSA approval: The EM 148-FC is suitable for use in circuits that
provide a symmetrical current of up to 5000 A (eff) at a maximum voltage of
480 VAC.

Wiring
2-3
EM 148-FC Frequency Converter
A5E00065321-03
Selecting the connecting cables
The core cross-section of the connecting cables for the three outer cables must be
adapted to the prevailing environmental conditions. The core cross-section
depends on the following:
The aggregate current of all the looped-through loads
The method of cable-laying
The ambient temperature
The material type (PVC, rubber) of the motor connecting cable
Depending on the ambient temperature, the following maximum current-carrying
capacity has been calculated for PVC motor connecting cables when they are laid
in the cable duct, for example:
Cross-Sec-
tion TU= 30 5C TU= 40 5C TU= 45 5C TU= 50 5C TU= 55 5C
2.5 mm219 A 16.5 A 15.0 A 13.5 A 11.6 A
4.0 mm226 A 22.6 A 20.5 A 18.5 A 15.9 A
Wiring power connectors
Make sure you comply with the following rules when wiring:
Rules for flexible cables TU= 55 5C TU= 40 5C
The current-carrying capacity of the connectors 2.5 mm220 A 25 A
depending on the connectable core
cross-sections and the ambient temperature 4.0 mm230 A 35 A
Permissible outer diameter of the cable Green 7.0 ... 10.5 mm
depending on the type of seal Red 9.0 ... 13.0 mm
White 11.5 ... 15.5 mm
Length of core stripped 8 mm
Length of cable sheath stripped 20 mm
Unused connectors
Seal off unused connectors with screw caps (3RK1 902-0AL00). Only in this way
can the IP 65 degree of protection be complied with.

Wiring
2-4 EM 148-FC Frequency Converter
A5E00065321-03
2.2 Wiring the Frequency Converter
2.2.1 Preparing the connecting cables
Accessories
To prepare the connecting cables for the frequency converter, you will need a
crimping tool as well as the accessories listed in the table below. Alternatively, you
can obtain ready-prepared motor connecting cables and power connecting cables
(see Appendix A). The assignment of the power connecting cables does not
comply, however, with the DESINA specification.
Table 2-1 Accessories required to prepare connecting cables
Requirements
For X1: Infeed for the
load supply voltage For X2: Connection of the load to the brake and thermistor For X3: Loop through of the load supply
voltage
A flexible 4- or 7-core1)
Cu cable 2.5 mm2
or 4.0 mm2(3 or 6
conductors + protective
ground)
A flexible 8-core shielded Cu cable 2.5 / 0.75 mm2
(3 conductors + protective ground +
2x2 conductors)
PE
7
Sheath
Insulation
Overall
shield
Shielding Filling
material
Pair
shield
A flexible 4- or 7-core1)
Cu cable 2.5 mm2
or 4.0 mm2(3 or 6
conductors + protective
ground)
A connector set
2.5 mm2: 3RK1
902-0CA00
4.0 mm2: 3RK1
902-0CB00
A shielded connector set
2.5 /0.75 mm2:
6ES7 194-1AB01-0XA0
A connector set
2.5 mm2: 3RK1
902-0CC00
4.0 mm2: 3RK1
902-0CD00
1) 7-core cables are only required if all the power supplies are looped through in accordance with the DESINA
specification.