For the purposes of compliance with the EU Machinery Directive 2006/42/EC.
This guide covers the basic information that is required to install the drive, in applications where a drive malfunction
does not result in a mechanical hazard. When the drive is used in a safety related application, i.e. where a
malfunction might result in a hazard, it is essential to refer to this guide and the Control User Guide. The Control User Guide is available for download from:
http://www.emersonindustrial.com/en-EN/controltechniques/downloads/userguidesandsoftware/Pages/downloads.aspx
or
www.emersonindustrial.com/en-EN/leroy-somer-motors-drives/downloads/Pages/manuals.aspx
The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect
installation or adjustment of the optional operating parameters of the equipment or from mismatching the variable
speed drive with the motor.
The contents of this guide are believed to be correct at the time of printing. In the interests of a commitment to a
policy of continuous development and improvement, the manufacturer reserves the right to change the specification
of the product or its performance, or the contents of the guide, without notice.
All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means, electrical
or mechanical including photocopying, recording or by an information storage or retrieval system, without permission
in writing from the publisher.
Drive firmware version
This product is supplied with the latest firmware version. If this drive is to be connected to an existing system or
machine, all drive firmware versions should be verified to confirm the same functionality as drives of the same model
already present. This may also apply to drives returned from an Emerson Industrial Automation Service Centre or
Repair Centre. If there is any doubt please contact the supplier of the product.
The firmware version of the drive can be checked by looking at Pr 11.029
Environmental statement
Emerson Industrial Automation is committed to minimising the environmental impacts of its manufacturing operations
and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS)
which is certified to the International Standard ISO 14001. Further information on the EMS, our Environmental Policy
and other relevant information is available on request, or can be found at:
http://www.emersonindustrial.com/en-EN/controltechniques/aboutus/environment/Pages/environment.aspx.
The electronic variable-speed drives manufactured by Emerson Industrial Automation have the potential to save
energy and (through increased machine/process efficiency) reduce raw material consumption and scrap throughout
their long working lifetime. In typical applications, these positive environmental effects far outweigh the negative
impacts of product manufacture and end-of-life disposal.
Nevertheless, when the products eventually reach the end of their useful life, they must not be discarded but should
instead be recycled by a specialist recycler of electronic equipment. Recyclers will find the products easy to
dismantle into their major component parts for efficient recycling. Many parts snap together and can be separated
without the use of tools, while other parts are secured with conventional fasteners. Virtually all parts of the product
are suitable for recycling.
Product packaging is of good quality and can be re-used. Large products are packed in wooden crates, while smaller
products come in strong cardboard cartons which themselves have a high recycled fibre content. If not re-used, these
containers can be recycled. Polythene, used on the protective film and bags for wrapping product, can be recycled
in the same way. Emerson Industrial Automation’s packaging strategy prefers easily-recyclable materials of low
environmental impact, and regular reviews identify opportunities for improvement.
When preparing to recycle or dispose of any product or packaging, please observe local legislation and best practice.
6.9External Class 2 supply .......................................................................................... 92
6.10Requirement for Transient Surge Suppression ......................................................92
6.11Group Installation and Modular Drive Systems ......................................................92
Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
EU Declaration of Conformity
G Williams
Vice President, Technology
Date: 17th March 2016
Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
This declaration is issued under the sole responsibility of the manufacturer. The object of the declaration is in
conformity with the relevant Union harmonization legislation. The declaration applies to the variable speed drive
products shown below:
The model number may be followed by additional characters that do not affect the ratings.
The variable speed drive products listed above have been designed and manufactured in accordance with the
following European harmonized standards:
EN 61800-5-1:2007
EN 61800-3: 2004+A1:2012
EN 61000-6-2:2005
EN 61000-6-4: 2007+A1:2011
EN 61000-3-2:2014
EN 61000-3-3:2013
EN 61000-3-2:2014 Applicable where input current < 16 A. No limits apply for professional equipment where input
power ≥1 kW.
These products comply with the Restriction of Hazardous Substances Directive (2011/65/EU), the Low Voltage
Directive (2014/35/EU) and the Electromagnetic Compatibility Directive (2014/30/EU).
A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier +
Inverter (external choke), T = 12P Rectifier + Inverter (external choke)
Adjustable speed electrical power drive systems - Part 5-1: Safety requirements Electrical, thermal and energy
Adjustable speed electrical power drive systems - Part 3: EMC requirements and
specific test methods
Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity for
industrial environments
Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission
standard for industrial environments
Electromagnetic compatibility (EMC) - Part 3-2: Limits for harmonic current
emissions (equipment input current ≤16 A per phase)
Electromagnetic compatibility (EMC) - Part 3-3: Limitation of voltage changes,
voltage fluctuations and flicker in public, low voltage supply systems, for
equipment with rated current ≤16 A per phase and not subject to conditional
connection
Moteurs Leroy-Somer
Usine des Agriers
Boulevard Marcellin Leroy
CS10015
16915 Angoulême Cedex 9
France
These electronic drive products are intended to be used with appropriate motors, controllers, electrical
protection components and other equipment to form complete end products or systems. Compliance with
safety and EMC regulations depends upon installing and configuring drives correctly, including using the
specified input filters.
The drives must be installed only by professional installers who are familiar with requirements for safety
and EMC. Refer to the Product Documentation. An EMC data sheet is available giving detailed information.
The assembler is responsible for ensuring that the end product or system complies with all the relevant
laws in the country where it is to be used.
Unidrive M/HS Frame 11E Power Installation Guide5
Issue Number: 2
EU Declaration of Conformit y
(including 2006 Machinery Directive)
Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
This declaration is issued under the sole responsibility of the manufacturer. The object of the declaration is in
conformity with the relevant Union harmonization legislation. The declaration applies to the variable speed drive
products shown below:
The model number may be followed by additional characters that do not affect the ratings.
This declaration relates to these products when used as a safety component of a machine. Only the Safe
Torque Off function may be used for a safety function of a machine. None of the other functions of the drive
may be used to carry out a safety function.
These products fulfil all the relevant provisions of the Machinery Directive 2006/42/EC and the Electromagnetic
Compatibility Directive (2014/30/EU).
EC type examination has been carried out by the following notified body:
TUV Rheinland Industrie Service GmbH
Am Grauen Stein
D-51105 Köln
Germany
EC type-examination certificate numbers:
01/205/5270.01/14 dated 2014-11-11
01/205/5387.01/15 dated 2015-01-29
01/205/5383.02/15 dated 2015-04-21
Notified body identification number: 0035
The harmonized standards used are shown below:
EN 61800-5-1:2007
EN 61800-5-2:2007
EN ISO 13849-1:2008
EN ISO 13849-2:2008Safety of machinery, Safety-related parts of control systems. Validation
A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier +
Inverter (external choke), T = 12P Rectifier + Inverter (external choke)
Adjustable speed electrical power drive systems - Part 5-1: Safety requirements
- Electrical, thermal and energy
Adjustable speed electrical power drive systems - Part 5-2: Safety requirements
- Functional
Safety of Machinery, Safety-related parts of control systems, General principles
for design
Adjustable speed electrical power drive systems - Part 3: EMC requirements
and specific test methods
Safety of machinery, Functional safety of safety related electrical, electronic
and programmable electronic control systems
Moteurs Leroy-Somer
Usine des Agriers
Boulevard Marcellin Leroy
CS10015
16915 Angoulême Cedex 9
France
6Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Person authorised to complete the technical file:
G. Williams
Vice President, Technology
Date: 17th March 2016
Place: Newtown, Powys, UK
P Knight
Conformity Engineer
Newtown, Powys, UK
IMPORTANT NOTICE
These electronic drive products are intended to be used with appropriate motors, controllers, electrical
protection components and other equipment to form complete end products or systems. Compliance with
safety and EMC regulations depends upon installing and configuring drives correctly, including using the
specified input filters.
The drives must be installed only by professional installers who are familiar with requirements for safety
and EMC. Refer to the Product Documentation. An EMC data sheet is available giving detailed information.
The assembler is responsible for ensuring that the end product or system complies with all the relevant
laws in the country where it is to be used.
Unidrive M/HS Frame 11E Power Installation Guide7
Issue Number: 2
1Safety information
WARNING
CAUT ION
NOTE
1.1Warnings, Cautions and Notes
A Warning contains information which is essential for avoiding a safety hazard.
A Caution contains information which is necessary for avoiding a risk of damage to the
product or other equipment.
A Note contains information, which helps to ensure correct operation of the product.
1.2Electrical safety - general warning
The voltages used in the drive can cause severe electrical shock and/or burns, and could be lethal.
Extreme care is necessary at all times when working with or adjacent to the drive. Specific warnings
are given at the relevant places in this guide.
1.3System design and safety of personnel
The drive is intended as a component for professional incorporation into complete equipment or a
system. If installed incorrectly, the drive may present a safety hazard.
The drive uses high voltages and currents, carries a high level of stored electrical energy, and is used
to control equipment which can cause injury.
Close attention is required to the electrical installation and the system design to avoid hazards either
in normal operation or in the event of equipment malfunction. System design, installation,
commissioning/start-up and maintenance must be carried out by personnel who have the necessary
training and experience. They must read this safety information and this Power Installation Guide
carefully.
The STOP and Safe Torque Off functions of the drive do not isolate dangerous voltages from the
output of the drive or from any external option unit. The supply must be disconnected by an approved
electrical isolation device before gaining access to the electrical connections.
With the sole exception of the Safe Torque Off function, none of the drive functions must be
used to ensure safety of personnel, i.e. they must not be used for safety-related functions.
Careful consideration must be given to the functions of the drive which might result in a hazard,
either through their intended behavior or through incorrect operation due to a fault. In any application
where a malfunction of the drive or its control system could lead to or allow damage, loss or injury, a
risk analysis must be carried out, and where necessary, further measures taken to reduce the risk for example, an over-speed protection device in case of failure of the speed control, or a fail-safe
mechanical brake in case of loss of motor braking.
The Safe Torque Off function may be used in a safety-related application. The system designer is
responsible for ensuring that the complete system is safe and designed correctly according to the
relevant safety standards.
8Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
1.4Environmental limits
Instructions in this guide regarding transport, storage, installation and use of the drive must be
complied with, including the specified environmental limits. Drives must not be subjected to
excessive physical force.
1.5Access
Drive access must be restricted to authorized personnel only. Safety regulations which apply at the
place of use must be complied with.
Safety information
1.6Fire protection
The drive enclosure is not classified as a fire enclosure. A separate fire enclosure must be provided.
For further information, refer to the section 3.2.5 Fire protection on page 18.
1.7Compliance with regulations
The installer is responsible for complying with all relevant regulations, such as national wiring
regulations, accident prevention regulations and electromagnetic compatibility (EMC) regulations.
Particular attention must be given to the cross-sectional areas of conductors, the selection of fuses
or other protection, and protective ground (earth) connections.
This guide contains instruction for achieving compliance with specific EMC standards.
Within the European Union, all machinery in which this product is used must comply with the
following directives:
Safety of Machinery 2006/42/EC
Electromagnetic Compatibility (EMC) Directive 2014/30/EU
1.8Motor
Ensure the motor is installed in accordance with the manufacturer’s recommendations. Ensure the
motor shaft is not exposed.
Standard squirrel cage induction motors are designed for single speed operation. If it is intended to
use the capability of the drive to run a motor at speeds above its designed maximum, it is strongly
recommended that the manufacturer is consulted first.
Low speeds may cause the motor to overheat because the cooling fan becomes less effective. The
motor should be installed with a protection thermistor. If necessary, an electric forced vent fan should
be used.
The values of the motor parameters set in the drive affect the protection of the motor. The default
values in the drive should not be relied upon.
It is essential that the correct value is entered in Pr 00.046 motor rated current. This affects the
thermal protection of the motor.
Product informationMechanical installationElectrical installationTechnical dataUL listing information
1.9Mechanical brake control
The brake control functions are provided to allow well co-ordinated operation of an external brake
with the drive. While both hardware and software are designed to high standards of quality and
robustness, they are not intended for use as safety functions, i.e. where a fault or failure would result
in a risk of injury. In any application where the incorrect operation of the brake release mechanism
could result in injury, independent protection devices of proven integrity must also be incorporated.
1.10Adjusting parameters
Some parameters have a profound effect on the operation of the drive. They must not be altered
without careful consideration of the impact on the controlled system. Measures must be taken to
prevent unwanted changes due to error or tampering.
Unidrive M/HS Frame 11E Power Installation Guide9
Issue Number: 2
1.11Electrical installation
1.11.1Electric shock risk
The voltages present in the following locations can cause severe electric shock and may be lethal:
•AC supply cables and connections
•Output cables and connections
•Many internal parts of the drive, and external option units
Unless otherwise indicated, control terminals are single insulated and must not be touched.
1.11.2Stored charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the AC supply
has been disconnected. If the drive has been energized, the AC supply must be isolated at least ten
minutes before work may continue.
10Unidrive M/HS Frame 11E Power Installation Guide
410 %)- 400 V (380 - 480 ±
510 %)- 575 V (500 - 575 ±
610 %)- 690 V (500 - 690 ±
Power
Format
M600 -11 4 04640E
Configuration
1
A -AC in AC out (with internal choke)
D - DC in AC out (Inverter)
C - AC in DC out (Rectifier)
E - AC inAC out (without internal choke)
T - AC inAC out (12P rectifier plus inverter)
Configuration:
1 - Standard
U - No Control
M - Master
F - Follower
0 - Supplied separately
1 - English
2 - French
3 - Italian
4 - German
5 - Spanish
N = No brake
2.1Introduction
This guide provides the information necessary to install the following drive models:
Unidrive Mxxx frame 11E
Unidrive HSxx frame 11E
This guide focuses on the drive power section, for example: electrical installation of the supply /
motor cables and mechanical installation of the drive.
For information about the drive control section, for example: parameter set up information, control
and encoder connections please refer to the Control User Guide.
2.2Model number
The model number for the Unidrive M/HS product range is formed as illustrated below:
Figure 2-1 Model number
Safety information
Product information
Mechanical installationElectrical installationTechnical dataUL listing information
Unidrive M/HS Frame 11E Power Installation Guide11
Issue Number: 2
2.3Nameplate description
Normal/Heavy
Duty power rating
Approvals
Input phases & input current
Output phases & Heavy
Duty/Normal Duty rating
Serial number
Input voltage
Output voltage
Customer and date code
250/280kWSTDN39
464/507A
502A
M600-114 04640 E10
Model
Frame
Voltage
Heavy Duty
current rating
Power
format
Control fitted
Fan power
supply fitted
Refer to
User Guide
Model
Approvals
Input phases & input current
Output phases & Heavy
Duty/Normal Duty rating
Serial number
Input voltage
Output voltage
Customer and date code
M600-114 04640 E10
250/280kW
STDN39
Input frequencyInput frequency
502A
464/507A
Key to approvals
CE approvalEurope
C Tick approvalAustralia
UL / cUL approval USA & Canada
RoHS compliantEurope
Functional safety USA & Canada
Eurasian
conformity
Eurasia
R
Large label
NOTE
Figure 2-2 Typical drive rating labels
Refer to Figure 2-1 Model number on page 11 for further information relating to the labels.
Date code format
The date code is split into two sections: a letter followed by a number. The letter indicates
the year, and the number indicates the week number (within the year) in which the drive
was built. The letters go in alphabetical order, starting with A in 1991 (B in 1992, C in
1993 etc).
Example:
A date code of Y28 would correspond to week 28 of year 2015.
12Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
2.4Ratings
WARNING
NOTE
NOTE
Fuses
The AC supply to the drive must be installed with suitable protection against overload and
short-circuits. The following section shows recommended fuse ratings. Failure to observe
this requirement will cause risk of fire.
Nominal cables sizes below are based on the cable installation method C (ref: IEC603645-52:2001) unless otherwise specified, and are provided as a guide only. Ensure cables
used suit local wiring regulations.
Table 2-1 400 V drive ratings, cable sizes and fuse ratings @ 2 kHz
Max.
cont.
input
current
Model
11403770 449500
11404170 4925006002x150 2x185
11404640 5395506002x150 2x185
3ph Nom
AAA
Fuse
IECUL
Nom
Class
600
gR
Class
HSJ
Table 2-2 575 V drive ratings, cable sizes and fuse ratings
Max.
cont.
input
current
Model
3ph Nom
AA A
11502000 265400
11502540 3104004002x120 2x120
11502850 3384004002x120 2x120
Fuse
IECUL
Nom
Class
400
gR
Class
HSJ
Nominal cable size
EuropeanUSA
Input Output Input Output
AWG /
kcmil
2x300
kcmil
2x300
kcmil
2x300
kcmil
AWG/
kcmil
2x4/0
AWG
2x4/0
AWG
2x4/0
AWG
AWG/
kcmil
2x300
kcmil
2x350
kcmil
2x350
kcmil
AWG /
kcmil
350
kcmil
2x4/0
AWG
2x4/0
AWG
mm2mm
2x150 2x150
Input Output Input Output
mm2mm
2x120 185
2
Nominal cable size
EuropeanUSA
2
Normal DutyHeavy Dut y
Max.
Nom
cont.
power
output
current
@
400 V
AkWhpAkWhp
437225350377185300
487250400417200350
507280450464250400
@ 2 kHz
Normal DutyHeavy Duty
Max.
Nom
cont.
power
output
current
@
575 V
AkWhpA kWhp
248185250200150200
288225300254185250
315250350285225300
Motor
power
@
460 V
Motor
power
@
575 V
Max.
cont.
output
current
Max.
cont.
output
current
Nom
power
@
400 V
Nom
power
@
575 V
Motor
power
@
460 V
Motor
power
@
575 V
Safety information
Product information
Mechanical installationElectrical installationTechnical dataUL listing information
Refer to Chapter 5.1 Drive technical data on page 73 for peak current data.
Unidrive M/HS Frame 11E Power Installation Guide13
Issue Number: 2
Table 2-3 690 V drive ratings, cable sizes and fuse ratings
Either 10 mm2 or two conductors of the same cross-sectional area as the input
phase conductor
2
The same cross-sectional area as the input phase conductor
2
16 mm
2
Half of the cross-sectional area of the input phase conductor
Typical short term overload limits
The maximum percentage overload limit changes depending on the selected motor. Variations in
motor rated current, motor power factor and motor leakage inductance all result in changes in the
maximum possible overload. Typical values are shown in the table below:
Table 2-5 Typical overload limits
Operating modeRFC from cold RFC from 100 %
Normal Duty overload with motor rated
current = drive rated current
Heavy Duty overload with motor rated
current = drive rated current
Open loop
from cold
110 % for 165 s 110 % for 9 s110 % for 165 s 110 % for 9 s
175 % for 42 s175 % for 5 s150 % for 60 s150 % for 7 s
Open loop
from 100 %
Generally the drive rated current is higher than the matching motor rated current allowing a higher
level of overload than the default setting.
The time allowed in the overload region is proportionally reduced at very low output frequency on
some drive ratings.
The maximum overload level which can be attained is independent of the speed.
@
Output current
The continuous output current ratings given on the rating label are for maximum 40 °C (104 °F), 1000
m altitude and 2 kHz switching frequency. Derating is required for higher switching frequencies,
ambient temperatures >40 °C (104 °F) and higher altitude. For further information, refer to Chapter
5.1 Drive technical data on page 73.
Input current
The input current is affected by the supply voltage and impedance. The input current given on the
rating label is the typical input current and is stated for a balanced supply.
14Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
2.5Drive features
18
2
1
2
3
5
4
Figure 2-3 Features of the drive
Safety information
Product information
Mechanical installationElectrical installationTechnical dataUL listing information
Key
1. AC supply connections* 2. Ground connections 3. Braking terminal4. DC bus +5. Motor connections
* Common AC supply connections are internally linked on 6 pulse drives
Unidrive M/HS Frame 11E Power Installation Guide15
Issue Number: 2
2.5.1Items supplied with the drive
51 52
The drive is supplied with a copy of the Power Installation Guide and a copy of the Control Getting
Started Guide, a safety information booklet, the Certificate of Quality and an accessory kit box
including the items shown in Table 2-6.
Table 2-6 Parts supplied with the drive
Description
Control connectors
(1 x 1 to 11)
(1 x 21 to 31)
Control connectors
(1 x 1 to 13)
Relay connector
24 V power supply
connector
Grounding bracket
x 1* x 1*
x 1**
x 1
x 1
x 1
Surface mounting
brackets
x 2 x 1
* Supplied with Unidrive M600 / M700 / M701 and HS70 / HS71 only.
** Supplied with Unidrive M702 and HS72 only.
16Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3Mechanical installation
WARNING
WARNING
WARNING
WARNING
3.1Safety information
Follow the instructions
The mechanical and electrical installation instructions must be adhered to. Any questions
or doubt should be referred to the supplier of the equipment. It is the responsibility of the
owner or user to ensure that the installation of the drive and any external option unit, and
the way in which they are operated and maintained, comply with the requirements of the
Health and Safety at Work Act in the United Kingdom or applicable legislation and
regulations and codes of practice in the country in which the equipment is used.
Stored charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the
AC supply has been disconnected. If the drive has been energized, the AC supply must
be isolated at least ten minutes before work may continue.
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual
fault conditions, it is possible that the capacitors may fail to discharge, or be prevented
from being discharged by a voltage applied to the output terminals. If the drive has failed
in a manner that causes the display to go blank immediately, it is possible the capacitors
will not be discharged. In this case, consult Emerson Industrial Automation or their
authorized distributor.
Competence of the installer
The drive must be installed by professional assemblers who are familiar with the
requirements for safety and EMC. The assembler is responsible for ensuring that the end
product or system complies with all the relevant laws in the country where it is to be used.
Enclosure
The drive is intended to be mounted in an enclosure which prevents access except by
trained and authorized personnel, and which prevents the ingress of contamination. It is
designed for use in an environment classified as pollution degree 2 in accordance with IEC
60664-1. This means that only dry, non-conducting contamination is acceptable.
Safety informationProduct information
Mechanical installation
Electrical installationTechnical dataUL listing information
Unidrive M/HS Frame 11E Power Installation Guide17
Issue Number: 2
3.2 Planning the installation
NOTE
The following considerations must be made when planning the installation:
3.2.1Access
Access must be restricted to authorized personnel only. Safety regulations which apply at the place
of use must be complied with.
The IP (Ingress Protection) rating of the drive is installation dependent. For further information, refer
to section 3.9 Enclosing standard drive for high environmental protection on page 31.
3.2.2Environmental protection
The drive must be protected from:
•Moisture, including dripping water or spraying water and condensation. An anti-condensation
heater may be required, which must be switched off when the drive is running.
•Contamination with electrically conductive material
•Contamination with any form of dust which may restrict the fan, or impair airflow over various
components
•Temperature beyond the specified operating and storage ranges
•Corrosive gasses
During installation it is recommended that the vents on the drive are covered to prevent
debris (e.g. wire off-cuts) from entering the drive.
3.2.3Cooling
The heat produced by the drive must be removed without its specified operating temperature being
exceeded. Note that a sealed enclosure gives much reduced cooling compared with a ventilated one,
and may need to be larger and/or use internal air circulating fans.
For further information, refer to section 3.6 Enclosure for standard drives on page 26.
3.2.4Electrical safety
The installation must be safe under normal and fault conditions. Electrical installation instructions are
given in Chapter 4 Electrical installation on page 41.
3.2.5Fire protection
The drive enclosure is not classified as a fire enclosure. A separate fire enclosure must be provided.
For installation in the USA, a NEMA 12 enclosure is suitable.
For installation outside the USA, the following (based on IEC 62109-1, standard for PV inverters) is
recommended.
Enclosure can be metal and/or polymeric, polymer must meet requirements which can be
summarized for larger enclosures as using materials meeting at least UL 94 class 5VB at the point of
minimum thickness.
Air filter assemblies to be at least class V-2.
The location and size of the bottom shall cover the area shown in Figure 3-1. Any part of the side
which is within the area traced out by the 5° angle is also considered to be part of the bottom of the
fire enclosure.
18Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Figure 3-1 Fire enclosure bottom layout
Drive
5
o
5
o
Notless
than2X
Baffleplates(maybeaboveorbelowbottomofenclosure)
X
Bottomoffire
enclosure
Not less
than 2
times ‘X’
Baffle plates (may be above or
below bottom of enclosure)
Bottom of fire enclosure
X
The bottom, including the part of the side considered to be part of the bottom, must be designed to
prevent escape of burning material - either by having no openings or by having a baffle construction.
This means that openings for cables etc. must be sealed with materials meeting the 5VB
requirement, or else have a baffle above. See Figure 3-2 for acceptable baffle construction. This
does not apply for mounting in an enclosed electrical operating area (restricted access) with concrete
floor.
Figure 3-2 Fire enclosure baffle construction
Safety informationProduct information
Mechanical installation
Electrical installationTechnical dataUL listing information
3.2.6Electromagnetic compatibility
Variable speed drives are powerful electronic circuits which can cause electromagnetic interference if
not installed correctly with careful attention to the layout of the wiring.
Some simple routine precautions can prevent disturbance to typical industrial control equipment.
If it is necessary to meet strict emission limits, or if it is known that electromagnetically sensitive
equipment is located nearby, then full precautions must be observed. In-built into the drive, is an
internal EMC filter, which reduces emissions under certain conditions. If these conditions are
exceeded, then the use of an external EMC filter may be required at the drive inputs, which must be
located very close to the drives. Space must be made available for the filters and allowance made for
carefully segregated wiring. Both levels of precautions are covered in section 4.13 EMC (Electromagnetic compatibility) on page 58.
3.2.7Hazardous areas
The drive must not be located in a classified hazardous area unless it is installed in an approved
enclosure and the installation is certified.
Unidrive M/HS Frame 11E Power Installation Guide19
Issue Number: 2
3.3 Terminal cover removal
WARNING
WARNING
Input
Control
Output
Isolation device
The AC supply must be disconnected from the drive using an approved isolation device
before any cover is removed from the drive or before any servicing work is performed.
Stored charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the
AC supply has been disconnected. If the drive has been energized, the AC supply must
be isolated at least ten minutes before work may continue.
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual
fault conditions, it is possible that the capacitors may fail to discharge, or be prevented
from being discharged by a voltage applied to the output terminals. If the drive has failed
in a manner that causes the display to go blank immediately, it is possible the capacitors
will not be discharged. In this case, consult Emerson Industrial Automation or their
authorized distributor.
3.3.1 Removing the terminal covers
Unidrive M / Unidrive HS size 11E drives are installed with three terminal covers: Control, input and
output terminal covers.
Figure 3-3 Location and identification of terminal covers
20Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Figure 3-4 Removing the terminal covers
Pozi Pz2
B
To remove a terminal cover, undo the screw and lift the terminal cover off as shown.
When replacing the terminal covers the screws should be tightened with a maximum torque of 1 N m
(0.7 lb ft).
3.3.2 Removing the finger-guard and DC terminal cover break-outs
Figure 3-5 Removing the finger-guard break-outs
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Place the finger-guard on a flat solid surface and hit relevant break-outs with hammer as shown (1).
Pliers can be used to remove the breakouts, grasp the relevant break-out with pliers and twist it as
shown (3). Continue until all the required break-outs have been removed (2). Remove any flash /
sharp edges once the break-outs have been removed.
Unidrive M/HS Frame 11E Power Installation Guide21
Issue Number: 2
The grommets must be installed to ensure ingress protection to IP20 and to avoid the risk
WARNING
WARNING
of fire in the event of a major internal failure.
A grommet kit is available for size 11 power terminal finger guards.
Table 3-1 Grommet kit for power terminal finger guards
Drive size
Quantity of
kits
Part numberPicture
Size 11 - Kit of 8 x double
entry grommets
23470-0107
3.4Dimensions and mounting methods
The Unidrive M/HS Frame 11E can be either surface or through-panel mounted using the appropriate
brackets. Surface mounting is where the drive is simply secured to the enclosure wall/backplate.
Through-panel mounting is where the drive is secured with the heatsink protruding through the
enclosure panel to the external environment. This has the effect of reducing the temperature within
the enclosure.
The following drawings show the dimensions of the drive and mounting holes for each method to
allow a back plate to be prepared.
If the drive has been used at high load levels for a period of time, the heatsink can reach
temperatures in excess of 70 °C (158 °F). Human contact with the heatsink should be
prevented.
22Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.4.1Drive dimensions
W
D
A
H
Figure 3-6 Drive dimensions
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Size
HWDA
mminmminmminmmin
11E119046.931012.231212.28124248.9
Unidrive M/HS Frame 11E Power Installation Guide23
Issue Number: 2
3.4.2Surface mounting
285 mm (11.22 in)
310 mm (12.21 in)
1242 mm (48.90 in)
313 mm (12.32 in)
1189 mm (46.81 in)
259 mm (10.19 in)
26 mm
(1.02 in)
Æ 9mm (0.35 in)
x 4 holes
12 mm
(0.47 in)
1222 mm (48.11 in)
Figure 3-7 Surface mounting dimensions
24Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.4.3Through-panel mounting
190 mm (7.48 in)
123 mm
(4.84 in)
1189 mm (46.81 in)
259 mm (10.19 in)
287±1 mm (11.3±0.04 in)
327 mm (12.87 in)
Æ 9 mm (0.35 in)
x 4 holes
1231 mm (48.31 in)
1098 mm (43.22 in)
953 mm (37.51 in)
712 mm (28.03 in)
566 mm (22.28 in)
386 mm (15.19 in)
211 mm (8.30 in)
31 mm
(1.22 in)
285 mm (11.22 in)
310 mm (12.21 in)
340 mm (13.38 in)
1249 mm (49.17 in)
Æ 5.5 mm
(0.21 in)
x 12 holes
1170 mm (46.06 in)
1118 mm (44.01 in)
973 mm (38.30 in)
732 mm (28.81 in)
586 mm (23.07 in)
406 mm (15.98 in)
231 mm (9.09 in)
The Through-panel mounting kit is not supplied with the drive and can be purchased separately,
using the part number shown below:
Table 3-2 Through panel mounting kit
Part numberDescription
3470-0126Size 11E through panel mounting kit
Figure 3-8 Through-panel mounting dimensions
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3.5Mounting brackets
Table 3-3 Mounting brackets
Frame size
Surface mounting kit
(supplied with drive)
Qty
x 2*x 12
Hole size: 9 mm
11E
* Surface mounting brackets are also used when through-panel mounting
Unidrive M/HS Frame 11E Power Installation Guide25
Issue Number: 2
(0.35 in)
Hole size: 9 mm
(0.35 in)
x 1x 1
Optional through-panel
mounting kit
Hole size: 5.5 mm (0.22 in)
Qty
3.6Enclosure for standard drives
Ensure minimum clearances
are maintained for the drive
and external EMC filter. Forced
or convection air-flow must not
be restricted by any object or
cabling
Note
For EMC compliance:
1) When using an external EMC
filter, one filter is required for
each drive
2) Power cabling must be at
least 100mm (4in) from the
drive in all directions
A
B
= 60 mm (2.37 in)
= 45 mm (1.77 in)
BB
A
Optional braking
resistor and overload
AC supply
contactor and
fuses or MCB
Locateasrequired
Locate as
required
Locate optional braking
resistor external to
cubicle (preferably near
to or on top of the cubicle).
Locate the overload
protection device as required
Enclosure
³100mm
(4in)
³100mm
(4in)
Please observe the clearances in the diagram below taking into account any appropriate notes for
other devices / auxiliary equipment when planning the installation.
Figure 3-9 Enclosure layout
26Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.6.1Enclosure sizing
A
e
P
kT
intText
–()
-----------------------------------=
NOTE
1. Add the dissipation figures from section 5.1.3 Power dissipation on page 76 for each drive that is
to be installed in the enclosure.
2. If an external EMC filter is to be used with each drive, add the dissipation figures from section
5.2.2 EMC filter ratings on page 89 for each external EMC filter that is to be installed in the
enclosure.
3. If the braking resistor is to be mounted inside the enclosure, add the average power figures from
for each braking resistor that is to be installed in the enclosure.
4. Calculate the total heat dissipation (in Watts) of any other equipment to be installed in the
enclosure.
5. Add the heat dissipation figures obtained above. This gives a figure in Watts for the total heat that
will be dissipated inside the enclosure.
Calculating the size of a sealed enclosure
The enclosure transfers internally generated heat into the surrounding air by natural convection (or
external forced air flow); the greater the surface area of the enclosure walls, the better is the
dissipation capability. Only the surfaces of the enclosure that are unobstructed (not in contact with a
wall or floor) can dissipate heat.
Calculate the minimum required unobstructed surface area A
Where:
Unobstructed surface area in m2 (1 m2 = 10.9 ft2)
A
e
T
Maximum expected temperature in
ext
Maximum permissible temperature in oC inside the enclosure
T
int
o
C outside the enclosure
PPower in Watts dissipated by all heat sources in the enclosure
kHeat transmission coefficient of the enclosure material in W/m
Example
To calculate the size of an enclosure for the following:
•Two drives operating at the Normal Duty rating
•External EMC filter for each drive
•Braking resistors are to be mounted outside the enclosure
•Maximum ambient temperature inside the enclosure: 40 °C
•Maximum ambient temperature outside the enclosure: 30 °C
For example, if the power dissipation from each drive is 187 W and the power dissipation from each
external EMC filter is 9.2 W.
Total dissipation: 2 x (187 + 9.2) =392.4 W
for the enclosure from:
e
2/o
C
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Power dissipation for the drives and the external EMC filters can be obtained from
Chapter 5 Technical data on page 73.
The enclosure is to be made from painted 2 mm (0.079 in) sheet steel having a heat
transmission coefficient of 5.5 W/m
2/o
C. Only the top, front, and two sides of the
enclosure are free to dissipate heat.
The value of 5.5 W/m
2
/ºC can generally be used with a sheet steel enclosure (exact
values can be obtained by the supplier of the material). If in any doubt, allow for a greater
margin in the temperature rise.
Unidrive M/HS Frame 11E Power Installation Guide27
Issue Number: 2
Figure 3-10 Enclosure having front, sides and top panels free to dissipate heat
The minimum required heat conducting area is then:
2
= 7.135 m
(77.8 ft2) (1 m2 = 10.9 ft2)
Estimate two of the enclosure dimensions - the height (H) and depth (D), for instance. Calculate the
width (W) from:
Inserting H = 2m and D = 0.6 m, obtain the minimum width:
=1.821 m (71.7 in)
If the enclosure is too large for the space available, it can be made smaller only by attending to one
or all of the following:
•Using a lower PWM switching frequency to reduce the dissipation in the drives
•Reducing the ambient temperature outside the enclosure, and/or applying forced-air cooling to
the outside of the enclosure
•Reducing the number of drives in the enclosure
•Removing other heat-generating equipment
Calculating the air-flow in a ventilated enclosure
The dimensions of the enclosure are required only for accommodating the equipment. The
equipment is cooled by the forced air flow.
Calculate the minimum required volume of ventilating air from:
28Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Where:
P
o
P
l
-------
V
31.3×323.7×
40 30–
---------------------------------------=
3
VAir-flow in m
T
Maximum expected temperature in °C outside the enclosure
ext
T
Maximum permissible temperature in °C inside the enclosure
int
per hour (1 m3/hr = 0.59 ft3/min)
PPower in Watts dissipated by all heat sources in the enclosure
kRatio of
Where:
is the air pressure at sea level
P
0
P
is the air pressure at the installation
I
Typically use a factor of 1.2 to 1.3, to allow also for pressure-drops in dirty air-filters.
Example
To calculate the size of an enclosure for the following:
•Three drives operating at the Normal Duty rating
•External EMC filter for each drive
•Braking resistors are to be mounted outside the enclosure
•Maximum ambient temperature inside the enclosure: 40 °C
•Maximum ambient temperature outside the enclosure: 30 °C
For example, dissipation of each drive: 101 W and dissipation of each external EMC filter: 6.9 W
(max).
Total dissipation: 3 x (101 + 6.9) = 323.7 W
Insert the following values:
T
40 °C
int
30 °C
T
ext
k 1.3
P 323.7 W
Then:
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= 126.2 m
Unidrive M/HS Frame 11E Power Installation Guide29
Issue Number: 2
3
/hr (74.5 ft3 /min) (1 m3/ hr = 0.59 ft3/min)
3.7Enclosure design and drive ambient temperature
Drive derating is required for operation in high ambient temperatures
Totally enclosing or through panel mounting the drive in either a sealed cabinet (no airflow) or in a
well ventilated cabinet makes a significant difference on drive cooling.
The chosen method affects the ambient temperature value (T
) which should be used for any
rate
necessary derating to ensure sufficient cooling for the whole of the drive.
The ambient temperature for the four different combinations is defined below:
1. Totally enclosed with no air flow (<2 m/s) over the drive
= T
T
rate
+ 5° C
int
2. Totally enclosed with air flow (>2 m/s) over the drive
T
= T
rate
int
3. Through panel mounted with no airflow (<2 m/s) over the drive
T
= the greater of T
rate
+5°C, or T
ext
int
4. Through panel mounted with air flow (>2 m/s) over the drive
T
= the greater of T
rate
ext
or T
int
Where:
T
= Temperature outside the cabinet
ext
= Temperature inside the cabinet
T
int
= Temperature used to select current rating
T
rate
3.8 Heatsink fan operation
The Unidrive M / Unidrive HS size 11E are ventilated by a heatsink mounted fan and an auxiliary fan
to ventilate the drive box. The fan housing forms a baffle plate, channelling the air through the
heatsink chamber. Thus, regardless of mounting method (surface mounting or through-panel
mounting), the installation of additional baffle plates is not required.
Ensure the minimum clearances around the drive are maintained to allow air to flow freely.
The heatsink fan on Unidrive M / Unidrive HS size 11E is a variable speed device. The drive controls
the speed at which the fan runs based on the temperature of the heatsink and the drive's thermal
model system. The drive is also installed with a variable speed fan to ventilate the capacitor bank.
30Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.9 Enclosing standard drive for high environmental
IP20
(NEMA1)
IP55 (NEMA 12)
enclosure
Drive fitted
with IP54
fan as
standard
Gasket seal provides
IP55 rated barrier to
maintain enclosure
rating after drive is
fitted.
NOTE
protection
The standard drive is rated to IP20 pollution degree 2 (dry, non-conductive contamination only)
(NEMA 1). However, it is possible to configure the drive to achieve a higher IP rating at the rear of the
heatsink when through-panel mounted.
This allows the front of the drive, along with various switchgear, to be housed in an IP55 (NEMA 12)
enclosure with the heatsink protruding through the panel to the external environment. Thus, the
majority of the heat generated by the drive is dissipated outside the enclosure maintaining a reduced
temperature inside the enclosure. This also relies on a good seal being made between the heatsink
and the rear of the enclosure using the gasket provided in the through panel mounting kit.
Figure 3-11 Example of high IP through-panel layout
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The main gasket should be installed as shown in Figure 3-11. Any screws / bolts that are used for
mounting should be installed with M8 flat nylon washers to maintain a seal around the screw hole.
See Figure 3-12 on page 32, sealing clamps are supplied in the through panel mounting kit to aid
compression of the gasket.
The heatsink fans have conformal coated PCBs and have sealant at cable entry points.
Dripping, splashing or sprayed water can impede the operation of the fan, therefore if the
environment is such that the fan may be subjected to more than occasional dripping or
sprayed water while operational, then suitable drip protection covers should be employed.
Unidrive M/HS Frame 11E Power Installation Guide31
Issue Number: 2
Figure 3-12 View showing sealing clamps provided in through hole mounting kit
Enclosure
rear wall
Sealing
brackets
NOTE
NOTE
For detailed information regarding IP55 (NEMA 12) Through Panel Mounting see Figure
3-8 Through-panel mounting dimensions on page 25.
When designing an IP55 (NEMA 12) enclosure (Figure 3-11 Example of high IP through-panel layout on page 31), consideration should be given to the dissipation from the front
of the drive.
Table 3-4 Power losses from the front of the drive when through-panel mounted
Frame sizePower loss
All sizes≤ 480 W
32Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.10External EMC filter
The external EMC filters are designed to be mounted above the drive as shown in Figure 3-13.
Figure 3-13 Mounting of the EMC filter
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* May represent a more economic solution when operating within heavy duty ratings.
4401-0259INL 403
4401-0274INL 403L*
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Unidrive M/HS Frame 11E Power Installation Guide35
Issue Number: 2
Figure 3-15 Input line reactor dimensions
D
H
W
Table 3-12 Input line reactor ratings
Overall
Overall
Model
11403770
11404170 INL 4035573057330
11404640 INL 4035573057330
11502000 INL 6033319358320
11502540 INL 6033319358320
11502850 INL 6033319358320
11602100 INL 6033319358320
11602380 INL 6033319358320
11602630 INL 6033319358320
Model
number
INL 40355730
INL 403L4203057289
Current Inductance
AμHmmmmmmkg°C °C W
width
(W)
300216264
depth
(D)
Overall
height
(H)
Weight
57
Max
ambient
temp*
4050
Max
ambient
temp**
Maximum
losses
* With natural cooling.
** With forced cooling = 1 m/s.
330
36Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.13 Routine maintenance
The drive should be installed in a cool, clean, well ventilated location. Contact of moisture and dust
with the drive should be prevented.
Regular checks of the following should be carried out to ensure drive / installation reliability are
maximized:
Environment
Ambient temperature Ensure the enclosure temperature remains at or below maximum specified
Dust
MoistureEnsure the drive enclosure shows no signs of condensation
Enclosure
Enclosure door filters Ensure filters are not blocked and that air is free to flow
Electrical
Screw connectionsEnsure all screw terminals remain tight
Crimp terminals
Cables Check all cables for signs of damage
Ensure the drive remains dust free – check that the heatsink and drive fan
are not gathering dust. The lifetime of the fan is reduced in dusty
environments.
Ensure all crimp terminals remains tight – check for any discoloration which
could indicate overheating
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Unidrive M/HS Frame 11E Power Installation Guide37
Issue Number: 2
3.13.1 Heatsink fan replacement
2
1
3
4
5
Figure 3-13 Heatsink fan replacement
Heatsink fan removal procedure
1) Using a flat screwdriver remove the fan wires from the fan connector (making a note of the order).
2) Using a T20 Torque driver remove the two screws that retain the heatsink fan housing
3) Withdraw the heatsink fan housing from the drive in the direction shown
4) Pull the fan cable through the fan cable gland
5) Using a T20 Torque driver remove the four screws that retain the fan in the housing
After the fan has been replaced, reverse the above steps to refit.
Table 3.16 Heatsink fan part number
Drive modelHeatsink fan part number
Size 113251-1750
38Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
3.13.2 Auxiliary (capacitor bank) fan replacement
2
3
3
1
2
Figure 3-17 Auxiliary (capacitor bank) fan replacement
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Mechanical installation
Auxiliary fan removal procedure
1) Disconnect the fan wiring connector as shown.
2) Slide the fan housing in the direction shown using the tongue shown in the enlarged diagram of
the fan.
3) Withdraw the fan housing from the drive.
After the fan has been replaced, reverse the above steps to refit.
Table 3-14 Auxillary (capacitor bank) fan part numbers
Drive modelAuxiliary (capacitor bank) fan part number
Size 11(575V and 690V)3251-0042
Size 11 (400V)3251-1202
Unidrive M/HS Frame 11E Power Installation Guide39
Issue Number: 2
Electrical installationTechnical dataUL listing information
3.13.3 Size 11E rectifier fan replacement
1
2
1
2
3
3
Figure 3-18 Size 11E rectifier fan replacement
Size 11 rectifier fan removal procedure
1) Lift the ring eyes provided (one on each side of the drive).
2) Pull the fan housing in the direction shown.
3) Disconnect the fan wiring connector at the location highlighted.
After the fans have been replaced, reverse the above steps to refit the fan housing in the rectifier
(making sure the fan housing aligns correctly in the slots top and bottom).
Table 3-15 Rectifier fan part number
Drive modelRectifier fan part number
Size 11E rectifier3251-0030
40Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4Electrical installation
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
Electric shock risk
The voltages present in the following locations can cause severe electric shock and may be
lethal:
AC supply cables and connections
DC and brake cables, and connections
Output cables and connections
Many internal parts of the drive, and external option units
Unless otherwise indicated, control terminals are single insulated and must not be touched.
Isolation device
The AC and / or DC power supply must be disconnected from the drive using an approved
isolation device before any cover is removed from the drive or before any servicing work
is performed.
STOP function
The STOP function does not remove dangerous voltages from the drive, the motor or any
external option units.
Safe Torque Off function
The Safe Torque Off function does not remove dangerous voltages from the drive, the
motor or any external option units.
Stored charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the
AC and / or DC power supply has been disconnected. If the drive has been energized,
the AC and / or DC power supply must be isolated at least ten minutes before work may
continue. Normally, the capacitors are discharged by an internal resistor. Under certain,
unusual fault conditions, it is possible that the capacitors may fail to discharge, or be
prevented from being discharged by a voltage applied to the output terminals. If the drive
has failed in a manner that causes the display to go blank immediately, it is possible the
capacitors will not be discharged. In this case, consult Emerson Industrial Automation or
their authorized distributor.
Special attention must be given if the drive is installed in equipment which is connected to
the AC supply by a plug and socket. The AC supply terminals of the drive are connected
to the internal capacitors through rectifier diodes which are not intended to give safety
isolation. If the plug terminals can be touched when the plug is disconnected from the
socket, a means of automatically isolating the plug from the drive must be used (e.g. a
latching relay).
Permanent magnet motors
Permanent magnet motors generate electrical power if they are rotated, even when the
supply to the drive is disconnected. If that happens then the drive will become energized
through its motor terminals. If the motor load is capable of rotating the motor when the
supply is disconnected, then the motor must be isolated from the drive before gaining
access to any live parts.
Unidrive M/HS Frame 11E Power Installation Guide41
Issue Number: 2
4.1Power connections
Input connections
Mains
Supply
L1L2
Line reactor
Optional
EMC filter
Fuses
L3
Supply
ground
UVW
Motor
Optional ground
connection
+DC BR
Thermal
overload
protection
device
Output connections
PE
14
L1* L1* L2*
L2* L3* L3*
Figure 4-1 Power connections
* Common AC supply connections are internally linked.
42Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.2Ground connections
WARNING
WARNING
NOTE
Supply
ground
Motor
ground
Electrochemical corrosion of grounding terminals
Ensure that grounding terminals are protected against corrosion i.e. as could be caused
by condensation.
The ground loop impedance must conform to the requirements of local safety regulations.
The drive must be grounded by a connection capable of carrying the prospective fault
current until the protective device (fuse, etc.) disconnects the AC supply.
The ground connections must be inspected and tested at appropriate intervals.
The drive must be connected to the system ground of the AC supply. The ground wiring must
conform to local regulations and codes of practice.
For further information on ground cable sizes, refer to Table 2-4 Protective ground cable ratings on page 14.
The supply and motor ground connections are made using the M10 studs located by the supply and
motor connection terminals. Refer to Figure 4-2.
The supply ground and motor ground connections to the drive are connected internally by a copper
conductor with a cross-sectional area given below:
Figure 4-2 Unidrive M/Unidrive HS size 11E ground connections
Unidrive M/HS Frame 11E Power Installation Guide43
Issue Number: 2
Electrical installation
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4.3AC Supply requirements
WARNING
AC supply voltage:
400 V drive: 380 V to 480 V ±10 %
575 V drive: 500 V to 575 V ±10 %
690 V drive: 500 V to 690 V ±10 %
Number of phases: 3
Maximum supply imbalance: 2 % negative phase sequence (equivalent to 3 % voltage imbalance
between phases).
Frequency range: 45 to 66 Hz
For UL compliance only, the maximum supply symmetrical fault current must be limited to 100 kA
Table 4-1 Supply fault current used to calculate maximum input currents
ModelSymmetrical fault level (kA)
All100
4.3.1Supply types
All drives are suitable for use on any supply type i.e TN-S, TN-C-S, TT and IT.
Supplies with voltage up to 600 V may have grounding at any potential, i.e. neutral, centre or corner
(“grounded delta”)
Supplies with voltage above 600 V may not have corner grounding
Drives are suitable for use on supplies of installation category III and lower, according to IEC 60664-1.
This means they may be connected permanently to the supply at its origin in a building, but for outdoor
installation additional over-voltage suppression (transient voltage surge suppression) must be
provided to reduce category IV to category III.
Operation with IT (ungrounded) supplies:
Special attention is required when using internal or external EMC filters with ungrounded
supplies, because in the event of a ground (earth) fault in the motor circuit the drive may
not trip and the filter could be over-stressed. In this case, additional independent motor
ground fault protection must be provided, refer to Table 4-2. For details of ground fault
protection contact the supplier of the drive.
A ground fault in the supply has no effect in any case. If the motor must continue to run with a ground
fault in its own circuit then an input isolating transformer must be provided and if an EMC filter is
required it must be located in the primary circuit.
Unusual hazards can occur on ungrounded supplies with more than one source, for example on ships. Contact
the supplier of the drive for more information.
Table 4-2 Behavior of the drive in the event of a ground (earth) fault with an IT supply
* Note that it is not possible to remove the internal EMC filter on size 11E.
May not trip – precautions required:
•Use ground leakage relay
May not trip – precautions required:
•Do not use EMC filter
•Use ground leakage relay
44Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.4Line reactors
H
W
D
Input line reactors reduce the risk of damage to the drive resulting from poor phase balance or
severe disturbances on the supply network.
Where line reactors are to be used, reactance values of approximately 2 % are recommended.
Higher values may be used if necessary, but may result in a loss of drive output (reduced torque at
high speed) because of the voltage drop.
For all drive ratings, 2 % line reactors permit drives to be used with a supply unbalance of up to 3.5 %
negative phase sequence (equivalent to 5 % voltage imbalance between phases).
Severe disturbances may be caused by the following factors, for example:
•Power factor correction equipment connected close to the drive.
•Large DC drives having no or inadequate line reactors connected to the supply.
•Across the line (DOL) started motor(s) connected to the supply such that when any of these
motors are started, the voltage dip exceeds 20 %
Such disturbances may cause excessive peak currents to flow in the input power circuit of the drive.
This may cause nuisance tripping, or in extreme cases, failure of the drive.
Drives of low power rating may also be susceptible to disturbance when connected to supplies with a
high rated capacity.
Drive size 11E does not have internal input line reactor hence an external input line reactor must be
used.
Each drive must have its own reactor(s). Three individual reactors or a single three-phase reactor
should be used.
Reactor current ratings
The current rating of the line reactors should be as follows:
Continuous current rating:
Not less than the continuous input current rating of the drive
Repetitive peak current rating:
Not less than twice the continuous input current rating of the drive
Figure 4-3 Input line reactor/output sharing choke dimensions
Unidrive M/HS Frame 11E Power Installation Guide45
Issue Number: 2
Technical dataUL listing information
Table 4-3 Input line reactor ratings
L
Y
100
----------
V
3
-------
×
1
2π f I
------------
×=
NOTE
Overall
Overall
Model
11403770
11404170INL 4035573057330
11404640INL 4035573057330
11502000INL 6033319358320
11502540INL 6033319358320
11502850INL 6033319358320
11602100INL 6033319358320
11602380INL 6033319358320
11602630INL 6033319358320
Model
number
INL 403L42030
INL 4035573057330
Current Inductance
AμHmmmmmmkg°C °C W
width
(W)
300216264
depth
(D)
Overall
height
(H)
Weight
57
Max
ambient
temp*
4050
Max
ambient
temp**
Maximum
* With natural cooling.
** With forced cooling = 1 m/s.
4.4.1Input inductor calculation
To calculate the inductance required (at Y %), use the following equation:
Where:
I = drive rated input current (A)
L = inductance (H)
f = supply frequency (Hz)
V = voltage between lines
losses
289
4.5 24 Vdc supply
The 24 Vdc supply connected to control terminals 1 & 2* provides the following functions:
•It can be used to supplement the drive's own internal 24 V supply when multiple option modules
are being used and the current drawn by these module is greater than the drive can supply.
•It can be used as a back-up power supply to keep the control circuits of the drive powered up
when the line power supply is removed. This allows any fieldbus modules, application modules,
encoders or serial communications to continue to operate.
•It can be used to commission the drive when the line power supply is not available, as the display
operates correctly. However, the drive will be in the Under voltage trip state unless either line
power supply or low voltage DC operation is enabled, therefore diagnostics may not be possible.
(Power down save parameters are not saved when using the 24 V back-up power supply input).
•If the DC bus voltage is too low to run the main SMPS in the drive, then the 24 V supply can be
used to supply all the low voltage power requirements of the drive. Low Under Voltage Threshold Select (06.067) must also be enabled for this to happen.
On size 11, the power 24 Vdc supply (terminals 51, 52) must be connected to enable the 24 V dc
supply to be used as a backup supply, when the line power supply is removed. If the power 24 Vdc
supply is not connected none of the above mentioned functions can be used, "Waiting For Power
System" will be displayed on the keypad and no drive operations are possible. The location of the
46Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
power 24 Vdc can be identified from Figure 4-4 Location of the 24 Vdc power supply connection on size 11 on page 48
Table 4-4 24 Vdc supply connections
FunctionTerminal
Supplement the drive’s internal supply
Terminal
1, 2*
Terminal
Back-up supply for the control circuit
1, 2*
51, 52
* Terminal 9 on Unidrive M702 and HS72
The working voltage range of the control 24 V power supply is as follows:
1 0V common
2 +24 Vdc *
Nominal operating voltage 24.0 Vdc
Minimum continuous operating voltage19.2 V
Maximum continuous operating voltage28.0 V
Minimum start up voltage21.6 V
Maximum power supply requirement at 24 V40 W
Recommended fuse3 A, 50 Vdc
* Terminal 9 on Unidrive M702 and HS72
Minimum and maximum voltage values include ripple and noise. Ripple and noise values must not
exceed 5 %.
The working range of the 24 V power supply is as follows:
Unidrive M/HS Frame 11E Power Installation Guide47
Issue Number: 2
Figure 4-4 Location of the 24 Vdc power supply connection on size 11
51 52
4.6 Low voltage operation
With the addition of a 24 Vdc power supply to supply the control circuits, the drive is able to operate
from a low voltage DC supply with a range from 24 Vdc to the maximum DC volts.It is possible for
the drive to go from operating on a normal line power supply voltage to operating on a much lower
supply voltage without interruption.
Going from low voltage operation to normal mains operation requires the inrush current to be
controlled. This may be provided externally. If not, the drive supply can be interrupted to utilise the
normal soft starting method in the drive.
To fully exploit the new low voltage mode of operation, the under voltage trip level is now user
programmable. For application data, contact the supplier of the drive.
The working voltage range of the low voltage DC power supply is as follows:
Size 11
Minimum continuous operating voltage: 26 V
Minimum start up voltage: 32 V
Maximum over voltage trip threshold: 230 V drives: 415 V
400 V drives: 830 V
575 V drives: 990 V
690 V drives: 1190 V
48Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
In low voltage mode only, a 24 V supply needs to be provided for the heatsink fan. The fan supply
6612
1
should be connected to terminal 61 and 62.
610V common
62+24 Vdc heatsink fan supply
Size 11
Nominal operating voltage 24.0 Vdc
Minimum continuous operating voltage23.5 Vdc
Maximum continuous operating voltage27 Vdc
Current consumption Size 11 (all): 6A
Recommended power supply24 V, 7 A
Recommended fuse8A fast blow
Figure 4-5 Location of the heatsink fan supply connector
When operating on normal mains supply, the heatsink fan on all drive sizes is supplied internally by
the drive. When operating in low voltage mode it is necessary to connect an external 24V supply to
terminal 61 and 62 if heatsink fan operation is required. Please see section 4.6 Low voltage operation for more details.
4.8Motor requirements
No. of phases: 3
Maximum voltage:
400 V drive: 480 V
575 V drive: 575 V
690 V drive: 690 V
Unidrive M/HS Frame 11E Power Installation Guide49
Issue Number: 2
Technical dataUL listing information
4.9Ratings
NOTE
WARNING
WARNING
See section 2.4 Ratings on page 13.
Maximum continuous input current
The values of maximum continuous input current are given to aid the selection of cables and fuses.
These values are stated for the worst case condition with the unusual combination of stiff supply with
high imbalance. The value stated for the maximum continuous input current would only be seen in
one of the input phases. The current in the other two phases would be significantly lower.
The values of maximum input current are stated for a supply with a 2 % negative phase-sequence
imbalance and rated at the maximum supply fault current given in Table 4-5.
Table 4-5 Supply fault current used to calculate maximum input currents
ModelSymmetrical fault level (kA)
All sizes100
The nominal cable sizes given in section 2.4 Ratings are only a guide. Refer to local wiring
regulations for the correct size of cables. In some cases a larger cable is required to avoid excessive
voltage drop.
The nominal output cable sizes in section 2.4 Ratings on page 13 assume that the motor
maximum current matches that of the drive. Where a motor of reduced rating is used the
cable rating may be chosen to match that of the motor. To ensure that the motor and cable
are protected against over-load, the drive must be programmed with the correct motor
rated current.
Fuses
The AC supply to the drive must be installed with suitable protection against overload and
short-circuits. Nominal fuse ratings are shown in section 2.4 Ratings on page 13. Failure
to observe this requirement will cause risk of fire.
A fuse or other protection must be included in all live connections to the AC supply.
Fuse types
The fuse voltage rating must be suitable for the drive supply voltage.
4.10 Output circuit and motor protection
The output circuit has fast-acting electronic short-circuit protection which limits the fault current to
typically no more than five times the rated output current, and interrupts the current in approximately
20 µs. No additional short-circuit protection devices are required.
The drive provides overload protection for the motor and its cable. For this to be effective, Rated
Current (00.046) must be set to suit the motor.
Rated Current (00.046) must be set correctly to avoid a risk of fire in the event of motor
overload.
There is also provision for the use of a motor thermistor to prevent over-heating of the motor, e.g. due
to loss of cooling.
50Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.10.1Motor cable types
Normal capacitance
Shield or armour
separated from the cores
High capacitance
Shield or armour close
to the cores
Since capacitance in the motor cable causes loading on the output of the drive, ensure the cable
length does not exceed the values given in Table 5-22 Maximum motor cable lengths on page 85
Use 105 °C (221 °F) (UL 60/75 °C temp rise) PVC-insulated cable with copper conductors having a
suitable voltage rating, for the following power connections:
•AC supply to external EMC filter (when used)
•AC supply (or external EMC filter) to drive
•Drive to motor
•Drive to braking resistor
4.10.2High-capacitance / reduced diameter cables
The maximum cable length is reduced from that shown in Table 5-22 Maximum motor cable
lengths on page 85 if high capacitance or reduced diameter motor cables are used.
Most cables have an insulating jacket between the cores and the armor or shield; these cables have
a low capacitance and are recommended. Cables that do not have an insulating jacket tend to have
high capacitance; if a cable of this type is used, the maximum cable length is half that quoted in the
tables, (Figure 4-6 shows how to identify the two types).
Figure 4-6 Cable construction influencing the capacitance
The maximum motor cable lengths specified in section 5.1.22 Maximum motor cable lengths on
page 85 is shielded and contains four cores. Typical capacitance for this type of cable is 130 pF/m
(i.e. from one core to all others and the shield connected together).
4.10.3Motor winding voltage
The PWM output voltage can adversely affect the inter-turn insulation in the motor. This is because of
the high rate of change of voltage, in conjunction with the impedance of the motor cable and the
distributed nature of the motor winding.
For normal operation with AC supplies up to 500 Vac and a standard motor with a good quality
insulation system, there is no need for any special precautions. In case of doubt the motor supplier
should be consulted. Special precautions are recommended under the following conditions, but only
if the motor cable length exceeds 10 m:
•Operation of 400 V drive with continuous or very frequent sustained braking
•Multiple motors connected to a single drive
For multiple motors, the precautions given in section 4.10.4 Multiple motors should be followed.
For the other cases listed, it is recommended that an inverter-rated motor be used taking into
account the voltage rating of the inverter. This has a reinforced insulation system intended by the
manufacturer for repetitive fast-rising pulsed voltage operation.
Unidrive M/HS Frame 11E Power Installation Guide51
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Technical dataUL listing information
Users of 575 V NEMA rated motors should note that the specification for inverter-rated motors given
Motor protection
relay
Chain connection (preferred)
in NEMA MG1 section 31 is sufficient for motoring operation but not where the motor spends
significant periods braking. In that case an insulation peak voltage rating of 2.2 kV is recommended.
If it is not practical to use an inverter-rated motor, an output choke (inductor) should be used. The
recommended type is a simple iron-cored component with a reactance of about 2 %. The exact value
is not critical. This operates in conjunction with the capacitance of the motor cable to increase the
rise-time of the motor terminal voltage and prevent excessive electrical stress.
4.10.4Multiple motors
Open-loop only
If the drive is to control more than one motor, one of the fixed V/F modes should be selected
(Pr 05.014 = Fixed or Squared). Make the motor connections as shown in Figure 4-7 and Figure 4-8.
The maximum motor cable lengths specified in section 5.1.22 Maximum motor cable lengths on
page 85 apply to the sum of the total cable lengths from the drive to each motor.
It is recommended that each motor is connected through a protection relay since the drive cannot
protect each motor individually. For
connected as shown in Figure 4-8, even when the cable lengths are less than the maximum permissible.
For high DC voltages or when supplied by a regen system, a sinusoidal filter is recommended. For
details of filter or inductor sizes refer to the supplier of the drive.
Figure 4-7 Preferred chain connection for multiple motors
connection, a sinusoidal filter or an output inductor must be
52Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Figure 4-8 Alternative connection for multiple motors
connection
Inductor
Motor protection
relay
WARNING
4.10.5 / Δ motor operation
The voltage rating for and Δ connections of the motor should always be checked before
attempting to run the motor.
The default setting of the motor rated voltage parameter is the same as the drive rated voltage, i.e.
400 V drive 400 V rated voltage
230 V drive 230 V rated voltage
A typical 3 phase motor would be connected in
however, variations on this are common e.g. 690 V
Incorrect connection of the windings will cause severe under or over fluxing of the motor, leading to a
very poor output torque or motor saturation and overheating respectively.
4.10.6Output contactor
If the cable between the drive and the motor is to be interrupted by a contactor or circuit
breaker, ensure that the drive is disabled before the contactor or circuit breaker is opened
or closed. Severe arcing may occur if this circuit is interrupted with the motor running at
high current and low speed.
A contactor is sometimes required to be installed between the drive and motor for safety purposes.
The recommended motor contactor is the AC3 type.
Switching of an output contactor should only occur when the output of the drive is disabled.
Opening or closing of the contactor with the drive enabled will lead to:
1. OI ac trips (which cannot be reset for 10 seconds)
2. High levels of radio frequency noise emission
3. Increased contactor wear and tear
Unidrive M/HS Frame 11E Power Installation Guide53
Issue Number: 2
The Drive Enable terminal (terminal 31 on Unidrive M700 / M701 / HS70 / HS71 and terminal 11 & 13
NOTE
WARNING
WARNING
on Unidrive M702 / HS72) when opened provides a Safe Torque Off function. This can in many cases
replace output contactors.
For further information see the Control User Guide.
4.11Braking
Braking occurs when the drive is decelerating the motor, or is preventing the motor from gaining
speed due to mechanical influences. During braking, energy is returned to the drive from the motor.
When motor braking is applied by the drive, the maximum regenerated power that the drive can
absorb is equal to the power dissipation (losses) of the drive.
When the regenerated power is likely to exceed these losses, the DC bus voltage of the drive
increases. Under default conditions, the drive brakes the motor under PI control, which extends the
deceleration time as necessary in order to prevent the DC bus voltage from rising above a user
defined set-point.
If the drive is expected to rapidly decelerate a load, or to hold back an overhauling load, a braking
resistor must be installed.
Table 4-6 shows the default DC voltage level at which the drive turns on the braking transistor.
However the braking resistor turn on and the turn off voltages are programmable with Braking IGBT Lower Threshold (06.073) and Braking IGBT Upper Threshold (06.074).
Table 4-6 Default braking transistor turn on voltage
Drive voltage ratingDC bus voltage level
400 V780 V
575 V930 V
690 V1120 V
When a braking resistor is used, Pr 00.015 should be set to Fast Ramp Mode.
High temperatures
Braking resistors can reach high temperatures. Locate braking resistors so that damage
cannot result. Use cable having insulation capable of withstanding high temperatures.
4.11.1Braking resistor
Overload protection
When a braking resistor is used, it is essential that an overload protection device is
incorporated in the braking resistor circuit; this is described in Figure 4-9 on page 56.
When a braking resistor is to be mounted outside the enclosure, ensure that it is mounted in a
ventilated metal housing that will perform the following functions:
•Prevent inadvertent contact with the resistor
•Allow adequate ventilation for the resistor
When compliance with EMC emission standards is required, external connection requires the cable
to be armored or shielded, since it is not fully contained in a metal enclosure. See section 410 General EMC enclosure layout showing ground connections on page 59 for further details.
Internal connection does not require the cable to be armored or shielded.
54Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Table 4-7 Minimum resistance values and peak power rating for the braking resistor at 40 °C (104 °F)
Model
Minimum
resistance*
Instantaneous power
rating
Continuous power
rating
ΩkWkW
400 V
114037701.83369.4185
114041701.2563.4200
114046401.2563.4250
575 V
115020001.83525.2150
115025401.83525.2185
115028501.83525.2225
690 V
116021002.2633.6185
116023802.2633.6200
116026302.2633.6250
* Resistor tolerance: ±10 %.
For high-inertia loads or under continuous braking, the continuous power dissipated in the braking
resistor may be as high as the power rating of the drive. The total energy dissipated in the braking
resistor is dependent on the amount of energy to be extracted from the load.
The instantaneous power rating refers to the short-term maximum power dissipated during the on
intervals of the pulse width modulated braking control cycle. The braking resistor must be able to
withstand this dissipation for short intervals (milliseconds). Higher resistance values require
proportionately lower instantaneous power ratings.
In most applications, braking occurs only occasionally. This allows the continuous power rating of the
braking resistor to be much lower than the power rating of the drive. It is therefore essential that the
instantaneous power rating and energy rating of the braking resistor are sufficient for the most
extreme braking duty that is likely to be encountered.
Optimization of the braking resistor requires careful consideration of the braking duty.
Select a value of resistance for the braking resistor that is not less than the specified minimum
resistance. Larger resistance values may give a cost saving, as well as a safety benefit in the event
of a fault in the braking system. Braking capability will then be reduced, which could cause the drive
to trip during braking if the value chosen is too large.
Thermal protection circuit for the braking resistor
The thermal protection circuit must disconnect the AC supply from the drive if the resistor becomes
overloaded due to a fault. Figure 4-9 shows a typical circuit arrangement.
The drive software contains an overload protection function for a braking resistor. In order to enable
and set-up this function, it is necessary to enter three values into the drive:
•Braking Resistor Rated Power (10.030)
•Braking Resistor Thermal Time Constant (10.031)
•Braking Resistor Resistance (10.061)
This data should be obtained from the manufacturer of the braking resistors.
Pr 10.039 gives an indication of braking resistor temperature based on a simple thermal model. Zero
indicates the resistor is close to ambient and 100 % is the maximum temperature the resistor can
withstand. A ‘Brake Resistor’ alarm is given if this parameter is above 75 % and the braking IGBT is
active. A Brake R Too Hot trip will occur if Pr 10.039 reaches 100 %, when Pr 10.037 is set to 0
(default value) or 1.
If Pr 10.037 is equal to 2 or 3, a Brake R Too Hot trip will not occur when Pr 10.039 reaches 100 %,
but instead the braking IGBT will be disabled until Pr 10.039 falls below 95 %. This option is intended
for applications with parallel connected DC buses where there are several braking resistors, each of
which cannot withstand full DC bus voltage continuously. With this type of application it is unlikely the
braking energy will be shared equally between the resistors because of voltage measurement
tolerances within the individual drives. Therefore with Pr 10.037 set to 2 or 3, then as soon as a
resistor has reached its maximum temperature the drive will disable the braking IGBT, and another
resistor on another drive will take up the braking energy. Once Pr 10.039 has fallen below 95 % the
drive will allow the braking IGBT to operate again.
See the Parameter Reference Guide for more information on Pr 10.030, Pr 10.031, Pr 10.037 and
Pr 10.039.
This software overload protection should be used in addition to an external overload protection
device.
56Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.12 Ground leakage
WARNING
WARNING
The size 11E drive has an internal EMC capacitor installed, this capacitor is not removable. The
ground leakage current is as follows:
56 mA AC at 400 V 50 Hz (proportional to supply voltage and frequency)
18 µA DC with a 600 V DC bus (33 MΩ)
Note there is an internal voltage surge protection device connected to ground. Under normal
circumstances this carries negligible current.
The ground leakage current is high. A permanent fixed ground connection must be
provided, or other suitable measures taken to prevent a safety hazard occurring if the
connection is lost.
4.12.1 Use of residual current device (RCD)
There are three common types of ELCB / RCD:
1. AC - detects AC fault currents
2. A - detects AC and pulsating DC fault currents (provided the DC current reaches zero at least
once every half cycle)
3. B - detects AC, pulsating DC and smooth DC fault currents
Only type B ELCB / RCD are suitable for use with 3 phase inverter drives.
If an external EMC filter is used, a delay of at least 50 ms should be incorporated to ensure spurious
trips are not seen. The leakage current is likely to exceed the trip level if all of the phases are not
energized simultaneously.
Unidrive M/HS Frame 11E Power Installation Guide57
Issue Number: 2
Electrical installation
Technical dataUL listing information
4.13 EMC (Electromagnetic compatibility)
WARNING
NOTE
WARNING
The requirements for EMC are divided into three levels in the following three sections:
Section 4.13.2, General requirements for all applications, to ensure reliable operation of the drive
and minimise the risk of disturbing nearby equipment. The immunity standards specified in section 11
will be met, but no specific emission standards. Note also the special requirements given in Surge immunity of control circuits - long cables and connections outside a building on page 71 for increased
surge immunity of control circuits where control wiring is extended.
Section 4.13.3, Requirements for meeting the EMC standard for power drive systems,
IEC61800-3 (EN 61800-3:2004+A1:2012).
Section 4.13.4, Requirements for meeting the generic emission standards for the industrial
environment, IEC61000-6-4, EN 61000-6-4:2007+A1:2011.
The recommendations of section 4.13.2 will usually be sufficient to avoid causing disturbance to
adjacent equipment of industrial quality. If particularly sensitive equipment is to be used nearby, or in
a non-industrial environment, then the recommendations of section 4.13.3 or section 4.13.4 should
be followed to give reduced radio-frequency emission.
In order to ensure the installation meets the various emission standards described in:
•The EMC data sheet available from the supplier of the drive
•The Declaration of Conformity at the front of this manual
The correct external EMC filter must be used, and all of the guidelines in section 4.13.2 and section
4.13.4 must be followed.
High ground leakage current
When an EMC filter is used, a permanent fixed ground connection must be provided which
does not pass through a connector or flexible power cord. This includes the internal EMC
filter.
The installer of the drive is responsible for ensuring compliance with the EMC regulations
that apply where the drive is to be used.
4.13.1 Internal EMC filter
The size 11E drive has an internal EMC capacitor installed, this capacitor is not removable. This (and
the lack of a negative DC terminal) mean that the size 11E drive is not suitable for use as part of a
regen system.
The non removable internal EMC filter means the drive is not suitable for use with
ungrounded (IT) supplies unless additional motor ground fault protection is installed.
For details of ground fault protection contact the supplier of the drive.
The internal EMC filter reduces radio-frequency emission into the line power supply. Where the
motor cable is short, it permits the requirements of EN 61800-3:2004+A1:2012 to be met for the
second environment - see section 4.13.3. For longer motor cables the filter continues to provide a
useful reduction in emission level, and when used with any length of shielded motor cable up to the
limit for the drive, it is unlikely that nearby industrial equipment will be disturbed.
58Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.13.2 General requirements for EMC
Optional
ground
connection
External
controller
0V
If the control circuit 0V
is to be grounded, this
should be done at the
system controller onlyto
avoid injecting noise
currents into the 0V circuit
Grounding bar
PE
~
PE
If ground connections are
made using a separate
cable, they should run
parallel to the appropriate
power cable to minimise
emissions
Use four core cableto
connect the motor to the drive.
The ground conductor in the
motor cable must be connected
directly to the earth terminal of
the drive and motor.
It must not be connected directly
to the power earth busbar.
The incoming supply ground
should be connected to a
single power ground bus bar
or low impedance earth
terminal inside the cubicle.
This should be used as a
common 'clean' ground for all
components inside the cubicle.
3 phase AC supply
Optional EMC
filter
Metal backplate
safety bonded to
power ground busbar
INL 1
Metal backplate
Ground (earth) connections
The grounding arrangements should be in accordance with Figure 4-10, which shows a single drive
on a back-plate with or without an additional enclosure.
Figure 4-10 shows how to manage EMC when using an unshielded motor cable. However a shielded
cable is preferable, in which case it should be installed as shown in section 4.13.4 Compliance with generic emission standards on page 64.
Figure 4-10
General EMC enclosure layout showing ground connections
Unidrive M/HS Frame 11E Power Installation Guide59
Issue Number: 2
Electrical installation
Technical dataUL listing information
Cable layout
Optional braking
resistor and overload
Do not place sensitive
(unscreened) signal circuits
in a zone extending
300mm (12”)all around the
Drive, motor cable, input
cable from RFI filter and
unscreened braking resistor
cable (if used)
300mm
(12in)
INL 1
NOTE
Figure 4-11 indicates the clearances which should be observed around the drive and related ‘noisy’
power cables by all sensitive control signals / equipment.
Figure 4-11 Drive cable clearances
N
Any signal cables which are carried inside the motor cable (i.e. motor thermistor, motor brake) will
pick up large pulse currents via the cable capacitance. The shield of these signal cables must be
connected to ground close to the motor cable, to avoid this noise current spreading through the
control system.
60Unidrive M/HS Frame 11E Power Installation Guide
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Feedback device cable shielding
NOTE
NOTE
Shielding considerations are important for PWM drive installations due to the high voltages and
currents present in the output (motor) circuit with a very wide frequency spectrum, typically from 0 to
20 MHz.
The following guidance is divided into two parts:
1. Ensuring correct transfer of data without disturbance from electrical noise originating either within
the drive or from outside.
2. Additional measures to prevent unwanted emission of radio frequency noise. These are optional
and only required where the installation is subject to specific requirements for radio frequency
emission control.
To ensure correct transfer of data, observe the following:
Resolver connections:
•Use a cable with an overall shield and twisted pairs for the resolver signals
•Connect the cable shield to the drive 0V connection by the shortest possible link ("pigtail")
•It is generally preferable not to connect the cable shield to the resolver. However in cases where
there is an exceptional level of common-mode noise voltage present on the resolver body, it may
be helpful to connect the shield there. If this is done then it becomes essential to ensure the
absolute minimum length of "pigtails" at both shield connections, and possibly to clamp the cable
shield directly to the resolver body and to the drive grounding bracket.
•The cable should preferably not be interrupted. If interruptions are unavoidable, ensure the
absolute minimum length of "pigtail" in the shield connections at each interruption.
Encoder connections:
•Use a cable with the correct impedance
•Use a cable with individually shielded twisted pairs
•Connect the cable shields to 0V at both the drive and the encoder, using the shortest possible
links ("pigtails")
•The cable should preferably not be interrupted. If interruptions are unavoidable, ensure the
absolute minimum length of "pigtail" in the shield connections at each interruption. Preferably,
use a connection method which provides substantial metallic clamps for the cable shield
terminations.
The above applies where the encoder body is isolated from the motor and where the encoder circuit
is isolated from the encoder body. Where there is no isolation between the encoder circuits and the
motor body, and in case of doubt, the following additional requirement must be observed. This gives
the best possible noise immunity.
•The shields must be directly clamped to the encoder body (no pigtail) and to the drive grounding
bracket. This may be achieved by clamping of the individual shields or by providing an additional
overall shield which is clamped.
The recommendations of the encoder manufacturer must also be adhered to for the
encoder connections.
In order to guarantee maximum noise immunity for any application double shielded cable
as shown should be used.
In some cases single shielding of each pair of differential signals cables, or a single overall shield
with individual shield on the thermistor connections is sufficient. In these cases all the shields should
be connected to ground and 0V at both ends.
If the 0V is required to be left floating, a cable with individual shields and an overall shield must be
used.
Unidrive M/HS Frame 11E Power Installation Guide61
Issue Number: 2
Figure 4-12 and Figure 4-13 illustrate the preferred construction of cable and the method of
Twi sted
pair
cable
Twisted pair shield
Cable
Cable overall shield
Cable
Cable
shield
Twis ted
pair
shield
Cable
shield
Twis ted
pair
shield
Connection
at motor
Connection
at drive
Ground clamp
on shield
Shield
connection
to 0V
Shield
connection
to 0V
clamping. The outer sheath of the cable should be stripped back enough to allow the clamp to be
installed. The shield must not be broken or opened at this point. The clamps should be installed close
to the drive or feedback device, with the ground connections made to a ground plate or similar
metallic ground surface
Figure 4-12 Feedback cable, twisted pair
Figure 4-13 Feedback cable connections
To ensure suppression of radio frequency emission, observe the following:
•Use a cable with an overall shield
Clamp the overall shield to grounded metallic surfaces at both the encoder and the drive, as
illustrated in Figure 4-13
62Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
4.13.3 Compliance with EN 61800-3:2004+A1:2012 (standard for Power
CAUT ION
CAUT ION
Drive Systems)
Meeting the requirements of this standard depends on the environment that the drive is intended to
operate in, as follows:
Operation in the first environment
Observe the guidelines given in section 4.13.4 Compliance with generic emission standards on
page 64. An external EMC filter will always be required.
This is a product of the restricted distribution class according to IEC 61800-3
In a residential environment this product may cause radio interference in which case the
user may be required to take adequate measures.
Operation in the second environment
In all cases a shielded motor cable must be used, and an EMC filter is required for all Unidrive M /
Unidrive HS drives with a rated input current of less than 100 A.
The drive contains an in-built filter for basic emission control. In some cases feeding the motor cables
(U, V and W) once through a ferrite ring can maintain compliance for longer cable lengths. The
requirements of operating in the second environment are met, depending on the motor cable length
for 3 kHz switching frequency as stated in Table 4-8.
The table summarizes the performance of in-built filters when used with Unidrive M / Unidrive HS
size 11 drives and single pairs of Unidrive M / Unidrive HS size 11 drives and Unidrive M / Unidrive HS rectifiers, assembled in the standard recommended configuration.
Unrestricted: EN 61800-3:2004+A1:2012 second environment, unrestricted distribution.
For longer motor cables, an external filter is required. Where a filter is required, follow the guidelines
in section 4.13.4 Compliance with generic emission standards .
Where a filter is not required, follow the guidelines given in section 4.13.2 General requirements for EMC on page 59.
The second environment typically includes an industrial low-voltage power supply network
which does not supply buildings used for residential purposes. Operating the drive in this
environment without an external EMC filter may cause interference to nearby electronic
equipment whose sensitivity has not been appreciated. The user must take remedial
measures if this situation arises. If the consequences of unexpected disturbances are
severe, it is recommended that the guidelines in section 4.13.4 Compliance with generic emission standards be adhered to.
Detailed instructions and EMC information are given in the Unidrive M / Unidrive HS EMC Data Sheet which is available from the supplier of the drive.
Unidrive M/HS Frame 11E Power Installation Guide63
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Electrical installation
Technical dataUL listing information
4.13.4 Compliance with generic emission standards
³100mm (4in)
³100mm
(4in)
³100mm (4in)
Use the recommended filter and shielded motor cable. Observe the layout rules given in Figure 4-14.
Ensure the AC supply and ground cables are at least 100 mm from the power module and motor
cable.
Figure 4-14 Supply and ground cable clearance
64Unidrive M/HS Frame 11E Power Installation Guide
Avoid placing sensitive signal circuits in a zone 300 mm (12 in) all around the power module.
Unidrive M/HS Frame 11E Power Installation Guide65
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Technical dataUL listing information
4.13.5 Ensure good EMC grounding.
Motor cable screen
(unbroken) physically
fixed to the backplate.
Ensure direct
metal contact
at drive and
filter (not shown)
mounting
points (any
paint must be
removed).
Figure 4-16 Grounding the drive, motor cable shield and filter
Connect the shield of the motor cable to the ground terminal of the motor frame using a link that is as
short as possible and not exceeding 50 mm (2 in) long. A full 360
°
termination of the shield to the
terminal housing of the motor is beneficial.
It is unimportant for EMC purposes whether the motor cable contains an internal (safety) ground
core, or there is a separate external ground conductor, or grounding is through the shield alone. An
internal ground core will carry a high noise current and therefore it must be terminated as close as
possible to the shield termination.
66Unidrive M/HS Frame 11E Power Installation Guide
Unshielded wiring to the optional braking resistor(s) may be used, provided the wiring does not run
external to the enclosure. Ensure a minimum spacing of 300 mm (12 in) from signal wiring and the
AC supply wiring to the external EMC filter. Otherwise this wiring must be shielded.
Unidrive M/HS Frame 11E Power Installation Guide67
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Electrical installation
Technical dataUL listing information
Figure 4-18 Shielding requirements of optional external braking resistor
+DC BR
Optional external
braking resistor
Enclosure
+DC BR
Optional external
braking resistor
Enclosure
OR
If the control wiring is to leave the enclosure, it must be shielded and the shield(s) clamped to the
drive using the grounding bracket as shown in Figure 4-19. Remove the outer insulating cover of the
cable to ensure the shield(s) make contact with the bracket, but keep the shield(s) intact until as
close as possible to the terminals
Alternatively, wiring may be passed through a ferrite ring, part no. 3225-1004.
68Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
Figure 4-19 Grounding of signal cable shields using the grounding bracket
Unidrive M/HS Frame 11E Power Installation Guide69
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Technical dataUL listing information
4.13.6 Variations in the EMC wiring
From the Drive
To the motor
Back-plate
Enclosure
Interruptions to the motor cable
The motor cable should ideally be a single length of shielded or armored cable having no
interruptions. In some situations it may be necessary to interrupt the cable, as in the following
examples:
•Connecting the motor cable to a terminal block in the drive enclosure
•Installing a motor isolator/disconnect switch for safety when work is done on the motor
In these cases the following guidelines should be followed.
Terminal block in the enclosure
The motor cable shields should be bonded to the back-plate using uninsulated metal cable-clamps
which should be positioned as close as possible to the terminal block. Keep the length of power
conductors to a minimum and ensure that all sensitive equipment and circuits are at least 0.3m (12
in) away from the terminal block.
Figure 4-20 Connecting the motor cable to a terminal block in the enclosure
Using a motor isolator/disconnect-switch
The motor cable shields should be connected by a very short conductor having a low inductance.
The use of a flat metal coupling-bar is recommended; conventional wire is not suitable.
The shields should be bonded directly to the coupling-bar using uninsulated metal cable-clamps.
Keep the length of the exposed power conductors to a minimum and ensure that all sensitive
equipment and circuits are at least 0.3 m (12 in) away.
The coupling-bar may be grounded to a known low-impedance ground nearby, for example a large
metallic structure which is connected closely to the drive ground.
70Unidrive M/HS Frame 11E Power Installation Guide
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Figure 4-21 Connecting the motor cable to an isolator/disconnect switch
Isolator
Coupling bar
From the
Drive
To the
motor
(Ifrequired)
Signal from plantSignal to drive
0V0V
30V zener diode
e.g. 2xBZW50-15
Surge immunity of control circuits - long cables and connections outside a building
The input/output ports for the control circuits are designed for general use within machines and small
systems without any special precautions.
These circuits meet the requirements of EN 61000-6-2:2005 (1 kV surge) provided the 0V connection
is not grounded.
In applications where they may be exposed to high-energy voltage surges, some special measures
may be required to prevent malfunction or damage. Surges may be caused by lightning or severe
power faults in association with grounding arrangements which permit high transient voltages
between nominally grounded points. This is a particular risk where the circuits extend outside the
protection of a building.
As a general rule, if the circuits are to pass outside the building where the drive is located, or if cable
runs within a building exceed 30 m, some additional precautions are advisable. One of the following
techniques should be used:
1. Galvanic isolation, i.e. do not connect the control 0V terminal to ground. Avoid loops in the
control wiring, i.e. ensure every control wire is accompanied by its return (0V) wire.
2. Shielded cable with additional power ground bonding. The cable shield may be connected to
ground at both ends, but in addition the ground conductors at both ends of the cable must be
bonded together by a power ground cable (equipotential bonding cable) with cross-sectional
area of at least 10 mm
safety requirements of the plant. This ensures that fault or surge current passes mainly through
the ground cable and not in the signal cable shield. If the building or plant has a well-designed
common bonded network this precaution is not necessary.
3. Additional over-voltage suppression - for the analog and digital inputs and outputs, a zener diode
network or a commercially available surge suppressor may be connected in parallel with the
input circuit as shown in Figure 4-22 and Figure 4-23.
If a digital port experiences a severe surge its protective trip may operate (O.Ld1 trip code 26). For
continued operation after such an event, the trip can be reset automatically by setting Pr 10.034 to 5.
Figure 4-22 Surge suppression for digital and unipolar inputs and outputs
2
, or 10 times the area of the signal cable shield, or to suit the electrical
Unidrive M/HS Frame 11E Power Installation Guide71
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Figure 4-23 Surge suppression for analog and bipolar inputs and outputs
Signal from plantSignal to drive
0V0V
2 x 15V zener diode
e.g. 2xBZW50-15
Surge suppression devices are available as rail-mounting modules, e.g. from Phoenix Contact:
Unipolar TT-UKK5-D/24 DC
Bipolar TT-UKK5-D/24 AC
These devices are not suitable for encoder signals or fast digital data networks because the
capacitance of the diodes adversely affects the signal. Most encoders have galvanic isolation of the
signal circuit from the motor frame, in which case no precautions are required. For data networks,
follow the specific recommendations for the particular network.
72Unidrive M/HS Frame 11E Power Installation Guide
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5Technical data
5.1Drive technical data
5.1.1Power and current ratings
The continuous current ratings given are for maximum 40 °C (104 °F), 1000 m altitude and 2 kHz
switching frequency. Derating is required for higher switching frequencies, ambient temperature >40
°C (104 °F) and high altitude. For further information, please refer to Section 5.1.2 on page 74 and
section 5.1.9 on page 79.
Table 5-1 400 V drive ratings (380 V to 480 V ±10 %)
Normal DutyHeavy Duty
Maximum
Model
11403770437225350481377565
11404170487250400536417625
11404640507280450558464696
continuous
output
current
Nominal
power at
400 V
AkWhpAAAAkWhp
Motor
power at
460 V
current
Table 5-2 575 V drive ratings (500 V to 575 V ±10 %)
- 20 °C to 55 °C (- 4 °F to 122 °F).
Output current derating must be applied at ambient temperatures >40 °C (104 °F).
Cooling method: Forced convection
Maximum humidity: 95 % non-condensing at 40 °C (104 °F)
5.1.5Supply requirements
AC supply voltage:
400 V drive: 380 V to 480 V ±10 %
575 V drive: 500 V to 575 V ±10 %
690 V drive: 500 V to 690 V ±10 %
Number of phases: 3
Maximum supply imbalance: 2 % negative phase sequence (equivalent to 3 % voltage imbalance
between phases).
Frequency range: 45 to 66 Hz
For UL compliance only, the maximum supply symmetrical fault current must be limited to 100 kA
Unidrive M/HS Frame 11E Power Installation Guide77
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Technical data
UL listing information
5.1.6Line reactors
Table 5-9 Input line reactor ratings
Overall
Overall
Model
11403770
11404170INL 4035573057330
11404640INL 4035573057330
11502000INL 6033319358320
11502540INL 6033319358320
11502850INL 6033319358320
11602100INL 6033319358320
11602380INL 6033319358320
11602630INL 6033319358320
Model
number
INL 403L42030
INL 4035573057330
Current Inductance
AμHmmmmmmkg°C °C W
width
(W)
300216264
depth
(D)
Overall
height
(H)
Weight
57
Max
ambient
temp*
4050
Max
ambient
temp**
Maximum
losses
289
* With natural cooling.
** With forced cooling = 1 m/s.
5.1.7Motor requirements
No. of phases: 3
Maximum voltage:
400 V drive: 480 V
575 V drive: 575 V
690 V drive: 690 V
5.1.8 Storage
-40 °C (-40 °F) to +55 °C (122 °F) for long term storage, or to +70 °C (158 °F) for short term
storage.
Storage time is 2 years.
Electrolytic capacitors in any electronic product have a storage period after which they require
reforming or replacing.
The DC bus capacitors have a storage period of 10 years.
The low voltage capacitors on the control supplies typically have a storage period of 2 years and are
thus the limiting factor.
Low voltage capacitors cannot be reformed due to their location in the circuit and thus may require
replacing if the drive is stored for a period of 2 years or greater without power being applied.
It is therefore recommended that drives are powered up for a minimum of 1 hour after every 2 years
of storage. This process allows the drive to be stored for a further 2 years.
78Unidrive M/HS Frame 11E Power Installation Guide
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5.1.9 Altitude
Altitude range: 0 to 3,000 m (9,900 ft), subject to the following conditions:
1,000 m to 3,000 m (3,300 ft to 9,900 ft) above sea level: de-rate the maximum output current
from the specified figure by 1% per 100 m (330 ft) above 1,000 m (3,300 ft)
For example at 3,000 m (9,900 ft) the output current of the drive would have to be de-rated by 20 %.
5.1.10 IP / UL Rating
The drive is rated to IP20 pollution degree 2 (dry, non-conductive contamination only) (NEMA 1).
However, it is possible to configure the drive to achieve IP55 rating (NEMA 12) at the rear of the
heatsink for through-panel mounting (some current derating is required).
The IP rating of a product is a measure of protection against ingress and contact to foreign bodies
and water. It is stated as IP XX, where the two digits (XX) indicate the degree of protection provided
as shown in Table 5-10.
Table 5-10 IP Rating degrees of protection
First digitSecond digit
Protection against foreign bodies and access to
hazardous parts
0 Non-protected0 Non-protected
Protected against solid foreign objects of
1
50 mm ∅ and greater
(back of a hand)
Protected against solid foreign objects of
2
12.5mm ∅ and greater
(finger)
Protected against solid foreign objects of
3
2.5 mm ∅ and greater (tool)
Protected against solid foreign objects of
4
1.0mm ∅ and greater (wire)
5 Dust-protected (wire)5 Protected against water jets
6 Dust-tight (wire)6 Protected against powerful water jets
7-7
8-8
Table 5-11 UL enclosure ratings
UL ratingDescription
Type 1
Type 1 2
Enclosures are intended for indoor use, primarily to provide a degree
of protection against limited amounts of falling dirt.
Enclosures are intended for indoor use, primarily to provide a degree
of protection against dust, falling dirt and dripping non-corrosive
liquids.
Protection against ingress of water
Protected against vertically falling water
1
drops
Protected against vertically falling water
2
drops when enclosure tilted up to 15 °
3 Protected against spraying water
4 Protected against splashing water
Protected against the effects of temporary
immersion in water
Protected against the effects of continuous
immersion in water
Concentrations of corrosive gases must not exceed the levels given in:
•Table A2 of EN 50178:1998
•Class 3C2 of IEC 60721-3-3
This corresponds to the levels typical of urban areas with industrial activities and/or heavy traffic, but
not in the immediate neighborhood of industrial sources with chemical emissions.
Unidrive M/HS Frame 11E Power Installation Guide79
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5.1.12 RoHS compliance
NOTE
The drive meets EU directive 2011/65/EU for RoHS compliance.
5.1.13 Vibration
Maximum recommended continuous vibration level 0.14 g r.m.s. broad-band 5 to 200 Hz.
This is the limit for broad-band (random) vibration. Narrow-band vibration at this level which
coincides with a structural resonance could result in premature failure.
Bump Test
Random Vibration Test
Sinusoidal Vibration Test
Testing in each of three mutually perpendicular axes in turn.
Referenced standard: IEC 60068-2-29: Test Eb:
Severity: 18 g, 6 ms, half sine
No. of Bumps: 600 (100 in each direction of each axis)
Testing in each of three mutually perpendicular axes in turn.
Referenced standard: IEC 60068-2-64: Test Fh:
Severity: 1.0 m²/s³ (0.01 g²/Hz) ASD from 5 to 20 Hz
-3 dB/octave from 20 to 200 Hz
Duration: 30 minutes in each of 3 mutually perpendicular axes.
Testing in each of three mutually perpendicular axes in turn.
Referenced standard: IEC 60068-2-6: Test Fc:
Frequency range: 5 to 500 Hz
Severity: 3.5 mm peak displacement from 5 to 9 Hz
10 m/s² peak acceleration from 9 to 200 Hz
15 m/s² peak acceleration from 200 to 500 Hz
Sweep rate: 1 octave/minute
Duration: 15 minutes in each of 3 mutually perpendicular axes.
EN 61800-5-1:2007, Section 5.2.6.4. referring to IEC 60068-2-6
Frequency range: 10 to 150 Hz
Amplitude: 10 to 57 Hz at 0.075 mm pk
57 to 150 Hz at 1g p
Sweep rate: 1 octave/minute
Duration: 10 sweep cycles per axis in each of 3 mutually perpendicular axes
5.1.14 Starts per hour
By electronic control: unlimited
By interrupting the AC supply: ≤20 (equally spaced)
5.1.15Start up time
This is the time taken from the moment of applying power to the drive, to the drive being ready to run
the motor:
Size 11: 5 s
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5.1.16 Output frequency / speed range
Unidrive Mxxx models:
In all operating modes (Open loop, RFC-A, RFC-S) the maximum output frequency is limited to 550
Hz.
Unidrive HSxx models:
In open loop mode the maximum achievable output frequency is 3,000 Hz.
In RFC-A and RFC-S modes, the maximum achievable output frequency is 1,250Hz.
In RFC-S mode the speed is also limited by the voltage constant (Ke) of the motor unless field
weakening operation is enabled. Ke is a specific constant for the servo motor being used. It can
normally be found on the motor data sheet in V/k rpm (volts per 1,000 rpm).
It is recommended that a minimum ratio of 12:1 is maintained between the switching frequency and
the maximum output frequency to maintain the quality of the output waveform. If this minimum ratio is
exceeded, extra motor losses will result due to the increased harmonic content of the output
waveform.
5.1.17 Accuracy and resolution
Speed:
The absolute frequency and speed accuracy depends on the accuracy of the crystal used with the
drive microprocessor. The accuracy of the crystal is 100 ppm, and so the absolute frequency/speed
accuracy is 100 ppm (0.01 %) of the reference, when a preset speed is used. If an analog input is
used the absolute accuracy is further limited by the absolute accuracy of the analog input.
The following data applies to the drive only; it does not include the performance of the source of the
control signals.
Open loop resolution:
Preset frequency reference: 0.1 Hz
Precision frequency reference: 0.001 Hz
Closed loop resolution
Preset speed reference: 0.1 rpm
Precision speed reference: 0.001 rpm
Analog input 1: 11 bit plus sign
Analog input 2: 11 bit plus sign
Current:
The resolution of the current feedback is 10 bit plus sign.
The heatsink fan generates the majority of the sound pressure level at 1 m produced by the drive. The
heatsink fan is a variable speed fan. The drive controls the speed at which the fan runs based on the
temperature of the heatsink and the drive's thermal model system.
Table 5-12 gives the sound pressure level at 1 m produced by the drive for the heatsink fan running at
the maximum and minimum speeds.
Table 5-12 Acoustic noise data
Max speed
dBA
82.558
Unidrive M/HS Frame 11E Power Installation Guide81
Issue Number: 2
Min speed
dBA
UL listing information
5.1.19 Overall dimensions
WARNING
H Height including surface mounting brackets
W Width
DProjection forward of panel when surface mounted
F Projection forward of panel when through-panel mounted
R Projection rear of panel when through-panel mounted
Table 5-13 Overall drive dimensions
Size
11E
HWD F R
1242 mm
(48.9 in)
310 mm
(12.21 in)
Dimension
313 mm
(12.32 in)
190 mm
(7.48 in)
123 mm
(4.84 in)
5.1.20 Weights
Table 5-14 Overall drive weights
SizeModelkglb
11EAll variants63138.9
5.1.21 Input current, fuse and cable size ratings
The input current is affected by the supply voltage and impedance.
Typical input current
The values of typical input current are given to aid calculations for power flow and power loss.
The values of typical input current are stated for a balanced supply.
Maximum continuous input current
The values of maximum continuous input current are given to aid the selection of cables and fuses.
These values are stated for the worst case condition with the unusual combination of stiff supply with
bad balance. The value stated for the maximum continuous input current would only be seen in one
of the input phases. The current in the other two phases would be significantly lower.
The values of maximum input current are stated for a supply with a 2 % negative phase-sequence
imbalance and rated at the maximum supply fault current given in Table 5-15.
Table 5-15 Supply fault current used to calculate maximum input currents
ModelSymmetrical fault level (kA)
All100
Fuses
The AC supply to the drive must be installed with suitable protection against overload and
short-circuits. Table 5-16 shows the recommended fuse ratings. Failure to observe this
requirement will cause risk of fire.
82Unidrive M/HS Frame 11E Power Installation Guide
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Table 5-16 AC Input current and fuse ratings (400 V)
Model
11403770
11404640
Typical
current
Maximum
continuous
input
AA AAAAA
424
455
502
input
current
449579
492613
539752550550
Maximum
overload
input
current
IEC UL / USA
Nominal Maximum
500500
Table 5-17 AC Input current and fuse ratings (575 V)
Model
11502000
11502850
Typical
current
Maximum
continuous
input
AA AAAAA
240
285
313
input
current
265327
310395
338473
Maximum
overload
input
current
IEC UL / USA
Nominal Maximum
400400gR400400HSJ11502540
Table 5-18 AC Input current and fuse ratings (690 V)
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Technical data
UL listing information
Table 5-19 Cable ratings (400 V)
NOTE
NOTE
Cable size (IEC)
Model
Nominal Max
11403770
114046402 x 2404 x 4/0
InputOutputInputOutput
method
4 x 95
Install
C
2
mm
Nominal Max
2 x 185
Install
method
C
Nominal Max Nominal Max
4 x 3/0
Table 5-20 Cable ratings (575 V)
Model
11502000
11502540
11502850
InputOutputInputOutput
Nominal Max
2 x 70
2 x 95
2 x 120
Cable size (IEC)
method
Install
C
2
mm
Nominal Max
2 x 70
2 x 952 x 4/02 x 4/0
2 x 1202 x 2502 x 250
Install
method
C
Nominal Max Nominal Max
2 x 3/02 x 3/0
Table 5-21 Cable ratings (690 V)
Model
11602100
11602380
11602630
InputOutputInputOutput
Nominal Max
2 x 70
2 x 95
2 x 95
Cable size (IEC)
method
Install
C
2
mm
Nominal Max
Install
method
2 x70
2 x 952 x 4/02 x 4/0
2 x 952 x 2502 x 250
Nominal
2 x 3/02 x 3/0
C
Cable size (UL)
AWG or kcmil
Cable size (UL)
AWG or kcmil
Cable size (UL)
AWG or kcmil
Maxim
Nominal Max
um
2 x 400114041702 x 2404 x 4/0
The cable sizes noted in Table 5-19 to Table 5-21 are typical cable sizes based on
UL508C and IEC60364-5-52:2001. Maximum cable sizes are 2 x 240 mm
kcmil per pole. The user will have to decide what size of cable to use in any given
application based on the local wiring regulations. Use of high temperature cables that are
thinner than those stated in the typical cable chart maybe possible, contact the supplier
of the drive for advice.
Installation method (ref:IEC60364-5-52:2001)
B1 - Separate cables in conduit
B2 - Multicore cable in conduit
C - Multicore cable in free air
Cable sizes are from IEC60364-5-52:2001 table A.52.C with correction factor for 40 °C
ambient of 0.87 (from table A52.14) for cable installation method B2 (multicore cable in
conduit).
Cable size may be reduced if a different installation method is used, or if the ambient
temperature is lower.
84Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
2
or 2 x 400
The recommended cable sizes above are only a guide. The mounting and grouping of
NOTE
cables affects their current-carrying capacity, in some cases smaller cables may be
acceptable but in other cases a larger cable is required to avoid excessive temperature
or voltage drop. Refer to local wiring regulations for the correct size of cables.
A fuse or other protection must be included in all live connections to the AC supply.
Fuse types
The fuse voltage rating must be suitable for the drive supply voltage.
IEC Fuse types
•IEC class gG - Full range breaking capability in general application. Slow acting.
•IEC class gR - Dual rated: semiconductor protection (ultra-fast acting) and cable protection.
•IEC class aR - Semiconductor Protection, fast acting. Provides no protection from slow, small
overloads, so cable must be protected by using a gG fuse or circuit breaker.
•HRC- High Rupturing Capacity – Denotes the ability of the fuse link to interrupt extremely high
fault currents.
North American Fuse Types
•UL class J - Full range breaking capability in general application. Slow acting. Up to 600 V only.
Ferraz HSJ -High speed class J fuses. Dual rated: semiconductor protection (ultra-fast acting) and
cable protection. Up to 600 V only and only from Ferraz.
5.1.22 Maximum motor cable lengths
Table 5-22 Maximum motor cable lengths
Maximum permissible motor cable length
Model
400 V
11403770250 m (820 ft)187 m (614 ft) 125 m (614 ft) 93 m (203 ft)
11404170250 m (820 ft)187 m (614 ft) 125 m (614 ft) 93 m (203 ft)
11404800250 m (820 ft)187 m (614 ft) 125 m (614 ft) 93 m (203 ft)
575 V
11502000250 m (820 ft)187 m (614 ft)
11502540250 m (820 ft)187 m (614 ft)
11503020250 m (820 ft)187 m (614 ft)
690 V
11602100250 m (820 ft)187 m (614 ft)
11602380250 m (820 ft)187 m (614 ft)
11602770250 m (820 ft)187 m (614 ft)
kHz
2
kHz
•Cable lengths in excess of the specified values may be used only when special techniques are
adopted; refer to the supplier of the drive.
•The default switching frequency is 3 kHz for Open-loop and RFC-A and 6 kHz for RFC-S mode.
The maximum cable length is reduced from that shown in Table 5-22 if high capacitance or reduced
diameter motor cables are used. For further information, refer to section 4.10.2 High-capacitance / reduced diameter cables on page 51.
86Unidrive M/HS Frame 11E Power Installation Guide
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5.2.1 Electromagnetic compatibility (EMC)
This is a summary of the EMC performance of the drive. For full details, refer to the EMC Data Sheet
which can be obtained from the supplier of the drive.
Table 5-27 Immunity compliance
StandardType of immunityTest specificationApplicationLevel
IEC61000-4-2
EN61000-4-2:2009
IEC61000-4-3
EN61000-43:2006+A2:2010
IEC61000-4-4
EN61000-4-4:2012
IEC61000-4-5
EN61000-4-5:2014
IEC61000-4-6
EN61000-4-6:2014
IEC61000-4-11
EN61000-4-11:2004
IEC61000-6-1
EN61000-6-1:2007
IEC61000-6-2
EN61000-6-2:2005
IEC61800-3
EN 618003:2004+A1:2012
1
See section Surge immunity of control circuits - long cables and connections outside a building on
page 114 for control ports for possible requirements regarding grounding and external surge
protection
Emission
The drive contains an in-built filter for basic emission control. An additional optional external filter
provides further reduction of emission. The requirements of the following standards are met,
depending on the motor cable length and switching frequency.
Electrostatic
discharge
Radio frequency
radiated field
Fast transient burst
Surges
Conducted radio
frequency
Voltage dips and
interruptions
Generic immunity standard for the residential,
commercial and light - industrial environment
Generic immunity standard for the industrial
environment
Product standard for adjustable speed power drive
systems (immunity requirements)
6 kV contact discharge
8 kV air discharge
10 V/m prior to modulation
80 - 1000 MHz
80 % AM (1 kHz) modulation
5/50 ns 2 kV transient at 5
kHz repetition frequency via
coupling clamp
5/50 ns 2 kV transient at 5
kHz repetition frequency by
direct injection
Common mode 4 kV
1.2/50 μs waveshape
Differential mode
2 kV
1.2/50 μs waveshape
Lines to ground
10V prior to modulation
0.15 - 80 MHz
80 % AM (1 kHz) modulation
-30 % 10 ms
+60 % 100 ms
-60 % 1 s
<-95 % 5 s
Module enclosure
Module enclosure
Control lines
Power lines
AC supply lines:
line to ground
AC supply lines:
line to line
Signal ports to
1
ground
Control and power
lines
AC power ports
Meets immunity requirements for first
and second environments
Unidrive M/HS Frame 11E Power Installation Guide87
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UL listing information
Table 5-28 Size 11E emission compliance
CAUT ION
Motor cable length (m)
Using internal filter:
10 - 50C3
100C3C4
Using external filter:
20C2
100C2C3
23
Switching Frequency (kHz)
468
Key (shown in decreasing order of permitted emission level):
E2REN 61800-3: 2004+A1:2012 second environment, restricted distribution (Additional
measures may be required to prevent interference)
E2UEN 61800-3: 2004+A1:2012 second environment, unrestricted distribution
IIndustrial generic standard EN 61000-6-4:2007+A1:2011 EN 61800-3: 2004+A1:2012 first
environment restricted distribution (The following caution is required by EN 61800-3:
2004+A1:2012)
This is a product of the restricted distribution class according to IEC 61800-3. In a
residential environment this product may cause radio interference in which case the user
may be required to take adequate measures.
RResidential generic standard EN 61000-6-3:2007+A1:2011
EN 61800-3: 2004+A1:2012 first environment unrestricted distribution
EN 61800-3: 2004+A1:2012 defines the following:
•The first environment is one that includes residential premises. It also includes establishments
directly connected without intermediate transformers to a low-voltage power supply network
which supplies buildings used for residential purposes.
•The second environment is one that includes all establishments other than those directly
connected to a low-voltage power supply network which supplies buildings used for residential
purposes.
•Restricted distribution is defined as a mode of sales distribution in which the manufacturer
restricts the supply of equipment to suppliers, customers or users who separately or jointly have
technical competence in the EMC requirements of the application of drives.
88Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
IEC 61800-3 and EN 61800-3: 2004+A1:2012
The 2004 revision of the standard uses different terminology to align the requirements of the
standard better with the EC EMC Directive.
Power drive systems are categorized C1 to C4:
CategoryDefinition
C1Intended for use in the first or second environments
C2
Not a plug-in or movable device, and intended for use in the first environment
only when installed by a professional, or in the second environment
C3Intended for use in the second environment, not the first environment
C4
Intended for use in the second environment in a system rated at over 400 A,
or in a complex system
Note that category 4 is more restrictive than E2R, since the rated current of the PDS must exceed
400 A or the supply voltage exceed 1000 V, for the complete PDS.
Table 5-31 Optional external EMC Filter terminal data
CT part
number
4200-0400
4200-0690
Max cable sizeMax torqueGround stud sizeMax torque
10.5 mm30 N m (22.1 lb ft)M1225 N m
Power
connections
Unidrive M/HS Frame 11E Power Installation Guide89
Issue Number: 2
Ground
connections
UL listing information
6UL listing information
6.1 UL file reference
All products covered by this Guide are UL Listed to both Canadian and US requirements. The UL file
reference is: NMMS/7.E171230.
Products that incorporate the Safe Torque Off function have been investigated by UL. The UL file
reference is: FSPC.E1712304.
6.2Option modules, kits and accessories
All Option Modules, Control Pods and Installation Kits supplied by Emerson Industrial Automation for
use with these drives are UL Listed.
6.3Enclosure ratings
Drives are UL Open Type as supplied.
Drives fitted with a conduit box are UL Type 1.
Drives that are capable of through-hole mounting are UL Type 12 when installed with the high-IP
insert (where provided), and the Type 12 sealing kit to prevent ingress of dust and water.
Remote Keypads are UL Type 12.
6.4Mounting
Drives can be mounted directly onto a vertical surface. This is known as 'surface' or 'standard'
mounting. Refer to section 3.4.2 Surface mounting on page 24 for further information.
Drives can be installed side by side with recommended spacing between them. This is known as
'bookcase' mounting. Refer to section 3.6.1 Enclosure sizing on page 27 for further information.
Some drives can be mounted on their side. This is known as 'tile' mounting. Suitable tile mounting
kits are available from Emerson Industrial Automation.
Drives fitted with a conduit box can be mounted directly onto a wall or other vertical surface without
additional protection. Suitable conduit boxes are available from Emerson Industrial Automation.
Some drives may be through-hole mounted. Mounting brackets and sealing kits are available from
Emerson Industrial Automation. Refer to section 3.4.3 Through-panel mounting on page 25 for
further information.
Remote Keypads can be mounted on the outside of a UL Type 12 enclosure. A sealing and mounting
kit is provided with the keypad.
6.5Environment
Drives must be installed in a Pollution Degree 2 environment or better (dry, non-conductive pollution
only).
All drives are capable of delivering full rated output current at surrounding air temperatures up to
40 °C
Drives may be operated in surrounding air temperatures up to 50 °C or 55 °C at de-rated current,
depending on the model number. Refer to Chapter 5 Technical data on page 73.
90Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
6.6Electrical Installation
TERMINAL TORQUE
Terminals must be tightened to the rated torque as specified in the Installation Instructions. Refer to
section 3.11 Terminal size and torque settings on page 35 for further information.
WIRING TERMINALS
Drives must be installed using cables rated for 75 °C operation, copper wire only.
UL Listed closed-loop connectors sized according to the field wiring shall be used for all field wiring
connections. Refer to section 4.2 Ground connections on page 43 for further information.
BRANCH CIRCUIT PROTECTION
The fuses and circuit breakers required for branch circuit protection are contained in the Installation
Instructions. Refer to section 4.9 Ratings on page 50.
OPENING OF BRANCH CIRCUIT
Opening of the branch-circuit protective device may be an indication that a fault has been
interrupted. To reduce the risk of fire or electric shock, the equipment should be examined and
replaced if damaged. If burnout of the current element of an overload relay occurs, the complete
overload relay must be replaced.
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit
protection must be provided in accordance with the National Electrical Code and any additional local
"codes".
6.7Motor overload protection and thermal memory retention
All drives incorporate internal overload protection for the motor load that does not require the use of
an external or remote overload protection device.
The protection level is adjustable and the method of adjustment is provided in the Control User Guide. Maximum current overload is dependent on the values entered into the current limit
parameters (motoring current limit, regenerative current limit and symmetrical current limit entered as
percentage) and the motor rated current parameter (entered in amperes).
The duration of the overload is dependent on motor thermal time constant .The time contact is
programmable. The default overload protection is typically set to 150 % of the motor rated current for
60 seconds.
The drives are provided with user terminals that can be connected to a motor thermistor to protect
the motor from high temperature, in the event of a motor cooling fan failure.
The method of adjustment of the overload protection is provided in the Installation Instructions
shipped with the product.
All models are provided with thermal memory retention.
Safety informationProduct informationMechanical installationElectrical installationTechnical data
Unidrive M/HS Frame 11E Power Installation Guide91
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UL listing information
6.8Electrical supply
The drives are suitable for use on a circuit capable of delivering not more than 100,000 RMS
Symmetrical Amperes, at rated voltage when protected by fuses as specified in the Installation
Instructions.
Some smaller drives are suitable for use on a circuit capable of delivering not more than 10,000 RMS
Symmetrical Amperes, at rated voltage when protected by circuit breakers as specified in the
Installation Instructions.
6.9External Class 2 supply
The external power supply used to power the 24 V control circuit shall be marked: "UL Class 2". The
power supply voltage shall not exceed 24 Vdc.
6.10Requirement for Transient Surge Suppression
This requirement applies to drives with rated input voltage = 575 V, Frame Size 7 only.
TRANSIENT SURGE SUPPRESSION SHALL BE INSTALLED ON THE LINE SIDE OF THIS
EQUIPMENT AND SHALL BE RATED 575 Vac (PHASE TO GROUND), 575 Vac (PHASE TO
PHASE), SUITABLE FOR OVERVOLTAGE CATEGORY III, AND SHALL PROVIDE PROTECTION
FOR A RATED IMPULSE VOLTAGE TO WITHSTAND VOLTAGE PEAK OF 6 kV AND A CLAMPING
VOLTAGE OF MAXIMUM 2400 V.
6.11Group Installation and Modular Drive Systems
Drives with DC+ and DC- supply connections, with 230 V or 480 V supply voltage rating, are UL
approved for use in modular drive systems as inverters when supplied by the converter sections:
Mentor MP25A, 45A, 75A, 105A, 155A or 210A range manufactured by Emerson Industrial
Automation.
Alternatively, the inverters may be supplied by converters from the Unidrive-M range manufactured
by Emerson Industrial Automation.
In these applications the inverters are required to be additionally protected by supplemental fuses.
Drives have not been evaluated for other Group Installation applications, for example where a single
inverter is wired directly to two or more motors. In these applications, additional thermal overload
protection is needed. Contact Emerson Industrial Automation for further details.
92Unidrive M/HS Frame 11E Power Installation Guide
Issue Number: 2
0478-0266-02
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