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.
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
EN 61000-6-2:2005
EN 61000-6-4:2007
EN 61000-3-2:2006
EN 61000-3-3:2008
EN 61000-3-2: 2006 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 - RoHS 2011/65/EU, the Low
Voltage Directive - LVD 2006/95/EC and the Electromagnetic Compatibility Directive - EMC 2004/108/EC.
InterpretationNomenclature aaaa - bbc ddddde
M = Manufacturing Automation, E = Elevator, F = Flow, H = HVAC, CSD =
Compressor, EVC = Emerson Variable Scroll, HS = High Speed
A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier +
Inverter (external choke), N = 18P Rectifier + Inverter, T = 12P Rectifier +
Inverter
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. 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. Refer to the Product Documentation. An EMC data sheet is also available giving
detailed EMC information.
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
5
Declaration of Conformity
(including 2006 Machinery Directive)
Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
This declaration applies to the Unidrive M/HS product range comprising model numbers listed 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 EMC Directive 2014/
108/EC.
EC type examination has been carried out by the following notified body:
TUV Rheinland Industrie Service GmbH
Am Grauen Stein
D-51105 Köln
Germany
Notified body identification number: 0035
The harmonized standards used are shown below:
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
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
EN 61800-3: 2004
EN 62061:2005
InterpretationNomenclature aaaa - bbc ddddde
M = Manufacturing Automation, E = Elevator, F = Flow, H = HVAC, CSD =
Compressor, EVC = Emerson Variable Scroll, HS = High Speed
A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier +
Inverter (external choke), N = 18P Rectifier + Inverter, T = 12P Rectifier +
Inverter
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
6
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Person authorised to complete the technical file:
G Williams
Vice President, Technology
Date: 30th November 2015
C Hargis
Chief 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. It is the
responsibility of the installer to ensure that the design of the complete machine, including its safety-related
control system, is carried out in accordance with the requirements of the Machinery Directive and any
other relevant legislation. The use of a safety-related drive in itself does not ensure the safety of the
machine.
Compliance with safety and EMC regulations depends upon installing and configuring drives correctly,
including using the specified input filters. The drive must be installed only by professional installers who
are familiar with requirements for safety and EMC. The assembler is responsible for ensuring that the end
product or system complies with all relevant laws in the country where it is to be used. For more
information regarding Safe Torque Off, refer to the Control User Guide.
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
7
1Safety information
WARNING
CAUTION
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 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.
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.
8
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
1.5Access
Drive access must be restricted to authorized personnel only. Safety regulations which apply at the
place of use must be complied with.
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 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:
2006/42/EC: Safety of machinery.
2004/108/EC: Electromagnetic Compatibility.
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.
Safety information
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 3 and 4 Power Installation Guide
Issue Number: 3
9
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.
10
Unidrive M/HS Frame 3 and 4 Power Installation Guide
A - ACinACout(withinternalchoke)
D-DCin ACout(Inverter)
C- ACinDCout(Rectifier)
E- ACin ACout(withoutinternalchoke)
T - ACinACout(12P rectifier plus inverter)
2.1Introduction
This guide provides the information necessary to install the following drive models:
Unidrive M600 to M702 frame 3 to 4
Unidrive HS70 to HS72 frame 3 to 4
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 numbers for the Unidrive M/HS product range are formed as illustrated below:
Figure 2-1 Model number
Safety information
Product information
Mechanical installationElectrical installationTechnical dataUL listing information
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
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 1990 (B in 1991, C in 1992
etc).
Example: A date code of Y28 would correspond to week 28 of year 2015.
12
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
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 B2 (ref: IEC603645-52:2001) unless otherwise specified, and are provided as a guide only. Ensure cables
used suit local wiring regulations.
The continuous output current ratings given below are for maximum 40 °C (104 °F), 1000 m altitude
and 3 kHz switching frequency. Derating is required for higher switching frequencies, ambient
temperature >40 °C (104 °F) and high altitude. For further information, refer to Chapter 5 Technical data on page 76.
Table 2-1 200 V drive ratings, cable sizes and fuse ratings
Refer to Chapter 5 Technical data on page 76 for maximum fuse rating, maximum cable
size and peak currents.
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Max.
cont.
output
current
Nom
power
@
400 V
Motor
power
@
460 V
13
Table 2-3 Protective ground cable ratings
NOTE
Input phase
conductor size
≤ 10 mm
2
> 10 mm2 and ≤ 16 mm
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
> 16 mm2 and ≤ 35 mm216 mm
> 35 mm
2
Half of the cross-sectional area of the input phase conductor
2
Minimum ground conductor size
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 2-4 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 s110 % for 9 s110 % for 165 s 110 % for 9 s
200 % for 28 s200 % for 3 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 3 kHz switching frequency. Derating is required for higher switching frequencies,
ambient temperatures >40 °C (104 °F) and higher altitude. For derating information, refer to the
Chapter 5 Technical data on page 76.
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.
14
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
2.5Drive features
1
2
3
4
6
5
7
1
3
4
6
5
7
Figure 2-3 Features of the drive power section
Key
1. Braking terminal2. Internal EMC filter3. DC bus +4. DC bus -
5. Motor connections6. AC supply connections7. Ground connections
Safety information
Product information
Mechanical installationElectrical installationTechnical dataUL listing information
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
15
2.6Items supplied with the drive
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
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
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 3 and 4 Power Installation Guide
Issue Number: 3
17
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 3.8
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
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 3.5
3.2.4Electrical safety
The installation must be safe under normal and fault conditions. Electrical installation instructions are
given in Chapter 4
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.
Enclosing standard drive for high environmental protection
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.
Enclosure for standard drives
Electrical installation on page 45
.
on page 32.
on page 27.
18
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Figure 3-1 Fire enclosure bottom layout
Drive
5
o
5
o
Notles s
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 4.12
(Electromagnetic compatibility) on page 63
.
EMC
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 3 and 4 Power Installation Guide
Issue Number: 3
19
3.3Terminal cover removal
WARNING
WARNING
3
DC/Braking
terminalcover
Control/ AC/
Motorterminalcover
4
Control/ AC/
Motorterminalcover
DC/Braking
terminalcover
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.
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 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.
3.3.1Removing the terminal covers
Figure 3-3 Location and identification of terminal covers (size 3 to 4)
20
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Figure 3-4 Removing the size 3 terminal covers
1
2
1. Control / AC / Motor terminal cover
2. DC / Braking terminal cover
The Control / AC / Motor terminal cover must be removed before removal of the DC / Braking
terminal cover. When replacing the terminal covers, the screws should be tightened to a maximum
torque of 1 N m (0.7 lb ft).
Figure 3-5 Removing the size 4 terminal covers
Safety informationProduct information
Mechanical installation
Electrical installationTechnical dataUL listing information
1. Control / AC / Motor terminal cover
2. DC / Braking terminal cover
The Control / AC / Motor terminal cover must be removed before removal of the DC / Braking
terminal cover. When replacing the terminal covers, the screws should be tightened to a maximum
torque of 1 N m (0.7 lb ft).
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
21
3.3.2Removing the finger-guard and DC terminal cover break-outs
Figure 3-6 Removing the finger-guard break-outs
Place finger-guard on a flat solid surface and hit relevant break-outs with hammer as shown (1).
Continue until all required break-outs are removed (2). Remove any flash / sharp edges once the
break-outs are removed.
Figure 3-7 Removing the size 3 and 4 DC terminal cover break-outs
Grasp the DC terminal cover break-outs with pliers as shown (1) and pull down in the direction shown
to remove. Continue until all required break-outs are removed (2). Remove any flash / sharp edges
once the break-outs are removed. Use the DC terminal cover grommets supplied in the accessory
box (Table 2-5
22
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Parts supplied with the drive
on page 16) to maintain the seal at the top of the drive.
Issue Number: 3
3.4Dimensions and mounting methods
WARNING
H
H1
H2
W
D
Drive sizes 3 and 4 can be surface, through-panel or tile mounted using the appropriate brackets.
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.
3.4.1Drive dimensions
Figure 3-8 Drive dimensions (size 3 illustrated)
Safety informationProduct information
Mechanical installation
Electrical installationTechnical dataUL listing information
Size
H1H2WD
mminmminmminmmin
338215.04
439115.391244.88
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
36514.37
833.27
2007.87
23
3.4.2Surface mounting
6.0mm
(0.24in)
73.0mm(2.87in)
Æ
5.5mm
(0.22in)
370mm
(14.57in)
3
375mm
(14.76in)
8mm
(0.32in)
4
Æ
6.5mm
(0.26in)
x4holes
9mm
(0.35in)
53mm
(2.09in)
53mm
(2.09in)
106mm
(4.17in)
40mm
(1.58in)
Figure 3-9 Surface mounting dimensions
Surface mounting size 3
Each mounting bracket contains 5 mounting slots / holes, the outer holes (5.2 mm) x 2 should be
used for mounting the drive to the backplate as this allows the heatsink fan to be replaced without
removing the drive from the backplate. The inner slots / holes (6.2 mm) x 3 are used for Unidrive SP
size 1 retrofit applications.
Surface mounting size 4
The outer holes in the mounting bracket (6.5 mm) x 2 are to be used for surface mounting.
24
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
3.4.3Through-panel mounting
WARNING
4
17mm
(0.67in)
68.5mm
(2.70in)
68.5mm
(2.70in)
117mm(4.61in)
168mm(6.61in)
58.5mm
(2.30in)
58.5mm
(2.30in)
4
106mm(4.17in)
97mm(3.82in)
36.5mm
(1.44in)
Æ5.20mm(0.21in)
x8holes
73mm(2.87in)
36.5mm
(1.44in)
15mm
(0.59in)
129mm(5.08in)
26mm(1.02in)
168mm(6.61in)
360mm(14.17in)
389mm(15.32in)
26mm(1.02in)
Radius1.0mm(0.04in)
38mm
(1.50in)
38mm
(1.50in)
76mm(2.99in)
3
48.5mm
(1.91in)
48.5mm
(1.91in)
Radius1.0mm
(0.04in)
The drive can be through-panel mounted using the appropriate brackets, see section 3.8
standard drive for high environmental protection
on page 32 for further details.
The through-panel mounting kit is not supplied with the drive and can be purchased separately,
below are the relevant part numbers:
SizeCT part number
33470-0053
43470-0056
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.
Figure 3-10 Through-panel mounting dimensions
Enclosing
Safety informationProduct information
Mechanical installation
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Electrical installationTechnical dataUL listing information
25
3.4.4Mounting brackets
NOTE
Table 3-1 Mounting brackets
Frame
size
SurfaceQtyThrough-panel*Qty
x 2
3
Outer hole size: 5.2 mm (0.20 in)
Centre hole / slot size: 6.2 mm (0.24 in)
4
Hole size: 6.5 mm (0.26 in)
x 2
x 2
Hole size: 5.2 mm (0.21 in)
Hole size: 5.2 mm (0.21 in)
* A gasket is supplied in the through-panel mounting kit, see section 3.8
high environmental protection
on page 32 for further details.
A retrofit kit is available for Unidrive M/HS size 4 that allows mounting of the drive in
applications previously using Unidrive SP size 2, the part number of this kit is 3470-0062.
A similar kit is not necessary for Unidrive M/HS size 3 because it has the same mounting
hole positions as Unidrive SP size 1.
x 1
x 2
x 1
Enclosing standard drive for
26
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
3.4.5Tile mounting
Enclosure
A
Drive sizes 3 to 4 can be tile mounted where limited mounting space is available. The drive is
mounted sideways with the side panel against the mounting surface as shown in Figure 3-11. The tile
mounting kit is not supplied with the drive, it can be purchased separately using the following part
numbers:
SizeCT part number
33470-0049
43470-0060
Figure 3-11 Tile mounting
Safety informationProduct information
Mechanical installation
3.5Enclosure for standard drives
Figure 3-12 Recommended spacing between the drives
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Electrical installationTechnical dataUL listing information
Spacing required between the drives (without high IP insert)
Drive Size
3
4
40°C 50°C*
Spacing (A)
0 mm (0.00 in)
Maximum permissible continuous output current @ 50 °C
on page 79.
When through-panel mounted, ideally drives should be spaced 30 mm (1.18 in) to
maximize panel stiffness.
3.5.1Enclosure layout
Please observe the clearances in the diagram below taking into account any appropriate notes for
other devices / auxiliary equipment when planning the installation.
Figure 3-13 Enclosure layout
28
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
Table 3-3 Spacing required between drive / enclosure and drive / EMC filter
NOTE
A
e
P
k T
in tTex t
–()
-----------------------------------
=
Drive SizeSpacing (B)
30 mm (0.00 in)
430 mm (1.18 in)
For EMC compliance:
1. When using an external EMC filter, one filter is required for each drive.
2. Power cabling must be at least 100 mm (4 in) from the drive in all directions
3.5.2Enclosure sizing
1. Add the dissipation figures from section 5.1.3
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
5.2.1
EMC filter ratings
on page 96 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
Power dissipation
Aefor the enclosure from:
on page 80 for each drive that is
Safety informationProduct information
Mechanical installation
Electrical installationTechnical dataUL listing information
Where:
A
Unobstructed surface area in m2 (1 m2 = 10.9 ft2)
e
T
Maximum expected temperature in
ext
T
Maximum permissible temperature in oC
int
P
Power in Watts dissipated by
k
Heat transmission coefficient of the enclosure material in W/m2/oC
o
C
outside
all
heat sources in the enclosure
the enclosure
inside
the enclosure
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
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
29
Power dissipation for the drives and the external EMC filters can be obtained from
The enclosure is to be made from painted 2 mm (0.079 in) sheet steel having a heat
transmission coefficient of 5.5 W/m2/oC. Only the top, front, and two sides of the
enclosure are free to dissipate heat.
The value of 5.5 W/m2/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.
Figure 3-14 Enclosure having front, sides and top panels free to dissipate heat
Insert the following values:
T
40 °C
int
T
30 °C
ext
k
5.5
P
392.4 W
The minimum required heat conducting area is then:
= 7.135 m2 (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
30
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
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