Control Techniques 0453-0016-06 User manual

www.controltechniques.com
EF
Installation Guide
M’Ax
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Compact, high-performance, single-axis servo
amplifier for brushless AC servo motors
Part Number: 0453-0016-06
Issue Number: 6

General information
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 drive with the motor.
The contents of this Installation 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
Installation Guide, without notice.
All rights reserved. No parts of this Installation Guide may be reproduced or transmitted in any form
or by any means, electrical or mechanical including photocopying, recording or by any information-
storage or retrieval system, without permission in writing from the publisher.
Important...
Servo-amplifier software version
This product is supplied with the latest version of user-interface and machine-control software. If this
product is to be used with other Control Techniques servo amplifiers in an existing system, there may
be some differences between their software and the software in this product. These differences may
cause a difference in functions. This may also apply to servo amplifiers returned from a Control
Techniques Service Centre.
If there is any doubt, contact a Control Techniques Drive Centre.
Copyright © January 2003 Control Techniques Drives Ltd
Issue: 6

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M’Ax Installation Guide
Issue Number: 6 www.controltechniques.com
Contents
1 Safety Information .................................1
1.1 Warnings, Cautions and Notes .............................1
1.2 Electrical safety - general warning ........................1
1.3 System design ......................................................1
1.4 Environmental limits ..............................................1
1.5 Compliance with regulations .................................1
1.6 Safety of personnel ...............................................1
1.7 Risk analysis .........................................................1
1.8 Motor .....................................................................1
1.9 Adjustment of parameters .....................................1
2 Installing the drive ................................2
2.1 Installation considerations .....................................2
2.2 Model sizes and versions ......................................2
2.3 AC supply protection .............................................2
2.4 AC supply disturbances - use of line reactors .......3
2.5 Power cables ........................................................3
2.6 Signal cables and connectors ...............................5
2.7 RJ45 connectors and cables .................................6
2.8 SLM connector ......................................................7
2.9 D-type connectors .................................................7
2.10 Method of mounting ..............................................7
2.11 Output current, Ambient temperature, Heat
dissipation, De-rating ............................................7
2.12 Thermal protection ................................................8
2.13 When to use a braking resistor .............................8
2.14 Braking resistor data .............................................8
2.15 Braking resistor precautions .................................9
2.16 Thermal protection of the braking resistor ............9
2.17 Braking-resistor example calculations ..................9
2.18 Minimum permissible deceleration time ..............10
2.19 Power rating of the braking resistor ....................10
2.20 Value of the braking resistor ...............................11
2.21 Disabling protection of the internal braking
resistor ................................................................11
2.22 Current setting for a thermal overload protection
relay ....................................................................11
2.23 Enclosure layout .................................................11
2.24 Clearances for the signal cables .........................12
2.25 Enclosure calculations for heat removal .............13
2.26 Mounting the drive ..............................................15
2.27 Attaching the drive to the back-plate ...................16
2.28 Precautions for making power connections ........17
2.29 Terminal sizes and tightening torques ................17
2.30 Method of connecting the power cables .............18
2.31 Circuit diagrams for the power connections ........19
2.32 EMC emission standards - compliance
information ..........................................................21
2.33 EMC emission standards - instructions ...............21
2.34 Clearances from the RFI filter and AC supply
cables ..................................................................22
2.35 Additional ground connections for the signal
cables ..................................................................22
2.36 Bonding the cable shield to the motor frame ......24
Appendix A UL Listing Information ...........25
A.1 AC supply specification .......................................25
A.2 Maximum continuous output current ...................25
Appendix B Data ..........................................26
B.1 M’Ax Data ...........................................................26
B.2 Optional RFI filter data ........................................28
Index ..............................................................29

Declaration of Conformity
Control Techniques
The Gro
Newtown
Powys
UK
SY16 3BE
The servo drive product M'Ax, model numbers as listed above, has been designed and manufactured in accordance with the
following European harmonised, national and international standards:
These products comply with the Low Voltage Directive 73/23/EEC and the CE Marking Directive
93/68/EEC.
This electronic Drive product is intended to be used with an appropriate motor, controller,
electrical protection components and other equipment to form a complete end product or
system. It must only be installed by a professional assembler who is familiar with
requirements for safety and electromagnetic compatibility ("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 manual or EMC data sheet for further
information on EMC standards complied with by the product, and guidelines for installation.
MAX403SL MAX406SL MAX409SL MAX412SL
MAX403AN MAX406AN MAX409AN MAX412AN
EN60249 Base materials for printed circuits
IEC326-1 Printed boards: general information for the specification writer
IEC326-5 Printed boards: specification for single- and double-sided printed boards with
plated-through holes
IEC326-6 Printed boards: specification for multilayer printed boards
IEC664-1 Insulation co-ordination for equipment within low-voltage systems: principles,
requirements and tests
EN60529 Degrees of protection provided by enclosures (IP code)
UL94 Flammability rating of plastic materials
UL508C Standard for power conversion equipment
W. Drury
Executive VP Technology
Newtown
Date: 27 March 2001.

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M’Ax Installation Guide 1
Issue Number: 6 www.controltechniques.com
1 Safety Information
1.1 Warnings, Cautions and Notes
AWarning contains information which is essential for
avoiding a safety hazard.
ACaution contains information which is necessary for
avoiding a risk of damage to the product or other equipment.
ANote contains information which helps to ensure correct
operation of the product.
1.2 Electrical 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 Installation
Guide, and the accompanying User Guide.
The installation must comply with all relevant safety legislation in the
country of use.
1.3 System design
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 voltage 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 and
maintenance must be carried out by personnel who have the necessary
training andexperience. They mustread this safety information and this
Installation Guide carefully.
To ensure mechanical safety, additional safety devices such as electro-
mechanical interlocks may be required. The drive must not be used in a
safety critical application without additional high integrity protection
against hazards arising from a malfunction.
1.4 Environmental limits
Instructions in this User Guide regarding transport, storage, installation
and use of the drive must be complied with, including the specified
environmental limits. The drive must not be subjected to excessive
physical force.
1.5 Compliance 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 earth (ground) connections.
This Installation 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:
• 97/37/EC: Safety of machinery.
• 89/336/EEC: Electromagnetic Compatibility.
1.6 Safety of personnel
The STOP function of the drive does not remove dangerous voltages
from the output of the drive or from any external option unit.
The STOP and START controls or electrical inputs of the drive must
not be relied upon to ensure safety of personnel. If a safety hazard
could exist from unexpected starting of the drive, an interlock that
electrically isolates the drive from the AC supply must be installed
to prevent the motor being inadvertently started.
Careful consideration must be given to the functions of the drive which
might result in a hazard, either through their intended functions or
through incorrect operation due to a fault (e.g. stop/start, forward/
reverse, maximum speed).
Under certain conditions, the drive can suddenly discontinue control of
the motor. If the load on the motor could cause the motor speed to be
increased (e.g. in hoists and cranes), a separate method of braking and
stopping the motor must be used (e.g. a mechanical brake).
Before connecting the AC supply to the drive, it is important that you
understand the operating controls and their operation. If in doubt, do not
adjust the drive. Damage may occur, or lives be put at sisk. Carefully
follow the instructions in this Installation Guide.
Before making adjustments to the drive, ensure all personnel in the area
are warned. Make notes of all adjustments that are made.
1.7 Risk analysis
In any application where a malfunction of the drive could lead to
damage, loss or injury, a risk analysis must be carried out, and where
necessary, further measures taken to reduce the risk. This would
normally be an appropriate form of independent safety back-up system
using simple electro-mechanical components.
1.8 Motor
Ensure the motor is installed in accordance with the manufacturer’s
recommendations.
Servo motors are designed to operate at elevated temperatures which
may reach 100oC. Where necessary, precautions to prevent human
contact should be taken.
1.9 Adjustment of parameters
Some parameters have a profound effect on the operation of the drive.
These parameters must not be adjusted without careful consideration of
the impact that would be made on the controlled system. Measures must
be taken to prevent unwanted changes from being made, e.g. due to
error or tampering.
WARNING
CAUTION
NOTE

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2M’AxInstallationGuide
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2 Installing the drive
2.1 Installation considerations
Adhere to 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.
Motor voltage
The motor must be suitable for use with a M’Ax drive and
its required supply voltage.
Competence of the installer
The drive must be installed only 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.
Flash/insulation testing
The drive and RFI filter have internal electrical
components connected between the AC-supply phases
and ground. In order to avoid damaging these
components when flash or insulation testing the AC-
supply circuit and/or motor circuit, first disconnect the
drive completely from the circuit to be tested.
All imperial measurements (in feet and inches) are an
approximation of their metric translations.
Authorised access
Only authorised, trained service personnel should be allowed access to
the drive.
Installation in an enclosure
The drive must be protected against water, condensation and electrically
conductive contamination.
The drive has ingress protection rated at IP20 (in accordance with
IEC60529).
UL listing is valid when the drive is installed in a type 1 enclosure as
defined in UL50.
Fire enclosure
The drive case is not classified as a fire enclosure. When this protection
is required, the drive should be installed in a fire enclosure.
Hazardous areas
The drive not be located in a classified hazardous area unless it is
installed in an approved enclosure and the installation is certified.
Environmental
See Appendix A for UL-listing information.
See Appendix B Data for environmental requirements.
If condensation is likely to occur when the drive is not in use, an anti-
condensation heater must be installed. This heater must be switched off
when the drive is in use; automatic switching is recommended.
If the drive is to be mounted directly above any heat-generating
equipment (such as another drive), the maximum temperature of the air
immediately below the drive should be taken as the ambient temperature
for the drive.
Electromagnetic compatibility
The drive contains powerful electronic circuits which can cause
electromagnetic interference. The information and instructions in this
chapter include routine EMC precautions that will minimise the risk of
disturbance to typical industrial control equipment. These include
installing the drive in a metal enclosure as well as careful attention to the
layout of the connecting cables.
Additional precautions must be taken if any of the following apply:
• Strict compliance with emission standards is required
• It is known that electromagnetically sensitive equipment, such as
radio receivers, is located nearby
• Thedriveistobeoperatedinaresidentialenvironment
The information and instructions relating to these additional precautions
are contained in the EMC emission standards sections later in this
chapter. These precautions include installing an RFI filter in the AC
supply to each drive and additional attention paid to cables and
grounding.
2.2 Model sizes and versions
Table 2-1 Model sizes, model numbers and current ratings
Table 2-2 Versions
AC supply requirements
380V to 480V ±10%
3-phase
47.5 to 63Hz
Maximum supply imbalance: 2% negative phase sequence (equivalent
to 3% voltage imbalance between phases)
2.3 AC supply protection
gThe AC supply to the drive must be fitted with suitable
protection against overload and short-circuits. Table 2-3
shows recommended fuse ratings. Failure to observe
this recommendation will cause a risk of fire.
The AC supply to the drive must have a sufficiently low
impedance path to ground so that a ground fault would
cause the AC supply protection to operate.
Include a fuse of the specified rating in each phase of the AC supply.
The use of the following types of fuse is recommended:
• Europe: Type gG HRC industrial fuses to IEC 60269 (BS88)
•USA:CC600VAC
WARNING
CAUTION
WARNING
CAUTION
CAUTION
Model size Model
Output current
Maximum
continuous
Maximum
overload
(2s max.)
M’Ax403
M’Ax406
M’Ax409
M’Ax412
3.5 A
6.5 A
9.5 A
12.5 A
7.0 A
13.0 A
19 A
25 A
Suffix Functionality
_SL
(eg. M’Ax 403_SL) Standard-precision analog input No display and keypad
_AN
(eg. M’Ax 403_AN) High-precision analog input Display and keypad
WARNING
WARNING

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M’Ax Installation Guide 3
Issue Number: 6 www.controltechniques.com
An MCB or MCCB having the correct thermal and magnetic trip ratings
may be used in place of fuses, on condition the fault-current clearing
capacity is sufficient for the installation.
UL listing is dependent on the use of the correct type of UL-listed
fuse, and applies when the symmetrical short-circuit current does
not exceed 5kA. Refer to Appendix A UL Listing Information.
Table 2-3 Fuse ratings
2.4 AC supply disturbances - use of line
reactors
When a drive is connected to an AC supply which is subject to severe
disturbances - for example, if any of the following conditions apply...
• Capacity exceeds 200kVA
• Fault current exceeds 5kA
• Power-factor correction equipment is connected close to the drive
• Large DC drives having no or ineffective line reactors are connected
to the supply
• Direct-on-line started motor(s) are connected to the supply and,
when any ofthese motors are started, a dip is produced in excess of
20% of the actual supply voltage
... excessive peak current may flow in the input power circuit of the drive.
This may cause nuisance tripping or, in extreme cases, failure of the
drive.
A line reactor should then be connected in each phase of the supply to
eachdrive. Line reactor(s)add the required impedance to the AC supply
in order to reduce current transients to a level that can be tolerated by
the drive.
Three individual reactors, or a single three-phase reactor should be
used. Each drive must have its own reactor(s).
RFI filters (for EMC purposes) do not give adequate
protection against these conditions.
Table 2-4 Typical line-reactor values
Current ratings
Continuous rms: Not less than the continuous input current rating of
the drive
Repetitive max rms:Not less than 4 x continuous input current rating of
the drive (to avoid magnetic saturation)
2.5 Power cables
Wiring must be in accordance with local regulations and
codes of practice. The table below shows typical PVC
cable sizes for power input and output wiring. In the
event of a conflict, local regulations prevail.
The cable sizes recommended in Table 2-5 are in accordance with
EN60204-1; installation method: B2 - one loaded cable in conduit or
trunking attached to a wall.
Table 2-5 Power cable sizes, metric
The cable sizes recommended in Table 2-6 are in accordance with
UL508C; installation method: one loaded three phase cable in conduit
Table 2-6 Power cable sizes, imperial
This assumes 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.
Ground conductors
A ground conductor can be included in the motor and braking resistor
cables, or a separate wire external to these cables can be used.
Motor cable
Most cables have an insulating jacket between the cores and the armour
or shield; these cables have a low capacitance. When using a cable of
this type, observe the recommended maximum lengths stated in
Table 2-7 .
Table 2-7 Maximum cable lengths
* Cable lengths in excess of the specified values may be used only when
special techniques are adopted; refer to the supplier of the drive.
Cable capacitance
High-capacitance cables tend not to have an insulating jacket between
the cores and the shield or armour. If a cable of this type is used, the
maximum cable length is half the figure quoted in Table 2-7 .
For identification, see Figure 2-1.
Model Fuse rating
M’Ax 403 10A
M’Ax 406 15A
M’Ax 409 20A
M’Ax 412 20A
Model Value Part no
M’Ax 403 2mH 4402-0227
M’Ax 406 2mH 4402-0227
M’Ax 409 1mH 4402-0228
M’Ax 412 1mH 4402-0228
NOTE
CAUTION
Model Cable size
Input cable Output cable
M’Ax403 1.5mm21.0mm2
M’Ax406 2.5mm21.0mm2
M’Ax409 4.0mm21.5mm2
M’Ax412 4.0mm22.5mm2
Model Cable size
Input cable Output cable
M’Ax403 16 AWG 18 AWG
M’Ax406 14 AWG 16 AWG
M’Ax409 12 AWG 14 AWG
M’Ax412 12 AWG 14 AWG
Model Maximum cable length *
mft
M’Ax 403 50 165
M’Ax 406 50 165
M’Ax 409 50 165
M’Ax 412 50 165
WARNING
NOTE

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4M’AxInstallationGuide
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Figure 2-1 Cable construction influencing the capacitance
Parallel connection of DC buses
When a number of drives are used in a system, it is possible to connect
their DC buses in parallel in order to allow energy sharing, especially
when one or more motors are being braked. Operation in this manner is
not covered by this Installation Guide; cable sizes and other information
can be obtaine from the supplier of the drive.
Ordering motor cables
Cables of the required lengths and type of sheath, and fitted with
appropriate terminations to suit the drive and CT-Dynamics SL motors,
are supplied by Control Techniques Dynamics Ltd. For ordering, create
the required order code (see below) and contact the supplier of thedrive.
The order code is constructed as follows:
See opposite for the details of the code.
The values stated are for 40oC ambient free air applications.
Information should only be used for reference.
Example
PSBAM010
10m Unimotor connection to ferrules power cable for a dynamic
application
1 Number of conductors
PS 3-phase + ground
PB 3-phase + ground
+ motor-brake control
2 Type of sheath
BPUR
Use for dynamic applications (motor mounted on a moving
structure) – increased oil resistance
3 Conductor size (phases and ground) Current rating
G1.5mm216A
A2.5mm222A
B4.0mm230A
C6.0mm239A
D10.0mm258A
Normal capacitance
Shield or armour
separated from the cores
High capacitance
Shield or armour close
to the cores
NOTE
4 Cable terminations
For connection to the drive For connection to the motor
ATermination ferrules 6-way size-1 plug
CTermination ferrules Termination ferrules
KTermination ferrules 6-way size-1.5 plug
LCut ends 6-way size-1.5 plug
MTermination ferrules / Ring for
M’Ax 6-way size-1 plug
XCut ends Cut ends
5 Cable length
Specify length in metres
Minimum: 002 (2 metres)
Maximum: 050 (50 metres)

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M’Ax Installation Guide 5
Issue Number: 6 www.controltechniques.com
2.6 Signal cables and connectors
Isolation
The signal connections are isolated from the power
circuits by basic insulation only. Ensure that all external
control circuits connected to this connector are
separated from human contact by at least one layer of
insulation rated for use at the AC supply voltage.
0V connections
Do not connect 0V COMMON to 0V, or use these in place of each
other; doing so may cause instability in use. See Functions of the
signal terminals in Chapter 2 of the M’Ax User Guide.
410
9
8
15
14
11
5
10
8
15
9
15
12
Analog output 2
Analog output 1
0V
Cable shields
Standard-precision
analog input
5
4
3
2
10
9
8
7
15
14
11
24V user supply
0V COMMON
Input 7
Input 8
0V COMMON
Output 1
Input 1
Output 2
Input 2
Output 3
Input 3
Output 4
Input 4
Input 5
Input 6
Z output
9
11
Digital I/O
Digital I/O
Hardware enable
0V COMMON
SLM-and-user
back-up supply
Frequency input
Quad. A input
Direction input
Quad. B input
24V user supply
0V COMMON
High-precision
analog input
70V COMMON
6
Touch-trigger
input
12
TX
Status-relay
contact
TX\
24V user supply
0V COMMON
RX
RX\
0V COMMON
EIA 485
7
EIA 485
14
13
13
14
6
7
6
2
1
13
12
3Hardware enable 8
10
DIGITAL I/O SIM ENC
STANDALONE MC/EIA485
11
4
3
5
4
3
2
1
6
7
8
5
4
3
2
1
6
7
8
5
4
3
2
1
6
7
8
6
7
8
5
4
3
2
1
0
V COMMON
24V SLM supply
com\
com\
SLM
H
ardware enable
D
rive-status supply
c
om\
com\
MC
MULTIDROP
OUT
0
V COMMON
2
4V loop
s
upply
H
ardware enable
D
rive-status output
MULTIDROP
IN/PC
0
V COMMON
2
32 TXD
2
32 RXD
E
IA232
2
4V loop input
H
ardware enable
D
rive-status input
c
om\
com\
c
om\
com\
5
c
om\
c
om\
1
2
+24V
2
1
13
12
Non-inverting input/output
Inverting input/output
5
4
3
16
H
ardware enable
Drive-status supply
B
output
A output
+24V
24V user supply
0V COMMON
SLM-and-user
back-up supply
0V COMMON
**
*
*
*
*
M
ultidrop
M
ultidrop
Digital output 4
Terminate pulse reference input
connections (frequency / direction or
quadrature inputs) at the drive by
connecting across the related input
terminals a resistor whose value equals the
characteristic impedance of the cable that
is being used. When more than one drive is
connected a resistor is required only at the
last drive.
0V and 0V common must be used only in
conjunction with their related signal
connections, and must not be used in place
of each other.
Any cable connecting to the SIM ENC
connector should have its cable shield
connected to Pin 15. Failure to do so can
result in damage to the drive.
Wait 30 seconds after removing power to
the drive before inserting or removing
control cables as ‘hot plugging’ cables can
result in damage to the drive or SLM.
CAUTION
CAUTION
CAUTION
CAUTION
Figure 2-2 Plan view of top of drive: Locations of the terminals and their connector
WARNING
NOTE

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2.7 RJ45 connectors and cables
RJ45 connectors
For connection to the following connectors on the drive...
•SLM
•MC
• MULTIDROP OUT
• MULTIDROP IN/PC
... use the following:
Cables
Up to four twisted-pairs having an overall shield (unused wires must not
be connected to pins at the other end)
Maximum length: 50m (165ft)
Maximum diameter: 6.6mm (1/4in)
Static installations: for example, use BICC type S-FTP patch,four
twisted pairs, 5.33mm diameter
Dynamic installations: for example, use Intercond type 3MBM 26P 02P,
2 twisted pairs, 5.5mm diameter
Connectors
Shielded 8-way RJ45 plugs
Connect the pins in pairs as shown.
Comb out the braided shield, fold the strands back and trap them under
the cable clamp to ensure good electrical contact with the clamp.
Do not use unshielded plugs.
Use RS Component part no 290-4780 for shielded
connector 5.7mm, or
Use RS Component part no 342-2087 for shielded
connector 6.6mm
Ordering signal cables
Cables of the required lengths and fitted with RJ45 connectors as
required are supplied by Control Techniques Dynamics Ltd. For
ordering, create the required order code (see below) and contact the
supplier of the drive.
The order code is constructed as follows:
Details of the code are as follows:
Wait 30 seconds after removing power to the drive before
inserting or removing control cables as ‘hot plugging’
cables can result in damage to the drive or SLM.
1
2
3
4
5
6
7
8
18
WARNING
1Typeofcable
SL Two twisted pairs in overall shield
2Typeofsheath
BPUR
Use for dynamic applications (motor mounted on a moving
structure) – increased oil resistance
3 Options
AStandard
4 Cable terminations
FRJ45 plug 5-way Din connector Drive to SLM
GRJ45 plug Cut end
KRJ45 plug RJ45 plug Drive to drive
XCut end Cut end
5 Cable length
Specify length in metres
Minimum: 002 (2 metres)
Maximum: 050 (50 metres)
CAUTION

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2.8 SLM connector
Incorrect wiring of this cable could result in failure of the
M’Ax or SLM.
Wait 30 seconds after removing power to the drive before
inserting or removing control cables as ‘hot plugging’
cables can result in damage to the drive or SLM.
1. 8-way shielded cable having an overall diameter not greater than
6.6mm (1/4in)
2. Maximum length: 50m (165ft)
3. Route the cable by the shortest convenient path and so that it is no
closer than 300mm (1ft) from any power cable.
4. Overall shield of tinned copper braid. Comb out the braid at both
ends, fold the strands back and trap them under the cable clamp to
ensure good electrical contact with the connector shell.
5. The required twisted pairs connected to the DIN connector, the
unwanted twisted pairs should be cut at each end and insulated to
prevent inadvertent contact.
6. Make the wire ends as short as possible (this affects performance).
7. Amphenol C091 31D005 100 2 5-way screw-locking DIN connector
meeting IP67.
8. Shielded RJ45 8-way plug
2.9 D-type connectors
For connection to the following connectors on the drive...
•SIMENC
• MC/EIA485
• DIGITAL I/O
• STANDALONE
... use the following:
Cables
Manyof the signals are EIA485 comms. and these must use twisted
pairs of the correct characteristic impedance cables having tinned-
copper stranded conductors, overall braided shield
Maximum overall diameter: depends on the D-type connector being
used
Connectors
SIM ENC
MC/EIA485
15-way high-density male D-type having a metal shell (improved
EMC type)
DIGITAL I/O
STANDALONE
15-way high-density female D-type having a metal shell (improved
EMC type)
2.10 Method of mounting
The two mounting brackets fitted to the drive are intended for mounting
the drive on the back-plate of the enclosure. Exhaust heat from the drive
is emitted in front of the back-plate. (Mounting instructions are given
later in this chapter.)
Alternatively the drive can be mounted through an aperture in the back-
plate to allow the exhaust heat to be emitted behind the back-plate. In
this case, the two mounting brackets fitted to the drive must be removed,
modified and re-fitted; the ground bracket supplied with the drive must
also be modified. For instructions, refer to the supplier of the drive.
2.11 Output current, Ambient temperature,
Heat dissipation, De-rating
The ambient temperature should be taken as the temperature of the
air immediately under the drive. This is especially important when
the drive is to be installed above heat-generating equipment.
2
3
4
5
1
0V
+
24V
0V
com
c
om/
54
1
2
3
7
6
1
2
3
4
5
6
7
8
+24V
0V
com
com/
8
Drive
(RJ45)
1256
comcom\+24V 0V
5
1
3
2
4
S
LM
(
DIN)
Drive SLM
Figure 2-3 Connecting the SLM cable to the connectors (only the relevant parts of the connectors are shown)
WARNING
CAUTION
NOTE

*
8M’AxInstallationGuide
www.controltechniques.com Issue Number: 6
The drive can supply the rated maximum continuous output current
(FLC) as follows...
Models M’Ax 403 and M’Ax 406: Up to an ambient temperature of
55°C (131°F)
Models M’Ax 409 and M’Ax 412: Up to an ambient temperature of
45°C (113°F); from 45°C to 55°C (131°F), the maximum permissible
continuous output current is reduced to 8.5A and 10.5A respectively.
If the drive is to be used at an altitude in excess of 2000m (6600ft), de-
rating for altitude must be applied to the output current; see Altitude on
page 26.
Make a note of the following values for the model to be used; you will
need to know these later:
• Maximum intended ambient temperature (TAMB max) (required for
calculating the enclosure size later in this chapter)
• Maximum continuous output current (if this needs to be a de-rated
value)
• Maximum heat dissipated into the enclosure
Current de-rating
If this precaution is not taken, the output current of the
drive can exceed the maximum permissible value. This
may result in loss of motor control due to excessive
heatsink temperature causing the drive to trip.
2.12 Thermal protection
The power output stage (IGBT bridge) of the drive is protected as
follows:
• When the heatsink temperature reaches an alarm level the drive
continues operating; the lower line of the display indicates hot as a
pre-warning
• If the load is not reduced and the heatsink temperature continues to
rise the drive will trip; the lower line of the display indicates O.ht2
Table 2-8 Maximum currents and heat dissipated into the
enclosure (these do not show de-rating for altitude)
2.13 When to use a braking resistor
When an AC motor is decelerated, or the drive is preventing the motor
from gaining speed due to mechanical influences, energy is returned to
the drive from the motor. When this energy is too great for the drive to
absorb, the DC-bus voltage is raised, which increases the possibility of
the drive tripping due to excessive DC-bus voltage.
Depending on the braking requirements, an internal braking resistor
fitted in the drive, or an external braking resistor, can be used for
absorbingthe returned energy. The braking resistoris then switched into
circuit by an internal transistor when the DC-bus voltage reaches 780V.
The required value for the braking resistor is determined by the
maximum required braking torque, while the required power rating is
determined by the amount of energy to be dissipated, the duty cycle and
repetition time, as well as the cooling available for the resistor. When the
value and powerrating have been calculated, adecision can be made to
use the internal resistor or an external resistor.
It is important that the braking resistor is adequately
rated otherwise the drive could trip due to excessive DC-
bus voltage; braking will then cease, allowing the motor
to coast uncontrolled.
2.14 Braking resistor data
Table 2-9 Internal braking resistor
Table 2-10 External braking resistor
The instantaneous power ratingrefers to the power dissipated during the
conducting periods (milliseconds) of the braking transistor (this operates
under a form of pulse width modulation during braking). Higher
resistance values require proportionately lower instantaneous power
ratings.
The required average power rating of (and heat dissipated by) the
braking resistor depends on the duty cycle of the application (see 2.17
Braking-resistor example calculations on page 9).
Model
Output current Maximum heat dissipated into
enclosure
TAMB
max. Maximum
continuous
Maximum
overload
(2 secs.
max.)
Using
internal
braking
resistor
Using
external
braking
resistor
mounted
outside
the
enclosure
M’Ax403 55oC
(131oF) 3.5A 7.0A 250W 100W
M’Ax406 55
oC
(131oF) 6.5A 13.0A 290W 140W
M’Ax409 45oC
(113oF) 9.5A 19A 330W 180W
55oC
(131oF) 8.5A 17.0A
M’Ax412 45oC
(113oF) 12.5A 25A 350W 200W
55oC
(131oF) 10.5A 21A
CAUTION
Value 75Ω
Operating voltage (VR)780V at switch-on
760V at switch-off
Peak current rating 10.9A
Peak power rating 8.9kW
Maximum continuous braking power 125W
Absolute minimum permissible
value 40Ω
Operating voltage (VR)780V at switch-on
760V at switch-off
Maximum possible braking current
(through 40Ω)(Ib
MAX)20.5A
Peak power rating for 40Ω16.8kW
Continuous power rating (See Braking-resistor example
calculations later in this chapter)
CAUTION

*
M’Ax Installation Guide 9
Issue Number: 6 www.controltechniques.com
2.15 Braking resistor precautions
Electric shock risk
The voltages present on the braking resistor, its
associated components and terminals on the drive are
capable of inflicting a severe electric shock and may be
lethal.
Thermal overload protection
When an external braking resistor is used, it is essential
that a thermal overload protection device is incorporated
in the braking-resistor circuit in order to minimise the
risk of fire in the event of unexpectedly high current, or
loss of control of the braking circuit. A typical protection
circuit is shown in the following section, Thermal
protection of the braking resistor.
2.16 Thermal protection of the braking
resistor
High temperatures
Braking resistors can attain high temperatures and
should be segregated from temperature-sensitive
equipment and personnel.
When a braking resistor is to be used, ensure the following:
• Include a lock-out circuit that will prevent the AC supply from being
re-connected to the drive until the cause of a trip has been fully
investigated.
• An external braking resistor should be capable of tolerating thermal
shock; pulse rated resistors are recommended.
• It is essential that the instantaneous and average power ratings of
the braking resistor are sufficient for the most extreme braking duty
that is likely to be encountered. If the internal braking resistor is
overloaded, the drive will trip (trip code: It.br).
• When an external braking resistor is mounted inside the enclosure,
or the internal braking resistor is used, the heat dissipated by the
resistor will increase the ambient temperature inside the enclosure.
(The value of heat dissipation is used for calculating the enclosure
size or ventilation which are described later in this chapter.)
• Always use shielded or steel wire armoured cable for connecting an
external braking resistor.
When an external braking resistor is used, a thermal-protection circuit
must be added. Thismust disconnect the AC supply from the drive if the
braking resistorbecomes overloaded. Forguidance, Figure 2-4 shows a
typical circuit arrangement (complete circuit diagrams for the power
connections appear later in this chapter).
When the internal braking resistor is used, a thermal-protection circuit is
not required since thermal-modelling in the drive causes the drive to trip
if the resistor becomes overloaded (trip code: It.br); also, the braking
resistor itself is fail-safe.
Figure 2-4 Typical protection circuit for an external braking
resistor
1. START/RESET switch (momentary)
2. STOP switch (latching)
3. Control-circuit supply
4. Contactor coil
5. Thermal overload protection relay
6. External braking resistor
7. 380 ~ 480V AC supply to the drive
8. Drive power connectors.
2.17 Braking-resistor example
calculations
Conditions
Model: M’Ax409
Maximum peak output current (Ipk) from the drive (for 2 seconds
maximum): 19A
Full-load speed (n)ofmotor:4000RPM
Continuous stall torque (TCS)ofmotor:12.2Nm
Motor KT=1.6Nm/A
Motor inertia (JM): 3.43 x 10 -3 kg m2
Load inertia (JL): 10.29 x 10 -3 kg m2
Total inertia (JT=JM+JL): 13.7 x 10-3 kg m2
Required deceleration time (td) from full to zero speed: 0.5 second
Repeat cycle time for deceleration (tr): 7 seconds
Minimum permissible braking-resistor value: 40Ω
Operating voltage (VR) at switch on: 780V
WARNING
WARNING
WARNING

*
10 M’AxInstallationGuide
www.controltechniques.com Issue Number: 6
2.18 Minimum permissible deceleration
time
The minimum permissible deceleration time is limited by the following:
• The peak current of the drive (Ipk)
•Theintermittent torque limit of the motor (the value of torque that the
motor can deliver for a specified time - see the motor manufacturer’s
data)
1. Calculate the maximum torque that the motor would produce when
the drive is delivering peak current (19A), as follows:
Thedrivewouldcausethisvalueoftorquetobeproducedforupto2
seconds.
2. Refer to the the motor manufacturer’s data to obtain the permissible
overload (continuous stall torque) for 2 seconds.
Then use this figure to calculate the intermittent torque limit for the
motor for a 2-second duration. For this example, 3 times the nominal
torque rating is assumed, as follows:
3. For calculating the minimum permissible deceleration time (tbMIN),
use the lower of the two calculated values, as follows:
4. The following equation is used as the basis for the calculations:
Use the following derivative of the equation to calculate the minimum
permissible deceleration time (tbMIN) for stopping the motor from full-
load speed:
Check that tbMIN is less than td;ifnot,systemdesignmustbe
reconsidered.
Resulting torque
Calculate the torque thatresults fromtherequired deceleration time,
as follows:
2.19 Power rating of the braking resistor
1. Calculate the kinetic energy (EK) that will be dissipated in the
braking resistor, as follows:
2. Calculate the average power over deceleration time (td):
3. Calculate the average power (Pav) that will be dissipated over the
whole cycle:
When the value of Pav is less than 125W, the internal braking
resistor can be used. For this example (which shows marginal
conditions), an external braking resistor must be used in order to
reduce the risk of the drive tripping under braking; tripping would
remove control from the motor, allowing it to coast.
4. Since braking is planned to occur intermittently, an external resistor
can be rated for intermittent rather than continuous power
dissipation so that the overload factor of the resistor can be used.
This factor can be obtained from cooling curves for the resistor, as
shown in Figure 2-5.
Figure 2-5 Example cooling curves for power resistors (in
practice, refer to the cooling curves for the resistor to be used)
5. The cooling curves indicate that for a braking time of 0.5 second and
repeatcycletimeof7seconds,theoverloadfactor(F)is3.5.
MbDRIVE Ipk KT
×19 1.6×30.4Nm===
MbINT TCS 3×12.2 3×36.6Nm===
MbMAX 30.4Nm=
MbJTn
tb
---------- π
30
------ Nm()×=
tbMIN JTπn
30MbMAX
--------------------------
=
tbMIN 13.7 10 3–
×π×4000×
30 30.4×
------------------------------------------------------------ 0.19 ondsec==
MbJTn
td
---------- π
30
----------
×Nm()=
Mb13.7 10 3–
×π×4000×
0.5 30×
-----------------------------------------------------------11.5Nm==
EK0.5 J×nπ×
30
-------------
èø
æö
2
×=
EK0.5 13.7×10 3–4000 π×
30
----------------------
èø
æö
2
××=
EK1.2kJ=
PPK EK
td
-------
=
PPK 1.2kJ
0.5
--------------- 2.4kW==
Pav EK
tr
-------
=
Pav 1200
7
-------------171W==
1
2
3
4
5
6
7
8
9
10
0.1 0.2 0.5 1 2 5 10 20 50
R
epeat cycle times
7s 1min 5min
30s 30min
Overload
factor
Deceleration time

*
M’Ax Installation Guide 11
Issue Number: 6 www.controltechniques.com
6. Calculate the minimum required power rating of the resistor, as
follows:
If the braking resistor is to be mounted inside the enclosure, make a
note of this value; you will need it when calculating the enclosure
size.
In practice, use a resistor having a power rating higher than the
calculated value. For this example: PR=750Wor0.75kW
2.20 Value of the braking resistor
1. Calculate the maximum suitable value for the braking resistor, as
follows:
2. Inpractice,usearesistorhavingapreferredvalueclosetoand
lower than the calculated value. This is because the calculated value
would cause the braking transistor to be switched on almost
continuously during braking. In this case, the drive will not have full
control of the DC-bus voltage. A lower value of braking resistor will
cause the braking transistor to act as a chopper which will then allow
the drive to control the DC-bus voltage more accurately.
The reduction in value does not increase the power dissipation since
the average voltage across the resistor is reduced by the braking
transistor operating as a chopper.
For this example: R=200Ω
2.21 Disabling protection of the internal
braking resistor
The internal braking resistor is protected against I2toverloadby
calculations performed in the drive software. When an external braking
resistorbeingused,thiscalculationmustbedisabledinordertoremove
the possibility of it causing the drive to trip unnecessarily.
To disable the I2t protection for the internalbraking resistor, make a note
to set parameter 10.55 at 1when following Chapter 6 Setting Up the
drive for Basic Applications in the User Guide.
Do not disable the I2t protection when the internal
braking resistor is to be used.
2.22 Current setting for a thermal overload
protection relay
1. Calculate the maximum permissible continuous current through
the braking resistor that is to be used, as follows:
where:
PRis the continuous power rating of the resistor to be used (not
the minimum required power rating)
Ris the actual value of the braking resistor (not the calculated
value)
2. Select a model of thermal overload relay that can be set at 1.9A
3. Calculate the maximum current that could flow through a resistor
(e.g. due to the braking resistor becoming short circuit), as follows:
4. Calculate the overload factor for this condition, as follows:
5. Use the tripping curves to find the time that the thermal overload
relay will take to trip (e.g. 30 seconds approximately).
2.23 Enclosure layout
Refer to Figure 2-6 for minimum clearances above and below the drive.
The bookcase format allows drives to be mounted in rows with no need
for horizontal spacing.
Figure 2-6 Minimum clearances above and below the drive
Refer to Figure 2-7 for the arrangement of the associated equipment and
wiring in the enclosure. This diagram shows two drives, one having an
external braking resistor connected. When EMC emission standards are
to be met, an RFI filter will need to be included for each drive; see the
sections on EMC emission standards later in this chapter.
PRMIN PPK
F
---------- 2.4 103
×
3.5
------------------------0.7kW== =
RMAX VR
()
2
PPK
---------------7802
2.4 103 ×
------------------------250Ω== =
CAUTION
IRmax PR
R
------- 750
200
----------1.9A== =
IRpk VR
R
------- 780
200
----------3.9A== =
FS\C IRpk
ISET
---------------3.9
1.9
--------2
===
1
2
5
10
0.5 1 2 5 10 17
X current setting (F)
20
50
100
Time (s)
Balanced operation 3-phase,
from cold state
Balanced operation 2-phase,
from cold state
Balanced operation 3-phase,
after a long period of set current
flow (hot state)

*
12 M’AxInstallationGuide
www.controltechniques.com Issue Number: 6
Figure 2-7 Arrangement of the drive and associated equipment in
the enclosure
1. Enclosure. For high ingress protection, this must be sealed and the
drive mounted on the back-plate.
2. Enclosure back-plate.
3. When an external braking resistor is to be used, mount the resistor
either above or inside the enclosure, as follows...
Inside Locate the resistor on or near the top panel.
Outside Mount the resistor in an adequately ventilated metal
housing that will prevent inadvertent contact with the resistor.A
separate external braking resistor must be used for each drive
(unless their DC-buses are connected in parallel).
4. Thermal overload protection relay required for each external braking
resistor. Locate as required.
5. System controller. Locate as required.
6. Signal cables and circuits. See the next section in this chapter for
clearances.
7. Drive mounted vertically on the enclosure back-plate (see 1. above).
8. Power cables. Position as required.
9. Isolator, contactor, and fuses or MCBs. Locate as required.
10. Alternative locations of fuses or MCBs. Locate as required.
11. Power cables entering the enclosure. Position as required.
EMC compliance
When compliance with EMC emission standards is required, additional
precautions must be taken; see the EMC emission standards sections
later in this chapter.
2.24 Clearances for the signal cables
Recommended clearances are shown on this page; they are required for
routine EMC precautions as well as for compliance with EMC emission
standards.
Clearance from the drive
Do not locate sensitive
signal circuits or pass
signal cables within
300mm (12 in) of the drive.
Clearance from power
cables
Do not pass signal cables
within 300mm (12 in) of:
• Motor cables
• Braking resistor
cables
• AC supply cables

*
M’Ax Installation Guide 13
Issue Number: 6 www.controltechniques.com
Crossing angle
When power and
signal cables
cross, the
crossing angle
must be 90°.
2.25 Enclosure calculations for heat
removal
Decide whether the enclosure is to be sealed or ventilated, as follows:
Sealed enclosure
Asealedenclosurecangiveahighingress-protectionrating,butwith
reduced heat removal capabilities. If possible, locate heat-generating
equipment (other than braking resistors) in the lower part of the
enclosure to encourage internal convection. If necessary, a taller
enclosure, and/or air-circulation fans inside the enclosure, can be used.
For calculating the minimum size of sealed enclosure that will
adequately cool the drive (and other drives), see Enclosure calculations
later in this chapter.
Ventilated enclosure
If a high ingress-protection rating is not required, a ventilated enclosure
canbeusedwithafantosupplyforcedaircooling;thiscangivealower
ambient temperature than a sealed enclosure. For calculating the
minimum required volume of cooling air, see Calculating the air-flow in a
ventilated enclosure on page 14.
Total heat dissipation
1. Add the dissipation figures from step 6 (in Planning the installation)
for each drive that is to be installed in the enclosure. Make a note of
the total value.
2. IfanRFIfilteristobeusedwitheachdrive,addthedissipation
figures from step 29 (in EMC emission standards – instructions later
in this chapter) for each RFI filter that is to be installed in the
enclosure. Make a note of the total value.
3. If the braking resistor is to be mounted inside the enclosure, add the
average power dissipation from step 12 (in Planning the installation)
for each braking resistor that is to be installed in the enclosure. Make
a note of the total value.
4. Make a note of the total heat dissipation (in Watts) of anyother
equipment to be installed in the enclosure.
5. Add the heat dissipation figures obtained (as appropriate) from lines
1, 2, 3 and 4 above. This gives a figure in Watts for the total heat that
will be dissipated inside the enclosure. Make a note of this figure.
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 Aefor the
enclosure from:
Where:
AeUnobstructed surface area in m2(1m2= 10.8ft2)
Tamb Maximum expected ambient temperature in °C outside the
enclosure
TiMaximum intended ambient temperature in °C inside the
enclosure
PPower in Watts dissipated by all heat sources in the
enclosure
kHeat transmission coefficient of the enclosure material
in W/m2/°C
Take care when performing these calculations in order to ensure
the ambient temperature inside the enclosure does not exceed
55°C (131°F) or 45°C (113°F), as appropriate (see step 6 in Planning
the installation).
Example
To calculate the size of an enclosure for the following:
• Three M’Ax409
• Each driveis to have an externalbrakingresistor mounted inside the
enclosure
• An RFI filter (model 3258-16-45) to be used with each drive
• Maximum ambient temperature inside the enclosure: 55°C
• Maximum ambient temperature outside the enclosure: 30°C
Dissipation of the drive: 180W (from section 2.11 Output current,
Ambient temperature, Heat dissipation, De-rating on page 7)
Average dissipation from the braking resistor: 171W (from section
2.18 Minimum permissible deceleration time on page 10)
Dissipation of each RFI filter: 6W (max) (from Installing an RFI filter on
page 21
Total dissipation: 3 x (180 + 171 + 6) = 1071W
The enclosure is to be made from painted 2mm (0.0787in) sheet steel
having a heat transmission coefficient kof 5.5W/m2/°C. Only the top,
front, and two sides of the enclosure are to be free to dissipate heat.
AeP
kT
iTamb
–()
---------------------------------
=
NOTE

*
14 M’AxInstallationGuide
www.controltechniques.com Issue Number: 6
Figure 2-8 Enclosure having front, sides and top panels free to
dissipate heat
Insert the following values:
Ti55°C
Tamb 30°C
k5.5
P1071W
The minimum required heat conducting area is then:
(1m2=10.8ft
2)
Estimate two of the enclosure dimensions - the height (H)and depth(D),
for instance. Calculate the width (W) from:
Inserting H= 2m and D= 0.6m, obtain the minimum width:
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:
• Reducing the ambient temperature outside the enclosure, and/or
applying forced-air cooling to the outside of the enclosure
• Removing other heat-generating equipment, eg. braking resistors
• Reducing the number of drives in the enclosure
• Air circulating fan inside enclosure (see section 2.25 Enclosure
calculations for heat removal on page 13)
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:
Where:
VAir-flow in m3per hour
Tamb Maximum ambient temperature in °C outside the enclosure
Ti Maximum ambient temperature in °C inside the enclosure
PPower in Watts dissipated by all heat sources in the
enclosure
kpRatio of
Where:
P0is the air pressure at sea level
P1is the air pressure at the installation
Typically use a factor kaof1.2to1.3,toallowalsoforpressure-
drops in dirty air-filters.
Example
To calculate the required air flow in an enclosure for the following:
• Three M’Ax409
• Each drive is to have an external braking resistor mounted outside
the enclosure
• Maximum ambient temperature inside the enclosure: 55°C
• Maximum ambient temperature outside the enclosure: 30°C
•Atsealevel(kp=1forthisexample)
Dissipation of each drive: 180W (from section 2.11 Output current,
Ambient temperature, Heat dissipation, De-rating on page 7)
Total dissipation: 3 x 180 = 540W
Insert the following values:
Ti55°C
Tamb 30°C
ka1.3
P540W
Then:
W
H
D
Ae1071
5.5 55 30–()
---------------------------------7.8284ft2
()==
WAe2HD–
HD+
--------------------------
=
W7.8 2 2×0.6×()–20.6+
---------------------------------------------- 2.08m 6ft10in()==
V3kP
TiTamb
–
-------------------------
=
P0
P1
------
V31.3×540×
55 30–
----------------------------------84m3hr 493min()==

*
M’Ax Installation Guide 15
Issue Number: 6 www.controltechniques.com
2.26 Mounting the drive
Parts supplied
Fitting the mounting brackets to the drive
Figure 2-9 Locations of the mounting brackets
1. Locate the tabs of theuppermountingbracket (not fitted with a stud)
in the slots near the top of the rear panel of the drive.
2. Retain the bracket with two of the M4 T20 Torx-head screws
supplied.
3. Locate the tabs of the lower mounting bracket (fitted with stud S)in
the slots near the bottom of the rear panel of the drive.
4. Retain the bracket with two of the M4 T20 Torx-head screws
supplied.
Quantity Part Purpose
1 M5 nut Ground stud1 M5 plain washer
1 M5springwasher
1 Ground bracket Safety ground connections
3 Hose clip (11 to 16mm [0.433 to 0.630 in] dia.) Clamp power cables to the ground bracket
2 Keyed plug-in 4-way connector Power connections
1 Keyed plug-in 5-way connector and braking link
1 Upper mounting bracket Mounting the drive
1 Lower mounting bracket
4 M4 x 8mm T20 Torx-head Taptite screws

*
16 M’AxInstallationGuide
www.controltechniques.com Issue Number: 6
2.27 Attaching the drive to the back-plate
Figure 2-10 Mounting details for the drive
1. Back-plate with mounting holes A.
2. Upper mounting bracket fitted to the rear of the drive.
3. Lower mounting bracket with M5 stud Sfitted to the rear of the drive.
The stud must be used for ground termination (see section
2.30 Method of connecting the power cables on page 18).
4. If compliance with EMC emission standards is required, both
mounting brackets must make direct electrical contact with the back-
plate; the screw holes should be threaded.
5. Area occupied by the drive.
6. Loosely fit screws (B), locate the slotted holes in the mounting
brackets over the screws, then tighten the screws.
(
9.724in)
(
14.173in)
M5
M5
(0.590in)
(1.986in)
(2.440in)
(0.787in)
(0.905in)
(
12.992in)
(10.748in)
11mm (0.433in)