Emerson Unidrive M400 User manual

Control User Guide
Unidrive M400
Variable Speed AC drive for induction
motors
Part Number: 0478-0349-01
Issue: 1

Original Instructions
For the purposes of compliance with the EU Machinery Directive 2006/42/EC:
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 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 part 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 and Pr 11.035.
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
Automations' 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.
REACH legislation
EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals (REACH) requires the supplier
of an article to inform the recipient if it contains more than a specified proportion of any substance which is considered by the European
Chemicals Agency (ECHA) to be a Substance of Very High Concern (SVHC) and is therefore listed by them as a candidate for
compulsory authorisation.
For current information on how this requirement applies in relation to specific Emerson Industrial Automations' products, please
approach your usual contact in the first instance. Emerson Industrial Automations' position statement can be viewed at:
www.emersonindustrial.com/en-EN/controltechniques/aboutus/environment/reachregulation/Pages/reachregulation.aspx
Copyright © May 2016 Emerson Industrial Automation.
The information contained in this guide is for guidance only and does not form part of any contract. The accuracy cannot be guaranteed
as Emerson have an ongoing process of development and reserve the right to change the specification of their products without notice.
Control Techniques Limited. Registered Office: The Gro, Newtown, Powys SY16 3BE. Registered in England and Wales. Company
Reg. No. 01236886.
Moteurs Leroy-Somer SAS. Headquarters: Bd Marcellin Leroy, CS 10015, 16915 Angoulême Cedex 9, France. Share Capital: 65 800
512 €, RCS Angoulême 338 567 258.
Issue Number: 1
Drive Firmware: 01.04.04 onwards
For patent and intellectual property related information please go to: www.ctpatents.info.

How to use this guide
This guide is intended to be used in conjunction with the appropriate Power Installation Guide. The Power Installation
Guide gives information necessary to physically install the drive. This guide gives information on drive configuration,
operation and optimization.
There are specific safety warnings throughout this guide, located in the relevant sections. In addition, Chapter 1 Safety
information contains general safety information. It is essential that the warnings are observed and the information
considered when working with or designing a system using the drive.
This map of the user guide helps to find the right sections for the task you wish to complete, but for specific information,
refer to Contents on page 4:
NOTE
1 Safety information
2 Product information
3 Mechanical installation
4 Electrical installation
5 Getting started
6 Basic parameters
7 Running the motor
8 Optimization
9 NV media card operation
11 Advanced parameters
10 Onboard PLC
12 Diagnostics
13 UL listing information

4Unidrive M400 Control User Guide
Issue Number: 1
Contents
1 Safety information .................................9
1.1 Warnings, Cautions and Notes .............................9
1.2 Electrical safety - general warning ........................9
1.3 System design and safety of personnel ................9
1.4 Environmental limits ..............................................9
1.5 Access ...................................................................9
1.6 Fire protection .......................................................9
1.7 Compliance with regulations .................................9
1.8 Motor .....................................................................9
1.9 Mechanical brake control ......................................9
1.10 Adjusting parameters ............................................9
1.11 Electrical installation ............................................10
1.12 Hazard .................................................................10
2 Product information ............................11
2.1 Introduction .........................................................11
2.2 Model number .....................................................11
2.3 Ratings ................................................................12
2.4 Operating modes .................................................13
2.5 Keypad and display .............................................13
2.6 Nameplate description ........................................14
2.7 Options ................................................................15
3 Mechanical installation .......................18
3.1 Installing / removing options and keypad ............18
3.2 Real time clock battery replacement ...................21
4 Electrical installation ...........................22
4.1 24 Vdc supply ......................................................22
4.2 Communication connections ...............................22
4.3 Control connections ............................................23
4.4 Safe Torque Off (STO) ........................................27
5 Getting started .....................................29
5.1 Understanding the display ...................................29
5.2 Keypad operation ................................................29
5.3 Menu structure ....................................................31
5.4 Advanced menus ................................................32
5.5 Changing the operating mode .............................33
5.6 Saving parameters ..............................................33
5.7 Restoring parameter defaults ..............................33
5.8 Parameter access level and security ..................33
5.9 Displaying parameters with non-default
values only ..........................................................34
5.10 Displaying destination parameters only ..............34
5.11 Communications .................................................34
6 Basic parameters .................................35
6.1 Menu 0: Basic parameters ..................................36
6.2 Parameter descriptions .......................................40
6.3 Control terminal configurations and wiring ..........41
7 Running the motor ..............................47
7.1 Quick start connections .......................................47
7.2 Changing the operating mode .............................47
7.3 Quick start commissioning / start-up ...................52
8 Optimization ........................................ 54
8.1 Motor map parameters ....................................... 54
8.2 Maximum motor rated current ............................ 60
8.3 Current limits ...................................................... 60
8.4 Motor thermal protection .................................... 60
8.5 Switching frequency ........................................... 61
8.6 CT Modbus RTU specification ........................... 62
9 NV Media Card Operation .................. 67
9.1 Introduction ........................................................ 67
9.2 SD card support ................................................. 67
9.3 NV Media Card parameters ............................... 70
9.4 NV Media Card trips ........................................... 70
9.5 Data block header information ........................... 70
10 Onboard PLC ....................................... 71
10.1 Onboard PLC and Machine Control Studio ........ 71
10.2 Benefits .............................................................. 71
10.3 Features ............................................................. 71
10.4 Onboard PLC parameters .................................. 72
10.5 Onboard PLC trips ............................................. 72
11 Advanced parameters ........................ 73
11.1 Parameter ranges and Variable minimum/
maximums: ......................................................... 76
11.2 Menu 1: Frequency reference ............................ 82
11.3 Menu 2: Ramps .................................................. 86
11.4 Menu 3: Frequency control ................................ 89
11.5 Menu 4: Torque and current control ................... 94
11.6 Menu 5: Motor control ........................................ 97
11.7 Menu 6: Sequencer and clock .......................... 101
11.8 Menu 7: Analog I/O .......................................... 103
11.9 Menu 8: Digital I/O ........................................... 106
11.10 Menu 9: Programmable logic, motorized pot,
binary sum and timers ...................................... 112
11.11 Menu 10: Status and trips ................................ 118
11.12 Menu 11: General drive set-up ......................... 120
11.13 Menu 12: Threshold detectors, variable
selectors and brake control function ................ 122
11.14 Menu 14: User PID controller ........................... 128
11.15 Menu 15: Option module set-up ....................... 131
11.16 Menu 18: Application menu 1 ........................... 132
11.17 Menu 20: Application menu 2 ........................... 133
11.18 Menu 21: Second motor parameters ................ 134
11.19 Menu 22: Additional Menu 0 set-up ................. 135
12 Diagnostics ....................................... 137
12.1 Status modes (Keypad and LED status) .......... 137
12.2 Trip indications ................................................. 137
12.3 Identifying a trip / trip source ............................ 137
12.4 Trips, Sub-trip numbers .................................... 139
12.5 Internal / Hardware trips ................................... 158
12.6 Alarm indications .............................................. 158
12.7 Status indications ............................................. 159
12.8 Displaying the trip history ................................. 159
12.9 Behaviour of the drive when tripped ................. 160

Unidrive M400 Control User Guide 5
Issue Number: 1
13 UL information ...................................161
13.1 UL file reference ................................................161
13.2 Option modules, kits and accessories ..............161
13.3 Enclosure ratings ..............................................161
13.4 Mounting ...........................................................161
13.5 Environment ......................................................161
13.6 Electrical Installation .........................................161
13.7 Motor overload protection and thermal
memory retention ..............................................162
13.8 Electrical supply ................................................162
13.9 External Class 2 supply ....................................162
13.10 Requirement for Transient Surge Suppression .162
13.11 Group Installation and Modular Drive Systems .162

6Unidrive M400 Control User Guide
Issue Number: 1
EU Declaration of Conformity
This declaration is issued under the sole responsibility of the manufacturer. The object of the declaration is in conformity with the relevant Union
harmonization legislation. The declaration applies to the variable speed drive products shown below:
The model number may be followed by additional characters that do not affect the ratings.
The variable speed drive products listed above have been designed and manufactured in accordance with the following European harmonized
standards:
EN 61000-3-2:2014 Applicable where input current < 16 A. No limits apply for professional equipment where input power ≥1 kW.
These products comply with the Restriction of Hazardous Substances Directive (2011/65/EU), the Low Voltage Directive (2014/35/EU) and the
Electromagnetic Compatibility Directive (2014/30/EU).
G Williams
Vice President, Technology
Date: 17th March 2016
These electronic drive products are intended to be used with appropriate motors, controllers, electrical protection components and other
equipment to form complete end products or systems. Compliance with safety and EMC regulations depends upon installing and
configuring drives correctly, including using the specified input filters.
The drives must be installed only by professional installers who are familiar with requirements for safety and EMC. Refer to the Product
Documentation. An EMC data sheet is available giving detailed information. The assembler is responsible for ensuring that the end product
or system complies with all the relevant laws in the country where it is to be used.
Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
Moteurs Leroy-Somer
Usine des Agriers
Boulevard Marcellin Leroy
CS10015
16915 Angoulême Cedex 9
France
Model number Interpretation Nomenclature aaaa - bbc ddddde
aaaa Basic series M100, M101, M200, M201, M300, M400, M600, M700, M701, M702, F300, H300, E200,E300, HS30, HS70,
HS71, HS72, M000, RECT
bb Frame size 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11
c Voltage rating 1 = 100 V, 2 = 200 V, 4 = 400 V, 5 = 575 V, 6 = 690 V
ddddd Current rating Example 01000 = 100 A
e Drive format A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier + Inverter (external choke),
T = 12P Rectifier + Inverter (external choke)
EN 61800-5-1:2007 Adjustable speed electrical power drive systems - Part 5-1: Safety requirements - Electrical, thermal and energy
EN 61800-3: 2004+A1:2012 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
EN 61000-6-2:2005 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity for industrial environments
EN 61000-6-4: 2007+ A1:2011 Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial
environments
EN 61000-3-2:2014 Electromagnetic compatibility (EMC) - Part 3-2: Limits for harmonic current emissions (equipment input current
16 A per phase)
EN 61000-3-3:2013
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

Unidrive M400 Control User Guide 7
Issue Number: 1
This declaration is issued under the sole responsibility of the manufacturer. The object of the declaration is in conformity with the relevant Union
harmonization legislation. The declaration applies to the variable speed drive products shown below:
The model number may be followed by additional characters that do not affect the ratings.
This declaration relates to these products when used as a safety component of a machine. Only the Safe Torque Off function may be used
for a safety function of a machine. None of the other functions of the drive may be used to carry out a safety function.
These products fulfil all the relevant provisions of the Machinery Directive 2006/42/EC and the Electromagnetic Compatibility Directive (2014/30/EU).
EC type examination has been carried out by the following notified body:
TUV Rheinland Industrie Service GmbH
Am Grauen Stein
D-51105 Köln
Germany
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
Person authorised to complete the technical file:
P Knight
Conformity Engineer
Newtown, Powys, UK
EU Declaration of Conformity (including 2006 Machinery Directive)
Control Techniques Ltd
The Gro
Newtown
Powys
UK
SY16 3BE
Moteurs Leroy-Somer
Usine des Agriers
Boulevard Marcellin Leroy
CS10015
16915 Angoulême Cedex 9
France
Model No. Interpretation Nomenclature aaaa - bbc ddddde
aaaa Basic series M300, M400, M600, M700, M701, M702, F300, H300, E200, E300, HS30, HS70, HS71, HS72, M000, RECT
bb Frame size 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11
c Voltage rating 1 = 100 V, 2 = 200 V, 4 = 400 V, 5 = 575 V, 6 = 690 V
ddddd Current rating Example 01000 = 100 A
e Drive format A = 6P Rectifier + Inverter (internal choke), D = Inverter, E = 6P Rectifier + Inverter (external choke),
T = 12P Rectifier + Inverter (external choke)
EN 61800-5-1:2007 Adjustable speed electrical power drive systems - Part 5-1: Safety requirements - Electrical, thermal and energy
EN 61800-5-2:2007 Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
EN ISO 13849-1:2008 Safety of Machinery, Safety-related parts of control systems, General principles for design
EN ISO 13849-2:2008 Safety of machinery, Safety-related parts of control systems. Validation
EN 61800-3: 2004+A1:2012 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
EN 62061:2005 Safety of machinery, Functional safety of safety related electrical, electronic and programmable electronic control
systems

8Unidrive M400 Control User Guide
Issue Number: 1
G. Williams
Vice President, Technology
Date: 17th March 2016
Place: Newtown, Powys, UK
IMPORTANT NOTICE
These electronic drive products are intended to be used with appropriate motors, controllers, electrical protection components and other
equipment to form complete end products or systems. Compliance with safety and EMC regulations depends upon installing and
configuring drives correctly, including using the specified input filters.
The drives must be installed only by professional installers who are familiar with requirements for safety and EMC. Refer to the Product
Documentation. An EMC data sheet is available giving detailed information. The assembler is responsible for ensuring that the end product
or system complies with all the relevant laws in the country where it is to be used.

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 9
Issue Number: 1
1 Safety information
1.1 Warnings, Cautions and Notes
A Note 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 Control User
Guide
1.3 System 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 Control User 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.
1.4 Environmental limits
Instructions in the Power Installation Guide regarding transport, storage,
installation and use of the drive must be complied with, including the
specified environmental limits. Drives must not be subjected to
excessive physical force.
1.5 Access
Drive access must be restricted to authorized personnel only. Safety
regulations which apply at the place of use must be complied with.
1.6 Fire protection
The drive enclosure is not classified as a fire enclosure. A separate fire
enclosure must be provided. For further information, refer to the relevant
Power Installation Guide.
1.7 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 ground (earth) connections.
The Power 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:
Safety of Machinery 2006/42/EC.
Electromagnetic Compatibility (EMC) Directive 2014/30/EU.
1.8 Motor
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 00.006 motor rated
current. This affects the thermal protection of the motor.
1.9 Mechanical 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.
1.10 Adjusting 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.
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.
WARNING
CAUTION
NOTE

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
10 Unidrive M400 Control User Guide
Issue Number: 1
1.11 Electrical installation
1.11.1 Electric 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.
1.11.2 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.
1.12 Hazard
1.12.1 Falling hazard
The drive presents a falling or toppling hazard. This can cause injury to
personnel and therefore should be handled with care.

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 11
Issue Number: 1
2 Product information
2.1 Introduction
Open loop AC drive
Unidrive M400 delivers maximum machine performance with open loop vector and sensorless induction motor control, for dynamic and efficient
machine operation.
Features
• Fast set-up and diagnosis with real-text display
• Onboard IEC 61131-3 programmable automation
• NV Media Card for parameter copying and data storage
• 24 Vdc Back-up supply (optional)
• EIA 485 serial communications interface (optional)
• Dual channel Safe Torque Off (STO) input
2.2 Model number
The way in which the model numbers for the Unidrive M range are formed is illustrated below:
Figure 2-1 Model number
Optional Build
Identification Label
Derivative Electrical Specifications
M400 -03 4 00073
Unidrive M400
Product Line
Frame Size:
Voltage Rating:
Current Rating:
Heavy Duty current rating x 10
Drive Format:
A - AC in AC out
Customer Code
01 A B 1 00
Customer Code:
00 = 50 Hz
01 = 60 Hz
Reserved:
Conformal Coating:
0 = Standard
IP/NEMA Rating:
1 = IP20 / NEMA 1
BrakeTransistor:
B=Brake
Cooling:
A = Air
Reserved
01
A
Documentation
1
Documentation:
2 - 200 V (200 - 240
- 400 V (380 - 480
- 575 V (500 - 575
- 690 V (500 - 690
±10 %)
4
1 - 100 V (100 - 120 10 %)±
±
±
10 %)
5
6 10 %)
±10 %)
0 - Supplied separately
1 - English
2 - French
3 - Italian
4 - German
5 - Spanish
N = No

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
12 Unidrive M400 Control User Guide
Issue Number: 1
2.3 Ratings
The size 1 to 4 drive is Heavy Duty rated only.
The size 5 to 9 drive is dual rated.
The setting of the motor rated current determines which rating applies -
Heavy Duty or Normal Duty.
The two ratings are compatible with motors designed to IEC60034.
The graph aside illustrates the difference between Normal Duty and
Heavy Duty with respect to continuous current rating and short term
overload limits.
Normal Duty Heavy Duty (default)
For applications which use Self ventilated (TENV/TEFC) induction
motors and require a low overload capability, and full torque at low
speeds is not required (e.g. fans, pumps).
Self ventilated (TENV/TEFC) induction motors require increased
protection against overload due to the reduced cooling effect of the fan
at low speed. To provide the correct level of protection the I2t software
operates at a level which is speed dependent. This is illustrated in the
graph below.
The speed at which the low speed protection takes effect can be
changed by the setting of Low Speed Thermal Protection Mode
(04.025). The protection starts when the motor speed is below 15 % of
base speed when Pr 04.025 = 0 (default) and below 50 % when
Pr 04.025 = 1.
For constant torque applications or applications which require a high
overload capability, or full torque is required at low speeds (e.g. winders,
hoists).
The thermal protection is set to protect force ventilated induction motors
by default.
N
If the application uses a self ventilated (TENV/TEFC) induction motor
and increased thermal protection is required for speeds below 50 %
base speed, then this can be enabled by setting Low Speed Thermal
Protection Mode (04.025) = 1.
Operation of motor I2t protection
Motor I2t protection is fixed as shown below and is compatible with:
• Self ventilated (TENV/TEFC) induction motors
Motor I2t protection defaults to be compatible with:
• Forced ventilation induction motors
Available output
current
Overload limit -
Heavy Duty
Maximum
continuous
current (above
50% base
speed) -
Normal Duty
Maximum
continuous
current -
Heavy Duty
Motor rated
current set
in the drive
Heavy Duty
- with high
overload capability
Normal Duty
Overload limit -
Normal Duty
NOTE
NOTE
Motor total
current (Pr 04.001)
as a percentage
of motor rated
current
Motor speed as a
percentage of base speed
100%
Max. permissible
continuous
current
100%
I t protection operates in this region
2
70%
50%15%
Pr = 0
Pr = 1
04.025
04.025
Motor total
current (Pr 04.001)
as a percentage
of motor rated
current
Motor speed as a
percentage of base speed
100%
Max. permissible
continuous
current
100%
I t protection operates in this region
2
70%
50%
Pr = 0
Pr = 1
04.025
04.025

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 13
Issue Number: 1
2.4 Operating modes
The drive is designed to operate in any of the following modes:
1. Open loop mode
Open loop vector mode
Fixed V/F mode (V/Hz)
Square V/F mode (V/Hz)
2. RFC - A
Without position feedback sensor
2.4.1 Open loop mode
The drive applies power to the motor at frequencies varied by the user. The motor speed is a result of the output frequency of the drive and slip due
to the mechanical load. The drive can improve the speed control of the motor by applying slip compensation. The performance at low speed depends
on whether V/F mode or open loop vector mode is selected.
Open loop vector mode
The voltage applied to the motor is directly proportional to the frequency except at low speed where the drive uses motor parameters to apply the
correct voltage to keep the flux constant under varying load conditions.
Typically 100 % torque is available down to 1 Hz for a 50 Hz motor.
Fixed V/F mode
The voltage applied to the motor is directly proportional to the frequency except at low speed where a voltage boost is provided which is set by the
user. This mode can be used for multi-motor applications.
Typically 100 % torque is available down to 4 Hz for a 50 Hz motor.
Square V/F mode
The voltage applied to the motor is directly proportional to the square of the frequency except at low speed where a voltage boost is provided which is
set by the user. This mode can be used for running fan or pump applications with quadratic load characteristics or for multi-motor applications. This
mode is not suitable for applications requiring a high starting torque.
2.4.2 RFC-A mode
Rotor Flux Control for Asynchronous (induction) motors (RFC-A) encompasses closed loop vector control without a position feedback device.
Rotor flux control provides closed loop control without the need for position feedback by using current, voltages and key motor parameters to estimate
the motor speed. It can eliminate instability traditionally associated with open loop control for example when operating large motors with light loads at
low frequencies.
2.5 Keypad and display
The keypad and display provide information to the user regarding the operating status of the drive and trip codes, and provide the means for changing
parameters, stopping and starting the drive, and the ability to perform a drive reset.
Figure 2-2 CI-Keypad
The keypad is not supplied with the drive.
4
2
3
16
5
1. Escape button
2. Start button (Green)
3. Navigation keys (x4)
4. Stop / Reset button (red)
5. Status LED
6. Enter button
NOTE

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
14 Unidrive M400 Control User Guide
Issue Number: 1
2.6 Nameplate description
Figure 2-3 Typical drive rating labels size 2
Refer to Figure 2-1 Model number on page 11 for further information relating to the labels.
Date code format
The date code is split into two sections: a letter followed by a number. The letter indicates the year, and the number indicates the week number (within
the year) in which the drive was built.The letters go in alphabetical order, starting with A in 1991 (B in 1992, C in 1993 etc).
Example:
A date code of W28 would correspond to week 28 of year 2013.
Modelnumber
Refer to
User Guide
Date code
Input
voltage Power rating
M400-022 00042 A
200-240V 0.75kW
V40
Model
number
Input voltage
Output
voltage
Serial
number
Input
frequency
Power
rating
Date code
No. ofphases &
Typical input current
Heavy duty
output current
Approvals
M400-022 00042 A 0.75kW
10.4A / 5.4A
Patents: www.ctpatents.info
Manuals: www.ctmanuals.info
0-550Hz
Output
frequency
CE approval Europe
RCM - Regulatory
Compliance Mark Australia
UL / cUL approval USA &
Canada
RoHS compliant Europe
Functional safety USA &
Canada
EurAsian Conformity EurAsia
R
Key to approvals
NOTE

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 15
Issue Number: 1
2.7 Options
Figure 2-4 Options available with the drive
1. Remote mountable LCD keypad
2. AI-Backup adaptor
3. AI-485 Adaptor
4. Compact Interface (CI) keypad
5. CI-485 Adaptor interface
6. System Integration (SI) module
7. CT USB Comms cable
4
6
1
3
3
2
5
7

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
16 Unidrive M400 Control User Guide
Issue Number: 1
Table 2-1 System Integration (SI) option module identification
Table 2-2 Adaptor Interface (AI) option module identification
Type Option module Color Name Further details
Fieldbus
Purple SI-PROFIBUS Profibus option
PROFIBUS adaptor for communications with the drive
Medium
Grey SI-DeviceNet DeviceNet option
DeviceNet adaptor for communications with the drive
Light Grey SI-CANopen CANopen option
CANopen adaptor for communications with the drive
Yellow
Green SI-PROFINET V2 PROFINET V2 option
PROFINET V2 adapter for communications with the drive
Beige SI-Ethernet
External Ethernet module that supports EtherNet/IP, Modbus
TCP/IP and RTMoE. The module can be used to provide global
connectivity and integration with IT network technologies, such as
wireless networking
Brown Red SI-EtherCAT EtherCAT option
EtherCAT adapter for communications with the drive
Automation
(I/O expansion) Orange SI-I/O
Extended I/O
Increases the I/O capability by adding the following combinations:
• Digital I/O
• Digital Inputs
• Analog Inputs (differential or single ended)
• Relays
Type Option module Name Further details
Communications AI-485 adaptor
EIA 485 serial communications option
Provides a EIA 485 serial communications interface via an RJ45
connector or alternative screw terminals.
Backup
AI-Backup adaptor +24 V Backup and SD card interface
Provides a +24 V Backup supply input and SD card interface
AI-Smart adaptor
+24 V Backup and SD card interface
Supplied with 4 GB SD Card for parameter copying and
application programs, and an input for 24 V Backup

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 17
Issue Number: 1
Table 2-3 Keypad identification
Table 2-4 Compact Interface (CI) option module identification
Type Keypad Name Further Details
Keypad
Remote-Keypad Remote LCD keypad option
Remote Keypad with a LCD display
CI-Keypad LCD keypad option
Keypad with a LCD display
Remote-Keypad RTC Remote LCD keypad option
Remote Keypad with a LCD display and real time clock
Type Option Name Further Details
Communications CI-485 Adaptor EIA 485 serial communications option
Provides a EIA 485 serial communications interface via an RJ45 connector.

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
18 Unidrive M400 Control User Guide
Issue Number: 1
3 Mechanical installation
3.1 Installing / removing options and keypad
Figure 3-1 Installation of an SI option module (size 2 to 4)
• With the option module tilted slightly backwards, align and locate the two holes in the rear of the option module onto the two tabs (1) on the drive.
• Press the option module onto the drive as shown in (2) until the connector mates with the drive, ensuring that the tab (3) retains the option module
in place.
Check that the option module is securely located on the drive. Always ensure that the terminal cover is always replaced before use as this ensures
that the option module is firmly secured.
Figure 3-2 Removal of an SI option module (size 2 to 4)
• Press down on the tab (1) to release the option module from the drive housing as shown.
• Tilt the option module slightly towards you and pull away from the drive housing (2).
Power down the drive before installing / removing the SI option module. Failure to do so may result in damage to the product.
CAUTION
1
2
3
NOTE
12

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
Unidrive M400 Control User Guide 19
Issue Number: 1
Figure 3-3 Installation of an SI option module (size 5 to 9)
• Move the option module in the direction shown (1).
• Align and insert the option module tab into the slot provided. This is shown in the detailed view (A).
• Press down on the option module until it locks into place.
Figure 3-4 Removal of an SI option module (size 5 to 9)
• To release the option module from the drive housing, press down on the tab (1) as shown in detailed view (A).
• Tilt the option module towards you as shown in (2).
• Remove the option module by lifting away from the drive as shown in (3).
1
A
2
13

Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Basic
parameters
Running
the motor Optimization NV Media Card Operation
Onboard
PLC
Advanced
parameters Diagnostics UL information
20 Unidrive M400 Control User Guide
Issue Number: 1
Figure 3-5 Installing the AI-485 / AI-Backup Adaptor to the drive (AI-485 Adaptor shown)
1. Identify the two plastic fingers on the underside of the AI-485 / AI-Backup Adaptor (1) - then insert the two fingers into the corresponding slots in
the spring loaded sliding cover on the top of the drive.
2. Hold the adaptor firmly and push the spring loaded protective cover towards the back of the drive to expose the connector block (2) below.
3. Press the adaptor downwards (3) until the adaptor connector locates into the drive connection below.
Figure 3-6 Removal of the AI-485 / AI-Backup adaptor (AI-485 Adaptor shown)
* To remove the AI-485 / AI-Backup Adaptor, pull it up and away from the drive in the direction shown (1)
1
2
3
1