Control Techniques Dinverter A User manual

User Guide
DinverterDinverter AA
EF
Part Number: 0446–0023 Issue Number: 9
Variable Speed Drive
for 3-phase induction motors
0.25kW to 0.75kW

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 (Drive) with the motor.
The contents of this User 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 User Guide, without notice.
All rights reserved. No parts of this User 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.
Use within the European Union, etc
The following information applies where the end use of the Drive is within the European
Union, the European Economic Area, or other regions which have implemented Directives
of the European Council or equivalent measures.
The Drive complies with the Low Voltage Directive 73/23/EEC.
The installer is responsible for ensuring that the equipment into which the Drive is
incorporated complies with all relevant Directives.
The complete equipment into which the Drive is incorporated must comply with the EMC
Directive 89/336/EEC.
If the Drive is incorporated into a machine, the manufacturer is responsible for ensuring
that the machine complies with the Machinery Directive 89/392/EEC. In particular, the
electrical equipment should generally comply with European Harmonised Standard
EN60204-1.
Important... Drive 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 variable speed
drives 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 variable speed drives returned from a Control Techniques Service
Centre.
If there is any doubt, contact a Control Techniques Drive Centre.
Copyright © November 1999 Control Techniques Drives Ltd
Author: RFD
Issue Code: d2au9
Issue Date: November 1999
S/W Version: V2.01

Dinverter A
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Contents
1 Introduction 1
2 Safety information 5
3 Data 7
4 Installing the Drive 12
4.1 EMC considerations 14
4.2 Environmental requirements 15
4.3 Planning the installation 16
4.4 Installing the Drive and optional RFI filter 20
4.5 Wiring recommendations 35
4.6 Bench testing the Drive 54
5 Programming instructions 56
5.1 Introduction to the display and keypad 56
5.2 Procedures 59
6 Setting up the Drive for the application 68
6.1 Preparation 68
6.2 Configuring the Drive for the motor 69
6.3 Checking operation in Terminal mode 70
6.4 Checking operation in Keypad mode 71
6.5 Making adjustments 72
7 Menu 0 parameters 73
8 Diagnostics 84
8.1 Status messages 84
8.2 Warning indications 85
8.3 When a trip occurs 85
8.4 Trip codes 86
9 Security 88
9.1 Introduction to the security system 88
9.2 Security procedures 90

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Declaration of Conformity
Control Techniques plc,
The Gro, Newtown, Powys, UK, SY16 3BE
DIN1220025A DIN1220037A DIN1220055A DIN1220075A
The AC variable speed drive products listed above have been designed and
manufactured in accordance with the following European harmonized,
national and international standards:
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
EN50081-1 Generic emission standard for the residential, commercial and light industrial
environment
EN50081-2 Generic emission standard for the industrial environment
EN50082-2 Generic immunity standard for the industrial environment
EN61800-3 Adjustable speed electrical power drive systems – Part 3: EMC product standard
including specific test methods
This product complies with the Low Voltage Directive 73/23/EEC, the
Electromagnetic Compatibility (EMC) Directive 89/336/EEC and the
CE Marking Directive 93/68/EEC.
W. Drury
Technical Director
Newtown
Date: 22nd January 1997
These electronic Drive products are intended to be used with an appropriate motor,
controller, electrical protection components and other equipment to form a complete
end product or system. The Drive must be installed only 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 this User
Guide or the Dinverter AEMC Data Sheet for further information on EMC
standards complied with by the product, and for guidelines on installation.

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1 Introduction
1.1 How this User Guide can help you
By following this User Guide chapter-by-chapter, you will be taken in a
logical sequence through the steps required for installing, performing basic
programming and setting up the Dinverter for basic applications.
Your and other people’s safety, and the requirements of EC directives (when
applicable), depend on your understanding the information and adhering to
the instructions in this User Guide.
1.2 Advanced functions
This User Guide covers the basic functions of the Dinverter which are
intended for the majority of applications. The Dinverter also has advanced
functions which are covered in the Dinverter ATechnical Reference
Manual. (This can be obtained from a Control Techniques distributor or
Drive Centre listed at the end of this User Guide.) The advanced functions
are as follows:
Speed control
• Second analog speed reference input (20mA current loop having
four options plus a low-voltage high-impedance input)
• 8 adjustable preset speed references
• Adjustable preset precision speed reference
• Remote selection of speed references
• Incremental speed control from external contacts
(motorized potentiometer)
• Separate speed limits for forward and reverse operation
• 3 adjustable skip-speed bands
• Slip compensation
• Selection of PWM switching frequencies allowing output frequencies
up to 960Hz
• Adjustable preset jog speed
Torque control
• Torque control with maximum speed limit
Ramps
• 8 preset acceleration ramps plus 8 preset deceleration ramps which
can be split into 4 forward and 4 reverse
• Separate acceleration and deceleration ramps for jogging
• Remote selection of ramps
Starting
• 2 auto-start modes

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Stopping and braking
• Dynamic control of braking with or without an external
braking resistor
• Selection of 4 ways to stop the motor including by
DC injection braking
Digital control
• Selection of 5 digital control modes for remote control of start,
stop, reverse and jog
• Control from the keypad or by remote signals, or a combination of
these
Programmable I/O
• Analog and digital I/O fully programmable for alternative functions
Security
• Two security levels for protection against unauthorized adjustment
of the software
Motor protection
• Current limit (short-term overload)
• Thermal protection (long-term overload)
• Protection trips with a trip log
Monitoring
• Zero speed and at speed indications
• Pre-warning for motor overheating
• Status and diagnostic information
Auxiliary functions
• Serial communications (2-wire RS485 half-duplex) for remote
control by a system controller, and/or for expansion of the I/O
• The Dinverter can be stopped by process-generated trips
• Programmable motorized potentiometer
• Un-dedicated programmable logic
• Un-dedicated programmable comparator
In addition to information for the advanced functions, the Dinverter A
Technical Reference Manual contains the following:
• Advanced data
• Calculating enclosure sizes and cooling
• Connecting a braking resistor
• EMC wiring variations

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1.3 Bench-testing the Dinverter
If this is your first encounter with a Dinverter, you may wish to understand
more fully how it works by performing a bench-test before installing it. In
this case, after reading Chapter 1, refer to Chapter 2 Safety information,
then Bench-testing the Drive – making temporary connections in Chapter 4
Installing the Drive.
1.4 Methods of control
The Drive can be controlled by any of the following methods:
Terminal mode
Applying signals from electrical contacts, a controller or PLC to digital inputs
on the Drive.
Keypad mode
Manual operation of the keypad on the front panel of the Drive; apart from
two wire-links to be connected to a terminal block, no external signal
connections are made to the Drive.
Serial communications
Using a system controller or PLC connected to the Drive by a 2-wire RS485
serial communications link (can be used in conjuction with Terminal mode or
Keypad mode).

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2 Safety Information
2.1 Warnings, Cautions and Notes
A Warning contains information which is essential for avoiding a safety
hazard.
A Caution contains information which is necessary for avoiding a risk of
damage to the product or other equipment.
A Note contains information which helps to ensure correct operation of the
product.
2.2 Electrical safety – general warning
The voltages used in the Drive can cause severe electric 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 beginning of the installation instructions
in this User Guide.
The installation must comply with all relevant safety legislation in the
country of use.
2.3 System design
The Drive is intended as a component for professional incorporation into
complete equipment or systems. 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 mechanical
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 and experience. They must read this safety information and this
User 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 protection.
2.4 Environmental limits
The instructions in this User Guide regarding transport, storage, installation
and use of Drives must be complied with, including the specified
environmental limits. Drives must not be subjected to excessive physical
force.

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2.5 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 User Guide contains instructions for achieving compliance with specific
EMC standards.
2.6 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.
2.7 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 over-heat because the cooling fan
becomes less effective. The motor should then be fitted with a protection
thermistor. If necessary, a separate cooling fan should be used.

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2.8 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.
2.9 Safety of personnel
The Stop and Start controls or electrical inputs of the Drive should 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 should be installed to prevent the motor being
inadvertently started.
The DC bus will remain energized if a voltage is applied to the output
terminals of the Drive.
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, a separate method of braking and stopping the motor should be
used (eg. 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 put at risk. Carefully follow
the instructions in this User Guide.
Before making adjustments to the Drive, ensure all personnel in the area are
warned. Make notes of all adjustments that are made.
Never work on a variable speed drive on your own: ensure that a suitably
qualified person is present to assist in an emergency.

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3 Data
3.1 Dinverter
Table 3–1 Power, voltage and current ratings
150% overload output current for 60 seconds maximum
Max. continuous 100% RMS output current (FLC)
Max. continuous 100% RMS AC input current
Continuous motor shaft power
AC supply voltage
Number of
AC supply phases
Model
V kWHPAAA
DIN1220025A 1 200 ~ 240 ±10% 0.25 0.33 3.9 1.5 2.3
DIN1220037A 1 200 ~ 240 ±10% 0.37 0.50 5.7 2.3 3.5
DIN1220055A 1 200 ~ 240 ±10% 0.55 0.75 8.4 3.0 4.5
DIN1220075A 1 200 ~ 240 ±10% 0.75 1.00 11.5 4.3 6.5
Motor
requirements Number of phases: 3
Voltage: 200V to 240V ±10% (normally delta connected)
Power rating: 0.25kW (0.33HP) to 0.75kW (1HP)
Temperature,
humidity
and cooling
method
Ambient temperature range: –10°C to 50°C (14°F to 122°F). Output
current derating may apply at high ambient temperatures.
Storage temperature range: –40°C to 50°C (–40°F to 122°F)
Humidity: 85% non-condensing
Cooling method: Natural convection
Ingress
protection Gland plate not fitted: IP00
Gland plate fitted; cable glands not fitted: IP10
Cable-glands fitted: IP20
Overall
dimensions These dimensions exclude the mounting brackets.
Height: 140mm (51/2in)
Width: 75mm (3 in)
Depth: 192mm (71/2in)
Weight Approximate weight of each model: 1.2kg (2lb 11oz)

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Electro-
magnetic
compatibility
(EMC)
This is a summary of the EMC performance of the Drive. For full details,
refer to the Dinverter A EMC Data Sheet which can be obtained from a Drive
Centre or distributor listed at the end of this User Guide.
Immunity
Compliance with immunity standards does not depend on installation
details. Single and parallel Drive modules meet EN50082–2 (generic
immunity standard for the industrial environment) and the following
specifications from the IEC1000–4 group (derived from IEC801):
Part 2, Electrostatic discharge: Level 3
Part 3, Radio frequency field: Level 3
Part 4 Transient burst:
Level 4 at the control terminals
Level 3 at the power terminals
Part 5, Surge (at the AC supply terminals) (as specified by EN50082–2
informative annex):
Level 4 line-to-ground
Level 3 line-to-line
Part 6, Conducted radio frequency: Level 3
Emission
Compliance with emission standards depends on rigorous adherence to the
installation guidelines, including the use of the specified RFI filter in the AC
supply circuit. Compliance also depends on the PWM switching frequency
used in the output stage of the Drive, and the length of the motor cable.
For full details, refer to the Dinverter A EMC Data Sheet which can be obtained
from a Drive Centre or distributor listed at the end of this User Guide.
Conducted emission from the Drive meets the requirements of EN50081–2
(generic emission standard for the industrial environment) over a wide range
of conditions. In addition, the Drive meets the radiated emission
requirements of this standard. The emission limits in EN50081–2 are similar
to CISPR11 and EN55011 Class A.
Under restricted conditions, the conducted emission meets EN50081–1
(generic emission standard for the residential, commercial and light
industrial environment. This is similar to CISPR11 and EN55011 Class B.
The optional RFI filter model number DIN 1012F must be used.

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Power Drive Systems standard EN61800–3
The Drive meets the immunity requirements of EN61800–3 irrespective of
the environment in which it is operating.
The emission requirements of this standard are also met depending on the
environment category, as follows:
First environment: Restricted distribution only: specified RFI filter
required
Second environment: No RFI filter required (but RFI filter(s) are
recommended where sensitive electronic systems are operating
nearby); emission limits are under consideration
EN61800–3 defines the first environment as one that includes domestic
premises. It also includes establishments directly connected without
intermediate transformers to a low-voltage power supply network which
supplies buildings used for domestic purposes.
The second environment is one that includes all establishments other than
those directly connected to a low-voltage power supply network which
supplies buildings used for domestic purposes.
Restricted distribution is defined as a mode of sales distribution in which the
manufacturer restricts the supply of equipment to suppliers, customers or
users who separately or jointly have technical competence in the EMC
requirements of the application of Drives.
Note
If a Power Drive System is included as part of equipment
covered by a separate EMC product standard, the EMC
standard for the complete equipment applies.
Frequencies AC supply frequency: 50Hz to 60Hz ±2Hz
PWM switching frequency: 3kHz nominal (selectable up to 12kHz)
Maximum output frequency: 240Hz (up to 960Hz)
For operation at PWM switching frequencies above 3kHz, refer to the
Dinverter ATechnical Reference Manual.
Accuracy
and
resolution
The following data applies to the Drive only; it does not include the
performance of the source of the control signals.
Output frequency accuracy: ±0.01%
Output frequency resolution:
0.001Hz up to 480Hz
0.002Hz from 480Hz to 960Hz
Output voltage accuracy: depends on AC supply stability
Output voltage resolution: 0.4%
Tracking-accuracy of output current to changes in load:
±10% above 20Hz (with a motor matched to the Drive)
Tracking-resolution of output current to changes in load: 0.1%

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Table 3–2 Heat dissipation and surge-current
Model Maximum dissipation at... Surge-current at
power-up *
3kHz 6kHz 9kHz 12kHz 50Hz
60Hz
WWWW A
A
DIN1220025A 17.3 19.1 19.9 21.3 55
66
DIN1220037A 22.1 24.4 27.1 29.9 55
66
DIN1220055A 26.1 29.3 34.5 38.3 110
130
DIN1220075A 39.9 45.7 50.9 55.9 110
130
* Surge current at the instant the AC supply is connected to the Drive:
worst-case values of half sine-wave current pulse of a quarter-cycle
duration; unlimited repetition rate.
3.2 Optional RFI filter (DIN1012F)
Electrical
ratings Maximum current: 12ARMS
Maximum power dissipation: 8W
Voltage-drop at 12A: 1V maximum
Ambient
temperature Above 40°C (104°F), the current rating is reduced by 0.2A/°C (0.11A/°F).
Weight 0.65kg (1lb 6oz)
Overall
dimensions These dimensions exclude the mounting brackets.
Height: 140mm (51/2in)
Width: 40mm (1 9/16 in)
Depth: 192mm (71/2in)

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Table 3–3 Conducted emission
Maximum length
of motor cable
PWM switching frequency
of the Drive
metres feet 3kHz
6kHz
9kHz 12kHz
516.5[R]
[R]
[R] [R]
10 33 [R] *
[R] *
[I] * [I] *
15 50 R *
I *
I * I *
20 65 R *
I *
I * I *
50 165 I *
I *
I * I *
100 330 X
I *
I * X
[R] Residential requirements are met when the RFI filter is in
standard mode or long-cable mode
R Residential requirements are met only when the the RFI filter is in
long-cable mode
[I] Industrial requirements are met when the RFI filter is in standard
mode or long-cable mode
I Industrial requirements are met only when the the RFI filter is in
long-cable mode
*The
AC supply cable must be shielded
X industrial limit is exceeded
Table 3–4 Maximum ground leakage current
Standard mode 2.7mA at 240V 50Hz
3.0mA at 220V 60Hz
Long-cable mode 52.5mA at 240V 50Hz
57.5mA at 220V 60Hz

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4 Installing the Drive
Warning
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.
Installation in an enclosure
The Drive case conforms to IP10 or IP20 in accordance with
IEC529 (see Chapter 3 Data). The Drive is designed for
installation in an enclosure (type 1 as defined in UL508C,
Table 7.1) to protect the Drive from contamination.
Authorized access
The enclosure should prevent access by all personnel except
for authorized, trained service personnel.
Fire enclosure
The Drive case is not classified as a fire enclosure. To meet
this requirement, the Drive must be installed in a fire
enclosure.
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

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Isolation device
The AC supply must be disconnected from the Drive using an
approved isolation device before any cover is removed
from the Drive or before any servicing work is performed.
Stored charge
The Drive contains capacitors that remain charged to a
potentially lethal voltage after the AC supply has been
disconnected. If the Drive has been energized, the AC supply
must be isolated at least eight minutes before work may
continue.
Normally, the capacitors are discharged by an internal
resistor. Under certain, unusual fault conditions, it is
possible that the capacitors may fail to be discharged, or be
prevented from being discharged by a voltage applied to
the output terminals. If the Drive has failed in a manner
that causes the display to go blank immediately, it is
possible the capacitors will not be discharged. In this case,
consult Control Techniques or their authorized distributor.
AC supply by plug and socket
Special attention must be given if the Drive is installed in
equipment which is connected to the AC supply by a plug
and socket. The AC supply terminals of the Drive are
connected to the internal capacitors through rectifier
diodes which do not give reliable isolation. If the plug
terminals can be touched when the plug is disconnected
from the socket, a means of automatically isolating the plug
from the Drive must be used (eg. a latching relay).
Water ingress
The Drive has no protection against water ingress.
Ventilation holes
When the vent covers are not fitted, objects less than 3mm
(1/8in) diameter can pass through the vent holes and
possibly make contact with live parts inside the Drive.
Cable entry
When cable glands are not fitted, objects less than 25mm
(1 in) wide can pass through the cable entry opening and
possibly make contact with live parts inside the Drive.
STOP function
The STOP function does not remove dangerous voltages
from the Drive or any external option units.

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4.1 EMC considerations
Depending on the requirements of the installation, one of the following
levels of electromagnetic compatibility (EMC) should be adopted:
Routine EMC precautions
These precautions are recommended when strict compliance with
emission standards is not required. The risk of disturbing adjacent
electronic equipment is minimized by adopting these precautions.
Compliance with EMC emission standards
These precautions are recommended when strict compliance with
emission standards is required. In addition, it is recommended that
these precautions are taken when the Drive is installed in a residential
area, or adjacent to sensitive electronic equipment such as radio
receivers or similar.
Compliance with EN61800-3 (standard for Power Drive Systems)
Meeting the requirements of this standard depends on the
environment that the Drive is intended to operate in, as follows:
Operation in the first environment
Observe the guidelines given in Power Drives System standard in
Chapter 3 Data. An RFI filter will always be required.
Operation in the second environment
An RFI filter may not be required. Follow the guidelines given in Power
Drives System standard later in this chapter depending on the
requirements of the end user.
Caution
The second environment typically includes an industrial low-
voltage power supply network which does not supply
buildings used for domestic purposes. Operating the Drive
in this environment without an RFI filter may cause
interference to nearby electronic equipment whose
sensitivity has not been appreciated. The user must take
remedial measures if this situation arises. If the
consequences of unexpected disturbances are severe, it is
recommended that the emission limits of EN50081-2 be
adhered to.
Instructions are given later in this chapter for these levels of EMC. Refer to
Chapter 3 Data for further information on compliance with EMC standards
and definitions of environments.
Detailed instructions and EMC information are given in the Dinverter A EMC
Data Sheet which is available from the Drive Centres and distributors listed at
the end of the User Guide.

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Note
The installer of the Drive is responsible for ensuring
compliance with the EMC regulations that apply where the
Drive is to be used.
The Drive will comply with the standards for emission,
such as EN50081–2, only when the instructions given in
Planning the installation and Wiring recommendations later in
this chapter are followed closely.
4.2 Environmental requirements
The environment must be acceptable (see Chapter 3 Data). Note that, for
models DIN1220055A and DIN12200075A, a high ambient temperature can
limit the maximum output current.
When compliance with EMC emissions standards is required, the enclosure
must be made of metal but does not require special EMC features. The
requirements given in Wiring recommendations later in this chapter must be
observed.
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.
The Drive must not be located in a classified hazardous area unless the Drive
is installed in an approved enclosure and the installation is certified.
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.
If the Drive is to be mounted beneath other equipment, such as another
Drive, the Drive should not cause the ambient temperature requirements of
the equipment to be exceeded.
When compliance with EMC emissions standards is required, an RFI filter
must be installed at the side of each Drive.
The installation must meet the electrical safety requirements specified by
the end-user.
The planned size of the installation will not exceed the space available.

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4.3 Planning the installation
Temperature de-rating
1 Refer to Figure 4–1 to find the maximum ambient temperature that is
permissible at the required maximum output current. Make a note of
this value.
50
40
30
122
104
86
°C °F
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.50
4.3A
25°C
77°F
Motor current (A)
Ambient
temperature 1.55A
20 68
10 50
032
1.85A
15°C
59°F
2.3A2.1A
20°C
68°F
10°C
50°F
3kHz
6kHz
9kHz
12kHz
Figure 4–1 De-rating curves for all model sizes at 3kHz PWM switching
frequency (other frequencies shown for reference)
Length of motor cable
RFI-filter ground-leakage current
When compliance with EMC emissions standards is required, and the length
of the motor cable is to exceed 15 metres (50 feet), it is possible a
compromise will need to be made for the following:
• Motor cable length
• The ground-leakage current of the RFI filter
Note
When compliance with EMC emission standards is required,
the length of the motor cable must not exceed 100 metres
(330 feet).