Artesis AMT Toolkit User manual

PS.01-KL.11-REV:00
Artesis Asset Management Toolkit (AMT)
Users Manual
AMT Toolkit*
NO CHANGES ALLOWED
TO THIS MANUAL
WITHOUT PRIOR
APPROVAL FROM
APPLICABLE APPROVALS
AGENCIES

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© 2012 Artesis
All rights reserved.
The information contained in this document is subject to change without notice.
* Denotes a trademark of Artesis.
AMT Toolkit
The following are trademarks of the legal entities cited:
Printed in Turkey. Uncontrolled when transmitted electronically.
Contact Information
The following contact information is provided for those times when you cannot contact
your local representative:
Mailing Address
Artesis A.Ş.
Kemal Nehrozoğlu Cad. GOSB
Teknoparkı
Hightech Binası Kat: 3/B 10
Gebze 41480 Kocaeli/Turkey
Telephone
[phone]
Fax
[phone]
Internet
www.artesis.com

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Additional Information
WARNING
Lethal voltages and currents are present at the input terminals of
this device. Accordingly, this AMT Toolkit should be installed and
maintained only by qualified, competent personnel who have the
necessary training and experience appropriate to high voltage and
current devices. AMT Toolkit must be used in accordance with all
local and national codes for the installation and operation of
electrical equipment. Observe all site-specific procedures including
local lockout and tagout.
Recommended safety precautions should be followed at all times.
Both current and voltage transformers can present lethal currents
and voltages when their primaries are energized and standard
practices (i.e. shorting the secondaries of current transformers
and removing voltage transformer fuses) must be respected
during installation or any subsequent service.
Disclaimer
Maintenance planning information as well as its timing is issued based on the observations
in the field and is approximate and considers the average behavior of different types of
equipment. Since each piece of equipment and conditions under which it runs may be
different, actual failure periods may be different. Therefore, it is recommended that
maintenance actions and their timing indicated in the AMT Condition Assessment Report
should be used only as a guide and the indicated abnormalities should be checked and
remedied as soon as feasible.
Product Disposal Statement
Customers and third parties, who are not member states of the European Union, who are in
control of the product at the end of its life or at the end of its use, are solely responsible for
the proper disposal of the product. No person, firm, corporation, association or agency that
is in control of product shall dispose of it in a manner that is in violation of any applicable
federal, state, local or international law. Artesis is not responsible for the disposal of the
product at the end of its life or at the end of its use.

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Contents
AMT Toolkit................................................................................................................... 1
1. Overview ................................................................................................6
1.1. Introduction .............................................................................................................. 6
1.2. Use of this manual .................................................................................................... 6
2. Installation and Data Acquisition ............................................................7
2.1. Preliminary checks.................................................................................................... 7
2.2. Safety Notes.............................................................................................................. 7
2.2.1. Safety related symbols on the device............................................................... 8
2.3. AES for AMT Software............................................................................................... 8
2.4. Getting Started.......................................................................................................... 9
2.5. Installation ................................................................................................................ 9
2.6. Applying power to the AMU unit............................................................................ 13
2.7. Installing with soft-starter systems ........................................................................ 13
3. AMU Use............................................................................................... 15
3.1. Introduction ............................................................................................................ 15
3.2. The front panel ....................................................................................................... 15
3.2.1. Confirming ENTER and CLEAR......................................................................... 15
3.2.2. Using the front panel buttons ........................................................................ 16
3.2.3. Setting numeric values.................................................................................... 16
3.3. Configuring for use ................................................................................................. 16
3.3.1. Master reset.................................................................................................... 16
3.3.2. Entering the password.................................................................................... 17
3.3.3. The Edit settings menu ................................................................................... 17
3.3.3.1. First time use .............................................................................................. 17
3.3.3.2. Calibration factors....................................................................................... 18
3.3.3.3. Motor settings ............................................................................................ 18
3.3.3.4. Communication settings............................................................................. 19
3.4. Running AMU.......................................................................................................... 19
3.4.1. Introduction .................................................................................................... 19
3.4.2. Alarm messages and status indication ........................................................... 19
3.4.2.1. Alarms specific to the motor ...................................................................... 19
3.4.2.2. Viewing alarm messages............................................................................. 20
3.4.3. Running CHECK MOTOR.................................................................................. 21
3.4.3.1. Check mode command ............................................................................... 21

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3.4.4. Setting and checking the input connections .................................................. 22
3.4.5. Running LEARN and IMPROVE........................................................................ 23
3.4.5.1. LEARN.......................................................................................................... 23
3.4.5.2. IMPROVE..................................................................................................... 23
3.4.5.3. Iteration cycle time..................................................................................... 24
3.4.5.4. Alarms during the IMPROVE mode............................................................. 25
3.4.5.5. Using an inverter drive................................................................................ 25
3.4.6. Running RESUME and UPDATE....................................................................... 26
3.4.6.1. Canceling running ....................................................................................... 26
3.4.7. Advanced use.................................................................................................. 26
3.4.7.1. Monitoring motor and line parameters...................................................... 28
4. Equipment Faults, Diagnosis and Reporting.......................................... 29
4.1. Equipment Faults and their diagnoses using AMT Toolkit ..................................... 29
4.2. Reporting ................................................................................................................ 30
4.3. Advance Use; Power Spectral Density.................................................................... 37
4.4. Advance Use; Waveform ........................................................................................ 38
5. Troubleshooting ................................................................................... 39
5.1. Introduction ............................................................................................................ 39
5.2. Use of the AMU Config utility................................................................................. 39
5.2.1. Fault Diagnosis................................................................................................ 39
5.3. Servicing.................................................................................................................. 41
5.4. Cleaning .................................................................................................................. 41
6. AES for AMT Software .......................................................................... 42
6.1. Company and Motors ............................................................................................. 42
6.1.1. Company Information..................................................................................... 42
6.1.2. Motors............................................................................................................. 42
6.2. Reports.................................................................................................................... 43
6.2.1. Report Assignment and Viewing..................................................................... 43
6.2.2. PSD.................................................................................................................. 46
6.2.3. Waveform ....................................................................................................... 47
6.2.4. New Report from DB....................................................................................... 48
6.3. Settings ................................................................................................................... 48
6.3.1. License............................................................................................................. 48
7. Appendices........................................................................................... 50
7.1. Appendix 1: AMU Error, alarm and warning conditions ........................................ 50
7.1.1. Error Conditions.............................................................................................. 50

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7.1.2. Alarm Conditions ............................................................................................ 51
7.1.3. Warning Conditions ........................................................................................ 53
7.2. Appendix 2: Current and voltage transformer selection........................................ 54
7.3. Appendix 3: Connection Diagrams for AMT Toolkit ............................................... 55
7.3.1. Low voltage line driven motors with current transformers ........................... 55
7.3.2. Low voltage inverter driven motors with current transformers .................... 56
7.3.3. Low voltage line driven star/delta connected motors ................................... 56
7.3.4. SoftStarter....................................................................................................... 57
7.4. Appendix 4: Menu settings and parameters of AMU Unit..................................... 58
7.5. Appendix 5: Edit Settings Menu items.................................................................... 59
7.6. Appendix 6: Flowcharts for AMU use..................................................................... 67
7.6.1. Running AMU: Edit Settings and Check Motor............................................... 67
7.6.2. Running AMU: Learn....................................................................................... 68
7.6.3. Running AMU: MONITOR / IMPROVE / UPDATE............................................ 69
7.6.4. Running AMU: Alarm conditions .................................................................... 70
7.7. Appendix 7: Technical Specifications of AMT Toolkit............................................. 73
7.8. Appendix 8: Technical Specifications of AMU Unit ................................................ 74
7.9. Appendix 9: Compliance and Certification of AMU Unit (Artesis MCM)................ 76

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1. Overview
1.1. Introduction
AMT Toolkit is a revolutionary portable tool in the battle to keep electric motors and
machinery running at peak performance, whilst maintaining high plant productivity levels.
Used correctly, this unique instrument is capable of monitoring three phase AC motors and
generators (as well as driven equipment) of all sizes and power levels to provide clear,
unambiguous indications when the performance of a particular motor driven equipment
begins to degrade. The numerous transducers employed by other, less advanced
instruments have been replaced by three current sensors and three voltage sensors,
familiar to all those involved with the measurement of electrical quantities, making the
system straightforward to install and use without in-depth training of personnel.
Artesis AMT Toolkit is equipped with a computer, Asset Management Units for data
processing, Artesis Enterprise Software for Asset Management (AES for AMT) for generating
a condition assessment report, current transformers, and cables. Artesis AMT Toolkit is
connected to motor cables using current sensors and voltage cables and it collects data
from motor driven system and saves to SQL database. At the end of testing period, toolkit
generates a condition assessment report which indicates existing failures in the system,
recommended corrective action, and the effects of these faults on energy efficiency.
Artesis AMT Toolkit is used to collect data for thirty minutes from motor driven equipment
to generate an instant condition assessment report. The total duration of test is
approximately one and a half hour including the installation, stopping and starting the
motor, data acquisition, and dismantling processes.
Despite its simplicity and ease of use, like any intelligent electronic, software-based device,
it is important that AMT Toolkit is installed and used correctly. We strongly recommend
that you take the time to study the information contained within the accompanying
manuals and to familiarize yourself with the operating principles and practices.
1.2. Use of this manual
This manual explains the basic concepts needed to install and use AMT Toolkit. For further,
specific details please contact Artesis.

AMU Installation
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2. Installation and Data Acquisition
2.1. Preliminary checks
Please inspect the contents of the AMT Toolkit package and ensure that they agree with the
information in the packing list. In the event of any missing or damaged items, please
contact your supplier immediately. Artesis will not accept responsibility for damage caused
to or by any AMT Toolkit unit that has been incorrectly installed or installed on a motor
system outside the indicated power range.
AMT Toolkit accessories include the following:
CURRENT TRANSFORMERS
Four sets of split-core current transformers. Class 1. Conforms to IEC185/BS7626 and BSEN60044-
1/ IEC 60044-1
Current transformers are 100/5A, 200/5A, 300/5A and 400/5A.
Frequency range 50 / 60 Hz
System rated voltage 0.72/3kV
Isolation voltage 3kV (1 minute)
Continuous current 1.2xrated current
CABLES
Voltage measurement cables (Fluke AC285 SureGrip™ Alligator Clips)
Current measurement cables
Power cable
Cross cable for Ethernet connection
Charging adapter for laptop
COMPUTER
Amd Dual-Core Processor C60 1.3 GHz
2 GB DDR3 RAM
320GB Hard Disk
11.6 inch LED LCD Display
MS Windows 7 Starter Operating Software
2.2. Safety Notes

AMU Installation
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WARNING
HAZARDOUS VOLTAGE
Can cause death or serious injury.
Multiple energy sources present.
See user manual before servicing.
Turn off and lock out all power supplying this device before
working on this device.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
2.2.1. Safety related symbols on the device
Risk of electric shock
General warning symbol
2.3. AES for AMT Software
AES for AMT software is the upgrade to AES Configuration Application which is basically
used to complete all configuration tasks (i.e. database settings, AMU device connection
settings, equipment hierarchy). Configuration Application is also used to set-up device
according to motor information, to get PSD and waveform data, to get and set AMU device
settings. In addition to those functions, AES for AMT Software is used to record basic
company (or plant) and its motors’ information, to match the data with the motors and to
get a report. Producing the report according to motor information and the related data is
the major feature of AES for AMT software. Including motor data, each report lists the
existing faults installed to the computer brought within AMT Toolkit. It is designed to
acquire data with a couple of clicks.

AMU Installation
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2.4. Getting Started
Before installation,
1. Ensure that AMT Toolkit includes all cables (Voltage measurement cables: Fluke AC285
SureGrip™ Alligator Clips, current measurement cables, power cable, cross cable for
ethernet connection), computer and its charging adapter.
2. Ensure that battery power of the computer is not low or charging cable is connected to
the computer.
3. Check the Motor Control Cabinet (MCC) for installation of split-core current
transformers (CTs) which are included within AMT Toolkit.
a. If it is suitable then check the motor nameplate for rated current in order to use
appropriate transformation ratio.
b. If not, check usability of existing CTs.
4. Check whether the software license is valid to be able to generate a report.
2.5. Installation
The process of connecting the AMT Toolkit system to the motor requires caution to avoid
personal injury and damage to the AMT Toolkit. Follow the steps below to collect all three
phases of the current and voltages:
AMT Toolkit Connections
1. Before setting up the AMT Toolkit, ensure that motor is not running and all switches are
off.
2. Plug the power cable.
3. Connect cross cable to the computer.

AMU Installation
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WARNING
CURRENT TRANSFORMERS
Incoming power must be de-energized before installation.
Before wiring, de-energize the CT secondary by shorting it via a
shorting block.
The current transformer must have its secondary terminals short-
circuited or connected to MCU unit, before energizing the primary
circuit.
Under no circumstances must the CT secondary be left open-
circuited, even momentarily, when primary current is flowing. This
causes high voltages that will overheat and explode the secondary
of the CT and damage the instruments as well.
Before disconnecting any MCU unit to or from a current
transformer, the secondary terminals of the transformer should be
shorted using a link capable of carrying several times the nominal
output current (i.e. at least 10A).
Current & Voltage Connections
1. Select appropriate, 1 Amp or 5 Amp, AMU for voltage and current connections. AMU
for 1 Amp is provided for direct connections to the existing current transformers with 1
Amp secondary outputs of the motors with measurement units.
2. Plug voltage sockets to AMT Toolkit and connect the alligator clips to the motor
terminals or other location for direct contact with the conductors.
3. Connections for Low Voltage (≤ 480V AC), Medium Voltage (> 480V AC) and Inverter
Driven equipment are described. Follow the steps appropriate for the motor type.
There are four sets of CTs supplied with AMT Toolkit. These are 100/5A, 200/5A,
300/5A, and 400/5A.
3.1. Low Voltage Motors: For 5 Amp AMU, plug current socket to AMT Toolkit, connect
current cables to multi ratio current transformers supplied with AMT Toolkit and
connect multi ratio current transformers to equipment's 3 phase supply cables.
Connect current cables to multi ratio current transformers as described below
according to motor’s nominal current.

AMU Installation
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Connect C2 and C1 to S1 and S2 terminals of the first CT. Connect C4 and C3 to S1 and S2
terminals of the second CT. Connect C6 and C5 current cables to S1 and S2 terminals of the
third CT.
If the MCC has existing current transformers make direct connections to those current
transformers with 5 Amp secondary output.
If the nominal current is between 0 –30 Amps and current transformers do not exist at the
measurement unit of the motor, use current transformers (NOT SUPPLIED) with appropriate
turn ratios. Turn ratios will be selected such that current inputs are between 1.5 –5 Amps
for 5 Amp AMU and between 0.3 –1 Amps for 1 Amp AMU.
3.2. Medium Voltage Motors: The test equipment has a limit of 480 volts for direct
connection. Therefore, testing on medium to high voltage motor and driven equipment
is performed by utilizing secondary circuit (low voltage) to access the currents and
voltages. Lethal voltages and currents are present at the input terminals of this
device. Accordingly, this unit must be used in accordance with all local and national
codes for the installation and operation of low voltage electrical equipment.
3.3. Inverter Driven Motors: Make sure that voltages are measured at the output terminals
of the inverter. Direct connections to the output terminals are made for low voltage
inverters. Voltage transformers (NOT SUPPLIED) are needed for medium voltage
inverters.
4. Turn the power switch of the AMT Toolkit and AMU unit on.
5. Ensure that AMU’s Power led is on.
6. Ensure that “IDLE” message appeared in the AMU’s LCD display. If the unit is not in IDLE
mode, press clear button until IDLE message appears in the LCD display.
7. Refer to section 3 for detailed information for the use of AMU unit.
Configuring AES for AMT Software
This section describes configuration of AMU unit using the “set up wizard”. Alternative
configuration is possible from the front panel by using the buttons of the AMU unit as
described in section 3.
1. Before configuring AES Configuration Application, ensure that motor is running and
voltage & current sockets are connected.

AMU Installation
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2. Select AMU model on the AES panel according to secondary amps value of current
transformers (AMU 1A or AMU 5A).
3. Right click on it.
4. Select the ‘Setup Wizard’ menu item.
5. Click ‘Next’ button.
6. Enter equipment’s ‘Nominal Voltage’, ‘Nominal Current’, ‘Frequency’ and ‘Motor
Speed’.
7. Choose connection type.
8. Click ‘Next’ button.
9. Enter voltage transformers’ conversion ratio (Default value is 1). If there are no voltage
transformers used, leave the conversion ratio as 1.
10. Click ‘Next’ button.
11. Enter current transformers’ conversion ratio (Default value is 1). e.g. if the 100/5A is
used, set the conversion ratio as 20.
12. Click ‘Next’ button.
13. Wait for 90 seconds.
14. Click physical parameters button to see the measured parameters.
15. Ensure that electrical values (currents, voltages) are same as expected and phase
ordering (see section 3.4.4) is right.
16. Click ‘Close’ button.
17. Click ‘Next’ button.
18. Click ‘No’ button.
19. Wait for the AMU device to finish ‘Learn’ and ‘Improve’ modes, and to get into
‘Monitor’ mode.
20. Right-click on the device and select “Waveform…” submenu. Download waveform data
until ‘Save’ icon enabled and save it to a text file. Close the waveform window.
21. By clicking the ‘AMT Report’ menu, open reporting user interface.
22. If the company information was not recorded before, click on ‘Companies’ group on the
left bottom on the reporting user interface or ‘Company’ menu.
23. Click ‘New Company’ button on the ‘Company’ ribbon bar and fill the company
information on the right pane.
24. Click ‘Save’ button on the ribbon bar.
25. On the motor pane, click ‘Add New Motor’ button.
26. Fill the motor information on new motor card.
27. Click ‘Save Motors’ button.
28. A motor can be removed by clicking ‘Remove Motor’ button.
29. Motor adding, editing operations can be cancelled by clicking ‘Cancel Editing’ button.
30. Click ‘Report’ menu or ‘Reports’ group on the left bottom. The companies and their
motors will be listed on the left pane.
31. Click the ‘New Report from DB’ button. The AMU devices and their data are listed on
the right pane.
32. Assign waveform text file by clicking the folder icon.

AMU Installation
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33. Drag a data from that list and drop into the related company’s motor on the left so that
the data can be assigned to a specific motor and a report is opened.
34. If you do not assign a waveform, you can assign it by selecting a report on the left and
clicking ‘Assign Waveform File’ button.
35. A report can be viewed by double-clicking on it. The report will appear on the right
pane.
36. A report can be exported as pdf file, e-mailed as attachment or previewed to print using
the ‘Export’, ‘E-Mail’, and ‘Preview and Print’ buttons on the ribbon bar, respectively.
37. The PSD and waveform graphs of a report can be viewed by clicking ‘PSD’ and ‘VI
Waveform’ tabs, respectively.
When data acquisition is done
1. Ensure that motor is not running.
2. Turn voltage, AMU, and power fuses off in order.
3. Remove current transformers.
4. Disconnect power, voltage and current cables.
2.6. Applying power to the AMU unit
Once the motor connections have been made, power should be applied to the unit. AMU
requires between 100 and 240VAC obtained from a single phase, neutral and ground. At
this stage, the Power indicator at the left of the front panel will light. If this does not occur,
please check that the correct voltages have been applied.
Immediately on application of power, the LED condition indicators should briefly flash and
activity should be seen on the main display. The text "Initializing" followed by a series of
dots will appear.
"Initializing....."
After a few seconds, the display should indicate that it is in the IDLE mode. AMU is now
ready for use. When using a device for the first time the message "Bad flash data! Press
Clear" may be displayed. In this case press the CLEAR button several times until the
message disappears.
2.7. Installing with soft-starter systems
AMU can be installed with standard soft-starter systems provided that they are
automatically bypassed immediately after motor start-up and during subsequent use. Un-
bypassed, soft-starter systems can introduce considerable distortion into the current
waveforms and thus prevent AMU from modeling the properties of the motor itself. If AMU

AMU Installation
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is to be used with such a system, it is essential that the maximum current limit of the starter
be above the nominal running motor current so that it is bypassed effectively during all
normal operation.
NOTE
AMU should never be used on a system that employs
soft-starters for speed control or other un-bypassed
uses.
Please refer to the diagrams in the appendix for details of the connections needed for soft
starter systems.
NOTE
Soft-starters should always be bypassed.

AMU Use
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3. AMU Use
3.1. Introduction
Use of AMU is both simple and straightforward once the basic concepts and principles are
understood. This section of the manual is designed to introduce these concepts and to
demonstrate how AMU is set up. It is recommended that first time users read this section
carefully, as successful operation requires that AMU is set up and used correctly.
3.2. The front panel
3.2.1. Confirming ENTER and CLEAR
Once the sensors have been connected and power has been applied to the AMU unit, the
Power indicator light should be lit. The LCD should display the message IDLE on the top line,
indicating that the unit is idle and waiting input from the user. When being used for the first
time, the message ''Bad flash data! Press Clear'' may be displayed. The user should
repeatedly press the CLEAR button until the message disappears.

AMU Use
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3.2.2. Using the front panel buttons
Commands are input by pressing one of the six selection buttons on the front of the unit:
UP, DOWN, LEFT, RIGHT, ENTER and CLEAR. For instance, the user can cycle through the
various modes (IDLE to CHECK MOTOR to RUN to RESUME … and finally back to IDLE), by
repeatedly pressing the UP button. A particular mode can be selected by pressing ENTER
when the desired mode is displayed on the LCD. The menus are set up on a hierarchical
basis, with each level representing commands of the same precedence which the user can
cycle through by pressing the UP or DOWN buttons. Pressing CLEAR has the effect of
stopping a particular action and rising up a level in the hierarchy. Only Edit Settings has
nested hierarchy levels more than two deep. In general, whenever ENTER or CLEAR is
pressed, it will be necessary to confirm the action with a second press of the button;
pressing the other button (i.e. CLEAR after ENTER and vice versa) will cancel the action.
3.2.3. Setting numeric values
Similarly, numeric values can be entered using the arrow buttons. When a value is to be
changed, use the LEFT or RIGHT buttons to move the LCD flashing cursor to the first digit to
be edited and repeatedly press either the UP or DOWN buttons to scroll through the
available alphanumeric characters until the desired one is displayed. Subsequent digits can
be edited by moving to the next digit using the LEFT or RIGHT buttons and again scrolling
with the UP and DOWN buttons. A schematic diagram showing the menu hierarchy is
shown in the appendix at the end of this manual.
3.3. Configuring for use
3.3.1. Master reset
When first installed the AMU unit will be configured for the default factory settings, which
will need to be changed prior to use. At later times, the factory settings can be restored by
pressing and holding down the LEFT button for about 4 seconds during power up of the
device, until the string ''Press ENTER'' for general reset appears. At this stage pressing

AMU Use
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ENTER will initiate the reset. Pressing any other button will cause the reset to be ignored
and the device will continue.
3.3.2. Entering the password
To configure the unit, select the Edit Settings mode and press and confirm ENTER. In order
to proceed further, it will be necessary to enter a password.
NOTE
The factory setting for this password is the string
“m“and can be entered using the UP and DOWN
buttons to cycle through the alphanumeric characters
(‘a’ through ‘z’, ‘0’ through ‘9’).
The LEFT and RIGHT buttons are used to shift the active character in the string. To input the
password “m”, repeatedly press the UP button until the letter ‘m’ appears in the first
position. Press and confirm ENTER and then press ENTER again to enter the Edit Settings
menu.
3.3.3. The Edit settings menu
Throughout this manual, paths to menu items are represented by the word MENU:
followed by the list of sub-menus required to reach the item separated by a forward slash.
For example, the path of the Parity value given in the preceding paragraph would be given
as:
MENU: Edit Settings / Password / Comm. Settings / Parity
The forward slash can be thought to represent the action of pressing and confirming ENTER.
3.3.3.1. First time use
Before AMU can be used for the first time it is necessary to change various settings from
their default values. Values relevant to the connected motor must be set for the quantities
described in the following sections.

AMU Use
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3.3.3.2. Calibration factors
Current sensors and assemblies supplied with AMU should be accompanied by a calibration
document containing the sensor’s calibration factor. The values of each calibration factor
should be entered into the correct setting under the Calibration menu. It is important that
the correct factor be entered for each channel, as AMU will not function correctly if the
calibration factors are incorrect.
For channels connected to current transformers, the calibration factor should be equal to
the nominal ratio of the primary to secondary turns. For example a 100A current
transformer with a 5A output and a single primary turn would require a calibration factor of
20. The same transformer with two primary turns would require a calibration factor of 10. A
6500V voltage transformer with a nominal secondary voltage of 100V would require a
calibration factor of 65.
NOTE
Any channel connected directly to the motor without
an external sensor (i.e. voltage connections on low
voltage units) requires a calibration factor of 1.
3.3.3.3. Motor settings
Nominal voltage, current and frequency:
The nominal voltage, current and speed (in rpm) of the attached motor must be entered
under the Motor Settings menu. These values can be obtained from the motor
specifications. AMU uses these values to determine whether the motor complies with its
specifications and incorrect values are likely to raise alarms. The nominal line frequency (or
most commonly expected frequency in the case of an inverter) should also be set. Similarly,
the motor connection type must be set to one of Star or Delta.
NOTE
The value of this dominant frequency must be entered
from the Edit Settings menu. If AMU measures the
frequency to be out of the expected range, it will issue
an alarm in both the CHECK MOTOR and LEARN modes
and the user should adjust the frequency setting
accordingly. Nominal speed must be normalized
according to the set frequency. E.g. if the frequency
and speed values on the motor name plate are 50 Hz
and 1500 rpm and if the motor is working on 30 Hz