MTE SineWave Guardian User manual

High Frequency
SineWave GuardianTM
380V –480V
INSTALLATION GUIDE
FORM: SHF-IG-E
REL. January 2018
REV. 002
© 2018 MTE Corporation
WARNING
High Voltage! Only a qualified electrician can carry out the electrical
installation of this filter.
Quick Reference
❶
How to Install
Pages 6 –12
❷
Startup/Troubleshooting
Pages 13 –16

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TABLE OF CONTENTS
1. WARNINGS............................................................................................................................3
WARNINGS AND CAUTIONS........................................................................................................3
GENERAL SAFETY INSTRUCTIONS ..............................................................................................4
2. INTRODUCTION ....................................................................................................................5
RECEIPT &REPAIR STATEMENT.................................................................................................5
WARRANTY ..............................................................................................................................5
3. HOW TO INSTALL.................................................................................................................6
INSTALLATION CHECKLIST .........................................................................................................6
GROUNDING.............................................................................................................................7
POWER WIRING CONNECTION ...................................................................................................8
BASIC SCHEMATIC DIAGRAM .....................................................................................................9
OPEN PANEL UNIT INTERCONNECTION DIAGRAM ......................................................................10
ISOLATION TRANSFORMER DIAGRAM........................................................................................11
TORQUE RATINGS...................................................................................................................12
4. START UP............................................................................................................................13
STARTUP CHECKLIST ..............................................................................................................13
5. TROUBLESHOOTING..........................................................................................................15
List of Figures
Figure 3-1: Basic Schematic Diagram........................................................................................ 9
Figure 3-2: Open Panel Interconnection....................................................................................10
Figure 3-3: Isolation Transformer..............................................................................................11
List of Tables
Table 3-1: Over Temperature Switch ......................................................................................... 7
Table 3-2: Torque Ratings ........................................................................................................12
Table 5-1: Performance Specifications......................................................................................15
Table 5-2: Troubleshooting Guide.............................................................................................16

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1. WARNINGS
Warnings and Cautions
There are two types of warnings in this manual:
The following symbols are used in this manual.
WARNING
WARNING describes situations that can lead to serious faults,
physical injuries, or even death.
Caution
Caution describes situations that can lead to malfunction or
possible equipment damage.
WARNING
High Voltage Warning: warns of situations that dangerously
high voltage is involved. Failure to use proper precautions may
lead to serious injury or even death.
WARNING
General Warning: warns of situations that can result in serious
injury or death if proper precautions are not used.
Caution
General Caution: identifies situations that could lead to
malfunction or possible equipment damage.

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General Safety Instructions
WARNING
High Voltage! Only a qualified electrician can carry out the electrical
installation of this filter.
High voltage is used in the operation of this filter. Use extreme caution to
avoid contact with high voltage when operating, installing or repairing this
filter. Injury or death may result if safety precautions are not
observed.
WARNING
The opening of the branch circuit protective device may be an indication
that a fault current has been interrupted. To reduce the risk of fire or
electrical shock, current-carrying parts and other components of the filter
should be examined and replaced if damaged.
An upstream disconnect/protection device must be used as required by
the National Electrical Code (NEC) or governing authority.
Even if the upstream disconnect/protection device is open, the drive down
stream of the filter may feedback high voltage to the filter. The drive
safety instructions must be followed. Injury or death may result if safety
precautions are not observed.
The filter must be grounded with a grounding conductor connected to all
grounding terminals. Open panel filters must have reactor grounded
through a 2”x2” area cleaned of paint and varnish on lower mounting
bracket.
Only spare parts obtained from MTE Corporation or an authorized MTE
distributor can be used.
After removing power, allow at least five minutes to elapse and verify that
the capacitors have discharged to a safe level before contacting internal
components. Connect a DC voltmeter across the capacitor terminals and
ensure that the voltage is at a safe level.
Caution
Loose or improperly secured connections may damage or degrade filter
performance. Visually inspect and secure all electrical connections before
power is applied to the filter.
Prior to start up; confirm the drive operation mode is property set (Volts
per Hertz). Please consult drive manual/manufacturer to configure proper
parameters. Failure to do so may result in failure of drive or filter
components.
Damage to the filter may occur if the output frequency is not set between
4.8 kHz and 8 kHz. Optimum output frequency is 5 kHz.
Over speeding a motor can cause it to break. Motor must be rated to run
above 60 Hz.

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2. INTRODUCTION
The purpose of the manual is to aid in the proper installation of the High Frequency SineWave
Guardian.
For most current product information, including technical reference manual, please refer to
website: www.mtecorp.com/high-frequency-sinewave-guardian/
This manual is intended for use by personnel experienced in the operation and maintenance of
drives. Because of the high voltages required by the filter, drive and the potential dangers
presented by rotating machinery, it is essential that all personnel involved in the operation and
maintenance of this filter know and practice the necessary safety precautions for this type of
equipment. Personnel should read and understand the instructions contained in this manual
before installing, operating or servicing the filter and drive to which it is connected.
Receipt & Repair Statement
Upon Receipt of this Filter:
The High Frequency SineWave Guardian Motor Protection Filter has been subjected to
demanding factory tests before shipment. Carefully inspect the shipping container for damage
that may have occurred in transit. Then unpack the filter and carefully inspect for any signs of
damage. Save the shipping container for future transport of the filter.
In the event of damage, please contact and file a claim with the freight carrier involved
immediately.
If the equipment is not going to be put into service upon receipt, cover and store the filter in a
clean, dry location. After storage, ensure that the equipment is dry and that no condensation or
dirt has accumulated on the internal components of the filter before applying power.
Repair/Exchange Procedure
MTE Corporation requires a Return Material Authorization Number and form before we can
accept any filters that qualify for return or repair. If problems or questions arise during
installation, setup, or operation of the filter, please contact MTE for assistance at:
Toll Free: 1-800-455-4MTE (1-800-455-4683)
International Tel: [phone]
Fax: [phone] Warranty
Three years from the date of shipment. See www.mtecorp.com for details.

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3. HOW TO INSTALL
Installation Checklist
WARNING
Prior to installation, please refer to all general warnings on page 4. Failure to
practice this can result in body injury!
Input and output wiring to the filter should be performed by authorized
personnel in accordance with NEC and all local electrical codes and
regulations.
WARNING
The filter is designed for use with copper conductors with a minimum
temperature rating of 75 degrees C.
High Frequency SineWave Guardian Filters are supplied in the following mechanical
configuration:
•Modular: Modular units consist of a reactor and one or more capacitor panel assemblies
referred to as cap-panels on drawings and diagrams. Additional wiring between the reactor
and capacitor/capacitor panel is required by customer.
Modular units are designed for mounting within the customer’s enclosure.
The capacitor panel must be located in the lowest temperature regions of the enclosure –
generally toward the bottom and away from high temperature components.
Include the power dissipation of the filter along with all the other components located in the
enclosure to determine the internal temperature rise and cooling requirements of the enclosure.
Refer to Article 430 Table 430.91 of the National Electrical code for the selection of the
appropriate enclosure Type Number for your application.

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Grounding
NOTE: For cable shield grounding follow the drive manufactures recommendations.
Grounding and Ground Fault Protection
Due to high leakage currents associated with variable frequency drives, ground fault protective
devices do not necessarily operate correctly when placed ahead of a SineWave Filter feeding a
drive. When using this type of device, its function should be tested in the actual installation.
Location & Spacing
Modular High Frequency SineWave Guardian filters are designed for mounting within the
customer’s enclosure. When determining the internal temperature rise and cooling requirements
of the enclosure, include the power dissipation of the filter along with all the other components
located in the panel. A general guideline is to allow a side clearance of four (4) inches and a
vertical clearance of six (6) inches for proper heat dissipation and access within the enclosure.
Clearances may be less if proper ventilation exists. Filter components must operate within
temperatures specified in this manual or filter operating life will be compromised. Also, be aware
of minimum electrical clearances as defined by the appropriate system safety standard(s).
These filters generate heat and should be positioned away from heat sensitive components.
Avoid locations where the filter would be subjected to excessive vibrations. Locate the filter as
close to the inverter as possible.
Over Temperature Interlock
An over temperature interlock circuit should be used in conjunction with thermal switch to turn
off the drive to prevent filter damage due to abnormal operating conditions. The temperature
switch is normally closed and will open when an internal reactor temperature of 180°C is
reached. See Table 3-1 below for contact rating information and the drive user manual for
interconnection information. Table 3-1: Over Temperature Switch
NC Switch opens at 180 Deg. +/- 5 Deg. C
Current Amps
Voltage
Contact Load
6
120 AC
Resistive Loads
3
120 AC
Inductive Loads
3
240 AC
Resistive Loads
2.5
240 AC
Inductive Loads
8
12 VDC
Resistive Loads
4
24 VDC
Resistive Loads
MTE highly recommends the use of the over temperature switch to prevent damage to the filter
in rare instances of overheating from abnormal operating conditions
WARNING
The filter must always be grounded with a grounding conductor
connected to ground terminals.
For open panel units, ensure a 2” x 2” area is cleaned of paint and
varnish on lower mounting bracket for ground connection.

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Power Wiring Connection
Verify that the rating of the filter is compatible with the drive to which it is to be connected. Follow
all detailed drive manufacturer installation and safety instructions. Drive and load cable selection /
placement should be in accordance with the requirements of the NEC and all local electrical
codes and regulations.
The typical interconnection diagrams that follow are shown for a motor load but the load can be
either a motor or a transformer.
•For panel mounted filter applications, interconnection between the filter, its power
source, the cap-panels, and the drive is shown in Figure 3-2 (p10).
•For isolation transformer connections between the filter, motor and the drive is shown in
Figure 3-3 (p11).
Wire gauge range and terminal torque requirements as well as selecting conductors that
interconnect the reactor and capacitor assemblies are shown in Table 3-2 (p12).
Refer to the drive user manual for instructions on interconnecting the drive and motor and the
correct start-up procedures for the drive.
The filter is designed for use with copper conductors with a minimum temperature rating of 75
degrees C.
Wiring Checks
Using Figure 3-1 (p9), visually check the wired components to confirm, verify, and correct
wiring. Then, with a multi meter check phase to phase isolation using the 100 K ohm range. The
multi meter will read the parallel equivalent of the bleeder resistors after the capacitors initially
charge. All phase to phase resistance values should be the same.
Check for the Following Faults:
•Capacitor shorted
•Capacitor bus not connected
•Capacitor bus to chassis short
•Paralleling wiring errors
WARNING
Input and output power wiring to the filter should be performed by
authorized personnel in accordance with the NEC and all local electrical
codes and regulations.
Cable lugs and mounting hardware are provided by the customer.
Any extremely low or high resistance readings indicate miswiring and
may result in damage to filter components if not corrected.

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Basic Schematic Diagram
Figure 3-1: Basic Schematic Diagram

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Open Panel Unit Interconnection Diagram
Figure 3-2: Open Panel Interconnection

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Isolation Transformer Diagram
Figure 3-3: Isolation Transformer

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Torque Ratings
Table 3-2: Torque Ratings
Filter
Rating
(Amps)
SWG Terminals
Cap-panel Terminals
U4-V4-W4
Input /Output Power
U1-V1-W1 / U2-V2-W2
U4-V4-W4
interconnec
t Cap-panel
Cap-panel
Part Number
Minimum
Interconnect
Wire Gauge
(AWG)
Terminal
Torque
(in-lbs.)
Recommended
Minimum
Wire Size
(AWG)
Terminal
Torque
(in-lbs.)
Terminal
Torque
(in-lbs.)
80
4
N/A
N/A
CAPPANEL-006
10
60
110
2
N/A
N/A
CAPPANEL-007
8
60
130
1
N/A
N/A
CAPPANEL-008
8
60
160
4 (2x) or 2/0
N/A
N/A
CAPPANEL-009
6
60
200
3 (2x) or 1/0
N/A
N/A
CAPPANEL-003
4
60
250
1 (2x) or 250K CMIL
N/A
N/A
CAPPANEL-002
4
60
305
2/0 (2x)
N/A
N/A
CAPPANEL-002
3
60
415
4/0 (2x)
N/A
N/A
CAPPANEL-002
(2X)
4 each
60
515
300 MCM (2x)
N/A
N/A
CAPPANEL-002,
003 (2X)
4 each
60
600
400K CMIL
N/A
N/A
CAPPANEL-002,
003 (2X)
4 each
60
Note: Cap-panel interconnect wiring specification according to UL508 75° C Table.
Note: To prevent flexing or bending of the coil windings attached to High Frequency SWG reactor
use appropriate strain relief to prevent stress on terminals. For flat copper terminal tabs, use two
wrenches to tighten customer provided cable mounting hardware.
Note: Refer to reference drawings on MTE website for termination wire ranges:
www.mtecorp.com/high-frequency-sinewave-guardian/high-frequency-sinewave-guardian-
literature-documentation/

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4. START UP
Startup Checklist
Safety Precautions
Before startup, observe the following warnings and instructions:
WARNING
Internal components of the filter are at line potential when the filter is
connected to the drive. This voltage is extremely dangerous and may
cause death or severe injury if you come in contact with it.
Remove all power to the SineWave Guardian filter in compliance to
standardized 26 CFR 1920.147 lockout/tagout policies. After removing
power, allow at least five minutes to elapse and verify that the capacitors
have discharged to a safe level before contacting internal components.
Connect a DC voltmeter across the capacitor terminals and ensure that
the voltage is at a safe level.
Use extreme caution to avoid contact with line voltage when checking for
power. INJURY OR DEATH MAY RESULT IF SAFETY PRECAUTIONS
ARE NOT OBSERVED.
Caution
Prior to start up; confirm the drive operation mode is property set (Volts
per Hertz). Please consult drive manual/manufacturer to configure proper
parameters. Failureto do so may result in failure of drive or filter
components.
Damage to the filter may occur if the output frequency is not set between
4.8 kHz and 8 kHz. Optimum output frequency is 5 kHz.
MTE recommends 10 seconds as an initial starting point for motor ramp
time and that customers examine the actual inrush and ratings of their
drive system. Inrush current seen at the drive from the filter that can easily
be overcome by changing the motor ramp time.

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Sequence of Operation
1. Read and follow safety precautions.
2. After installation, ensure that:
•All filter ground terminals are connected to ground.
•Power wiring to the utility, drive, filter, capacitor panels and motor is in accordance
with the power wiring connection diagrams shown in installation instructions
section.
3. Check that moisture has not condensed on the filter components. If moisture is present,
do not proceed with startup until the moisture has been removed.
4. Disconnect filter output terminals from the motor.
5. Set the drive switching frequency between 4.8 kHz and 8 kHz. Refer to the drive user
manual.
6. Connect filter temperature safety overload switch into the control circuit so that the drive
will shut down in an overload situation.
7. Confirm that drive voltage is present at the input terminals (U1, V1, W1) of the filter.
8. Confirm that drive voltage is present at the output terminals (U2, V2, W2) of the filter.
9. Connect the filter output to the motor.
10. Refer to the drive user manual for the drive startup procedure. Observe all safety
instructions in the drive user manual.

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5. TROUBLESHOOTING
WARNING
INJURY OR DEATH MAY RESULT IF THE DRIVE SAFETY PRECAUTIONS
ARE NOT OBSERVED.
When properly installed, this equipment has been designed to provide
maximum safety for operating personnel.
However, hazardous voltages and elevated temperatures exist within the
confines of the enclosure. Servicing should therefore be performed by
qualified personnel only and in accordance with OSHA Regulations.
High voltage is used in the operation of this filter. Use Extreme caution to
avoid contact with high voltage when operating, installing or repairing
this filter. INJURY OR DEATH MAY RESULT IF SAFETY PRECAUTIONS
ARE NOT OBSERVED.
Caution
After removing power, allow at least five minutes to elapse and verify that
the capacitors have discharged to a safe level before contacting internal
components. Connect a DC voltmeter across the capacitor terminals or
terminals U1, V1or V1, W1 and ensure that the voltage is at a safe level.
To aid in troubleshooting, two interconnection diagrams and a troubleshooting guide that lists
potential problems and solutions are included:
Figure 3-2: Open Panel Interconnection (p10)
Figure 3-3: Isolation Transformer (p11)
Table 5-2: Troubleshooting Guide (p16)
For specific product performance specifications, reference Table 5-1 below:
Table 5-1: Performance Specifications
Service Load Condition
Conventional 3 phase motors operating in volts per Hertz mode
Standard step-up transformer or design for use of filter in
sensor less vector mode
Input Voltage
380V - 480V +/- 10%
Harmonic Voltage Distortion
5% maximum @ 5kHz; 8% maximum @ 6-8kHz
Inverter Operating Frequency
6Hz to 300Hz
Maximum Ambient
Temperature
-40C to +60C Modular Filter
-40C to +90C Storage
Insulation System
Class N (200° C)
Insertion Loss (Voltage)
6% maximum @ 150Hz; 12% maximum @ 300Hz
Efficiency
>99%
Altitude without derating
3,300 feet above sea level
Maximum Motor Lead Length
15,000 feet
Relative Humidity
0% to 95% non-condensing
Current Rating
100% RMS Continuous; 150% for 1 minute Intermittent

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Table 5-2: Troubleshooting Guide
PROBLEM:
Drive Overcurrent Fault
Possible cause:
Motor ramp-up time too short.
Solution:
MTE suggests a ramp time of >5-10 seconds. Consult drive manufacturers
manual to configure proper parameters.
Possible cause:
Failed or incorrect wiring
Solution:
Verify all field and product wiring is correct.
Possible cause:
Parameter compatibility.
Solution:
Consult drive manufacturers manual for operating drive with a motor
protection filter.
Possible cause:
Filter, Drive, Motor current ratings compatible.
Solution:
Verify the filter and motor are properly sized for the application.
Possible cause:
Drive not configured for Volts/ Hertz
Solution:
Vector control might be required for PM Motors in some applications. Consult
drive manufacturers manual to configure proper parameters.
Possible cause:
Motor winding fault.
Solution:
Verify motor windings and hi-pot is necessary.
Possible cause:
Cable failure.
Solution:
Verify cable continuity and insulation.
PROBLEM:
Excessive Filter Noise
Possible cause:
Mismatched motor rating.
Solution:
Verify the filter is properly sized for the application.
Possible cause:
Capacitors disconnected or improperly wired.
Solution:
Verify the proper connection of the capacitors.
Possible cause:
Carrier frequency less than 4.8 kHz.
Solution:
Verify the carrier frequency is at least 4.8 kHz.
PROBLEM:
Temperature Switch Open
Possible cause:
Mismatched motor rating.
Solution:
Verify the filter is properly sized for the application.
Possible cause:
Capacitors disconnected or improperly wired.
Solution:
Verify the proper connection of the capacitors.
Possible cause:
Carrier frequency less than 4.8 kHz.
Solution:
Verify the carrier frequency is at least 4.8 kHz.
Possible cause:
Excessive ambient temperature.
Solution:
Ensure filter is operating within specified ambient temperature below 60° C.
PROBLEM:
Motor will not turn.
Possible cause:
No power.
Solution:
Check fuses or breakers for proper input power.
Possible cause:
Motor incorrectly wired.
Solution:
Check for wiring faults.
Possible cause:
Locked rotor motor load.
Solution:
Check motor load.
Possible cause:
Drive fault.
Solution:
Consult drive manufacturers manual.
Possible cause:
Capacitors disconnected or improperly wired.
Solution:
Verify the proper connection of the capacitors.
Possible cause:
Overloaded motor.
Solution:
Verify the motor is properly sized for the application.