MTE dV Sentry User manual

dV SentryTM
208V –600V
INSTALLATION GUIDE
FORM: DVS-IG-E
REL. January 2018
REV. 003
© 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 –14
❷
Startup/Troubleshooting
Pages 14 –16

dV SentryTM Installation Guide 208V –600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 2
TABLE OF CONTENTS
1. WARNINGS ..............................................................................................................................................3
WARNINGS AND CAUTIONS........................................................................................................3
PRODUCT SAFETY LABELING .....................................................................................................3
GENERAL SAFETY INSTRUCTIONS ..............................................................................................4
2. INTRODUCTION....................................................................................................................................... 5
WWW.MTECORP.COM/DV-SENTRY/ .............................................................................................5
RECEIPT &REPAIR STATEMENT.................................................................................................5
WARRANTY ..............................................................................................................................5
3. HOW TO INSTALL ...................................................................................................................................6
INSTALLATION CHECKLIST .........................................................................................................6
G ROUNDING ............................................................................................................................7
POWER WIRING CONNECTION ...................................................................................................9
BASIC SCHEMATIC DIAGRAMS..................................................................................................10
INTERCONNECTION DIAGRAM –PANEL (3A-110A) AND ENCLOSED (3A-600A) ...........................11
INTERCONNECTION DIAGRAM –MODULAR (130A-600A) ...........................................................12
TORQUE RATINGS...................................................................................................................13
4. START UP ..............................................................................................................................................14
STARTUP CHECKLIST ..............................................................................................................14
5. TROUBLESHOOTING............................................................................................................................15
List of Figures
Figure 3-1: Basic Schematic Diagram.......................................................................................10
Figure 3-2: Panel Mounted and Enclosed Diagram...................................................................11
Figure 3-3: Open Panel Diagram...............................................................................................12
List of Tables
Table 3-1: Over Temperature Switch ......................................................................................... 8
Table 3-2: Torque Ratings ........................................................................................................13
Table 5-1: Performance Specifications......................................................................................15
Table 5-2: Troubleshooting Guide.............................................................................................16

dV SentryTM Installation Guide 208V –600V
3 mtecorp.com Form: DVS-IG-E January 2018 REV. 003
1. WARNINGS
Warnings and Cautions
There are two types of warnings in this manual:
The following symbols are used in this manual:
Product Safety Labeling
The following labels are placed on the dV Sentry product:
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.
Label notes to installer to refer to instruction manual first before
installing.
High Voltage: surfaces on product can have high voltage which can
cause injury.
Connect Thermal Switch: connecting the thermal switch can reduce
risk of damage.
Hot Surfaces: surfaces of product can be hot at times and cause
burns.

dV SentryTM Installation Guide 208V –600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 4
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. Modular 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.
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.
Wiring should not be routed underneath panel in resistor housing. Doing
so could result in fire or damage to the product.
Product should not be mounted on wood or any other combustible
surface. Doing so could lead to fire or damage to the product.

dV SentryTM Installation Guide 208V –600V
5 mtecorp.com Form: DVS-IG-E January 2018 REV. 003
3. INTRODUCTION
The purpose of the manual is to aid in the proper installation of the dV Sentry.
For most current product information, including technical reference manual, please refer to
website: www.mtecorp.com/dv-sentry/
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 dV Sentry 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.

dV SentryTM Installation Guide 208V –600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 6
4. HOW TO INSTALL
Installation Checklist
WARNING
Prior to installation, please refer to all general warnings on page 3. Failure
to practice this can result in bodily 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.
dV Sentry Filters are supplied in the following mechanical configurations:
•Panel assemblies (3A-110A): Reactor and resistor are assembled on a panel and pre-wired
together.
•Modular assemblies (130A-600A): Resistors are pre-wired to a terminal block on a panel and
shipped with a modular reactor.
•Floor mounted general purpose NEMA 1/2 & 3R cabinets (3A - 600A): Reactor and
resistor/resistor panel are supplied in a cabinet with all items pre-wired together.
NOTE: 3A –110A panel mounted assemblies are designed for mounting horizontally
(base) or vertically (back panel) in the customer’s enclosure. Vertically mounted filters
must have terminal block on top.
130A –600A panel mounted assemblies are designed for horizontal (base) mounting
only.
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.
Select a well-ventilated area suitable for the NEMA enclosure type number. Do not install in or
near a corrosive environment. Avoid locations where the filter would be subjected to excessive
vibrations.
Refer to Article 430 Table 430.91 of the National Electrical code for the selection of the
appropriate enclosure Type Number for your application.

dV SentryTM Installation Guide 208V –600V
7 mtecorp.com Form: DVS-IG-E January 2018 REV. 003
Grounding
NOTE: For cable shield grounding follow the drive manufacturer’s recommendations.
Location & Spacing
Panel mounted (open-panel) filters are designed for mounting in the customer’s enclosure.
Include the power dissipation of the filter along with all the other components located in the
panel to determine the internal temperature rise and cooling requirements of the enclosure. 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). Panel mounted dV Sentry
Filters generate heat and should be positioned away from heat sensitive components. Ensure
that proper panel orientation is maintained. Avoid locations where the filter would be subjected
to excessive vibrations. Locate the filter as close to the drive as possible. For applications where
the cable length exceeds fifty (50) feet between the drive and filter, contact MTE.
General purpose NEMA 1/2 and NEMA 3R enclosed filters are designed for floor mounting in an
environment suitable for the enclosure type. Do not install in or near a corrosive environment.
Avoid locations where the filter would be subjected to excessive vibrations. Allow a minimum
side and back clearance of eight (8) inches and front clearance of thirty-six (36) inches for
proper heat dissipation and access. Locate the filter as close to the drive as possible.
WARNING
The filter must always be grounded with a grounding conductor connected
to ground terminals.
For panel mounted units, ensure a 2” x 2” area is cleaned of paint and
varnish on lower mounting bracket for ground connection.

dV SentryTM Installation Guide 208V –600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 8
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 150°C is
reached. See Table 4-1 below for contact rating information and the drive user manual for
interconnection information.
Table 4-1: Over Temperature Switch
NC Switch opens at 150 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

dV SentryTM Installation Guide 208V –600V
9 mtecorp.com Form: DVS-IG-E January 2018 REV. 003
Power Wiring Connection
Verify that the power source to which the filter is to be connected is in agreement with the
nameplate data on the filter. A fused disconnect switch or circuit breaker should be installed
between the filter and its source of power in accordance with the requirements of the NEC and
all local electrical codes and regulations. Refer to the drive user manual for selection of the
correct fuse rating and class.
For 3A –110A panel mounted filter applications, interconnection between the filter, its power
source, and the drive is shown in Figure 4-2 (p11).
For 130A –600A open panel filter applications, interconnection between the filter, its power
source, the resistor panel, and the drive is shown in Figure 4-2 (p11).
For all filters supplied in general purpose NEMA 1/2 & 3R cabinets, interconnection between the
filter, its power source, and the drive is shown in Figure 4-3 (p12).
Wire gauge range and terminal torque requirements for the dV Sentry and the resistor panel are
shown in Table 4-2 (p13).
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.
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.
On NEMA 3R enclosures, CAB-26AP and larger, no live parts shall be
mounted below 8 inches from the bottom of the enclosure.

dV SentryTM Installation Guide 208V –600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 10
Basic Schematic Diagrams
Figure 4-1: Basic Schematic Diagram