VibroSystM DMV-100 User manual

DMV-100 Rotor Creep and Speed Detector
Installation Manual

2DMV-100 Rotor Creep and Speed Detector
P/N: 9428-25I4A-400
Safety information
This manual contains information and warnings that must be observed to keep the instruments in a safe
condition and ensure safe operation.
•To use VibroSystM instruments correctly and safely, read and follow all the safety instructions or warnings
given throughout this manual.
•To avoid electric shock, personal injury, or death, carefully read the information under «Safety Information»
before attempting to install, use, or service this instrument.
•In addition, follow all generally accepted safety practices and procedures required when working with and
around electricity.
•For safe operation and to ensure that your system functions at its optimum capacity, the installation and
adjustment process should be handled only by VibroSystM trained service specialists.
•Install and use this instrument only as specified in this manual, or the protection provided by this instrument
might be impaired.
•Do not use the instrument in wet environments.
•Whenever it is likely that safety protection has been impaired, make this instrument inoperative and secure
it against any unintended operation.
•Have this instrument serviced only by qualified service personnel.
•Never remove the cover or open the case of this instrument without first turning off the main power source.
•Never operate this instrument with the cover removed or the case open.
•Do not operate this instrument around explosive gas, vapor, or dust.
Table 1: Safety and electrical symbols that appear in this manual and on the material
Warning - Danger - identify conditions or practices that could cause bodily harm, and
result in damage to the measuring chain and other equipment to which it is connected.
Conditions include a risk of electric shock (voltage > 30 VDC or VAC peak might be
present).
Caution - identify conditions or practices that could result in permanent loss of data.
Important information.
Electronics common - not linked to earth ground.
(Shield) cables shield-to-earth ground, frame or chassis terminal - linked to earth
ground.
2727 Jacques-Cartier E. Blvd, Longueuil QC J4N 1L7 Canada | Tel.: [phone] | 800 663-8379 (U.S. only) | Fax: [phone]
Email: [e-mail] | vibrosystm.com

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
TABLE OF CONTENTS
1. OVERVIEW OF THE DMV-100 ROTOR CREEP AND SPEED DETECTION SYSTEM
2. INSTALLATION OF THE VM 3.12 AIR GAP SENSOR FOR MOVEMENT DETECTION
2.1 Preliminary considerations .................................................................................................................... 7
2.1.1 Supplies needed ........................................................................................................................ 8
2.2 Positioning the air gap sensor................................................................................................................ 8
2.3 Step by step installation of the VM 3.12 Sensor ................................................................................... 9
2.3.1 Preparation of Stator Surface.................................................................................................... 9
2.3.2 Glueing the VM 3.12 Sensor.................................................................................................... 9
2.4 VM 3.12 Sensor - General specifications.............................................................................................. 11
3. INSTALLATION OF THE TRIAXIAL EXTENSION CABLE
3.1 Preliminary considerations .................................................................................................................... 13
3.1.1 Supplies needed ........................................................................................................................ 14
3.1.2 Tools needed............................................................................................................................. 14
3.2 Step by step installation of the triaxial extension cable......................................................................... 14
3.2.1 On site preparation ................................................................................................................... 14
3.2.2 Installation of triaxial extension cable - sensor end ................................................................. 15
3.2.3 Silicone application .................................................................................................................. 20
3.2.4 Installation of triaxial extension cable - signal conditioning module end................................ 21
3.3 General specifications of the triaxial extension cables.......................................................................... 22
4. INSTALLATION OF THE DCC-631 MODULE FOR THE DMV-100 SYSTEM
4.1 Preliminary considerations .................................................................................................................... 23
4.2 Installation of the DCC-631 module ..................................................................................................... 24
4.2.1 Supplies needed ........................................................................................................................ 24
4.2.2 Tools needed............................................................................................................................. 24
4.2.3 Mechanical installation of the casing ....................................................................................... 24
4.3 Connecting the cable to the DCC-631................................................................................................... 25
4.4 LED functionality.................................................................................................................................. 26
4.5 DCC-631 Signal Conditioning Module - General specifications.......................................................... 27
5. INSTALLATION OF THE DMV-100 UNIT
5.1 General description of the DMV-100 Unit............................................................................................ 29
5.1.1 Overview of the DMV-100 Unit main components ................................................................. 30
5.2 Installation of the DMV-100 Unit in a 19” rack or cabinet................................................................... 33
5.2.1 Preliminary considerations for installation in a 19” rack or cabinet ........................................ 33
5.2.2 Required tools and supplies...................................................................................................... 33
5.2.3 Fixing the DVM-100 unit to the rack....................................................................................... 34
5.3 Cabling the DMV-100 Unit................................................................................................................... 35

4DMV-100 Rotor Creep and Speed Detector - Installation Manual
5.3.1 Connecting the Power Input...................................................................................................... 35
5.3.2 Connecting the Protective Conductor Terminal........................................................................ 35
5.3.3 Connecting the DCC-631 Conditioner to the DMV-100 Unit.................................................. 36
5.3.4 Connecting the Relay Output (Creep) Terminals ..................................................................... 37
5.3.5 Connecting 4-20 mA Output (RPM) Terminals ....................................................................... 38
5.4 Initial setup of the DMV-100 System .................................................................................................... 39
5.4.1 Preliminary considerations........................................................................................................ 39
5.4.2 Setup of the Speed Indicator ..................................................................................................... 40
5.5 DMV-100 Unit - General specifications................................................................................................ 51

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
1. OVERVIEW OF THE DMV-100 ROTOR CREEP
AND SPEED DETECTION SYSTEM
Figure 1 : DMV-100 Rotor Creep and Speed Detection complete measuring chain
The DMV-100 System is a complete measuring chain for detection of rotor motion (creep) and monitoring of
machine rotational speed (RPM).
The DMV-100 System is comprised of:
Qty Description
1DMV-100 Monitoring Unit
1DCC-631-10S-5/50 (DM-100 Series) Signal Conditioner
1VM 3.12 air gap capacitive sensor
1Sensor installation kit
110 m (33 ft.) triaxial extension cable (from VM 3.12 sensor to DCC-631 conditioner)
145 m (148 ft.) M12 connectorized power input and signal output cable (from DCC-631
conditioner to DMV-100 unit)

6DMV-100 Rotor Creep and Speed Detector - Installation Manual

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
2. INSTALLATION OF THE VM 3.12 AIR GAP SENSOR
FOR MOVEMENT DETECTION
2.1 Preliminary considerations
•The VM 3.12 sensor is a flat, non-contact sensor using
capacitive technology to measure the distance from its face
to a target (typically, rotor poles in rotating electrical
machinery).
•A single air gap sensor is needed for movement detection.
The purpose of the movement detection system is solely to
sense the passage of poles, regardless of the position of
the rotor. The sensor may therefore be installed at any
angular position.
•A triaxial extension cable connects the sensor to a signal
conditioning module. The output produced by the module is
a linearized 4 to 20 mA signal which can be sent to an
acquisition unit, control unit, or any other instrument.
•The sensor detecting surface must be parallel to the target
surface. The sensor must be glued against the stator
laminations at a position where it will face the plane area of
the rotor poles, usually beneath the second ventilation hole.
Figure 2 : VM 3.12 Air Gap Sensor
•The length of the integral cable (50 cm [19.7 in.]) limits the depth at which the sensor can be glued, as
the connector must remain outside the airgap.
•The integral cable must also be glued to the stator, and covered with a bead of silicone for protection.
Warning - Danger Caution
•Integral cables must be installed on the stator core or a grounded surface to avoid disrupting the
equipotential.
•Never install triaxial cables on high voltage components.
•Never install the sensor over a wedge, always install on stator core laminations.
•Avoid using silicone or PVC based products and components when installing the sensors in an
hydrogen-cooled machine.
•Handle the sensor with great care.
•Never pull on the triaxial cable or on the connector.
•Do not apply paint or silicone on the sensor sensing surface.

8DMV-100 Rotor Creep and Speed Detector - Installation Manual
2.1.1 Supplies needed
•clean dry cloth
•fine sandpaper (with non metallic particles)
•a sensor installation kit including:
- glue (Loctite 330) and its activator (Loctite 7387)
or equivalent
- silicone (3145RTV) or equivalent
Sensor installation kit, sandpaper and cleaning rags
2.2 Positioning the air gap sensor
•The air gap sensor must be placed beneath the
second ventilation hole. When the generator is in
rotation, the whole surface of the sensor must
face in parallel the flat portion of the moving rotor
poles.
•The flat portion of a rotor pole is the laminated
steel core or solid steel body, without the plates
for mounting the pole to the rotor rim.
Sensor beneath second ventilation hole and facing flat portion of rotor

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
2.3 Step by step installation of the VM 3.12 Sensor
2.3.1 Preparation of Stator Surface
After identifying and marking the locations where the sensor should be installed, clean the stator surface to
remove all dust deposits. This step must not be neglected as sensor adherence depends on the preparation
of the surface.
1. Clean the stator surface with a clean dry cloth.
2. Run fine sandpaper on the stator surface, straight along the laminations, just to remove surface dirt as
preparation for glueing. Make sure only non-metallic paper is used.
3. After sanding, clean the stator surface again with a dry cloth.
2.3.2 Glueing the VM 3.12 Sensor
Integralcable
1. If needed, clean the back of the sensor with a clean dry
cloth.
2. Apply glue on the back surface of the sensor. Spread glue
to a thin and even coat, which will not run down when the
sensor is pressed against the stator.
3. Apply the catalyst over the glue on the sensor.
4. Position sensor on the clean surface of the stator. The
sensor must face the plane area of the rotor poles, which
usually starts after the second ventilation hole.
5. Pivot sensor slightly to blend the catalyst into the glue and
to spread the mix evenly, and then reposition vertically.
Hold in a straight, upright position for 60 seconds.
6. Temporarily tape the flat cable to the stator so that it does
not get pulled inadvertently.
Figure 3 : Lateral view of VM 3.12 sensor installed below second ventilation hole
You will need to glue the integral flat cable to the stator, but only after having completed the installation of the
extension triaxial cable. Finally, you must also apply a fine bead of silicone around the sensor edges and over
the integral cable to prevent damage from dirt and particles, and to protect the sensor edges from deterio-
ration.
Caution
•Sensors must be glued on stator core laminations, and NEVER ON THE WEDGES.
•Handle the glue with care to avoid skin contact.
•The glue bonds and sets quickly. All preparation must be completed before applying the glue.

10 DMV-100 Rotor Creep and Speed Detector - Installation Manual

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
2.4 VM 3.12 Sensor - General specifications
Operation
•Linear measuring range with
DCC-631-10S-5/50-ala2/p 5 to 50 mm [197 to 1968 mils]
LIN-331-10J-2/20 2 to 20 mm [79 to 787 mils]
LIN-331-10J-5/35 5 to 35 mm [197 to 1378 mils]
LIN-331-10S-2/20 2 to 20 mm [79 to 787 mils]
LIN-331-10S-5/35 5 to 35 mm [197 to 1378 mils]
LIN-331-15Q-2/20 2 to 20 mm [79 to 787 mils]
•Frequency response limited by the linearization module
•Interchangeability ± 5 %
Connection
•Integral cable
- Type coaxial
- Length 50.0 cm [19.68 in.]
- Connector SMA plug (male contact)
Environmental
•Temperature range
- Operation: 0°to 125°C[32°to 257°F]
- Storage: 0°to 125°C[32°to 257°F]
•Magnetic field up to 2 Tesla (50 Hz or 60 Hz)
•Dust and oil contamination films have no effect on performance
•Humidity up to 95%, non condensing
Physical characteristics
•Dimensions
- Height (sensing surface only) 220.5 mm [8.68 in.]
- Width 33.25 mm [1.30 in.]
- Thickness 1.77 mm [0.07 in.]
- Connector assembly diameter 7.92 mm [0.312 in.]

3.40 mm (0.13")
1.77 mm (0.07")
33.25 mm
(1.30")
220.50 mm (8.68")
VM 3.1
SIDE VIEW
Coaxial Integral Cable : 50 cm
(19.68 ")
TOP VIEW
Dimensions
12 DMV-100 Rotor Creep and Speed Detector - Installation Manual
Figure 4 : Dimensions of the VM 3.12 sensor

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
3. INSTALLATION OF THE TRIAXIAL EXTENSION CABLE
3.1 Preliminary considerations
•The cable type to be used is determined by the sensor type. It is very important that you use the triaxial
extension cable sent with the sensor.
Warning - Danger Caution
Never install triaxial extension cables on high voltage components.
Caution
•Installation of the triaxial extension cable usually follows that of the sensor.
•Before installing the triaxial extension cable, it is important to determine where the enclosure (containing
one or two modules) will be installed, keeping in mind the length of the triaxial extension cable. The cable
must be protected by a combination of conduit, protective tubing, and heat-shrinkable tubing.
•Triaxial extension cables are terminated with an SMA plug (male contact) connector on the signal condi-
tioning module end, and an SMA jack (female contact) connector on the sensor end.
Cable clamps must be used to secure all
components subjected to vibrations. This step
of the installation is essential to prevent
damage from wear by abrasion.
Use clamps to secure the protective tubing
and elbow assembly to the top of the stator.
Refer to Figure 7 : “Preparing holes for the
cable clamps”.
Figure 5 : Securing the protective tubing and coupling
Triaxial extension cables are calibrated and must never be cut or altered.
The ground lugs must be electrically connected on BOTH ends of the triaxial extension
cable. On the sensor side, the ground lug must be connected to the stator frame. On the
signal conditioning module end, the ground lug must be connected to the module ground
screw.

14 DMV-100 Rotor Creep and Speed Detector - Installation Manual
3.1.1 Supplies needed
3.1.2 Tools needed
•assorted drill bits and taps
•heat gun
•cutters or saw for protective tubing
•fish tape
•standard wrench set
•assorted screwdrivers
3.2 Step by step installation of the triaxial extension cable
3.2.1 On site preparation
Determine the run of the flexible conduit, from the location of the elbow assembly, on top of the stator frame,
to the enclosure. Always keep in mind the length of the triaxial extension cable.
Warning - Danger Caution
Triaxial extension cables must be installed on the stator frame or a grounded surface to avoid
disrupting the equipotential, and prevent the formation of surface partial discharges and arcing.
•triaxial extension cable installation kit,
comprised of:
- two (2) lengths of protective tubing 1/2 x 24”
- one (1) 3/4” watertight connector
- one (1) 90°3/8” elbow
- one (1) 3/4” to 3/4” coupling
- one (1) 3/4” to 1/2” reducer
- one (1) piece of 3/8” heat-shrinkable tubing
- three (3) hex screws 1/4-20 x 5/8
- three (3) metric hex screws M6-1,00 x 16mm
- three (3) 1/4” flat washer
- three (3) 1/4” spring lock washer
- two (2) 3/8” cable clamps for protective tubing
- one (1) 1” cable clamp for elbow assembly
•flexible conduit (not supplied)
Figure 6 : Installation kit for one air gap sensor

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
1. Prepare the holes for the cable clamps.
Figure 7 : Preparing holes for the cable clamps
3.2.2 Installation of triaxial extension cable - sensor end
1. On top of the stator, install a length of
protective tubing to protect the triaxial
extension cable and its connection to the
sensor.
Cut the tubing to the right length so that it will
not extend beyond the stator edge. The
tubing can be heated and bent. Install the
tubing in close contact, as much as possible,
with the top of the stator frame.
Figure 8 : Assembly on top of stator frame
Warning - Danger Caution
The protective tubing supplied with the installation kit must be installed on the stator core or
stator frame (ground potential).
(*)
* Note: Two ground wires may be present if the sensor cable is
also equipped with a ground wire.

16 DMV-100 Rotor Creep and Speed Detector - Installation Manual
2. Attach the 3/4 to 3/4 coupling and the 3/4 to
1/2 reducer to the 90°3/8” elbow. Tempo-
rarily leave the cover of elbow open, to allow
pulling the triaxial extension cable.
3. Carefully pull the end of the triaxial extension
cable terminated with a SMA jack (female
contact) into the elbow assembly and
protective tubing. Use a fish tape if needed.
Pull out just enough extra length to work on
the connection, without pulling the ground
wire completely into the protective tubing.
If the sensor cable is also equipped with a
ground wire, this ground wire will have to be
pulled into the protective tubing and
connected to the ground structure at the
same location as the triaxial extension cable
ground wire.
Figure 9 : Elbow assembly
4. Slip a piece of heat-shrinkable tubing on the
portion of triaxial extension cable sticking out
of the protective tubing,
Figure 10 : Slipping on a piece of heat-shrinkable tubing
(*)
* Note: Two ground wires may be present if the sensor cable is
also equipped with a ground wire.

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
5. Attach the SMA plug from the sensor integral
cable to the SMA jack at the end of the
triaxial extension cable. Use two 8mm (or
[5/16”]) flat wrenches to tighten the
connection firmly.
Recommended connection
torque: 1.7 Nm [15 in-lb]
Figure 11 : Tightening the SMA plug and SMA jack connection
6. Slide the heat-shrinkable tubing over the
connection and shrink the tubing with a heat
gun.
The heat-shrinkable tubing must
be placed over the connection to
prevent accidental short-circuits
between connectors and metallic
parts such as flexible conduit, stator
frame, etc., and to secure the con-
nector.
Figure 12 : Heating the heat-shrinkable tubing
7. Pull the connection inside the tubing,
just enough to straighten the cable.
If the sensor integral cable is
equipped with a ground wire, also pull
this wire through the protective
tubing.
Figure 13 : Pulling the SMA connection inside the protective tubing

18 DMV-100 Rotor Creep and Speed Detector - Installation Manual
8. Using instant adhesive (Loctite 404 or equiv-
alent), glue the sensor’s integral cable
against the stator, from the sensor to the
tubing opening.
Remove the slack between the protective
tubing and the elbow assembly. Leave just
enough looseness to allow for thermal
expansion and contraction.
Figure 14 : Fastening integral cable to stator
9. Install the cover on the 90°3/8” elbow, and
attach the assembly to the protective tubing.
Let the triaxial extension cable grounding
wire exit the assembly through the open
space that remains between the body and
cover, near one of the screws. If the sensor
integral cable is equipped with a ground wire,
also pull this wire through the open space.
The elbow must be firmly clamped to the
protective tubing.
Figure 15 : Pulling ground wire out of the elbow assembly
10. The grounding wire(s) must be attached to
the grounded structure.
It is common practice to attach the ground
lugs to the structure through a cable clamp.
When doing this, however, make sure that
the connection point is at the same potential
level as the stator frame.
Figure 16 : Attaching a grounding wire to the structure through a cable clamp
Adequate installation of the ground
wire to the grounded structure is
essential for reliability of results.
Note: Do not cut or extend the
grounding wire.
integral cable grounding wire
(if present)
triaxial extension cable
grounding wire

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DMV-100 Rotor Creep and Speed Detector - Installation Manual
11. Install the cable clamps and grounding wire.
If the sensor cable is also equipped with a
ground wire, this ground wire will have to be
connected to the ground structure at the
same location as the triaxial extension cable
ground wire.
Use threadlocker (Loctite 242 or equivalent)
to secure the hexagon cap screws
Figure 17 : Securing the cable clamps
(*) Note: Some sensor models
have a ground wire.
(*)

20 DMV-100 Rotor Creep and Speed Detector - Installation Manual
3.2.3 Silicone application
Caution
•DO NOT APPLY SILICONE IN HYDROGEN-COOLED LOCATIONS.
•When applying silicone, keep the detection surface of the sensor clean and free of silicone.
1. Cover the sensor’s integral cable with
silicone, from the top of the sensor to the
edge of the protective tubing.
To prevent cable deterioration, and dust and
debris from entering, apply silicone inside the
tubing to form a plug.
Figure 18 : Application of silicone