IMV 4P-420 User manual

－1 －
VP-420/421 Specifications Rev5.0
Specifications and
Instruction Manuals
Direct Output Vibration Pickup
Model:
VP-420 (4-20mA Velocity Type)
VP-421 (4-20mA Velocity + AC Acceleration Type)
Manufacturer: IMV CORPORATION
Specification No.: VP-420: TVE-5-5676E
VP-421: TVE-5-5677E
Total Page: 13
Revision Date: 20th April, 2021

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VP-420/421 Specifications Rev5.0
INDEX
Introduction ................................................................................................................. 3
Safety Precautions......................................................................................................... 3
1. Outline..................................................................................................................... 5
2. Specifications ............................................................................................................ 6
3. Outer Dimensions ...................................................................................................... 7
4. Outer Dimensions of Mounting Adapter (Quick Fit).......................................................... 8
5. Frequency Response .................................................................................................. 8
6. Outline View of Connector Cable .................................................................................. 9
7. Instructions ............................................................................................................ 10
7-1. Installation of Pickup .......................................................................................... 10
7-2. Laying of Pickup Cable........................................................................................ 10
7-3. Wiring Method................................................................................................... 11
7-3-1. Wiring Method of VP-420 .............................................................................. 11
7-3-2. Wiring Method of VP-421 .............................................................................. 12
8. Handling precautions................................................................................................ 13
9. Warranty................................................................................................................ 13

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VP-420/421 Specifications Rev5.0
Introduction
Thank you for purchasing Direct Output Vibration Pickup “VP-420” or “VP-421”.
Read this instruction manuals carefully to ensure the best performance and longest product
life of the device. In addition, pay attention to the cautions described below to use the
product safety.
◆Caution
(1) Direct Output Vibration Pickup (hereinafter referred to as "pickup") is a device that
diagnoses various vibration for industrial equipment such as electric motors and pumps,
and consumer equipment. Do not use it for any other purpose.
(2) When wiring pickup, make sure that power supply source is "off" before performing the work.
(3) Signal line from pickup should not be bundled with the power line or the signal line that
generates noise but should be laid in a separate system.
Safety Precautions
It describes the items that you should follow in order to prevent harm to customers and
other people and damage to property, and to use this product safely. Please be sure to read
this instruction manuals and attached documents before use, and fully understand the
contents for use.
After reading this manual, be sure to place it in a location so that you can always refer to it.
Expressions of Safety Instructions
Indication
Meaning of Indication
Warning Indicates the contents that may cause a dangerous situation of death
or serious injury if mishandled.
Caution Indicates the contents that may cause serious injury or property
damage if mishandled.
Note
Describes cases where there is no risk of injury to the operator, but it
is expected to cause damage or failure to this product or other
equipment or devices.
* "Serious injuries" are those with residual aftereffects such as blindness, injury, burns, electric shock,
fractures, poisoning etc., and those requiring hospitalization or long-term hospital visits for treatment.
* "Minor injuries" are those that do not require hospitalization or long-term hospital visits for treatment
(other than the "serious injuries" above).
In addition to the danger level classification, this document also uses the following notation:
Memo: "Memo" describes supplementary explanations that could not be explained in the
text and information that is useful to know.

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VP-420/421 Specifications Rev5.0
◆For Safe Use
Warning
(1) Do not use this product as a life-threatening alarm device.
(2) When installing this product or peripheral devices in a high place, be sure to use a
workbench such as a stepladder.
(3) Do not use in abnormal conditions such as smoke, strange odor, or noise. Also, do not
disassemble or modify this product regardless of whether it is normal or abnormal. It
may cause electric shock, fire, or malfunction.
(4) When installing near a moving part of the machine, make sure that the machine is stopped
before installing it. Do not perform any installation work while the machine is in operation.
Caution
(1) Be sure to wear a helmet when working at heights.
(2) When installing this product or peripheral devices in a high place, fix them firmly. If
this product or peripheral devices fall, an accident may occur.
(3) When the product is energized, do not touch the terminal block etc. carelessly.
Note
(1) When wiring pickup, check the method that matches the specifications of the device
to be connected. Improper connection may cause the product or connected devices to
breakdown or be damaged.
(2) Use this product in the environment described in this manual. If you use it in an
environment not described in this manual, unexpected problems may occur. In
addition, if the main unit is damaged or peripheral devices are damaged due to the
above reasons, the warranty will be void.
(3) Do not attach this product to the interference point or operating point of the object to
be measured. The object to be measured may damage.
Memo
(1) This product is a precision device. Please handle with care.
(2) When performing automatic measurement operation using this product, it may not be
possible to record measurement data as expected if the settings are not correct.
Please check in the actual environment whether the measurement data can be
obtained as expected, and after confirming that there are no problems, start
operation at full scale.

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VP-420/421 Specifications Rev5.0
1. Outline
This product has 4-20mA DC output which is proportional to the vibration level and the
capability of interfacing direct into PLC, BMS or 4-20mA input module.
◆Feature
(1) Velocity measurements based on ISO10816 which defines the vibration severity is
possible by this product.
(2) Output is 4-20mA DC which is proportional to the vibration level.
(3) This product has the capability of interfacing direct into PLC, BMS or 4-20mA input module.
◆Typical Applications
(1) Vibration Sensors of Vibration Monitoring systems for manufacturing plants or machine tools.
(2) Built-in vibration sensors for fans, motors, Compressors, etc.

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VP-420/421 Specifications Rev5.0
2. Specifications
VP-420
Velocity Range (rms)
□0 to 10mm/s □0 to 20mm/s □0 to 25mm/s
□0 to 50mm/s □0 to 100mm/s
(Nominal: within ±10% at 80Hz and 22°C)
VP-421
Velocity Range (rms)
and
Acceleration Sensitivity
(AC Output)
□0～10mm/s 10.2mV/(m/s2) (Max Acc. 294m/s2)
□0～20mm/s 10.2mV/(m/s2) (Max Acc. 294m/s2)
□0～25mm/s 10.2mV/(m/s2) (Max Acc. 294m/s2)
□0～50mm/s 5.1mV/(m/s2) (Max Acc. 588m/s2)
□0～100mm/s 5.1mV/(m/s2) (Max Acc. 588m/s2)
(Nominal: within ±10% at 80Hz and 22°C)
AC Output Bias Voltage
3VDC (Nominal)
Frequency Response
10 to 1000Hz ±5%
(Frequency range according to ISO10816 that prescripts vibration severity)
Output Current
4 to 20mADC (proportional to “mm/s rms”)
Supply Voltage
15 to 30VDC
Power Consumption
Approx. 1W (Using 24VDC Power Supply)
Settling Time
Approx. 2 seconds
Ambient Temperature
-25 to 90°C
Structure
□Drip-proof Direct-connect Type: IP65 (Dust-proof, Drip-proof)
□Water-proof Connector Type: IP67 (Dust-proof, Water-proof)
□Water Resistant Type: IP68 (Dust-proof, Water Resistant)
Submersible Depth: max 100m, 10bar
Output Impedance
Loop Resistance 600Ωmax at 24VDC
Dimensions
* Detail Reference:
“3. Outer Dimensions”
□Drip-proof Direct-connect Type: φ27.5×45mm (Excluding Protrusions)
□Water-proof Connector Type: φ27.5×56mm (Excluding Protrusions)
□Water Resistant Type: φ27.5×69mm (Excluding Protrusions)
Weight
(Excluding Cable)
□Drip-proof Direct-connect Type: Approx. 135g
□Water-proof Connector Type: Approx. 150g
□Water Resistant Type: Approx. 140g
Case Material
Stainless Steel (SUS303)
Output Cable
□Drip-proof Direct-connect Type:
2 Core Shielded Cable Direct Leading, Sheath: Stainless Mesh
□Water-proof Connector Type:
2 Core Shielded Cable (Sold separately)
* Detail Reference: “8. Outline View of Connector Cable”
□Water Resistant Type:
2 Core Shielded Cable Direct Leading, Sheath: Silicon
Producible Length of
Output Cable
(Standard Length 5m)
□Drip-proof Direct-connect Type: 5 to 100m (5m step)
□Water-proof Connector Type: 5 to 100m (5m step)
□Water Resistant Type: 5 to 100m (5m step)
Maximum Laying
Length of Output Cable
1000m
(However, it is desirable to wire at the shortest possible distance.)
Mounting Adapter
(Quick Fit)
□MS-AS001 (for Glue Face)
□MS-AS002 (M8 Male)
□MS-AS003 (M6 Male)
□MS-AM005 (Magnet: φ25.4mm Pole Piece)
* Detail Reference: “4. Outer Dimensions of Mounting Adapter”
* The contents of this specification are subject to change without notice.

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VP-420/421 Specifications Rev5.0
3. Outer Dimensions
(See “2. Specifications” about structure and weight. Dimension unit is “mm”.）
□Drip-Proof Direct-Connect Type
□Water-Proof Connector Type
□Water-Resistant Type
Sensor Body
φ27.5
45
HEX 28 W5/8 Depth 6
φ27.5
HEX 28
56
66.5
W5/8 Depth 6
Sensor Body
VP-420 Pin Assign
Pin1：NC
Pin2： 15 to 30VDC（White）
Pin3：NC
Pin4：0V(Black)
φ27.5
HEX 28
69
44
φ5.2
W5/8 Depth 6
Sensor Body
VP-420 Cable
White：15 to 30VDC
Black：0V
Silver
White：15 to 30VDC
Black：0V
Silver
Red：AC
VP-421 Cable
VP-421 Pin Assign
Pin1：AC（Brown）
Pin2： 15to 30VDC（White）
Pin3：NC
Pin4：0V(Black)
VP-420 Cable
White：15 to 30VDC
Black：0V
Silver
White：15 to 30VDC
Black：0V
Silver
Red：AC
VP-421 Cable

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VP-420/421 Specifications Rev5.0
4. Outer Dimensions of Mounting Adapter (Quick Fit)
□MS-AS001 (for Glue Face) □MS-AS002 (M8 Male)
□MS-AS003 (M6 Male) □MS-AM005 (Magnet: φ25.4mm Pole Piece)
（Unit is “mm”）
5. Frequency Response
24
W5/8
5.5
3.5
6
24
8.5
3.5
W5/8
M8
6
24
8.5
3.5
M6
W5/8
25.5
3
19
3.5
W5/8
Frequency [Hz]
Sensitivity Change
[%]

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VP-420/421 Specifications Rev5.0
6. Outline View of Connector Cable
Sheath Material: PUR
Cable Outer Diameter: φ5.9 (Standard)
Outline View: See below Figure
Brown
White
Silver (Shield)
Blue (No use)
Black
MS-AC010
Straight Connector
MS-AC011
Angle Connector
φ15
φ15
28
46
46
Brown
White
Silver (Shield)
Blue (No use)
Black
Outline View of Connector Cable

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VP-420/421 Specifications Rev5.0
7. Instructions
7-1. Installation of Pickup
Attach Quick Fit to the bottom of pickup and install it to the vibration measurement point
(see Fig.7-1).
Ideally, the surface of the equipment on which the pickup will be installed should be as flat
as possible, and the contact surface should be coated with silicone grease or oil.
For a Water-Proof Connector Type pickup, fix pickup and then connect the dedicated cable.
Fig.7-1 Installation of Pickup (Example of MS-AS002 and MS-AS003)
Caution
Be sure to check the following items before installing pickup.
(1) Is the instrument to be measured grounded
If pickup mounting surface (measurement target instrument) is not
properly grounded, pickup may become charged and pickup may fail.
(2) Is the pickup mounting surface cleanly finished
Completely remove dirt, dust, paint, etc. Also, make sure that the tapped holes
are upright with no foreign matter on the threads.
7-2. Laying of Pickup Cable
(1) Pickup cable fix away from the device to be measured and at the location closest to
the pickup, and then fix the cable appropriately so that there is no slack.
(2) When relaying the pickup cable, use a junction box, and use a twisted pair shielded
cable that takes the installation environment into consideration. Also, keep the wiring
as short as possible.
Note
(1) If pickup cable is parallel to power line of the inverter, etc., noise from the inverter may
affect the measurement. Install pickup cable as far away from power line as possible.
(2) When relaying pickup cable using junction box, install it in an environment with as
little noise as possible (in a place where noise countermeasures have been taken).
(a) Ideal Fixing
(b) Tap is slant
(c) Tap is shallow
(d) Foreign Matter on face

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VP-420/421 Specifications Rev5.0
7-3. Wiring Method
7-3-1. Wiring Method of VP-420
Connect VP-420 according to the example shown in Fig.7-2 below.
Fig.7-2 Example of Wiring Method about VP-420
Note
(1) Confirm “+” and “–” polarity first. If the polarity is opposite, sensor cannot operate.
(2) Do not supply power voltage more than the specification. It will cause breakdown
on pickup.
(3) Shield wire (Silver) connect on minus side of power supply.
(4) In case of using any receiver such as logger with 1-5V, connect 250Ω resistance
with it in parallel.
メモ
Fig.7-2 is just an example of wiring. For details on connecting pickup to the receiver
(Logger/PLC/DCS etc.), refer to the instruction manual of the receiver.
Also, check the instruction manual of the receiver for how to connect pickup to the
receiver that supports connection of the 2-wire transmitter.
We cannot provide individual answers regarding how to connect to the receiver.
Power Supply
15 to 30DC
＋
White
Silver －
4-20mA Logger
－
Black
＋
PLC/DCS etc.
Ex.1 Case of 4-20mADC Logger
VP-420 Power Supply
15 to 30ＶDC
White
Silver
1-5V Logger
＋
－
Black
＋
－
250Ω
PLC/DCS etc.
Ex.2Case of 1-5VDC Logger

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VP-420/421 Specifications Rev5.0
7-3-2. Wiring Method of VP-421
Connect VP-421 according to the example shown in Fig.7-3 below.
Fig.7-3 Example of Wiring Method about VP-421
Note
(1) Confirm “+” and “–” polarity first. If the polarity is opposite, sensor cannot operate.
(2) Do not supply power voltage more than the specification. It will cause breakdown
on pickup.
(3) Shield wire (Silver) connect on minus side of power supply.
(4) In case of using any receiver such as logger with 1-5V, connect 250Ω resistance
with it in parallel.
メモ
Fig.7-3 is just an example of wiring. For details on connecting pickup to the receiver
(Logger/PLC/DCS etc.), refer to the instruction manual of the receiver.
Also, check the instruction manual of the receiver for how to connect pickup to the
receiver that supports connection of the 2-wire transmitter.
We cannot provide individual answers regarding how to connect to the receiver.
＋
－
4-20mA Logger
White
Power Supply
15 to 30ＶDC
－
＋
Silver
Red or Brown
Acceleration
Waveform
AC Output
Black
～
V
VP-421
PLC/DCS etc.
Ex.1 Case of 4-20mADC Logger
White
Silver
Red or Brown
Acceleration
Waveform
AC Output
－
1-5V Logger
250Ω
Power Supply
15 to 30ＶDC
－
＋
＋
Black
V
～
PLC/DCS etc.
Ex2. Case of 1-5VDC Logger

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VP-420/421 Specifications Rev5.0
8. Handling precautions
Caution
(1) Avoid moving pickup during vibration measurement. When moving, turn off power
supply to converter before moving.
(2) Use a DC power supply for this product and use a stable power supply with little
external noise (noise surge pulse).
Note
When storing this product for a long period of time, avoid places exposed to direct sunlight,
high humidity, and dusty places, and store it in a place within the operating temperature
and humidity range.
Memo
When disposing of this product, dispose of it as industrial waste.
9. Warranty
If this product has the fault caused by the responsibility of IMV as the defect under
production and material during warranty period, we will repair or replace free of charge.
In this case, it is limited to the warranty period. The warranty period of this product is one
year from the date of delivery. However, even within the warranty period, repairs will be
charged in the following cases.
(1) Any damage and breakdown caused by natural disaster such as fire, earthquake,
flood, lightning damage.
(2) Any transporting, moving, or dropping which does not related us after finishing our
delivery.
(3) Any error operation, unusual power supply input, and the fault caused by
disassembling/repairing/modifying by customer.