Dynalabs DYN-PM-20 User manual

Model DYN-PM-20
20 N PM Shaker
Product Manual

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2
Product Support
If at any time you havequestions or problems with the DYN-PM-20 shaker,
please contact a Dynalabs engineer at:
Phone: [phone] (9 a.m. to 5 p.m., UTC +3)
E-mail: [e-mail]
Warranty
Our productsarewarrantedagainstdefectivematerialsand workmanship for one
year.Defects arisingfrom user errorsarenot covered by thewarranty.
Copyright
All copyrights of this manual belonging to Dynalabs products are reserved. It
cannot bereproduced withoutwritten consent.
Disclaimer
Dynalabs Ltd. provides this publication "as is" without warranty of any kind,
express or implied, including but not limited to, the implied warranties of
merchantability or fitness for a particular purpose. This document is subject to
change without notice, and should not be construed as a commitment or
representationby DynalabsLtd.
This publicationmay containinaccuracies or typographicalerrors.Dynalabs Ltd.
will periodically update the material for inclusion in new editions. Changes and
improvementsto theproductdescribedin this manualmay bemadeat any time.

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Tableof Contents
1) Introduction...............................................................................................................................4
2) General Information...................................................................................................................4
2.1) Unpacking and Inspection....................................................................................................4
2.2) System Components............................................................................................................4
2.3) Theory of Operation ............................................................................................................4
2.4) Specifications......................................................................................................................6
2.5) Outline Drawing..................................................................................................................7
3) Operation and Installation...........................................................................................................8
3.1) General...............................................................................................................................8
3.1.1) External Signal Mode:...................................................................................................8
3.1.2 ) Internal Signal Mode:...................................................................................................9
3.2) Power Requirements..........................................................................................................10
3.3) Cooling.............................................................................................................................10
3.4) Frequency Response..........................................................................................................11
4 ) Mounting Interface..................................................................................................................11
5 ) Maintenance and Troubleshooting............................................................................................12
6) Safety......................................................................................................................................12
6.1) Grounding.........................................................................................................................12
7) Declaration of Conformity........................................................................................................13

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1) Introduction
The DYN-PM-20 is designed to provide dynamic force excitation for
vibration and shock testing of small sized mechanical structures.
The DYN-PM-20 is a compact, lightweight and powerful general purpose
electrodynamic shaker with an integrated amplifier providing up to 20 N peak
sine force.
2) General Information
2.1)UnpackingandInspection
Dynalabs products provideadequate protection for undamaged products to be
transported. Document the damages that occur indirectly during the transport
and contact the customer representative. Check all components of the shaker.
If there is a defect, please contact us.
2.2)System Components
The DYN-PM-20 has the following components:
-Electrodynamic Shaker
-Power Adapter
-Signal Cable
-M3X10 Stainless Bolt
-R 1/8 Pneumatic Union
-ProductManual
2.3)Theory of Operation
DYN-PM-20 is an electro-magnetic actuator. Electro-magnetic actuators are
basically voice coils consisting of a permanent magnet and coil. The moving
element can be the coil or the magnet depending on the design requirements.
The moving element is usually suspended by an elastic membrane.
DYN-PM-20 has a moving coil (driving coil) whose current is controlled
for vibration generation. The stationary magnetic field is produced by a
permanent magnet.

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Item
Description
1
Sine Frequency Generator
2
Gain Knob
3
External Signal Input
4
Trunnion Handle
5
Cooling Port
6
DC Power Input

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2.4)Specifications
Parameters
Specifications
Output Force (Sinus)
20 N
Output Force (Shock)
40 N
Frequency
0-12kHz
Payload
0.8 kg
Displacement (Peak to Peak)
5 mm
Suspension
Spring
Maximum Acceleration
40 g
Shaker Weight
4.1 kg
Cooling System
NaturalConvection
(For continuousoperationat 20Nforced
cooling is suggested)
Operating Temperature Range
5-35°C
Maximum Input Current
4A(RMS)
AMPLIFIER
INTERNAL
ExternalSignalVoltageLevel
1 VAC(PEAK)
Power SupplyVoltage
19VDC
Power SupplyCurrent
4.74A

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2.5)OutlineDrawing
The dimensional properties of DYN-PM-20 shakers are given below.

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3) Operation andInstallation
3.1)General
The general shaker connector configuration is given below.
3.1.1)ExternalSignalMode:
Connect DC power source and drive signal to shaker power input and signal
input respectively. Start the external signal source. Adjust the Gain of the
amplifier by turning the Gain Knob clockwise.

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3.1.2) InternalSignalMode:
The amplifier can generate sine signal from 1Hz to 15kHz with 1 Hz
increments that the user can adjust with the Sine Frequency Generator
Switch. Connect DC power source and drive signal to shaker power input.
Pull the Gain Knob out.
Raise or lower the Sine Frequency Generator Switch to the desired Sine
frequency. Adjust the Gain of the amplifier by turning the Gain Knob
clockwise. The frequency of the generated sine signal will be visible on the
LCD Screen.

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3.2)Power Requirements
DYN-PM-20 has an integrated power amplifier which is powered by its
power adaptor. Please note the output voltage and current ratings of the
adaptor in a replacement adaptor is to be used.
3.3)Cooling
DYN-PM-20 does not require forced cooling. Air convection cooling is
sufficient for the force levels given in the specifications.

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3.4)Frequency Response
The following figure shows the acceleration levels/Input voltage versus
frequency of the shaker.
4 ) MountingInterface
The shakerhas five M3 holes for DUT and fixture connection as shownin the
following figure.

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5 ) MaintenanceandTroubleshooting
The DYN-PM-20 shaker is a sealed device requiring no maintenance if the
operating instructions described in this manual are followed. Repair of
damage to the coil, exciter body or magnet core should not be attempted.
Please return the shaker to Dynalabs for proper repair.
6) Safety
Please ensure that this manual section is reviewed and understood prior to
installation, operation or maintenance of the equipment. The danger of
electrical shock or fire always exists in electrical equipment.
The DYN-PM-20 Shaker is designed for safe operation. Safety features
such as electrical insulation on outer surfaces are provided for the safe
operation of the shaker system.
6.1)Grounding
The shaker is internally grounded via the power adapter. However, if further
grounding is necessary a grounding socket is available on theshaker as shown.
Appropiategroundingcableis also suppliedwiththeshaker.

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7) Declaration of Conformity
This declaration of conformity is issuedunder the sole responsibility of the manufacturer.
The product(s)are developed, produced and tested accordingto following EC- directives:
•2014/35/EU–Low VoltageDirective(LVD)
•2006/42/EU–MachinerySafetyDirective
•2015/863/EU –RoHSDirective
Applied standards:
• EN 61010-1:2010
• EN ISO 12100:2010
• MIL-STD-810-H-2019(Test Methods:501.7- High Temperature,502.7 -Low
Temperature,514.8 -Vibration,516.8–Shock)
DYNALABS MÜHENDİSLİK SANAYİ TİCARET LİMİTED ŞİRKETİ declares
that abovementioned productsmeet all the requirements of the abovementioned
standardsand regulations.
Murat Aykan,TechnicalManager
Ankara, 15.07.2021