Dynalabs DYN-IS-20 User manual

Model DYN-IS-20
20 N Inertial Shaker
Product Manual

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Product Support
If at any time you have questions or problems with the DYN-IS-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 products are warranted against defective materials and workmanship for one
year. Defects arising from user errors are not covered by the warranty.
Copyright
All copyrights of this manual belonging to Dynalabs products are reserved. It
cannot be reproduced without written 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
representation by Dynalabs.
This publication may contain inaccuracies or typographical errors Dynalabs will
periodically update the material for inclusion in new editions. Changes and
improvements to the product described in this manual may be made at any time.

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Table of 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 ...................................................................................................................10
3.5) Mounting Interface......................................................................................................................11
4) Maintenance and Troubleshooting.....................................................................................................11
5) Safety .................................................................................................................................................11
5.1) Grounding ...................................................................................................................................12
6) Declaration of Conformity.................................................................................................................13

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1) Introduction
The inertial shaker (DYN-IS-20) is used for relatively small structures
requiring excitation in low frequency bands. The shaker is directly connected
to the structure and the inertia motion of the shaker mass provides the
necessary forces to the structure. The shaker has a small, lightweight design
that provides high mobility. For this reason, it is suitable for use as a portable
shaker.
2) General Information
2.1) Unpacking and Inspection
Dynalabs products provide adequate 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
DYN-IS-20 has the following components:
- Electrodynamic Shaker Body
- Amplifier (DYN-SA-150)
- Power Adapter
- Signal Cable
- Sensor Mounting Adapter
- Stainless Bolt for Mounting(M3X50)
- Ground Cable
- User Manual
2.3) Theory of Operation
DYN-IS-20 is an electromagnetic actuator. Electromagnetic actuators are
basically a voice coil consisting of magnet and coil. The moving element can
be a coil or magnet depending on the design requirements. The moving
element is usually suspended by an elastic spring. DYN-IS-20 has a stationary
coil (drive coil) whose current is controlled to produce vibration. The
stationary magnetic field is produced by a magnet.

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Item
Description
1
Shaker Body (Integrated Cable)
2
Signal Output
3
GND
4
DC Power Input
5
Sine Freq
6
Gain Knob
7
External Signal Input
8
LCD Display

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2.4) Specifications
Parameters
Specifications
Excitation Type
Vertical or Horizontal
Output Force (Sinus)
20 N
Frequency
10-3000 Hz
Displacement (Peak to Peak)
8 mm
Moving Mass
0.1 kg
Shaker Weight
0.3 kg
Suspension
Spring
Cooling System
Natural Convection
Operating Temperature Range
5-35 °C
Maximum Input Current
4A (RMS)
Amplifier
External
Amplifier Weight
0.65 kg
Power Supply Voltage
19V DC
Power Supply Current
4.74 A
External Signal Voltage Level
1 VAC(PEAK)

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2.5) Outline Drawing
The dimensional properties of DYN-IS-20 shakers are given below. All
dimensions are in mm.

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3) Operation and Installation
3.1) General
The general shaker connector configuration is given below.
The Gain Knob is a push-pull and rotational switch. The amplifier is in
External Signal Mode when the Gain Knob is pushed in and the amplifier is
in Internal Signal Mode when it is pulled out.
In order to protect the amplifier from electrical problems, it is advised to turn
the Gain Knob counter clockwise to the lowest gain position before
connecting the external signal cable or before changing operational modes.
3.1.1-) External Signal Mode:
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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9
3.1.2-) Internal Signal Mode:
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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10
3.2) Power Requirements
DYN-IS-20 has an external power amplifier which is powered by its power
adaptor. Please note the output voltage and current ratings of the adaptor if
a replacement adaptor is to be used.
3.3) Cooling
DYN-IS-20 does not require forced cooling. Air convection cooling is
sufficient for the force levels given in the specifications.
3.4) Frequency Response
The DYN-IS-20 has a relatively flat force response of 20N. The following
figure shows the Force (Newton) over applied Voltage (Volt) frequency
response of DYN-IS-20.
FOR FIXED FREQUENCY SINE TESTING, APPLICATION OF VOLTAGE
LEVELS ABOVE 1V FOR LONG DURATIONS (>1MIN) CAN
PERMANENTLY DAMAGE THE SHAKER.
THE SHAKER SUSPENSION NATURAL FREQUENCY IS ABOUT 25 HZ.
ESPECIALLY FOR FIXED FREQUENCY SINE TESTING, THE USER
SHOULD ALWAYS LOWER THE GAIN FOR THE FREQUENCY BAND OF
5-30 HZ. OTHERWISE, DUE TO THE HIGH RESPONSE OF THE SHAKER
AROUND ITS RESONANCE FREQUENCY, VERY HIGH AMPLITUDES OF
VIBRATION (⁓120N) WILL OCCUR AND PERMANENTLY DAMAGE THE
SHAKER.
THE INTERNAL SINE SIGNAL GENERATOR SUPPLIES A CONSTANT
VOLTAGE OF 1VAC. PLEASE LOWER THE GAIN IN THE VICINITY OF
THE NATURAL FREQUENCY AS HIGHLIGHTED ABOVE.
N/V

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11
3.5) Mounting Interface
4) Maintenance and Troubleshooting
The DYN-IS-20 shaker is a sealed device requiring no maintenance if the
operating instructions described in this manual are followed. Repair of the
coil, exciter body or magnet core should not be attempted. Please return the
shaker to Dynalabs for proper repair.
5) 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-IS-20 Inertial 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. Always monitor the applied voltage to
the amplifier and shut down the shaker if the temperature of the shaker body
rises drastically or smoke is observed from the shaker due to high voltage
levels applied.

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12
5.1) Grounding
The shaker is internally grounded via the power adapter. However, if further
grounding is necessary a grounding socket is available on the shaker as shown.
Appropriate grounding cable is also supplied with the shaker.

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6) Declaration of Conformity
This declaration of conformity is issued under the sole responsibility of the manufacturer.
The product(s) are developed, produced and tested according to following EC- directives:
•2014/35/EU –Low Voltage Directive (LVD)
•2006/42/EU –Machinery Safety Directive
•2015/863/EU –RoHS Directive
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 above mentioned products meet all the requirements of the above mentioned
standards and regulations.
Canan Karadeniz, General Manager
Ankara, 15.07.2021