M-system 20VS5-201 User manual

20VS5-201
P. 1 / 4EM-4422 Rev.2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
ISOLATION AMPLIFIER
(high-accuracy, input isolation) MODEL
20VS5-201
INSTRUCTION MANUAL
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Amplifier ....................................................................... (1)
■MODEL NO.
Confirm that the model number described on the product is
exactly what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■POWER INPUT RATING & OPERATIONAL RANGE
•PowerSupply
Operational voltage range: 15V DC ±10%
 Powerconsumption:Approx.15mADC(noload)
Install the filter for the power supply as indicated below.
■ENVIRONMENT
•Indooruse
•Whenheavydustormetalparticlesarepresentintheair,
install the unit inside proper housing with sufficient ven-
tilation.
•Donotinstalltheunitwhereitissubjectedtocontinuous
vibration.Donotsubjecttheunittophysicalimpact.
•Environmentaltemperaturemustbewithin-10to+70°C
(14to158°F)withrelativehumiditywithin30to90%RH
in order to ensure adequate life span and operation.
■WIRING
•Do not install cables (power supply, input and output)
close to noise sources (relay drive cable, high frequency
line, etc.).
•Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■INSTALLING THE MODULE
Whenitisinstalledontheprintedwiringboard,landdiam-
eterø1.5andthrough-holeø0.9arerecommended.
■AND ....
•Theunitisdesignedtofunctionassoonaspowerissup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
•With voltage output, do not leave the output terminals
shortcircuited for a long time. The unit is designed to en-
dure it without breakdown, however, it may shorten ap-
propriate life duration.
CHECKING
1) Terminal wiring: Check that wiring is correctly connect-
ed according to the connection diagram.
2) Powerinputvoltage:Checkvoltageacrossthepins.
3) Input:Checkthattheinputsignaliswithin0–100%of
the full-scale.
4) Output: Check that the load resistance meets the de-
scribed specifications.
10µF
+
–
COM
POWER
560µH
14
15
+15V
10µF
+
–

20VS5-201
P. 2 / 4EM-4422 Rev.2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
TERMINAL CONNECTIONS
■EXTERNAL DIMENSIONS mm (inch)
■TERMINAL ASSIGNMENTS
+
–
+
–
OUTPUT
2
1
6
14
15
5
3
4
17
16
+
–
POWER
Note. The reference voltage source is common to the COM (–), terminal 4.
*To be used in the printing wiring board on which the unit is mounted.
REFERENCE VOLTAGE SOURCE*
COM (–)
INPUT NON-INVERTING INPUT
INVERTING INPUT
FEEDBACK
PIN ASSIGNMENT
6
5
4
3
2
1
REFERENCE VOLTAGE SOURCE (–)
REFERENCE VOLTAGE SOURCE (+)
COM (–)
NON-INVERTING INPUT
17
16
15
14
OUTPUT (+)
OUTPUT (–)
POWER SUPPLY (–)
POWER SUPPLY (+)
INVERTING INPUT
FEEDBACK
161417
12.7 (.5) 20.32 (.8) 7.62
(.3)
0.5 (.02)
2.54 (.1) 0.25
(.01)
20.32 (.8)
MAX. 47.5 (1.87) 10.7 (.42)
MAX. 16 (0.63)7.75
(.31)
2.55 (.1)

20VS5-201
P. 3 / 4EM-4422 Rev.2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
APPLICATION EXAMPLES
The primary amplifier in this unit is high accurate. Installing external resistors to the inverting input (pin 2) and the feed-
back (pin 1), this unit can be used as a non-inverting or inverting amplifier.
Theseriesresistanceoftheamplier,R2+R2must be less than 200kΩ.
The output is proportional to the input.
Thegainis0.98.
E.g.±9.8VDCfor±10VDCinput.
The output is inverted to the input. The
gain is -1.
E.g.+10VDCfor-10VDCinputand-10V
DCfor+10VDCinput.
+
–
+
R2R1
–
+
–
Non-inverting amplifier circuit G = 1 + R1/ R2
OUTPUT VO
■Non-inverting amplifier circuit: Example of G = 1 + R1/ R2
INPUT VIN
+
–
–
+
REFERENCE
VOLTAGE SOURCE
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15
Foranon-invertingamplicationtheout-
put is following.
VO=(1+R2/R2) × VIN
WhenR2=10kΩ,R2= 10kΩ, then the out-
put is following. The gain is 2.
VO= 2 ×VIN
+
–
+
R2R1
–
+
–
Inverting amplifier circuit G = -R1/ R2
OUTPUT VO
■Inverting amplifier circuit: Example of G = -R1/ R2(output inverted to the input)
INPUT VIN +
–
–
+
REFERENCE
VOLTAGE SOURCE
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15
Foraninvertingamplicationtheoutput
is following.
VO =-(R2/R2) × VIN
WhenR2=20kΩ,R2= 10kΩ, then the out-
put is following. The gain is -2.
VO= -(20kΩ / 10kΩ) × VIN = -2 × VIN
+
–
+
–
+
–
1
2
Non-inverting circuit G = 0.98
OUTPUT ±9.8V DC
–
+
REFERENCE
VOLTAGE SOURCE
nNon-inverting amplifier circuit: Basic example of G = 0.98
INPUT ±10V DC
+
–
4
3
5
6
17
16
+
–
POWER 15V DC
14
15
+
‒
+
R2R1
‒
+
‒
Inverting circuit G = -1
OUTPUT ±10V DC
■Inverting amplifier circuit: Basic example of G = -1 (output inverted to the input) (R1≈R2)
INPUT ±10V DC +
‒
‒
+
REFERENCE
VOLTAGE SOURCE
1
2
4
3
5
6
17
16
+
‒
POWER 15V DC
14
15

20VS5-201
P. 4 / 4EM-4422 Rev.2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
For a non-inverting amplica-
tion with external adjustments,
when the combined resistance of
the span adjustment and 9kΩ is
10kΩ,thegainis(1+10kΩ/R2)
× VIN.Withthespanadjustment
(2kΩ), the output is configurable.
Thezeroisadjustablewitharef-
erence voltage source of ±15V DC
and the attenuation of 200Ω and
30kΩ.
For an inverting amplication
withexternaladjustments,when
the combined resistance of the
span adjustment and 9kΩ is
10kΩ, the gain is -(10kΩ / R2) ×
VIN.  With the span adjustment
(2kΩ), the output is configurable.
Thezeroisadjustablewitharef-
erence voltage source of ±15V DC
and the attenuation of 200Ω and
30kΩ.
MAINTENANCE
Regularcalibrationprocedureisexplainedbelow:
■CALIBRATION
Warmuptheunitforatleast10minutes.Apply0%,25%,
50%, 75% and 100% input signal.  Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet.
+
–
+
–
Non-inverting amplifier circuit zero/span adjustments (input ±5V, output ±10V)
OUTPUT ±10V DC
■
Non-inverting amplifier's circuit with external adjustments: Example of G = 2
+
–
–
+REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
50kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±5V DC
10kΩ
30kΩ
200Ω
+
–
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15
+
–
Inverting amplifier circuit zero/span adjustments (input ±10V, output ±10V)
■ Inverting amplifier's circuit with external adjustments: Example of G = -1 (output inverted to the input)
+
–
–
+REFERENCE
VOLTAGE
SOURCE
9kΩ
10kΩ
100kΩ
(ZERO)
2kΩ
(SPAN)
INPUT ±10V DC
10kΩ
30kΩ
200Ω
+
–
+
–
OUTPUT ±10V DC
1
2
4
3
5
6
+
–
POWER 15V DC
17
16
14
15