M-system 20VS8-202N Instruction Manual

INSTRUCTION MANUAL
ISOLATION AMPLIFIER
(small size, input isolation, DIP type)

BEFORE USE ....

Thank you for choosing M-System. Before use, check the
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 voltage range & power consumption
15V DC rating: Rating ±5%, approx. 7.5mA (with no load)
■ ENVIRONMENT
• Indoor use
• Do not install the unit where it is subjected to continuous
vibration. Do not apply physical impact to the unit.
• Environmental temperature must be within -25 to +85°C
(-13 to 185°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
TERMINAL CONNECTIONS
■ EXTERNAL DIMENSIONS mm (inch)
max. 53.3 (2.1)
40.6 (1.6)
1 2 3
38 37 36
2.54 (.1)
40.6 (1.6)
0.46 (.02) dia.
18 19
22 20
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
MODEL
■ 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 ø1.6 and through-hole ø1.0 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.
PIN ASSIGNMENTS
17.8 (.7)
1
2
3
18
19
20
12.7 (.5)
22
36
37
38
20VS8-202N
20VS8-202N
Non-inverting Input
Input COM (–)
Inverting Input
Output COM (–)
Output (+)
Power Supply (+)
Power Supply (–)
Reference Voltage Source (+)
Reference Voltage Source (–)
Feedback
EM-4444 P. 1 / 4