20VS7-205D

INSTRUCTION MANUALISOLATION AMPLIFIERMODEL 20VS7-205D(general purpose input isolation)

BEFORE USE ....
Thank you for choosing us. 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 our sales office or representatives.

■ 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 diameter ø1.5 and through-hole ø0.9 are recommended.

■ PACKAGE INCLUDES:
Amplifier........................................................................ (1)■ MODEL NO.
Confirm that the model number described on the product isexactly what you ordered.
■ INSTRUCTION MANUALThis manual describes necessary points of caution whenyou use this product, including installation, connection andbasic maintenance procedures.

■ AND ....
• The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required forsatisfying complete performance described in the datasheet.
• With voltage output, do not leave the output terminals
shortcircuited for a long time. The unit is designed to endure it without breakdown, however, it may shorten appropriate life duration.

POINTS OF CAUTION■ POWER INPUT RATING & OPERATIONAL RANGE• Power Supply
Operational voltage range: 15V DC
Power consumption: approx. 7mA DC (no load)
Install the filter for the power supply as indicated below.
+15VPOWER
COM560µH++––

510µF

10µF

4

■ ENVIRONMENT• Indoor use• When heavy dust or metal particles are present in the air,install the unit inside proper housing with sufficient ventilation.
• Do not install the unit where it is subjected to continuousvibration. 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.

CHECKING
1) Terminal wiring: Check that wiring is correctly connected 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% ofthe full-scale.
4) Output: Check that the load resistance meets the described specifications.

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 accuracy described in the data sheet.

TERMINAL CONNECTIONS■ EXTERNAL DIMENSIONS mm (inch)MAX. 54 (2.13)

MAX. 15 (.59)

21 2

4. 81 (.19)

45

0.75 (.03) dia.
44.45 (1.75)

0.65 (.03) dia.

3 4 5

5.42 (.21)[9.58 (.38)]

39.37 (1.55)

2.54 (.1)
3.74 (.15)

INPUT (–)■ TERMINALASSIGNMENTS
3OUTPUT(+)

3 4 5

2.54 (.01)

1 2

2.54 (.1)
4. 81 (.19)

MAX. 15 (.59)

2(.08)

MAX. 25 (.98)

48 (1.89)

PIN ASSIGNMENTINPUT (+)
1
INPUT (–)
2
PIN ASSIGNMENT3OUTPUT (+)
OUTPUT(+)(–) / POWER SUPPLY (–)
1 4 INPUT
5POWER SUPPLY (+)

6 (.24)17.06 (.67)

3(.12)

4(.16)

MAX.25 (.98)

2.94 (.12)

MAX. 54 (2.13)

INPUT

OUTPUT (–) / POWER SUPPLY (–)
POWER SUPPLY (+)
+ 1

3 +

– 2

4 –
5 +

OUTPUT
POWER SUPPLY

18 (.71)

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-4440 Rev.1

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