ICP DAS USA TSG-3781B Manual de usuario

Ver1.00，2023 Mar. ～1～

tSG-3781B/tSG-3781L User Manual

Introduction

The tSG-3781B/L is a 1-channel DC current input signal conditioning module which can convert 4 ~ 20 mA

current input to PWM output. This provides an economical solution when the 4 to 20mA current need to be

converted to PWM output. The duty cycle, 0% to 100%, of the PWM output is a linear transformation of the 4 to

20mA current input. The frequency of the PWM signal can be in the range 600Hz to 800Hz and it can be

adjusted by buttons.

The tSG-3781B/L includes a monochrome graphic LCD display which shows the duty cycle and frequency of

the 1-channel PWM output signal. 4 kV ESD and 4 kV EFT protection are also provided to enhance noise

protection capabilities in industrial environments.

Note1: The setting buttons are at the bottom of the LCD. (tSG-3781B)

The setting buttons are on the left side of the LCD. (tSG-3781L)

Appearance

Ver1.00，2023 Mar. ～2～

Applications



Heating system in buildings

Ventilation system

Controlling servo-assisted diaphragm valve

Ver1.00，2023 Mar. ～3～

PIN Assignment

Wire Connection

Iin Input

PWM Output

Ver1.00，2023 Mar. ～4～

Block Diagram

PWM Duty Cycle and Frequency setting

The following figures show the button switch positions used to configure the channel PWM duty

cycle and frequency range. The PWM frequency configuration button switches are located left

side the module for front view.

PWR The power LED of the module

Mode Press MODE to modify the channel frequency, the channel frequency flashes.

Up Press UP to increase the frequency, long press to increase quickly.

Down Press DOWN to decrease the frequency, long press to decrease quickly.

Set Press SET to save the modifi ed value.

Press MODE during the modifi cation to stop the modification.

Ver1.00，2023 Mar. ～5～

Dimensions

Technical Service

Please E-mail your problem description to [email protected] when you have any questions.

More detail information: www.icpdas.com

Este manual sirve para los siguientes modelos

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