The SG-3784M is a 4-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 SG-3784M includes a monochrome graphic LCD display which shows the duty cycle and frequency of the 4-channel PWM output signals. 4 kV ESD and 4 kV EFT protection are also provided to enhance noise protection capabilities in industrial environments.
| Display |
| Type |
Monochrome Graphics LCD (46×48 mm Viewing Area) |
| EMS Protection |
| EFT (IEC 61000-4-4) |
±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for each Terminal |
| LED Indicators |
| Status |
1 x Power and Communication |
| Analog Input |
| Channels |
4 |
| Range |
+4 ~ +20 mA |
| Accuracy |
±0.1% of full range |
| Bandwidth |
1 kHz |
| Input Impedance |
137 Ω |
| PWM |
| Channels |
4 |
| Type |
PWM |
| Sink/Source (NPN/PNP) |
Source |
| Frequency |
600 ~ 800 Hz |
| Duty Cycle |
1 to 100% |
| Mode |
Continuous |
| Power |
| Reverse Polarity Protection |
Yes |
| Input Range |
+10 ~ +30 VDC |
| Consumption |
0.1 W (Typ.)
96.2 W Max. (Note1) |
| Mechanical |
| Dimensions (mm) |
97 x 121 x 36 (W x L x H) |
| Installation |
DIN-Rail or Wall Mounting |
| Environment |
| Operating Temperature |
-25 ~ +75 °C |
| Storage Temperature |
-40 ~ +80 °C |
| Humidity |
10 ~ 95% RH, Non-condensing |
Specification Memo
Note1: At same time four channles PWM output 1A@24V at 100% duty cycle.
Note2: The PWM output voltage is linked with the power input voltage of the module.
