DO Supply Blog

Omron PLC vs Allen Bradley PLC

Allen Bradley MicroLogix 1200 PLC PLCs are programmable controllers that are specially designed for applications in the industry. Before the...
Read More

Why Do Some VFDs Have Brakes?

A Variable Frequency Drive(VFD) is a power conversion electronic device used to control the speed of an AC induction motor,...
Read More

Why Do Some VFDs Have Encoders?

The Variable Frequency Drive (VFD) is an electronic device used to control the speed of an AC motor, by converting...
Read More

What Does I/O do on a VFD?

VFD is a motor control device used in electromechanical systems, which drives an electric motor and controls its speed and...
Read More

RX3i CPU Selection Guide

A) CPE400 The RX3i CPU series has only one standalone CPU (IC695CPE400). It functions independently, unlike other models which are...
Read More

Omron PLC vs Allen Bradley PLC

PLCs are programmable controllers that are specially designed for applications in the industry. Before the advent of PLC, the industrial control system was a relay contractor system. However, these relay systems had many disadvantages, such as complicated wiring, longer durations for designing and production, problematic maintenance, fewer functionalities, and a variety of adaptations difficulties. PLCs use programmable storage for storing the instruction set of logic, timings, counting, and mathematical operations. They act as a controller…

Read more

Why Do Some VFDs Have Brakes?

A Variable Frequency Drive(VFD) is a power conversion electronic device used to control the speed of an AC induction motor, by converting a fixed frequency, fixed AC supply voltage to a variable frequency AC voltage input to the motor. And since the frequency is directly proportional to RPM (Revolutions per Minute), the RPM speed of the AC induction motor can be controlled by regulating the frequency and voltage of its input power. For example, if…

Read more

Why Do Some VFDs Have Encoders?

The Variable Frequency Drive (VFD) is an electronic device used to control the speed of an AC motor, by converting the fixed frequency and fixed AC voltage being supplied to the motor into a variable AC frequency and voltage. By adjusting the motor’s input frequency and supply voltage, the VFD can control an AC motor to operate at numerous different speeds. VFDs also have the capability to control ramp-up during motor start-up and ramp-down when…

Read more

What Does I/O do on a VFD?

VFD is a motor control device used in electromechanical systems, which drives an electric motor and controls its speed and torque by changing the frequency and voltage of the power supply. Why VFD?  The modern VFD drives are capable of integrating networks and diagnostic capabilities for better control performance and more productivity. So, we can say that the three main reasons for choosing VFDs as a controller in an application is saving energy, intelligent motor…

Read more

RX3i CPU Selection Guide

A) CPE400 The RX3i CPU series has only one standalone CPU (IC695CPE400). It functions independently, unlike other models which are usually plugged into a backplane. Two mounting possibilities are facilitated; mount on a DIN rail or install in a cabinet. The CPE400 is the latest and most advanced CPU with unmatched processing power, performance, and features. It has a quad-core 1.2 GHz AMD G-Series processor. The operating system in this CPU is VxWorks, similar to…

Read more

90-30 Series vs RX3i Series

The 90-30 series of programmable logic controllers (PLCs) by General Electric (GE) was launched in 1991. This series has been serving automation control requirements of the industry for many years. This series provided flexibility and modularity, making it the primary choice for field professionals. In comparison, the RX3i is a programmable automation controller system, abbreviated as PACSystem, a new and upgraded series of automation controllers that provides a shift towards a more holistic vision of…

Read more