Underwriters Laboratories (UL) is a century old consulting and certification company that is known throughout the world for its stringent levels of certification for electrical devices and components. Industries such as manufacturing, mining, energy, etc. need to follow a certification system for the equipment they procure to make sure their property and personnel are out of harm’s way. Out of the several UL standards that exist, company's that provide electrical components should be UL508A certified.
The 1970s saw the introduction of PLCs or Programmable Logic Controllers, which would forever change the way automation is achieved in industrial environments. Known for its rugged design and scalable implementation, the PLC was adapted by all major manufacturers and to this day is the norm for industrial automation. Allen-Bradley, Omron, Siemens, AEG, etc. became the leaders in PLC manufacturing, and soon the controllers had the processing capability of a computer while withstanding harsh industrial conditions.
Variable Frequency Drives (VFDs) have slowly become the industrial norm for controlling the output of three-phase AC motors. By varying the voltage and frequency, VFDs achieve smooth and reliable control of the motor’s torque and speed. From motion control applications to ventilation systems to heavy manufacturing, VFDs have become a staple in the industrial landscape.
Variable Frequency Drives form an essential part of any manufacturing plant. Its continuous operation is necessary for maintaining a plant’s output, and any failure results in a chain reaction, effectively bringing the entire industry to a standstill.
In order to stay ahead in industry and to keep a company profitable, it is important to stay up to date with technology. Using the most efficient systems and products in manufacturing can help your company save money and save energy, which helps to not pollute the earth.
It’s a beautiful day outside. But the sun is high overhead and the temperature is going through the roof. As the air conditioning struggles to keep up, all the machinery, drives, panels are running, doing their job. Then, all of a sudden, everything shuts down. After investigation, you find that one of your drives overheated and shorted out the whole area. Heat dissipation in variable frequency drives (VFDs) or AC drives is an easy thing to overlook, but could lead to devastating downtime. Here are some tips on what to keep in mind when calculating how cool to keep drive enclosures.
Topics: Motors & Drives
When it comes to industrial configurations, one of the most important pieces of the puzzle is an energy efficient installation of variable frequency drives (VFDs). Also known as adjustable-frequency drives (AFDs) or AC drives*, VFDs should be a mainstay in nearly any manufacturing operation. After all, being energy efficient is not only more time efficient, but it also ultimately saves in many different costs.
Many motors are controlled by a valve that releases fuel as needed and a vane that regulates the air current flowing into the motor. In these cases, the speed of the motor is constant. These motors are often controlled by switching the motor on or off. Some other motors are two-speed motors and are slightly more efficient than the single speed motors. However, both of these types of motors are inefficient with regards to energy. Variable speed drives (VSDs) or adjustable speed drives help to eliminate this inefficiency.
Topics: Motors & Drives
Starting a motor can be compared to accelerating too hard after a red light turns green; everyone gets jerked around and everything goes flying. There’s nothing gentle about it and it can even hurt. With motors, it’s the same thing. If a motor starts up with too much power, too fast, it can be damaging. Soft starters are one way to prevent violent starts. Not only do they prevent damage, but they can save money and add efficiency as well.
Environmental concerns have pushed the world towards better energy efficiency. In the long run, energy saving practices can also save money. However, to actually reduce energy usage, new technology is needed. Equipment and machines in the manufacturing industry have had major improvements in recent years so that these practices are possible.