Building Management Systems

A BMS system is the heart of a complex buildings climate control system. This gives the owner and staff the ability to control multiple systems at the touch of a button! Which is why you want to ensure that it is installed and maintained properly. PGA is certified in many systems. The most common are Johnson & Honeywell.

Frequency drive controller

Understanding the VFD

It is a device that alters a driven load’s speed to complement the process requirements and achieve energy savings. With its built-in electronic overload protection, a VFD allows the motor to operate at any speed range.

It also acts as a motor’s soft starter since it reduces the initial inrush current on induction engines.


Give the owners the ability to control mechanical equipment at the touch of a button!

BMS systems are the heart of a mechanical system in most commercial buildings this system is used to diagnose errors while maintain multiple systems running data with the ability to change at a push of a button!


PGA is certified in Johnson & Honeywell controls, giving the user the ability to view live equipment running data, seeing system errors to help prevent equipment failure

Matching a VFD to an Application

Since most applications require mechanical solutions, understanding the basic principles of physics is essential when using VFDs. Consider the speed, horsepower, and torque developed at the motor shaft when applying the drive.

These characteristics must exceed or meet the torque and horsepower requirements of the machine being driven.

Common Pitfalls When Applying a VFD

Variable or Constant Torque

Understanding your machine’s type of load is important since drives are differently rated depending on whether they are used on a variable or constant torque application.

Special Starting or Stopping Torque

When managing high-inertia loads, you need special consideration and braking techniques.

Size by Amps, Not Horsepower

Ensure the VFD’s output current rating meets or exceeds the motor’s full load amps to avoid the mistake of sizing by horsepower.

Control Scheme

Make sure that your chosen VFD has the accurate I/O (inputs and outputs) for your control scheme. If your equipment has six digital inputs, avoid using a drive that allows only five.

Get in Touch With Us

Let our team assist you in applying the right VFD to your equipment. Reach out to us today to discuss your project requirements.