Unlocking VFD Precision
A guide for engineers and technicians in designing, implementing, or maintaining HVAC and pump systems, including PID control and VFD (Variable Frequency Drives)
Explore Eaton's DG1 as we demystify setup, configuration, and application-specific parameter selection for seamless integration of PID control within VFDs, enhancing temperature, pressure, level, and flow regulation with optimized efficiency.
VFDs and PIDs: An Explanation
The purpose of this guide is to provide guidance for technicians and engineers that are responsible for the designing, implementing, or maintaining a Pump system, Heating, ventilation, and air conditioning (HVAC) system, including but not limiting Air Handler, Chillers, or other systems that requires the set-point temperature, pressure, level, or flow to be regulated continuously by the PID Controller, in our case a Variable Frequency Drive (VFD).
Instructions and examples will be based on Eaton's DG1. This guide will navigate, configure, and explore the functionality of these systems, including selection of the proper software or parameter based on the application.
While there are systems currently out in the field that utilizes a dedicated controller, i.e. PLCs , SCADA, DCS, and other PAC, to perform the PID controls, we will focus on using the VFD's internal logics and capabilities to perform the PID functions. As we take a deeper dive into the parameters associated the PID functions, users will have better understanding as to why those value are important to ensured the system is tuned to the applications.
