Pre-purchase testing. Why is theory not enough in non-standard applications?

Control - ServiceNewsPre-purchase testing. Why is theory not enough in non-standard applications?

19.12.2025

Selecting a frequency inverter very often starts with a catalogue, motor data, and proven schematics. In many cases, this is sufficient. The problem arises when the application is not “by the book.”

Sometimes, already at the planning stage, it is impossible to clearly assess how a device will behave in a specific process. This is not about incorrect selection or lack of expertise, but about a lack of data that would confirm assumptions under real operating conditions. In such situations, the question is not “will the inverter work,” but rather “will it work exactly as we expect,” and “how much will we actually save by investing in the equipment?”

This is precisely the moment when testing becomes worthwhile—not as an alternative to catalogue-based selection, but as its complement. A few days of drive operation in a real process make it possible to verify aspects that cannot be reliably predicted at the design stage and that often determine the profitability of the entire investment.

Increase your influence on the decision-making process

Testing shows not only the stability of the system’s operation, but also the real impact of control on energy consumption, process dynamics, and operating costs. As a result, purchasing decisions stop being based solely on assumptions and start being driven by real data.

In this way, a drive rental service becomes a tool for maintenance experts and production directors to increase their influence over the shape of production processes. It allows them to safely test, compare variants, and calculate results—before purchase costs and investment commitments arise.

How it works at Control-Service

At Control-Service, we are developing our drive rental service so that testing in real conditions is fast and convenient. We offer proven frequency inverters, ready to be commissioned in the customer’s specific application. Each unit is configured with basic parameters, and our team supports selection, commissioning, and monitoring of operation.

As our customer, you can:

  • test a drive under real load,
  • check system stability and response to changes in process parameters,
  • assess energy savings and operating costs,
  • make an investment decision based on data, not only catalogue assumptions.

In practice, such a procedure enables faster and more confident drive implementation, reduces the risk of oversizing or incorrect investment, and provides peace of mind that the decision is data-driven—including data needed to calculate the return on investment.

A list of units ready for use in test applications can be found here:
https://control-service.pl/en/offer/serviceofdrives/drivers-rental

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