VFD purchase specification
If you follow our blog regularly then you are aware of the few posts published by us that deal with VFD specifications [1, 2]. The last post on this topic [2] also triggered some discussion (which is always welcomed and appreciated).
I am convinced that a balanced and performance oriented specification is the best variant for the purchaser as well as the manufacturer. Quality shall be the focus rather than quantity. Of course, I fully understand that “too open” specification is dangerous as you could end up buying something that does not fir the purpose. On the other hand “too tight” or “too restrictive” specification may unnecessarily eliminate certain solutions and manufacturers.
Therefore, a balance needs to be found. But how to find it? My advice may sound simple: Specify what is important for you and for the specific project. Is it reliability? Is it a small footprint? Is it high efficiency? That might be very individual.
If something is irrelevant you may leave it out. In my opinion it is good to understand the background of each specific requirement (the more you know the less you fear). Otherwise it is really difficult to discuss potentials exceptions or deviations with perspective bidders or to propely assess an alternative solution. Remember that some of the best solutions are sometimes developed in a dialogue.
VFD purchase specification (template)
You can purchase a VFD specification template that we have prepared. It is kept simple and to the point – we have cut the fluff and included real content. As mentioned above, the specification focuses on the performance which is what you really need in the end. It is not written for one vendor or one solution. It does not discriminate.
The document can be used directly of can be integrated into larger specification.
References
[1] Project specifications: Too little or too much? https://mb-drive-services.com/projspec-1/
[2] 4 types of VFD specifications: What is the best approach? https://mb-drive-services.com/4-types-of-vfd-specifications-what-is-the-best-approach/
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