When’s the last time you looked at your Variable Frequency Drive? While it is nice to “set it and forget it”, it is worth looking at again. Specifically, looking at your resistors. How much energy are they dissipating? Is the resulting heat hazardous? You could put all the energy back into your system, which means:
You could be saving money
A great cost-effective way of checking in on your resistors is the Bonitron M3660 Regen Energy Monitor.