Quote Originally Posted by njhussey View Post
Today I was checking the wiring and powering up the relay to make sure that it bought the power on and that the door safety switch worked etc. and on measuring the voltage found that our single phase power supply is 242V which I think will mean that my PSU (25V+25V) will be putting out too high a voltage, or at least be too near the 80V limit of the AM882s for comfort....will dig out my calculations and have a look tomorrow :(
Neil chances are your mains power will most likely fluctuate up and down depending on time of day and demand around. My varies wildly upto 257v.!! . . . The drives will handle some over voltage without damage if just a slightly up but obviously not good running all the time above Max.!