So I've finally got my FP2NC back. Well, actually I've had it all along but the conditions in my last shop made it all but unusable with the cold temperatures and weak, variable power. It really felt like abuse with how often the control would crash that I pretty much stopped using it all together. I've got a new shop with better power and things are looking up.
One thing that bothers me is the noise of my rotary phase converter. I'd really like to quiet it down and thinking that I will eventually move it out to the shed as a Phase Perfect just isn't in the budget. I've noticed something interesting, however, and I want to get the opinion of those more versed in the electrical internals of Deckels.
My power supply setup is 220V to an American Rotary 10hp phase converter to a 3 phase 220v -> 400v 3 transformer. I get about 384 Volts to the mill. When I was battling electrical issues last year I attempted to make sure that the control was isolated from the generated leg of the transformer. In reality this wasn't possible because the 3 phase transformer shares coils between the phases so fluctuations in any leg affect the voltage of the other legs. As an extreme example, if I turn the rotary off, I get ~335v from the two other legs.
One night as I was heading out I forgot to turn the mill control off before turning off the phase converter.... and it kept running. I could change modes, edit programs etc. Obviously I couldn't run the spindle or table feeds but everything else seemed to work until the way oil pump came on due to the timer and it crashed the control.
So my question, If I found a way to disable the hydraulic pump timer, could I power down the rotary phase converter while programming, editing and moving programs back and forth to quiet things down and only power it up when needed or is the 13% voltage drop going to damage the control? As I am typing this, it sounds like a stupid idea and I will probably just forge ahead with moving the rotary out to the shed. From a curiosity perspective, however, I would still be interested in learning what the possible repercussions of undervolting the control by that much would be.
Teryk
One thing that bothers me is the noise of my rotary phase converter. I'd really like to quiet it down and thinking that I will eventually move it out to the shed as a Phase Perfect just isn't in the budget. I've noticed something interesting, however, and I want to get the opinion of those more versed in the electrical internals of Deckels.
My power supply setup is 220V to an American Rotary 10hp phase converter to a 3 phase 220v -> 400v 3 transformer. I get about 384 Volts to the mill. When I was battling electrical issues last year I attempted to make sure that the control was isolated from the generated leg of the transformer. In reality this wasn't possible because the 3 phase transformer shares coils between the phases so fluctuations in any leg affect the voltage of the other legs. As an extreme example, if I turn the rotary off, I get ~335v from the two other legs.
One night as I was heading out I forgot to turn the mill control off before turning off the phase converter.... and it kept running. I could change modes, edit programs etc. Obviously I couldn't run the spindle or table feeds but everything else seemed to work until the way oil pump came on due to the timer and it crashed the control.
So my question, If I found a way to disable the hydraulic pump timer, could I power down the rotary phase converter while programming, editing and moving programs back and forth to quiet things down and only power it up when needed or is the 13% voltage drop going to damage the control? As I am typing this, it sounds like a stupid idea and I will probably just forge ahead with moving the rotary out to the shed. From a curiosity perspective, however, I would still be interested in learning what the possible repercussions of undervolting the control by that much would be.
Teryk