So we've got a Carrier Infinity AC unit in the shop. It's a full variable speed compressor system and it works pretty good. Whenever it's running at a higher compressor setting, it will set a high compressor current alarm whenever one of the lathes ends it's cycle and the spindle ramps down. It kicks the compressor out for about 10 minutes before it restarts at which time the next ending lathe cycle kicks it out again. After a few times of this, the unit locks out the compressor all together.
I know in the past, I've put a freq meter on the panel and noticed that the frequency really jumps up from 60hz when the VFDs are braking the spindles. I'm assuming this is causing the issues with the AC unit. I can clamp an amp meter on the line going to the AC unit and it is't using 8.5 amps at full load.. as one of the lathes is braking the spindle it will push the meter up to 10-10.5 amps for that couple of seconds.
So what do I need to put on the line to the AC unit to smooth that out? Who makes what kinda line conditioner to deal with this??
I know in the past, I've put a freq meter on the panel and noticed that the frequency really jumps up from 60hz when the VFDs are braking the spindles. I'm assuming this is causing the issues with the AC unit. I can clamp an amp meter on the line going to the AC unit and it is't using 8.5 amps at full load.. as one of the lathes is braking the spindle it will push the meter up to 10-10.5 amps for that couple of seconds.
So what do I need to put on the line to the AC unit to smooth that out? Who makes what kinda line conditioner to deal with this??