I was bench testing my DYN3s and 750W DST servos last night with the drive tuning software. Servos on the bench, no load. Power was with only 120 V, as I wasn't in my shop near 240 outlets. When running constant speed, the drives would fault consistently, just over 2600 rpm with a lost phase fault. Should I be concerned? This is shy of the 3000 rpm rated speed, and well short of the 5000 rpm no load speed I was expecting from these servos.

Thanks,
-Steve

Sent from my Nexus 10 using Tapatalk