Danfoss VLT Series Maintenance Manual Danfoss VLT215, VLT220, VLT230, VLT380, VLT415, VLT460 and VLT500V Frequency Inverters. Service Manual Manufacturers: Danfoss Models: VLT215 VLT220 VLT230 VLT380 VLT415 VLT460 VLT500V Contents: Maintenance Manual