SSD 540 Series Spindle Drive. Detailed Setting Up and Operating Instructions with Electrical Schematics. SSD 540 Series Spindle Drive, 545 Armature Converter, 5401 DC Motor Field Controller and 5600 Option Modules. Detailed Setting Up and Operating Instructions with Electrical Schematics and Spare Parts Identification.. Manufacturers: SSD Models: 540 Contents: Operators Manual Electrical Diagrams