About the DC2-72C
The DC2-72C drive was manufactured by Reliance Electric Rockwell. Within the drive’s enclosed design is a DC output current of 90/180 VDC and a NEMA 12k enclosure. The NEMA 12k enclosure on the DC2-72C drive means that oil-tight and dust-tight conduit hole plugs are common. However, conduit hubs are not supplied with a DC2-72C drive.
At a rated speed and load, the displacement power factor on the DC2-72C drive is 70%. The DC2-72C drive has an input voltage of 115/230 VAC or 50/60 Hz. The drive’s horsepower is 1.0/2.0 HP. The DC2 drive series features a 50/50 cycle power without any modification, a full-wave and half-controlled armature voltage rectifier with a back diode for enhanced armature form factor, a half-wave field supply for shunt wound D-C motors, an optional short circuit protection using an incoming line fuse, a unidirectional operation using coast-to-rest stop, and a motor overload protection using an internal motor thermostat.
Within the DC2 series drives, there is also a voltage regulator,an s-curve acceleration jumper, an AC input voltage jumper, a tach scaling jumper, a minimum speed disable jumper, and a voltage/tach feedback jumper. The tachometer requirements are either 7 VDC or 20.8 VDC per 1000 RPM design. Additionally within the DC2 series drives is a power cube which has within it all power semiconductors for reliable function and better maintenance time. Also included is a built-in half-wave field supply for use of wound field motors and a built-in surge suppressor which helps shield semiconductors from line transients for more reliable use.
