Product Description:

The SE2102 is a DC motor controller produced by Kollmorgen in the SE2000 DC Motor Controllers series. Designed for installation in variable-speed drives, the unit converts incoming AC line power into a controlled DC armature supply for permanent-magnet or shunt-wound motors used in conveyors, extruders, and process equipment. By modulating voltage and current, it maintains commanded speed and torque across light or continuous duty cycles. This makes the controller suitable for machinery that needs steady motor response during startup, load changes, and normal production operation.

The armature circuit can be adjusted from 0-180 VDC, giving proportional speed control over the motor’s main power path. A separate field supply of 100/200 VDC supports both standard and high-strength magnets, letting the same controller match multiple motor designs. Output capacity spans 1/2–2 HP, so the board can drive small pumps as well as heavier production rolls without component changes. The power stage accepts 230 V ±10% at the mains terminals, allowing operation on common industrial single-phase feeds even when voltage fluctuates. Closed-loop operation with armature feedback achieves a 30:1 constant-torque speed window before derating becomes necessary. This control range helps the motor remain responsive at low and moderate speeds while still supporting stable operation through normal changes in process demand.

Because the input is single-phase, installation uses a simple supply arrangement that fits many industrial panels. The controller synchronizes its internal firing circuits with line frequencies of 50/60 Hz ±2 Hz, so the same model can operate from different utility standards without circuit changes. For remote commands, the speed reference accepts 4–20 mA or 0–10 V signals, which allows compatibility with common control devices and analog command sources. When a tachometer is connected, the closed-loop feedback tightens speed regulation to ±0.5% across its 50:1 tach range, improving speed stability during load variation. Armature-feedback operation also remains available for applications that do not use a tachometer but still require reliable adjustable-speed DC motor control.