The 1336F-MCB-SP1E unit is an Allen-Bradley Adjustable Frequency AC Drive part, which has a product line of 1336 PLUS II. It is the main control board that has 115 Volts AC of input power with +/- 10% as an acceptable range. This 1336F-MCB-SP1E unit features an “S” curve acceleration/deceleration profile, dynamic braking, dual acceleration/deceleration profiles, line loss restart mode, seven preset speeds, negative slip compensation (droop), proactive current limit, and DC injection braking. Three skip frequencies, flying start, last four event fault memory, and line loss restart mode are also included with its programmable features. This 1336F-MCB-SP1E unit has planner construction and a small size that helps conserve expensive panel space. It meets NEMA and European standards and provides real-time diagnostics.

The special function of this 1336F-MCB-SP1E unit includes step logic, auto restart on power up, process PI controller, selectable fault reset and run, auto-tuning, speed sensitive electronic overload, traverse function, and auto economizer. Multi-lingual selection, sensorless vector control, and selectable Volts per Hertz mode are some of its operational features. It also has a laminar bus design that lowers the internal inductance, which further helps in improving IGBT (Insulated Gate Bipolar Transistors) performance and reducing snubber losses. The isolated power and logic of the 1336F-MCB-SP1E unit both help in eliminating noise in order to give stable operation. The protective feature of the unit includes six drive alarms, overcurrent stall, fault reset input, and overvoltage stall. Pulse train input, high-speed input, flexible analog inputs/outputs, control output contacts, and encoder feedback closed-loop speed control are some of the I/O interface features of this unit.