This piece of industrial technology is a part of the Multilin MM 2 series, from General Electric. The GE Multilin series was built to provide efficient reports and relaying for cheaper than other discrete devices, as well as protect the equipment it’s reporting on. These models are outfitted to be the most efficient devices of their class, to combine controlling functions and management and motor protection functions, which would be found on a low voltage motor control center. But these models are intelligent MCC Controllers.
The MMII-PD-1-2-MOD616-120 model is built to handle issues such as possible overload and phase imbalances. Physically, should a motor contactor fail, or a rotor becomes out of place or locked/stalled, then this module is capable of overriding these conditions and making sure they resolve themselves, or, that an operator is altered to the problem.
This model is outfitted with a series of integrated hardware that allows more efficient and wider range of action and monitoring. Internally in this unit is a hot, winding thermistor circuit, and an undervoltage automatic restart module. The former of which alters the electric input should a significant change in temperature occur, while the latter restarts the unit’s startup process to achieve a nominal power intake.
The MMII-PD-1-2-MOD616-120 is externally integrated with up to 20 I/O ports: 4 outputs and 16 outputs. The output ports are composed of a pair of contactor outputs and a pair of programmable outputs. The inputs are made of 6 fixed input ports and up to 10 programmable inputs.