GE DS2020PDMAG6 Communication module

The MMC consists of the motion control module (on the left) and the machine control module (on the right). The machine control side of the MMC unit contains the CPU module. Ladder logic programming is used for machine control. The motion control side of the MMC unit can be either an analog servo module or a SERCOS module. The analog servo module provides conventional analog/digital interfacing for two or four drives.

The typical signals needed to interface to a drive are provided by the module.

 The drive command is in the form of an analog voltage (±10V). Feedback is accepted from quadrature type encoders with RS422 style differential outputs. Digital I/O (+24 VDC) is used for drive signals enable, reset, and fault. The analog servo module is offered in both 2 1/2 and 4 1/2 axis configurations. An axis is considered to be an analog output with a corresponding encoder input. In each configuration shown below, note that there is an extra encoder input. This is referred to as a half axis.

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