GE WES13-3 Multiplexer switch card

In most cases, one power supply can be used for the entire control system. However, depending upon the modules, drives, and external I/O used in your application, you may split the power distribution into two or more power supplies. For example, the Axis I/O on an MMC A2 module can be powered from the MMC, from the drive, or from another external power supply.

A possible ignition hazard within the MMC exists 

if the maximum currents listed for Bus 2 or Bus 3 are exceeded or if excessive current is drawn at the 24 V line going into the MMC. If these currents might be exceeded (due to improper wiring or external device failure), circuit breakers or fuses should be used in series with the 24 VDC going to and coming from the MMC. Specifically, the circuit breakers or fuses should be sized for 10 A total on the 24V line coming into the MMC, 1 A total from the +24 VDC OUT pins of the AXIS and AUXILIARY I/O connectors, and 5 A total from the I/O 24V pins of the GENERAL I/O connector. For maximum protection, use fast blow fuses. When using molded cables supplied by Giddings & Lewis to connect the MMC to the drives, no overload protection is required.

Application industry

The products can be used in the following industries: power plant, paper making, steel, mining, rubber, water supply, cement, chemical industry, glass, printing Textile, machinery, plastics, coatings, medicine, hospitals, food, hotels, scientific research institutions

This article from the temporal Ming sheng automation equipment co., LTD., reproduced please attach this link: http://www.stockdcs.com/