Powell Industries commissioned Bus Solutions to design and manufacture a complete Product test and exercising system.
The core of the system was a bespoke multi layer high voltage high current PCB backplane which could be inserted with 9 high current relay multiplexing cards. Each card comprised of 61 relay and a control interface to an National Instruments PXI system. The outputs from the backplane were connected to a personality module tray on ultimately to the product under test. Extra interface such as digital, rs232, rs485, CAN and Profibus were also connected to the personality tray. This tray was also removable for ease of wiring and the insertion of a new part for testing.
Internal trays were fitted with power supplies for control and supplying the unit under test. The system was built in a 40 U cabinet and all internal wiring and PCB’s were protected with monitored Breakers