Many servo applications exist in which it is more practical to use a DC power supply for the motor bus power instead of using AC power. Some of these include the use of batteries, generators, low voltage DC power supplies, and there are cases…
KCM modules (KOLLMORGEN capacitor modules) absorb kinetic energy generated by the motor when it is operating in generator mode (in the second and fourth quadrants; see Four Quadrant Operation). Normally, this energy is dissipated as waste via brake…
Since the failure rate of the servo amplifiers is very small, a line protection is sufficient from cost perspective. Further cost saving can be reached by group protection concept. If however a selective protection of the power supply is required…