The XM® series from Rockwell Automation is the world’s first machine monitoring and protection system designed as a distributed network of modules deployed on an open standard industrial bus.
The XM-120E Eccentricity Module is an XM-120 Standard Vibration Module with alternative, XM-120E,firmware loaded. The XM-120E firmware is included on the distribution CD with every standard XM-120.
Eccentricity is the measure of the amount of bow in a rotor. Rotor bow can be a fixed mechanical bow, or it can be a temporary bow caused by uneven thermal heating or simply by the weight of the rotor (gravity bow). The XM-120E provides four key measurements including the peak-topeak eccentricity value, the instantaneous gap value and the minimum and maximum observed gap values.
Because the XM-120E uses the XM-120 Standard Vibration Module hardware module, many of the specifications of that module are common to the XM-120E, particularly with respect to approvals and its physical and environmental specifications. Refer to the XM-120 & 121 Vibration Module data sheet for details regarding these and other characteristics of the hardware.
