The Digital Service Vibra­tion Analysis moni­tors and analyzes fan vibra­tions and reso­nances in real-time during oper­a­tion. If vibra­tion veloc­i­ties reach crit­ical levels within a certain speed range or increase over time — poten­tially due to bearing dete­ri­o­ra­tion or dirt accu­mu­la­tion on the impeller — the service sends a noti­fi­ca­tion via epCloud. By intel­li­gently analyzing histor­ical and current oper­ating and vibra­tion data, the system calcu­lates a “change score.” If this score changes over the long term, it indi­cates a possible immi­nent defect. The respon­sible person can then order a service call to prevent an unplanned system stand­still.

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Through constant moni­toring, the service also provides an indi­cator of the service life of the bear­ings and extends it through proac­tive main­te­nance. For example, service personnel can remove debris, such as bird drop­pings and other deposits, from the impellers of an axial panel fan in the cooling tower in good time.

During initial commis­sioning with the ebm-papst Service app for customers and specialist part­ners, auto­matic reso­nance detec­tion is performed for fans equipped with a built-in vibra­tion sensor, with the collected data saved to address poten­tial issues. Centrifugal fans can expe­ri­ence reso­nances with increased vibra­tion veloc­i­ties in certain unpre­dictable speed ranges, depending on their instal­la­tion. If the fan is frequently oper­ated in such crit­ical ranges, the drive motor’s bearing system may be damaged, leading to prema­ture fan failure. For system oper­a­tors, these vibra­tions can be measured with external sensors but cannot simply be elim­i­nated. Auto­matic reso­nance detec­tion helps by preventing oper­a­tion at these crit­ical speeds, thereby enhancing the fans’ service life and oper­a­tional reli­a­bility.

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Digital services that measure and monitor your fans around the clock and provide intel­li­gent alarms and noti­fi­ca­tions offer the greatest bene­fits. Meet the chal­lenges of your industry with digital solu­tions from ebm‑papst.