Jaakko Myllylä, manager of ABB Drives and Controls Service in northern Finland, picks up the story. “Reliability was clearly the main target of the pilot at SSAB, as we believed we could make better use of the intelligence built in to the drives to minimize the risk of process disturbances.”
The results were very good. As the project was starting up, the team observed that one of the drives was giving frequent alarms. Putting the system immediately to the test, data from this drive was analyzed by the ABB experts located over 600 km away in Helsinki. They spotted a current imbalance and, based on their experience, knew that this type of alarm sequence often indicates possible damage to power components. This, in turn, can stop both the drive and the elevator.
“Thanks to the Remote Service, even though it was still in the pilot phase, we could spot this possible elevator problem at an early stage,” explains Aki Heikkilä, an electrical maintenance supervisor. “We were getting alarms and ABB saw indications that the drive was acting abnormally and might become faulty. We went to check it and, upon examination, we confirmed that some drive components needed replacing. Happily, we can plan this work before there was any production disturbance or unplanned downtime.”