6 Maintenance and Troubleshooting
IST Series UPS (10kVA-200kVA)
User Manual
86
the unit. At this time, please shut down the fault unit and pull it out of the cabinet, and then
inform the engineering technicist to maintain.
After pulling out the unit, there still has high voltage inside the unit and on the rear connector
pin. It is necessary to wait enough time (≥10min) and then open the cover to maintain.
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