N1C NE Series User Manual
                                                                                        | |
Contents
| 
34 All rights reserved ©N1 Critical Technologies, Inc.NE Series (20-30kVA)User ManualChapter 4 Operation GuideIf the output loop current is less than 30A, it means the output voltage of parallel system isnormal. Normal =>Step 13 Abnormal =>Step 12Step 12 After powering down and getting rid of faults, perform Step 1.Step 13 After testing normally, close the switch of user load, then the starting of parallel system willbe finished.At this moment, the parallel system can supply power for load. The power on sequence of load,please refer to the requirements of single unit.----End4.5.2 Shut Down Parallel SystemStep 1 Close all loads.Step 2 Close each inverter according to the shutdown steps of the UPS.Step 3 Perform the shutdown steps of the UPS, and disconnect the relative input and output switchesof each UPS.----EndIt is recommended that you do not switch on or switch off the parallel system frequently when it isworking properly.4.5.3 Exit Parallel System OnlineWhen one UPS fails, it will exit from the parallel system automatically. In addition, an audible andvisual alarm is generated. You can follow the procedure showed in Figure4-2to exit the faulty UPS toachieve online thermal maintenance or replacement.Figure 4-2 Exit a faulty UPSClose the fault UPS accordingto shutdown procedureDisconnect the parallel unitsair switch to UPS in theparallel distribution box. |
Related manuals for N1C NE Series
manualsdatabase
Your AI-powered manual search engine