V
7.1. Preparations..............................................................................................................................41
7.2. Commissioning ..........................................................................................................................42
7.2.1. Start-Up UPS with Internal Battery ....................................................................................42
7.2.2. Start-Up UPS with External Battery....................................................................................42
7.3. Decommissioning ......................................................................................................................43
7.4. Maintenance Bypass Commissioning Instructions (Transfer Load Supply from UPS to Internal
Maintenance Bypass).......................................................................................................................43
7.5. Maintenance Bypass Decommissioning Instructions................................................................44
7.6. Emergency Switching Device (ESD)...........................................................................................44
7.7. Connection to a Generator .......................................................................................................44
8. OPERATING PROCEDURES FOR PARALLEL SYSTEMS .......................................................................45
8.1. Introduction...............................................................................................................................45
8.1.1. Redundancy........................................................................................................................45
8.1.2. Power Increase ...................................................................................................................45
8.2. Procedure for Commissioning and Start-Up (First Installation)................................................46
8.3. Procedure for Decommissioning...............................................................................................48
9. MAINTENANCE.................................................................................................................................49
9.1. Batteries ....................................................................................................................................49
9.2. Battery Fuses.............................................................................................................................49
9.3. Fans ...........................................................................................................................................50
9.4. Capacitors..................................................................................................................................50
10. TROUBLESHOOTING.......................................................................................................................51
10.1. Bypass voltage failure Alarm...................................................................................................51
10.2. Bypass phase sequence wrong Alarm.....................................................................................51
10.3. Inverter not sync. with bypass Alarm......................................................................................51
10.4. Input phase sequence wrong Alarm .......................................................................................51
10.5. Rectifier not sync. with input Alarm .......................................................................................51
10.6. DC voltage failure Alarms........................................................................................................51
10.7. ESD active Alarm .....................................................................................................................51
10.8. Ambient temperature high Alarm...........................................................................................51
10.9. Overload Alarms......................................................................................................................51
10.10. Maintenance bypass active Alarm ........................................................................................52
10.11. Battery test failure Alarm......................................................................................................52
10.12. Input voltage failure Alarms..................................................................................................52
10.13. Inverter temperature high/ Rectifier temperature high Alarms ..........................................52
Appendix-1: Technical Specifications ( 10-120kVA )............................................................................53