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2.9.3 Bypass Mode
In case when UPS is overloaded or if inverter cannot generate a quality AC output due to any
problem and if bypass voltage and frequency values are within the limits, the load will be fed
from the static bypass source (mains). UPS without interruption switches from inverter to AC
source (mains) via static transfer switching. If inverter output and mains are not synchronized,
switching may take up to 15ms varying according to load type.
2.9.4 Automatic Restart Mode
In case of any failure of the mains, UPS will continue feeding the critical loads until the batteries
reaches the end of discharge voltage level. UPS, will go on working until the batteries are drained
and then will shutdown. After the mains conditions gets back to normal, UPS automatically stats
to operate, in the period determined by the user. In this case, UPS continues to operates in
normal (online) mode as long as the mains values are in desired criterions. For IST5 Series
UPS, this feature is not activated in the initial factory set-up.
Summary of Contents for IST5 Series
Page 2: ...2 2 SERVICE MANUAL 10 15 20 30 40 60 80 100 120 160 200 300 KVA...
Page 6: ...9 9 2 PRODUCT DESCRIPTION 2 1 General View 10 15 20 30 40KVA...
Page 7: ...10 10 60 80KVA...
Page 8: ...11 11 100 120 160 200 300 KVA...
Page 13: ...16 16 2 5 Side Interior View 10 15 20 30 40KVA...
Page 16: ...19 19 2 7 Electrical Connections...
Page 35: ...38 38...
Page 36: ...39 39...
Page 51: ...54 54 30 40KVA 60 80 100 120 160 200 300 KVA...
Page 54: ...57 57...
Page 71: ...74 74 1 Turn CB2 ON 10 15 20KVA 30 40KVA...
Page 72: ...75 75 60 80 100 120KVA 2 Stop the UPS using the user front panel Main menu Control Stop...
Page 73: ...76 76 3 Turn CB1 CB3 and CB4 OFF 10 15 20KVA 30 40KVA...
Page 100: ...103 103 Signal Flow Diagram zole trafo means isolated transformer...
Page 102: ...105 105 20 30KVA IGBT Driver 40KVA IGBT Driver...