5.5 Inverter Failure
Output Load short circuit when supply via inverter
If output load is short circuited while supply via Inverter, the UPS will shutdown Inverter
automatically and stop supply to the loads. The Fault LED lights up and the buzzer will beep
continuously. The UPS will not switch on automatically after short circuit condition is eliminated.
The UPS has to be re-start manually (refer to 4.5.1 ‘Start Up in Normal AC Mode’).
Fig 5.5
Output Short circuit when supply via bypass loop
If output load is short circuited under bypass mode, the input AC fuse/breaker will be activated
(open circuited) to prevent the output load from damage. You shall replace a new fuse with same
rating after the short circuit condition is eliminated.
5.6 Inverter/Internal Over temperature
If the UPS experiences internal over-temperature when Utility is normal, it will switch to bypass
loop. The UPS will switch back to inverter mode when the over-temperature situation is eliminated.
If over temperature occurs when Utility is abnormal, the buzzer will beep continuously and the Fault
LED will light up. The UPS will cut off supply to the loads.
5.7 Inverter Over-current and Inverter Output Voltage Out of tolerance
If the UPS inverter delivers over-current and out-of-tolerance voltage to its outlets, the UPS is out
of order. The UPS will switch to bypass loop when Utility is normal. The Utility LED, Bypass
LED and Fault LED will light up.
If these two fault conditions occur when Utility is abnormal, the UPS will cut off the supply to its
outlets and the Fault LED will light up.
Summary of Contents for 1000-3000VA
Page 13: ...4 3 Tower Configuration Setup Step 1 Step 2...
Page 14: ...Step 3 Step 4...
Page 15: ...4 4 Rack Mount Configuration Setup Step 3 Step 4 Step 5...
Page 16: ...Step 6 Step 7...
Page 19: ...4 5 6 Battery Replacement Step 1 Step 2 Step 3...
Page 20: ...Step 4...
Page 38: ...10 3 3 Installation Instructions Tower installation Stand alone unit Step 1 Step 2...
Page 39: ...Use with UPS Step 1 Step 2...
Page 40: ...10 3 4 Rack Mount installation Step 1 Step 2...
Page 41: ...Step 3 Step 4...
Page 42: ...Second Battery First Battery Bank UPS Connect DC Cable...
Page 44: ...Step 3 Step 4 10 3 7 Specifications...
Page 46: ...11 Technical Specifications...