Toshiba 1600XP SERIES Installation And Operation Manual page 62

Protection Item Ambient Overheat
LCD Message
Cause High internal ambient
Operation Mode
Shutdown – No output
After Fault
Audible Alarm
Visible Alarm
Relay Contact
Alarm
Auto-retransfer
52
UPS FAULT PROTECTION FUNCTIONS (CONT'D)
AOH
Fan failure;
Chopper malfunction
temperature
Bypass operation – Chopper and inverter are stopped
Yes – Continuous buzzer
Red Fault LED on
Fault relay closed
Bypass relay closed
1600XP/XPi Series Installation and Operation Manual – 60616-012
DC Circuit
Overvoltage
DCOV
Inverter/chopper fault
Inverter OL – Transfer to bypass
No
DC Circuit
Overcurrent
DCOC