Toshiba 1600EP Series Instruction Manual page 51

protection item
lCD message
Cause
high ambient temperature
operation mode
Shutdown – no output
after Fault
audible alarm
Visible alarm
relay Contact
alarm
auto-retransfer
1600ep Series instruction manual
BUILT-IN UPS FAULT PROTECTION FUNCTIONS (CONT'D)
internal overheat
OVERHEAT
Fan failure;
DC Circuit overvoltage
DC-OV
Chopper malfunction
bypass operation – Chopper and inverter are stopped
inverter ol – transfer to bypass
yes – Continuous buzzer
red Fault leD on
Fault relay closed
bypass relay closed
no
DC Circuit overcurrent
DC-OC
inverter/chopper fault
43