System Fault Messages - Toshiba 1600EP SERIES Instruction Manual

System Fault Messages

When an abnormal operating condition occurs the following fault message will be displayed
FAULT (BYP OPER)
OUT-OV DC-OV >
Press
CANCEL or RESET keys to view the messages explaining the system fault (the ">" indicates
other faults:
LCD Message
DC-OC
OUT-OV
OUT-UV
DC-OV
OVERLOAD
DC-UNBALANCE
OVERHEAT
1600EP Series Instruction Manual
If the input voltage is normal when the fault occurs then the UPS will switch
immediately to the bypass mode to continuously feed power to the load. If the
input power is abnormal while in the bypass mode the UPS will shut down
the output to prevent load equipment damage.
LED Message
Red
LED
Flashes
Red
LED
Flashes
Red
LED
Flashes
Red
LED
Flashes
Red
LED
Flashes
Red
LED
Flashes
Red
LED
Flashes
Meaning/Action
Meaning: DC overcurrent condition occurred.
Action: UPS is probably faulty. Check the
UPS operating conditions at time of fault. Not
advisable to try restarting. Call for service.
Meaning: Output overvoltage condition
occurred.
Action: UPS is probably faulty. Check the UPS
operating conditions at time of fault. Not
advisable to try restarting. Call for service.
Meaning: Output undervoltage condition
occurred.
Action: UPS is probably faulty. Check the UPS
operating conditions at time of fault. Not
advisable to try restarting. Call for service.
Meaning: DC overvoltage condition occurred.
Action: UPS is possible faulty, input wiring
error, input overvoltage or connection of a
motor load. Try restarting. If condition persists
call for service.
Meaning: Output overload condition occurred.
Action: Reduce equipment load to 100% or
less and try restarting.
Meaning: DC voltage unbalance occurred.
Action: Possible causes are UPS fault or
connection of half-wave rectifi er load. Check
load and try restarting. If condition persists, call
for service.
Meaning: Overheating condition occurred.
Action: Check unit for blocked or in-operable
fan.Lower ambient temperature if 40° C or
greater.Bypass operation will also cease if
overheat condition is not corrected within 1 hr.
from inverter shutdown. Try restarting and if
condition re-occurs plan for total shutdown and
call for service.
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