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5-4 OPERATION ON BYPASS VOLTAGE BEYOND ALLOWABLE RANGE
The UPS can automatically detect the voltage in bypass mode. The protection range is
+15%~-20%. When the bypass voltage is beyond protection range, the UPS will not supply
output power to the load.
5-5 OVERLOAD AND SHUTDOWN OPERATION
Overload Operation
When the UPS detects an output overload, it will commence a countdown (The length of time
depends on the severity of the overload.). If the UPS is still overloaded at the end of the
countdown, the UPS will automatically shut down and enter BYPASS mode.
Overload Condition
LCD Display Message
Countdown to Shutdown
102%-125%
OVERLOAD 102%
LOAD=XXX%X.XXKW
1 minute
125%-150%
OVERLOAD 125%
LOAD=XXX%X.XXKW
30 seconds
>150%
OVERLOAD 150%
LOAD=XXX%X.XXKW
Immediate
Shutdown Operation
Condition
LCD Display Message
Extended Overload
OVERLOAD XXX%
SHUT DOWN
Output Short Circuit
OVER CURRENT
SHUT DOWN
Remote Shutdown Command
REMOTE COMMAND
SHUT DOWN
Emergency stop power off
EMERGENCY STOP
SHUT DOWN
DC BUS Fault
+/-DC BUS HIGH/ LOW
SHUT DOWN
Internal Temperature Faults
OVER TEMPERATURE
SHUT DOWN
BYPS OUT OF VOLT
LOAD = XXX% X.XXKW
When the bypass voltage is higher than 115% of rating voltage, the
UPS will alarm and will not supply output power to the load. The
message “BYPS OUT OF VOLT” will also be displayed on LCD.
When the bypass voltage is lower than 80% of rating voltage, the UPS
will alarm and will not supply output power to the load. The message
“BYPS OUT OF VOLT” will also be displayed on LCD.
