Without maintenance bypass – MGE UPS Systems EPS 8000 User Manual
Page 35
Operation
page 2 —11
Users Manual
Q1 UPS INPUT CB
OPEN !
This message indicates that the input isolation circuit breaker is open or has tripped. It must be closed for
rectifier/battery charger start-up.
INVERTER OVERLOAD
CHECK P.F. AND KW
This message indicates that the inverter is in an overload condition, usually due to excessive real power (kW) being
drawn by the load. The flashing “KW” indicates that the operator should check the load real power. The inverter
will keep supplying the load for a certain amount of time depending on the overload level.
INVERTER FAULT
CALL SERVICE !
This message indicates that a fault has occurred in the inverter, and that service is required.
INVERTER SHUTDOWN
OVERLOAD > I MAX!
This message indicates that an overload greater than 1.5 times the full power rating of the inverter has occurred,
and that the inverter has shut down.
INVERTER SHUTDOWN
THERMAL OVERLOAD A
This message indicates that an overload below 1.5 times the full power rating of the inverter has occurred and that
the inverter has shut down. The flashing “A” indicates that the operator should check the load current.
I LOAD > IN
CHECK LOAD A
This message indicates that the load power being drawn is greater than the UPS full load rating. The flashing “A”
indicates that the operator should check the load current. The inverter or static switch will keep supplying the load
for a certain amount of time depending on the overload level.
TRANSFER FAULT
CALL SERVICE !
This message indicates that a fault has occurred that affects the transfer of the load between the inverter and the
bypass source. Service is required.
PH OUT OF TOLERANCE !
This message indicates that there is an out of tolerance condition between the inverter and bypass AC input (mains
2) sources. Transfer of the load between the inverter and bypass AC input will result in an interruption of load power.
Q4S BYPASS SWITCH
OPEN !
This message indicates that the circuit breaker Q4S is open. Transfer of the load from the inverter to the bypass
source is not possible.