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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 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 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 full load rating.
The flashing “A” indicates that the operator should check the load current. The UPS module or
SSC 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 upstream circuit breaker Q4S is open. Transfer of the load
from the inverter to the bypass source is not possible.
2 — 41Operation
User’s guide