SETSCREW-SQUARE HEAD 4D8318 - Caterpillar

Fault of Downgrade Mode
Internal CAN communication fault
External CAN communication fault
CAN communication relay fault.
UPS systems not connected by the CAN cable.
Resynchronizing
CAN communication resynchronization fault
Loss of communication with UPS 1
Loss of communication with UPS 2
Loss of communication with UPS 3
Loss of communication with UPS 4
Loss of communication with UPS XFault and Filtering of Customer Communication
The customer communication is disabled.Generic Fault on Equipment
The Emergency Power is OFF or "EPO".
UPS personalization fault
Personalization does not match the UPS.
The transfer to bypass disabled.Major Fault on Subassembly
Charger fault
Bypass static switch fault
PFC fault
Inverter fault
Power supply board fuse blown
Fan fault
TVSS faultInternal Switches and External Switches
"Q3BP" switch closed.
"Q5N" switch open
"Q4S" switch open
External "Q3BP" switch closed (MBC or SBC CB1) CB1)
External "Q5N" switch open (MBC or SBC CB2)
External "Q4S" switch open (MBC CB3)
Abnormal bypass operation
Abnormal external bypass operationFault or State of Installation
Installation overload
Non-redundant installation
Inverter starting
Not enough inverters for load connection
Not enough bypass static switches
Inverter ready for load connectionFault or State on Normal AC
Q1 switch open
Normal AC source downgraded
Normal AC input phase rotation fault
Normal AC fuse blown
Normal AC source static switch failure
Normal AC source outside tolerances
Normal AC backfeed (KA1) is open
Normal AC backfeed (KA1) faultFault or State on Bypass AC or Bypass Static Switch
Bypass source present
Bypass static switch overload
AC Bypass static switch thermal overload
Bypass input phase rotation fault
Bypass source outside tolerances
Bypass AC backfeed (KA2) is open
Bypass AC backfeed (KA2) faultFault or State for PFC
PFC overload
PFC thermal overload
StartingFault or State Standard Charger
Low battery warning
Low battery shutdown
Battery circuit breaker 1 open (QF1) (Battery Cabinet #1 or #3)
Battery circuit breaker 2 open (QF2) (Battery Cabinet #2 or #4)
End of theoretical battery service life
Battery temperature fault
Battery deep discharge
Battery room temperature fault
Battery test result not OK
Battery test in progress
Charger shutdown by PFC overloadFault or State Inverter
Inverter current limiting
Inverter overload
Inverter thermal overload
Inverter fuse blown
Inverter and bypass desynchronizedFault or State Load
Abnormal presence of output voltage
Load short circuitFault or State External Synchronization
External sync frequency outside tolerances
UPS on external synchronization