JADAC Power Support
3300 UPS Manual
Page 21 of 24
7.0
APPENDIX B
ALARM EXPLANATION
ALARM NAME
ALARM MEANING
Inverter Off
The inverter is off
Inverter Voltage High
The RMS inverter voltage is over the allowable limit
Link Soft Starting
The DC link voltage is being pre charged
Rectifier Off
The boost converter is off
Inverter Output Low
The RMS inverter voltage is under the allowable limit
DC Link Voltage Low
The DC link voltage is under the allowable limit
Inverter Fuse Blown
The inverter fuse has blown
Rectifier Mains Fail
The rectifier supply is under the allowable limit
DC Link Voltage High
The DC link voltage is over the allowable limit
Rectifier Fuse Blown
The boost converter’s fuse has blown
Overload
The UPS is being overloaded
Inverter DC Offset High
The DC component of inverter output is over allowable limit
Supervision Stop
The inverter bridge has been stopped by supervisory circuits
Over Temperature / Fan Failure
The UPS temperature is over allowable limit
* FACTORY SETUP MODE *
The UPS is in a drive signal checking mode (used at factory)
Rectifier High / Low
The rectifier output voltage is over/under allowable limit
Battery Volts High
The battery voltage is over allowable limit
Battery Fault Detected
The charger has detected a battery impedance fault
Charger Fail
The charger is not working
Battery Discharging
The battery voltage has dropped below 2V per cell
* Battery TEST MODE *
Battery test is in progress
Charger Feedback Fault
The charger is reporting a feedback fault
Battery Warning
The battery is nearly depleted
Charger Supply Out Limits
The charger’s supply is over/under allowable limit
Low Battery Shutdown
The battery voltage is under allowable limit
Battery Boost Charge Active
The charger is in boost mode (vented cells only)
Charger Comms Error
Communications with the charger has been lost
Load on Static Bypass
The load is being supplied by the reserve source
Phase Rotation Fault
The reserve source’s phase rotation is incorrect
Reserve Voltage High
The reserve source’s voltage is over allowable limit
Retransfer Lockout
Attempts to retransfer the load failed - resulting in lockout
Loss of Phase Lock
The inverter is unable to synchronize to it’s reserve source
Reserve Voltage Low
The reserve source’s voltage is under the allowable limit
Maintenance Bypass Closed
The maintenance detour switch has been closed
Supply Freq Out Limits
The reserve source’s frequency is over/under allowable limit
Output Voltage High
The static switch output voltage is over allowable limit
E.P.O. Activated
The external EPO has been triggered
Charger Needs Calibrating
The charger failed to receive valid calibration constants
Output Voltage Low
The static switch output voltage is under allowable limit
PSU Sleep Mode Warning
The PSU is about to go into sleep mode
