LIEBERT® PSA itON-SOHO 650/850/1000VA, 230V
User Manual
2
Liebert® PSA itON-SOHO User Manual (R1/071621)
UPS CONTROLS AND CONNECTIONS
UPS STATUS, ALARM CONDITIONS AND ALERTS
Condition
LED
Color
Solid/Flashing
Audible Alarm
Normal Mode
LED 1
Green
Solid
(none)
Battery Mode
LED 2
Yellow
Flashes
Every 10 seconds
Battery Low
LED 2 / LED 3
Yellow/Red
Flashes/Solid
Every 1 second
Overload at Normal Mode
LED 1
Green
Solid
Every 0.5 second
Overload at Battery Mode
LED 2 / LED 3
Yellow/Red
Flashes/Solid
UPS shuts down immediately
Fault
LED 3
Red
Solid
Continuous until UPS shuts down
TROUBLESHOOTING
If the UPS malfunctions during operation, check the following chart for proper adjustment. For further assistance, pleas contact your
local Vertiv representative
Problem
Possible Causes
Solutions
Utility is normal, but LED 1 is not illuminated
• Battery capacity may be low.
• The UPS battery reached end of life.
• The UPS may not be turned on.
• Recharge the UPS at least 6 hours
• Replace the battery with the same type of battery.
• Press the ON/OFF button to turn on the UPS.
Alarm buzzer beeps continuously although
utility power is normal
• The UPS may be overloaded
• Disconnect some equipment from the UPS
UPS does not provide expected backup time
• The UPS may be overloaded.
• Battery voltage may be low.
• The UPS battery reached end of life.
• Disconnect some equipment from the UPS
• Recharge the UPS at least 6 hours
• Replace the battery with the same type of battery.
Utility is normal, but LED 1 flashes
• The power cord may not be connected properly
• Connect the power cord securely into a wall outlet
