Section III
Operation
006-0007129 10/12/2018
Rev B
31 of 60
UPS-1500 3-Phase Guide
www.synqor.com
Audible alarm
For critical situations a pattern of audible tones will be repeated every 5 seconds. The table
below describes each audible alarm pattern. The audible alarms can be silenced by holding the
“ON/OFF” switch on the front panel in the “UP” position until a chirp is heard. A new alarm
condition will cause the audible alarm to be reactivated. Contact Factory for instructions on
how to permanently silence the alarm.
Number of Tones in Pattern
Indication
One
UPS is Drawing Power From the Battery Pack
Two
Load Power is greater than or approaching 100%
Rated Power
Three
Fault Appears on the AC Output
UPS Must be Turned “OFF” and Back “ON” to Reset Fault
Four
UPS is Drawing Power From the Battery Pack and the
Remaining Charge is <10%
Hot Swapping the Battery Pack
The battery pack can be removed or inserted into the UPS without disrupting the delivery of
power to the load, as long as a viable input power source is available. This feature is referred as
“hot swapping” in the industry. It can be used to replace a battery pack that needs servicing, or
to replace a drained battery pack with a, fully charged spare. Replacing a depleted battery pack
with a charged battery pack spare, might be required if back-up protection is necessary and the
current battery pack has had no chance to recharge.
Note: if no viable input power source is available for the UPS and the UPS is actively running of
the battery backup, the removal of the battery pack would cause the UPS’s to shut down and
stop supplying power to the load.