G
AMATRONIC
E
LECTRONIC
I
NDUSTRIES
L
TD
.
98
CENTRIC 3x480, User Guide, rel. 1.7
L
INE
#
A
LARM MESSAGE
OR STATE OF
UPS
E
E
XPLANATION
D
EFAULT
S EVERITY
R
R
ECOMMENDED ACTION
,
IF ANY
18. End of battery backup. Battery
is discharged to shutdown
limit.
E The system was running in battery mode and the battery is now exhausted.
Informational
R Verify that the ac input circuit breaker is “ON”. Wait for mains power to return.
If auto-restart is enabled (“Setup > System > Shutdown and Autorestart”) the Centric will start up automatically when the power returns. In
any case, battery charging begins automatically upon return of the ac input power.
19. High load level.
E The UPS is at 90% load level.
Warning
R Be prepared to disconnect nonessential loads if the load level continues to increase.
20. Load is now running on
battery.
E The UPS is in battery mode.
Critical
R Verify ac input CB is on; check input voltage value; wait for mains power to return.
21. Load is now running on
bypass.
E The UPS is operating in bypass mode.
Critical
R Perform the instructions in section
”Troubleshooting “Bypass mode”.
22. Low battery voltage.
E The battery voltage is low. UPS shutdown due to battery discharge is imminent.
Critical
R Shut down the critical load(s).
23. More than one module is
sending an alarm or warning
E Self explanatory.
Critical
R Perform the instructions in section
10.4 “Troubleshooting “UPS modules”.
24. No ac output to load.
E The UPS is not providing any output power.
Critical
R Perform the instructions in section
10.5 “Troubleshooting “No output”.
25. No output current at one or
more modules due to fault.
E One or more modules have no ac output.
Critical
R To determine the problematic module(s), “Status > Modules”. In the diagram, tap the bottom module in the module stack, then select
“Output” in the grid at the bottom of the screen. Tap each module in turn from bottom to top and look at the output data to determine which
module(s) is producing no output. Replace the bad modules.
26. Outputs of all UPS modules
are disconnected, dc voltage
is normal.
E Possible master-slave problem at PC819 board.
- - -
R Replace PC819 in STSW slot.
27. Overload current.
E The load devices are demanding more power than the UPS can supply.
Critical
R The UPS can tolerate an overload for a short period of time, after which the load is automatically transferred to bypass. When the overload
is eliminated the load is automatically returned to the inverter. If overloading is a persistent problem, the load on the UPS needs to be
reduced. Alternatively, consider adding UPS modules to the system to increase its output power.
28. Short sync fault
E A short-lived synchronization fault occurred between the inverter and bypass. The fault is logged to the log file.
Warning
