Galaxy 3000 Alarm: UPS thermal overload on battery

[Anonymous user]

While doing generator startup and ATS power transfer tests, we received a UPS thermal overload on battery alarm and UPS shut itself down completely. UPS recovered after manual restart. Can anyone tell under what circumstance this alarm is generated. What are the possible causes? Was the UPS doing its job? This alarm is different from inventer overload alarm, isn't it? Thanks.

09/26/2014 03:31:48  Appearance Battery charge current measurement fault                   Charger         Fault

09/26/2014 03:31:48  Appearance No load current on measurement chain                       Charger         Fault

09/26/2014 03:31:48  Appearance Standard or L.A. charger fault                             UPS general     Fault

09/26/2014 03:31:48  Disappearance Bypass AC source frequency outside tolerances           Bypass AC sourc Fault

09/26/2014 03:31:48  Disappearance Bypass AC source phase sequence check done              Bypass AC sourc Status

09/26/2014 03:31:48  Appearance Inverter stopped                                           Inverter        Status

09/26/2014 03:31:48  Appearance UPS on Bypass                                              Inverter        Status

09/26/2014 03:31:48  Appearance Forced UPS desynchronization                               UPS general     Status

09/26/2014 03:31:48  Appearance Rectifier OFF                                              Rectifier       Status

09/26/2014 03:31:48  Appearance Contactor KA1 open                                         UPS general     Status

09/26/2014 03:31:48  Appearance Bypass AC source outage                                    Bypass AC sourc Fault

09/26/2014 03:31:48  Appearance No UPS output voltage                                      Output          Fault

09/26/2014 03:31:48  Appearance Bypass AC source voltage outside tolerances                Bypass AC sourc Fault

09/26/2014 03:31:48  Appearance Normal AC source outage                                    Normal AC sourc Fault

09/26/2014 03:31:48  Appearance Normal AC source frequency outside tolerances              Normal AC sourc Fault

09/26/2014 03:31:48  Appearance Normal AC source voltage outside tolerances                Normal AC sourc Fault

09/26/2014 03:31:48  Appearance UPS thermal overload on battery                            Rectifier       Fault

09/26/2014 03:31:48  Disappearance Load protected                                          Output          Status

09/26/2014 03:31:48  Appearance Bypass AC source frequency outside tolerances              Bypass AC sourc Fault

09/26/2014 03:31:48  Appearance AC Bypass out of tolerances                                Bypass AC sourc Fault

09/26/2014 03:31:48  Appearance System global alarm                                        UPS general     Fault

09/26/2014 03:31:48  Appearance Downgraded operation mode                                  UPS general     Fault

09/26/2014 03:30:51  Disappearance Load on battery                                         UPS general     Status

09/26/2014 03:30:48  Disappearance Downgraded operation mode                               UPS general     Fault

09/26/2014 03:30:47  Appearance Bypass AC source phase sequence check done                 Bypass AC sourc Status

09/26/2014 03:30:47  Disappearance Forced UPS desynchronization                            UPS general     Status

09/26/2014 03:30:47  Disappearance Bypass AC source voltage outside tolerances             Bypass AC sourc Fault

09/26/2014 03:30:47  Disappearance Bypass AC source frequency outside tolerances           Bypass AC sourc Fault

09/26/2014 03:30:47  Disappearance AC Bypass out of tolerances                             Bypass AC sourc Fault

09/26/2014 03:30:46  Disappearance Bypass AC source phase sequence check done              Bypass AC sourc Status

09/26/2014 03:30:46  Appearance Forced UPS desynchronization                               UPS general     Status

09/26/2014 03:30:46  Disappearance Bypass AC source outage                                 Bypass AC sourc Fault

09/26/2014 03:30:46  Disappearance Bypass AC source voltage outside tolerances             Bypass AC sourc Fault

09/26/2014 03:30:46  Disappearance Normal AC source outage                                 Normal AC sourc Fault

09/26/2014 03:30:46  Disappearance Normal AC source frequency outside tolerances           Normal AC sourc Fault

09/26/2014 03:30:46  Appearance Bypass AC source frequency outside tolerances              Bypass AC sourc Fault

09/26/2014 03:30:46  Appearance AC Bypass out of tolerances                                Bypass AC sourc Fault

09/26/2014 03:30:46  Appearance Load on battery                                            UPS general     Status

[BillP]

Hello,

I asked our 3 phase support team. They told me:

Part of the answer lies in how old the batteries are. The UPS was on battery for almost 1 minute before it could not sustain the load on battery at this point the bypass was not available, so the load dropped. The only way to know for sure would be for a Field Service Engineer to be on site and repeat the test and get readings and download service logs. If the batteries are old, it may not be able to support the load for a short period and would need to be replaced.

[Anonymous user]

Our batteries are two years old. After UPS was restored, we opened/closed input breaker several times without any problem. The longest open/close switch was 5 minutes. We will do more tests on batteries to check their condition.

Can Galaxy 3000 UPS return to online from battery mode if the bypass source is not available?

[BillP]

Hi again,

Here is what I got:

If the UPS is in battery mode it can not go to online if the utility power (bypass) is not available.  Once utility power is restore, the UPS will leave battery power and be online.

[BillP]

Hello there,

First, check battery,

second, might have a defective power supply,

third, issues with ups management PCBs.

Now, for the first issue, if you're techsavvy, it is ok for you to do troubleshooting, but 2nd and 3rd, have a Schneider FSE come down to see you, it is pretty interesting and not user/customer friendly repair.

hope I could help.

cheers.

M

[BillP · Accepted solution]

ONE THING TO CHECK IS THE BATTERY STATIC SWITCH, THE DRIVER PCA MIGHT BE FAULTY.