SURT8000XLI RBC LED Fault

[Musta]

Hi

I have replaced the internal Batteries for SURT8000XLI UPS with Genuine RBC140, at power outage the LED indicator goes to 25% immediately while the UPS sustain the load for 12 min so i need a solution noting that i performed three complete charge / discharge cycles and performed the UPS self test as well

[KarimEissa · Accepted solution]

Hello,

We recommends to follow the below procedures:

- brain dead the unit after disconnecting the loads to reset the control logic

-Then start up the UPS again and insert the loads (should be min 30 %)

-Ensure you changed the battery replacement date from UPS NMC 

-Then perform start up test, once passed

-Leave the batteries to charge for 48 hours

-Then perform runtime calibration test with same 30 % load from the NMC 

-Once passed leave the batteries to charge for 24 hours

-Then perform discharge test by disconnecting the UPS input mains with the same 30% load

-Leave the batteries to discharge until the connected loads shutdown  even if the battery LED lit up this will allow the controller to update battery runtime constant

-then return back mains to the UPS and let the UPS charge the batteries for 24 hours while maintain the desired load level 30 %

we usually instruct this to our service centers to perform the procedures  using load bank or dummy load 

Regards,

Karim