NETYS RT 3kva - wont turn on

[KrisEE]

Hi all,

I have a NETYS RT 3kva UPS system that was working fine in our comms room.
We removed it and had it working fine on the bench. We turned it off and came back to it a few days later to do some battery drain testing and it won't turn back on.

We have followed the trouble shooting suggestions in the user manual (image attached) and got to the point of contact support. If someone has any ideas of what to check next or a number to call customer support in Australia it would be much appreciated.

Thanks and have a good day

[Teken]

What is the specification of the battery pack / charging system? What is the current battery voltage of the cartridge? 

What happens when you apply AC Mains to the unit and press the power button? Any sounds / lights coming from the unit?

Please offer a direct link to the user manual for this specific unit.  

NOTE: The vast majority of consumer grade UPS systems require that the battery voltage be at a specific level to allow the system to activate / turn on.

Enterprise UPS systems that have (hot swap) battery cartridges do not have this requirement. So they will allow the system to be turned on without a battery cartridge in place.

If the battery cartridge is flat (depleted) either replace or attempt to recharge the same outside of the unit. The cells will either be 6 / 12 VDC cells.

So you’ll want to disconnect the entire pack and charge each cell individually or in parallel with a battery charger.

You can also (Test) to see if the unit is the type which requires a specific battery voltage to turn on. By using a sufficiently large and (voltage rated) capacitor.

Lastly, it’s unclear to me if the unit stopped functioning after the battery drain test?!? 

Obviously if the unit is none functioning after the battery drain test - it’s the battery. As outlined up above which needs to be at a specific voltage level.

If the unit is dead before you even attempted the battery drain test. Again, confirm the battery voltage and follow the suggestion outlined above.

Lastly, verify there isn’t a blown fuse in the battery cartridge. Failing that I’d open up the unit to see and smell if there is any obvious internal faults from a blown fuse etc.

[KrisEE]

Hi Teken,
Thanks for taking the time to get back to me. My answers are in bold blue. I will open it up and try and charge the batteries individually as suggested.

What is the specification of the battery pack / charging system? What is the current battery voltage of the cartridge? 
I am just using the main unit at this stage, I have other batteries but they are not connected yet. It was working on it's own without separate batteries.

What happens when you apply AC Mains to the unit and press the power button? Any sounds / lights coming from the unit?
Nothing at all happens after pressing the power button (short or long press)

Please offer a direct link to the user manual for this specific unit.
https://drive.google.com/file/d/1o0KaDyaWIirhwRBiawxabAhK8ZUF665l/view?usp=sharing

NOTE: The vast majority of consumer grade UPS systems require that the battery voltage be at a specific level to allow the system to activate / turn on.
Ok interesting, do you know what voltage. wheres in the best spot to test this voltage?
I do have three banks and a charger so I may try and plug that in foe a few hours and see if that boosts the voltage.
Links to the battery charger and batteries
https://drive.google.com/file/d/1m5PiGCpLuIXTFFwjdLifw-CEtnhEOcYI/view?usp=sharing
https://drive.google.com/file/d/1r3NjC-RZJYlE9F1MGTu0T0LfwpdGTnlh/view?usp=sharing

Enterprise UPS systems that have (hot swap) battery cartridges do not have this requirement. So they will allow the system to be turned on without a battery cartridge in place.
Mine did this initially when I didn't have all of the banks plugged in. I think the main unit has a few batteries in it as well though.

If the battery cartridge is flat (depleted) either replace or attempt to recharge the same outside of the unit. The cells will either be 6 / 12 VDC cells.
Ok

So you’ll want to disconnect the entire pack and charge each cell individually or in parallel with a battery charger.
Understood

You can also (Test) to see if the unit is the type which requires a specific battery voltage to turn on. By using a sufficiently large and (voltage rated) capacitor.
Not sure what you mean by this 

Lastly, it’s unclear to me if the unit stopped functioning after the battery drain test?!? 
No, I simply had it on the bench at work and it turned on (both without mains connected and without). I came back to it a week or so later (turned off in that period) to connect all the batteries and do a test but it would not turn on connected and disconnected to the mains.

Obviously if the unit is none functioning after the battery drain test - it’s the battery. As outlined up above which needs to be at a specific voltage level.
No didn't get to do the test

If the unit is dead before you even attempted the battery drain test. Again, confirm the battery voltage and follow the suggestion outlined above.
Thanks will do, I'll have to take it apart and remove the batteries

Lastly, verify there isn’t a blown fuse in the battery cartridge. Failing that I’d open up the unit to see and smell if there is any obvious internal faults from a blown fuse etc.
There are no fuses on the main unit, only a resettable overload device. I did take the lid off and confirm there was 240v on either side of that device.