FAQ - Power DBX 2000 & DIB 2000 Hydrogen UPS system

 

Date 07-08-2009
Title LED lights on the FC module
Question Isn’t there an LED or alarm that is lit when the FC is running? I see that LED #1 is flashing red when the self test is running, but I don’t see what the indication is when the FC is running in power outage mode? Or is that only available on the CanBUS?

When the FC is running, LED 3 & 4 are green and LED 2 is showing the H2 situation (yellow means low on hydrogen and ‘light off’ is OK). This is different from standby state. In standby state LED 1 would be green also.


Date 07-08-2009
Title Self test record
Question Is there a notification or record that a self test was successfully run and when?

This data is saved in the log. The log can be read, either via TCI/IP, CANbus or it can be read on the internal memory which is stored on a removable SD-card.


Date 07-08-2009
Title Self test routine
Question What happens if there is a power outage during a self test?

The system would go into backup mode, exactly in the same way as if the system was in standby mode when the outage happend.


Date 07-08-2009
Title Self test routine
Question Are the 30 days fixed at the factory?

It is set from the day it passes FAT or when a technician during commissioning runs a self test.


Date 07-08-2009
Title Self test routine
Question What triggers the self test?

Either a 30 days period since the last fuel cell startup or pushing the self test button.


Date 07-08-2009
Title Self test routine
Question Does pressing the self test button on the front of the module initiate the same self test that the unit would do on its own every 30 days?

Yes, it is the same, but at the same time it is the button that would allow a technician to get the system out of one of the ‘safe modes’. The safe modes are controlled shutdowns of the system in case of malfunction.


Date 07-08-2009
Title Self test routine
Question Is the 30 day counter reset if there was a real power outage or a manually initiated self test?

Yes, if the outage has lasted more than 1 second.


Date 07-08-2009
Title Self test routine when using 2 systems in parallel
Question What happens when you have 2 or more modules in parallel? Do they all self test at once? Or would they randomly self test individually?

They would self test after 30 days from an outage, so they could test at the same time. This is depending on the type of outage though. Otherwise they would test randomly depending on the time of commissioning.


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