SRT6KXLI Int. comn. fault

[BillP]

This question was originally posted by Hosein on APC forums on 7/23/2015

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HELLO

I have an APC SRT6KXLI with 3 SRT192BP . they are working online with 230v output voltage .

but it has a fault with this message on it's LCD :

int. comn. fault .

internal communication fault 

how can i fix it ? i upgrade my ups but didn's solved !! should i upgrade SNMP card ? 

before this fault i coud access to my snmp card on network but after upgrading the snmp card i couldn't access to my snmp.

[BillP]

This reply was originally posted by Angela on APC forums on 7/23/2015

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Can you share the details of what firmware your UPS is at after you upgraded it? Does this same error occur when you have the battery packs disconnected (just to see)?

[BillP]

This reply was originally posted by Hosein on APC forums on 7/25/2015

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Dear angela

i didn't test the ups without battery pack but i share some detials of the ups below . this information is before updating the snmp (for more information after updating snmp i couldn't access the snmp )

thank you very very much .

[BillP]

This reply was originally posted by Angela on APC forums on 7/27/2015

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Is this the same unit/question as you already posted here again that I just replied to...? 

http://forums.apc.com/spaces/5/smart-ups-symmetra-lx-rm/forums/general/11114/srt6kxli-int-comn-fault 

[BillP]

This reply was originally posted by Hosein on APC forums on 8/16/2015

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Hi angela . i can't access to web interface SNMP . i rest ,reboot,reset factory and.... my SNMP .But i have the application error yet . how can i inter to web interface ?

[BillP · Accepted solution]

This reply was originally posted by Angela on APC forums on 8/17/2015

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Do you mean "Error: Application unable to load?" If so, this means the firmware has an issue. You'll want to reload the Network Management Card firmware.

http://www.schneider-electric.us/support/index?page=content&country=US〈=en&locale=en_US&id=FA156047 - Instructions here.

Then, the file you need is part number SFSUMX621, available from http://www.apc.com/tools/download/index.cfm when you select Filter by Software/Firmware and choose Firmware Upgrades - UPS Network Management Card.