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Secondary CIOC 24v alarm

Hello all,

     I would like to disable the maint alarm that goes along with not wiring up the secondary power to the CIOC panel. We have our primary power wired so that it is redundant upstream so there is no need to wire anything to the secondary 24v ports. Due to nothing being wired to these ports all of my charms panels are giving a maint alarm. Is it possible to disable this specific alarm. I do not want to disable all maint alarms, only the alarm associated with the secondary 24v power. See attached screenshot.

• Maint alarm

jsmith

• 4 Oct 2016 4:08 PM
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2 Replies

• Gary Law

  

  • 6 Oct 2016 7:30 PM

  Having redundant power upstream is not as secure as providing the two feeds. The secondary power feed is distributed through all the components and diode ORed internally in each of them.
  This way a break or fault anywhere in the chain has less impact. If you are only providing redundant power to the primary power connector , you are NOT protected against other failure modes. There is no way to turn off this diagnostic. If you really don't want to see it I would suggest daisy chaining the power at the connectors (although 2 separate feeds would be better)

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• jsmith

  

  • 11 Oct 2016 8:32 PM

  In reply to Gary Law:

  I agree having 2 feeds is a better solution but this is the current setup the customer has. I guess a jumper from the primary terminals to the secondary terminals is the way to go in this situation.

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