Delta UPS alarm: inhibit UPS output
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The company has two Delta UPS units operating in parallel, but only Unit 2 is in active mode; its output is disconnected with no load connected, meaning only UPS Unit 1 is used to supply power to the loads. A few days ago, an alarm message appeared stating “inhibit UPS output”; Baidu Translate translates this as “suppress UPS output”, which caused the entire DCS to lose power. It resumed operating automatically after 17 seconds; I’m not sure what caused this If there is a short circuit in the load, does the UPS switch directly to bypass mode? Is there any expert in this field who can share their insights? It’s unclear now whether there is a problem with the load or with the module of the UPS’s monitoring board. Experienced sea travelers, please share your insights and help clear up these doubts
The translation should be: The UPS prevents power output; this is likely due to an overload. If the load is short-circuited, the UPS will shut down immediately without switching to bypass mode – we have encountered this situation before.