Vertiv Alber UXIMe, Руководство по установке

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590-2172-501A/SL-29241/4200-136
19-1
Hardware Alarm Connection
19. Hardware Alarm Connection
The Hardware Alarm Form C alarm contact provides notification if a hardware failure has been detected
within the UXIMe. This contact has three connections:
•
NC (normally closed)
•
NO (normally open)
•
COM (common)
The normally open (NO) contact becomes active after successful bootup of the UXIMe and stays in this
state during normal operation. The relay changes state and the normally closed (NC) contact becomes
active during any of the following fault conditions:
1. Power fault
2. Application code fault accompanied by an unsuccessful recovery
3. MLM (load module) failed
Connection can be made directly to the facility's alarm reporting system. If multiple units are used, then
these contacts can be connected in series or parallel, depending on the requirements for the facility's
wiring of NC (normally closed) or NO (normally open).
Figure 17 - Hardware Alarm Contacts