MGE UPS Systems Switched PDU User Manual

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4. Advanced Operations 
Outlet Status traps 
Status Error Description 
On 
 
Outlet is on 
Off 
 
Outlet is off 
OnWait 
 
Outlet Status in transition 
OffWait 
 
Outlet Status in transition 
OnError 
Outlet should be off but current is sensed at the outlet 
OffError 
Outlet should be on but no current is sensed at the outlet 
NoComm 
Communication to the outlet has been lost 
OffFuse 
Outlet should be on but a blown fuse has been detected 
 
Environmental Monitor Status traps 
Status Error Description 
Normal 
 
The Environmental Monitor is working correctly 
NoComm 
Communication to the Environmental Monitor has been lost 
Temperature/Humidity Sensor Status traps 
Status Error Description 
Found 
 
The sensor has been detected 
NotFound 
 
No sensor has been detected 
 
Lost 
Sensor initially detected but communication to the sensor has been lost 
NoComm 
Communication to the sensor has been lost 
 
NOTE:  Traps are generated according to a hierarchical architecture; i.e. if a Tower Status enters a trap 
condition, only the Tower Status trap is generated.  Infeed and Outlet Status traps are suppressed until the 
Tower Status returns to Normal. 
Change trap 
The Change trap is generated for all outlet status changes between any on/off conditions.  Change traps 
include the outlet status, Location of the Switched PDU, and identifier and name of the affected outlet.  For 
descriptions of the outlet status types, please refer to the prior table. 
Load Trap 
The Load trap is generated whenever the total input load on an infeed exceeds a preset threshold.  Load traps 
include the reported input load, load status, Location of the Switched PDU, and identifier and name of the 
affected infeed. 
Any error state generates a Load trap and triggers the trap timer.  A new trap is generated at the end of every 
timer period until the Load returns to a non-error status. 
Load traps 
Status Error Description 
Normal 
 
Infeed is on and within preset thresholds 
NotOn 
 
Infeed is off 
Reading 
 
Non-error state – Load status currently being read 
LoadHigh 
Infeed current load exceeds preset threshold 
OverLoad 
Infeed current load exceeds the measurable range for the infeed 
ReadError 
Unable to read Load status 
NoComm 
x  
Communication to the infeed has been lost 
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