nvent 910 Series Installation, Operating And Maintenance Instructions page 50

Procedure: The IN USE hours accumulator can be reset to zero using the Operator Console or
a communicating device.
IMPORTANT: The IN USE hours accumulator value will roll over to zero when the upper limit of
the accumulator has been exceeded. This limit is 999,999,999 hours.
6.3.5 TIME SINCE LAST RESET
Purpose: This feature indicates the total hours in use of the controller since the last reset.
It may be useful to log the amount of time a particular controller has been in operation since
the last time the controller's power was cycled for trouble-shooting purposes.
Procedure: The TIME SINCE LAST RESET hours accumulator can only be reset by cycling the
controller's power.
Note: The TIME SINCE LAST RESET will roll over to zero when the upper limit of 65,535 hours
has been exceeded.
6.3.6 PEAK LOAD CURRENT
IMPORTANT: The PEAK LOAD CURRENT is not displayed on the Operator Console.
Purpose: This feature indicates the highest instantaneous load current measured since the last
time the PEAK LOAD CURRENT was reset. This value is written to the controller's nonvolatile
memory once every 24 hours or whenever any maintenance data is reset by the user.
Procedure: The PEAK LOAD CURRENT may only be reset to zero using a communicating device.
6.3.7 PEAK GROUND FAULT CURRENT
IMPORTANT: The PEAK GROUND FAULT CURRENT is not displayed on the Operator Console.
Purpose: This feature indicates the highest instantaneous ground fault current measured since
the last time the PEAK GROUND FAULT CURRENT was reset. This current value is written to
the controller's non-volatile memory once every 24 hours or whenever any maintenance data is
reset by the user.
Procedure: The PEAK LOAD CURRENT may only be reset to zero using a communicating
device.
6.3.8 EXTERNAL INPUT STATUS
IMPORTANT: The EXTERNAL INPUT STATUS is not displayed on the optional Operator
Console.
Purpose: This feature indicates the actual status of the external input regardless of the
controller's configuration. This may be useful if the user wishes to use the controller's external
input to monitor the status of an external dry contact and pass this on to another device.
Procedure: The EXTERNAL INPUT STATUS may only be viewed using a communicating device.
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