Reference: A938
Index: B
Page 25
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Instruction Manual – NPS914 Alarm and Indication IED
The "Digital outputs settings" subsection lets you select the polarity for each output; they can be either
Normally Open (NO) or Normally Closed (NC). The default polarity is Normally Open. The operational delay
of an output contact is approximately 5 ms. You can view the digital output statuses in the corresponding
subsection ("Digital output status"). The "Digital output descriptions" allows you to configure the description
text of each output. All name changes affect the matrices as well as input
–output selection lists.
NOTE!
A NC signal goes to the default position (NO) if the relay loses the auxiliary voltage or if the system
is fully reset. However, an NC signal does not open during voltage or during System full reset. A NC
output signal does not open during a Communication or Protection reset.
Figure. 3.4. - 24. LED settings subsection.
The "LED settings" subsection allows you to modify the individual label text attached to an LED ("LED
description settings"); that label is visible in the LED quick displays and the matrices. You can also modify the
color of the LED ("LED color settings") between green and yellow; by default all LEDs are green.
