FUNCTION CHARACTERISTICS
42
NA30 - Manual - 04 - 2022
LED indicators
Eight LEDs are available.
• One green LED “ON”: if turned on it means that the device is properly working, if flashing the inter-
nal self-test function has detected an anomaly.
• One yellow LED “START” tagged for START of one or more protective elements.
[1]
• One red LED “TRIP” tagged for TRIP of one or more protective elements.
[1]
• Five red LEDs “1...5” for highlight the activation of one or more user defined function.
Each output relay may be programmed with following operating mode:
• No-latched: the LED reset at the end of the trip condition.
• Latched: the LED doesn’t reset at the end of the trip condition; it stays ON until a manual reset
command is issued (RESET key, ThyVisor or communication command).
Any change to the settings can be affected at any time, also with the relay on duty, separately for
each LED
.
Free allocation of each LED may be set according to the matrix structure shown in the following
page.
[2]
Note 1 The START and the TRIP LED are user assignable to any function; other than starting and tripping information can be assigned to them too, just
the same for L1...L5
Note 2 All LEDs are unassigned in the default setting.
Led
CB Open
CB Close