MEASURES, LOGIC STATES AND COUNTERS
90
NA10 - Manual - 04 - 2022
• MID16-2 module Boot OK/NOT OK
• MID16-2 module Run-time OK/NOT OK
The diagnostic alarms can be allocated to an output relay; the Self-test relay parameter (K1...K6)
is available inside the Set \ Self-test Relay submenu.
When a higher level anomaly is recognized all protective functions are disabled and the output relays
switch in no-trip state:
• rest state if the output relay are set in De-energized mode (contacts as shown in the diagrams)
• active state if the output relay are set in Energized mode (opposite to what is shown in the dia-
grams).
The connections of the trip and diagnostic relays must be performed according to the application:
when the output relay must be normally energized and the circuit breaker must be open in case of
failure of the protection system, the self-test function must be enabled and assigned to the normally
energized relay selected for tripping.
Pilot wire diagnostic
Detailed diagnostic information about the pilot wire are available.
(Read \ Pilot wire diagnostic).
• BLIN1 pilot wire breaking diagnostic state ON/OFF
• Pilot wire BLIN1 shorted ON/OFF
Selective Block - BLOCK2
The input and output state concerning the selective block are available (Read \ Selective block-
BLOCK2).
Block2 input
• Phase protections input selective block state BLK2IN-Iph ON/OFF
• Ground protections input selective block state BLK2IN-IE ON/OFF
• tB-Iph/IE Elapsed state tB timeout ON/OFF
Block2 output
• Starting state of phase protections enabled
for external selective block on output ST-Iph-BLK2 ON/OFF
• Starting state of ground protections enabled
for external selective block on output ST-IE-BLK2 ON/OFF
• Phase protections output
selective block state BLK2-OUT-Iph ON/OFF
• Ground protections
output selective block state BLK2-OUT-IE ON/OFF
• Phase and ground protections
output selective block state BLK2-OUT-Iph/IE ON/OFF
Fault recording - SFR
Recording is triggered by one or more causes (up to 8 simultaneous):
• Activation (OFF-ON transition) of any relay programmed for trip of protection or control element
• External trigger (binary input programmed as Fault trigger)
Twenty events are recorded into a circular FIFO (First In, First Out) buffer.
[1][2]
Following information are stored in every record:
• Fault counter
[3]
• Date and time
• Fault cause (element trip)
• Phase currents I
L1r
, I
L2r
, I
L3r
• Residual current I
Er
• Inputs
• Outputs
• Fault cause info (eg. faulted phase)
Event recording - SER
Recording is triggered by one or more causes:
• Start and/or trip of any enabled protection or control element
• Binary input activation (OFF-ON or ON-OFF transition)
• Power-on or power-down (Auxiliary power supply)
• Setting change.
Three hundred events are recorded into a circular FIFO (First In, First Out) buffer.
[2][4]
Following information are stored in every record:
• Event counter
[5]
• Date and time
• Event cause (binary input/element trip/setting change)
Note 1 Fault 0 is the newest fault, while the Fault 19 is the oldest fault
Note 2 Data are stored in non volatile memory; they are held in spite of power down
Note 3 Counter is updated at any new record; it may be cleared by means ThyVisor
Note 4 Event 0 is the newest event, while the Event 299 is the oldest event
Note 5 Counter is updated at any new record; it may be cleared by means ThyVisor
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