Table. 5.4.12. - 89. Output signals of the arc protection function
Outputs
Activation condition
Channel1 Light In
Channel2 Light In
Channel3 Light In
Channel4 Light In
Arc protection card sensor channel detects light.
Channel1 Pressure In
Channel2 Pressure In
Channel3 Pressure In
Channel4 Pressure In
Arc protection card sensor channel detects light.
ARC Binary input signal
Arc protection card binary input is energized.
I/I0 Arc> Ph.Curr.START
I/I0 Arc>
Res.Curr.START
Measured phase or residual current is over the set limit.
I/I0 Arc>
Ph.Curr.BLOCKED
I/I0 Arc>
Res.Curr.BLOCKED
Phase or residual current measurement is blocked by an input.
I/I0 Arc> Zone1 TRIP
I/I0 Arc> Zone2 TRIP
I/I0 Arc> Zone3 TRIP
I/I0 Arc> Zone4 TRIP
All required conditions for tripping the zone are met (light or light and current).
I/I0 Arc> Zone1
BLOCKED
I/I0 Arc> Zone2
BLOCKED
I/I0 Arc> Zone3
BLOCKED
I/I0 Arc> Zone4
BLOCKED
All required conditions for tripping the zone are met (light or light and current) but tripping is
blocked by an input.
I/I0 Arc> S1 Sensor
fault
I/I0 Arc> S2 Sensor
fault
I/I0 Arc> S3 Sensor
fault
I/I0 Arc> S4 Sensor
fault
Detected quantity of sensors in the channel do not match with user settings.
I/I0 Arc> IO unit fault
If the amount of connected AQ-101 units mismatch with the user setting I/Io Arc> Number of
connected AQ-101 units.
The operational logic consists of input processing, threshold comparator, two block signal check and
output processing.
Inputs for the function are the operating mode selections, setting parameters and measured and pre-
processed current magnitudes and binary input signals. Function outputs TRIP, BLOCKED, light
sensing etc. signals can be used for direct IO controlling and for user logic programming. The function
registers its operation into 12 last time-stamped registers and also generates general time stamped
ON/OFF events to the common event buffer from each of the three output signals. Time stamp
resolution is 1ms. Function provides cumulative counters for TRIP and BLOCKED events for each
Zone.
Example scheme setting
The following examples enables better understanding of setting up the arc protection function. In the
following cases AQ-101 models are used to extend the protection of Zone2 and to protect each
outgoing feeder (Zone3).
AQ-T216
Instruction manual
Version: 2.00
165
© Arcteq Relays Ltd