ZIV 7IRD-A - Inputs, Outputs and LED Targets; Inputs

Chapter 6. Description of Operation of Protection Subsystem
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
6-36
6.15 Inputs, Outputs and LED Targets
7IRD-A/J/M terminal units are provided with programmable inputs, outputs and LEDs enabling
user configuration of flexible logic designs. The following paragraphs contain a description of
the programming structure to configure protection inputs, outputs and signalling. Factory default
settings may be modified using the ZiverCom
®
software program.
6.15.1 Inputs
The terminal unit metering elements and logic functions use the Logic Input Signals listed in
Table 6-2 below. Any of these Logic Input Signals can be assigned to one of the eight Status
Contact Inputs of the terminal unit. The closure of a contact will thereby activate those Logic
Input Signals assigned to it. Several different Logic Input Signals can be assigned to one Status
Contact Input, but a given Logic Input Signal can only be assigned to one Status Contact Input.
Table 6-2: Inputs
Num Name Description Function
1 SSP_1
Trip Coil Circuit Supervision with 52 Closed
(power #1 supervision output) (*)
An alarm it’s obtained when
there is an abnormal situation
on the Trip Coil Circuit
Supervision. The supervision is
done in both breaker positions:
open and close. (*) CSP_1 and
CSP_3 supervise the trip and
close contacts too.
2 SSP_3
Close Coil Circuit Supervision with 52 Open
(power #3 supervision output) (*)
3 SBAIA Trip Coil Circuit Supervision With 52 Open
4 SBCIC Close Coil Circuit Supervision With 52 Closed
5 APE External protection actuation
It used the External protection
actuation signal for the breaker
failure function.
6 CED External trip control
If it’s activated after the trip, this
input blocks all the trips.
7 ATUT_F Bypass Time Phase Time Overcurrent
Changes a time delay to
Instantaneous.
8 ATUT_N Bypass Time Ground Time Overcurrent
9 BDI_F
Block Phase Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
Activating this unit before a trip
prevents the activation of the
unit. If the input is activated
after the trip, it recovers.
10 BDI_N
Block Ground Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
11 BDT_F Block Phase Time Overcurrent Trip
12 BDT_N Block Ground Time Overcurrent Trip
13 API_F
Phase Instantaneous (7IRD-A/M) / Instantaneous
1 (7IRD-J) Overcurrent Torque Control
Reset the timing functions in
the units and maintains them at
0 while active.
14 API_N
Ground Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Torque
Control
15 APT_F Phase Time Overcurrent Torque Control
16 APT_N Ground Time Overcurrent Torque Control