21
Tripping Action
For optimal performance of “Tripping Action” 12
-24 AUX power is
recommended to be supplied to the controller.
Event
Result
Recommendation
Trip on Source 1
Controller will be advised of the trip
and will put controller into Total
Inhibition until trip is reset.
Source 2 generator will not be
advised to start unless power is lost
to controller.
No additional recommendation
required.
(12-24 AUX power to the controller
can ensure generator supply does not
start in the event of power lost after a
trip.)
Trip on Source 2
Controller will be advised of the trip
and will put controller into Total
Inhibition until trip is reset.
In the event of Source 1 return, the
controller will not return Supply to
Source 1 until the trip event has been
reset.
No additional recommendation
required
Power loss to OCRs and Controller
after a trip event.
Tripping Inhibition can reset, leaving
the controller in its previous mode.
(auto/manual)
12-24 AUX power is recommended to
be supplied to the controller.
Return of mains supply, when OCR
power is feed from generator, while
trip indication is active from an OCR
Can result in OCR trip indication
resetting.
The controller will still be Total
Inhibition and will prompt the
operation to confirm reset of the
tripping event.
No additional recommendation
required
Trip indication was less than 500ms
Can result in a missed trip on the
controller
AGR11 OCR
can not
be used in the
current ATYSCxxCIPACB offering as
its tripping indication last for 40ms.
AGR21 and 31 indicate for at least
500ms if no OCR power is supplied.
(OCR power will supplied to AGR21
and AGR31 via F1-N1 & F4-N2 from
the CIP (Control Interface Panel ) as
standard.)
