Operating Manual
Arc fa
ult protection ZŁ-4A; (07.2019)
47
Messages displayed on the front panel of a bay unit:
tripping, JP has detected the arc fault in zone 1,
tripping, JP has detected the arc fault in zone 2,
tripping, JP has detected the arc fault in zone 3,
JP has sent information on detection of an arc fault (in any zone),
tripping (JP has received information on detection of a fault in zone 1 and JP has gen-
erated a tripping signal after the arc fault detection),
there has been a measurement voltage drop or a fall detected (a respective message
is displayed even in case of lack of communication with
JC, JPs change their mode into “sin-
gle criterion” mode).
Deleting “TRIPPING”
is realized by pressing
button on the front panel of a bay unit for
longer than 3s. The tripping of a bay unit’s executive relay is deleted. Deletion of activation or
tripping of all elements of the protection system is realized by pressing
button on the front
panel of a central unit for longer than 3s.
Information about the protection system tripping is signalized on the front panel and also by
closing the contact of the signaling relay (contacts F5, F6 are closed) of JC (the default con-
figuration). Detailed information is available on the page 5) TRIPPING in control panel.
ESC
KAS
ESC
KAS
Summary of Contents for ZL-4A
Page 24: ...Operating Manual 24 Arc fault protection ZŁ 4A 07 2019 Fig 5 ZŁ 4A JC dimensions ...
Page 25: ...Operating Manual Arc fault protection ZŁ 4A 07 2019 25 Fig 6 ZŁ 4A JP dimensions ...
Page 26: ...Operating Manual 26 Arc fault protection ZŁ 4A 07 2019 Fig 7 ZŁ 4A JW dimensions ...
Page 61: ...Operating Manual Arc fault protection ZŁ 4A 07 2019 61 Fig 36 Page 2 STATUS using ...