Ice AP901, Инструкция по эксплуатации

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Instruction manual – AP901 Arc Protection Unit 25 (39
)
A1017B
7.1 O
UTPUTS
7.1.1 T
RIP RELAYS
T1
AND
T2
The AP901 unit has integrated trip relays T1 and T2 for tripping of the circuit-breakers. T1 and
T2 relays are normally open type (NO).
7.1.2 T
RIP RELAYS
T3
AND
T4
T3 relay output may act either as an electronic lock-out relay or as a trip relay. This option must
be specified when ordering. When T3 is factory configured as electronic lock-out relay it is
normally closed type (NC) and will hold its position until manual reset command or until
auxiliary power supply is lost. When re-applying the auxiliary power supply the electronic lock-
out relay will return to the contact condition prior loosing the auxiliary power. This normally
closed relay output can be used for tripping contactor controlled devices.
Alternately T3 can be ordered as normally open (NO) type relay from the factory.
T3 relay follows the operation of T1 and activates whenever T1 is activated.
Trip relay T4 is a common trip relay that operates anytime T1 or T2 relay operates and can be
used either for tripping one more disconnecting device or for trip alarm to local or remote
monitoring and alarming system.
7.1.3 B
INARY OUTPUT
BO1
One binary output is available (+24V dc). Binary output function can be configured using
dipswitches (see chapter 3.5).
Note: the binary output is polarity sensitive (see chapter 8).