User manual ZUP-230V
Nr dok. 0697.00.95-02.3
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interrupted and the countdown of the T2 time begins.
The time T3 results from the operation of the AC-4 output and it can range from 5 up to 65s.
Warning. Separate use of T2 and T3 times is included in the AC-4 output description.
Outputs AC-2A and AC-2B
The AC-2 output is intended for devices whose state is switched by a fire alarm signal, e.g.:
-
self-locking, two-way actuator of shutting off damper of fire ventilation;
-
drive of the fire zone separating gate;
or that can be activated during the fire alarm, e.g.:
-
aeration or smoke exhaust fan switched on during a fire
Fig.4.
Voltage timings for AC-2 output.
A fire alarm causes voltage loss at the AC-2A output (if present, i.e. when the mains present) and
the appearance of voltage at the AC-2B output (regardless of whether the mains is present). The
voltage on this output is maintained for a certain period of time T2+T3 (see the description of the times
of the AC-1 output), so that the actuator can change its state.
The response to a fire alarm always takes place with a delay of ~2s required for its correct
recognition. If a fire alarm occurred with the inverter turned off, it will be restarted with an additional
delay of about 10s.
Return to the safe position, i.e. the correct position before the fire alarm occurs (voltage present at
the AC-2A output and no voltage at the AC2-B output), is possible when the mains power present and
when is no fire alarm.
Output AC-3
The AC-3 output is intended for devices whose condition is backed-up by means of the external
power source and, which after a fire alarm appears, independently switch in a safe position by
switching it off, e.g.:
-
spring actuator of fire damper;
-
blind of ceiling smoke tank.
OUTPUT AC-2A
OUTPUT AC-2B
3
T2
+
T
T2+T3
~2s
~10s
~2s
MAINS POWER
FIRE ALARM
Operating from
MAINS
Operating from
BATTERY