8/21KK-642.042 Rev.No:17 19.01.24 ML-221XX User Manual
Lamp
Test
Silence Alarm/
Alarm
Silence
Buzzer
Reset
Button
Control
Enable
Disable
Disable
6.2 AUXILIARY POWER SUPPLY OUTPUT
The panel is equipped with an auxiliary 0.5А 24V DC power supply
output. The output is used for energizing external devices such as
telephone dialer or gas detector. Connecting an external device with
improper voltage requirement or overloading the output will cause device
malfunction or output fault. The output provides continuous power
supply. In case of mains power supply failure, the batteries provide power supply to the output. Cable connections should be done with 0.5A resistant
cables. A 1x2x0,8+0,8JH(st)H cable must be used.
7 - CONTROLS
7.1 Lamp Test button
Pressing the button will activate all LEDs and the buzzer thus testing
their proper functioning. Pls. see “ MENU MODES”.
7.2 Silence Alarm / Alarm button
Pressing the button in normal condition will cause activation of the
sounder output, the buzzer and the fire relay output as well as
illuminating of general FIRE LED. Pls. see “ MENU MODES”.
7.3 Button Control key
To use the buttons, the Button Control key must be positioned to the Enable position. Enabling the buttons will cause the buzzer to sound intermittently
every 5 sec.
7.4 Silence Buzzer button
Pressing the button will silence the buzzer. Pls. see “MENU MODES”.
7.5 Reset button
Pressing the button will reset fire and fault conditions as well as fire and fault relay outputs to return the panel to normal condition.
Figure.1 Panel Control Buttons
6.3 RELAY OUTPUTS
The panel has two relay outputs with volt free changeover contacts rated 1A 30V DC, NC and NO. If a relay
output would be used in an application requiring continuous high current - even below the rated values - an
appropriate terminal should be used between the device and the relay output.
6.3.1 FIRE RELAY:
The fire relay activates on fire condition. The output is returned to its initial position by pressing Reset button
provided no fire condition is available. The fire relay is normally not energized.
6.3.2 FAULT RELAY:
The fault relay activates on fault condition. The output returns to its initial position automatically as soon as fault condition ends. Fault relay is normally
energized; this enables conveying a fault signal to a remote control unit when the panel goes out of power supply.
1-P.S : Panel relays are signal relays. Should be there contactor if these relays as a commander will operate any other device. Relay outputs can be
damaged without contactor If relay outputs are used for high current applications.
24V DC
EXTERNAL
DEVICE
24V DC
+
-
+
-
Fault
NC
Fire
ONO NCONO
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