|Common alarm indicator LSE|
The LSE Common Alarm Indicator is designed to signalise technical faults. The units are front mounted in a standard cut-out. All electrical connections are realised by plug-in screw terminals on the back of the unit. Therewith, unit changes and mensurations are easily to realise. To build larger systems with a higher amount of inputs than a single device offers, it is possible to connect up to twelve units. The front is equipped with 8 or 16 red alarm LED's and one green LED to indicate the normal condition. In addition to this, buttons for the lamp test, horn acknowledgement and a buzzer are built in. The acknowledgement and lamp test can also be realised by external buttons. The unit provides one potential free contact (NO) for the audible device / horn and two contacts (NO) for group and common alarm with the same potential. The supply- and signal voltage is available in many different varieties. As an option the units are available with output relays. It is also possible to produce the Common Alarm Indicator without buttons and buzzer or with a time delay for all inputs.
The common alarm relay is active as long as a signal input is active. If the unit works in a network the relay is activated by every signal input in the whole system. The relay switches off when all signal inputs are off.
The group alarm relay is active as long as a signal input of the own device is active. The relay switches off when all signal inputs of the unit are off.
The lamp test button activates all LED's for about 4 seconds. If several units are connected together the lamp test is overlapping.
Audible device / horn
The internal buzzer and the horn relay are activated by the signal inputs. The way in which the relay and the buzzer switches off is programmable as followed:
DIP switch 2 off
The relay stays active until acknowledgement, even when the signal inputs went off meanwhile. Acknowledgement is possible with the HQ button or an external switch.
DIP switch 2 on
The relay stays active as long as a signal input is active or until acknowledgement. Acknowledgement is possible with the HQ button or an external switch.
The signal inputs can be changed in two groups from NO normally open to NC normally closed with the DIP switch No. 3 and 4. Units with 8 signal inputs have two groups of 4 inputs, units with 16 signal inputs have two groups of 8 inputs which can be programmed.
Output relays (optional)
The output relays are connected to the signal input carrying the same number. The relays are working as an image of their inputs.
Please click on the image for a larger view or go to the download of the wiring diagram sheet
Common Alarm Indicator with 8 inputs / LED's / external signal voltage
Common Alarm Indicator with 16 inputs / LED's / external signal voltage
Common Alarm Indicator with 8 inputs / LED's / internal signal voltage
Common Alarm Indicator with 16 inputs / LED's / internal signal voltage
To build larger systems, it is possible to connect up to twelve units. The horn acknowledgement, the lamp test, the common alarm relay and the horn are activated overlapping. The connectors are used as follows:
Connector 26: Not used
Connector 27: Horn acknowledgement (external and overlapping)
Connector 28: Lamp test (external and overlapping)
Connector 29: Not used
Connector 30: Not used
Connector 31: Common alarm relay activation
Connector 32: Horn activation
Connector 33: Ground
The programming of the LSE Common Alarm Indicator is effected by a DIP-switch as followed:
Please note that the supply voltage must be switched off and on to activate the programme!
|144 mm||72 mm||136 mm||65 mm||164 mm||154 mm||8.5 mm|
|Amount of signal inputs||8 / 16|
|Type of signal inputs||Changeable between NO/NC in two groups|
|Supply voltage nom.||24VDC||24VAC||60VDC||110VDC||230VAC|
|Supply voltage range||20-30VDC||22.5-30VAC||51-78VDC||93-127VDC||207-253VAC|
|Power consumption||6.3W||6.3VA||13W||11W||11 /VA|
|Frequency (AC units)||40-60Hz|
|Signal voltage nominal||24VDC||24VAC||60VDC||110VDC||230VAC|
|Signal voltage tolerance||18-30VDC||18-30VAC||51-78VDC||93-127VDC||170-250VAC|
|LED colours||Red / special colours on request|
|Switching capacity relays H/Gr/Sa||AC:1000VA / DC:300W|
|Switching capacity relays M1-M16||AC:250VA / DC:125W|
|Ambient temperature||-20 - +65°C|
|Protection class||Housing: IP40 / Connectors: IP20|
|Connectors||Plug-in screw terminals 4mm² (2x1.5mm²)|
|Weight||800g to 1400g|
|Front panel cut-out||138x68mm|