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Manual for Alarm WE 981

 

 

 

 

 

 

 

 

LS Control A/S 

 

Page 1 / 5 

Manual: 950-205795_Alarm_WE_981_UK 

rev.1.2 

 
 
 
 

Alarm WE 981 

 

Universal alarm with audible and visual alarm signals with sound 
mute function. 

 

 

 
Alarm WE 981 is available in 3 models with different supply power. 

 

100 – 240VAC (Product no. 49128) 

 

15 - 40VDC or 24VAC (Product no. 49129) 

 

11 – 14VDC or 9VAC  (Product no. 49127) 

Mounting 

 
Alarm WE 981 is mounted according to the general applicable installation rules. Alarm WE 981 is 
to be fixed on a plane and stable surface with screws in the 4 corner holes. Alarm WE 981 is not to 
be fixed on moving or vibrating surfaces. 

Summary of Contents for Alarm WE 981

Page 1: ...1 is available in 3 models with different supply power 100 240VAC Product no 49128 15 40VDC or 24VAC Product no 49129 11 14VDC or 9VAC Product no 49127 Mounting Alarm WE 981 is mounted according to the general applicable installation rules Alarm WE 981 is to be fixed on a plane and stable surface with screws in the 4 corner holes Alarm WE 981 is not to be fixed on moving or vibrating surfaces ...

Page 2: ...alarm when connected to 0 active low with internal pull up 3 Sound input alarm when connected to 0 active low with internal pull up 4 Voltage free relay switch normally open The relay is activated when the sound mute button is pressed i e the relay switch will close Max 30VDC 6A Max 50VAC 6A 5 6 9VAC or 9 14VDC Positive terminal when DC 7 N DC 8 24VAC or 15 40VDC Positive terminal when DC 9 Negati...

Page 3: ...l description Sound reset relay The sound reset relay is activated when the sound mute button is pressed The sound reset relay will deactivate 1 second after the sound mute button is released When the relay is activated a connection between terminals 4 and 5 will be established Sound signal When terminal 3 receives a sound input the sound signal will be audible The sound signal consists of 2 beeps...

Page 4: ...by activating the sound mute button To reactivate the audible alarm disconnect and reconnect 24VAC Connection to PLC In this situation the visual and audible signals are controlled by the PLC It is not possible to mute the sound internally but the PLC will receive a signal when the sound mute button is pressed No internal reset of sound Jumper in position OFF 2 short circuits between terminals 1 2...

Page 5: ...85dBA 10cm Applied standards DS EN 60730 1 2012 Automatic electrical controls for household and similar use EN 61000 6 3 A1 AC 2012 EN 61000 6 3 A1 2011 EN 61000 6 3 2007 Electromagnetic compatibility EMC Emission standard for residential commercial and light industrial environments EN 61000 6 1 2007 Electromagnetic compatibility EMC Immunity for residential commercial and light industrial environ...

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