Remote Alarm Function - Vestfrost ULTF 40 VTS098 Notice D'utilisation

EN

Remote alarm function

BK
OR
WH
Fig� Internal XW737K controller with
build-in alarm relay
Alarm
1. NC
2. NO
3. COM
Your device is equipped with a remote alarm
connection to send alarm signals to a building
management system, a monitoring unit, visual
or acoustical warning device etc�
The alarm output is managed freely by the
built in controller of the unit�
Alarm criteria may be too low temperature,
too high temperature, power failure, open
door or similar�
The alarm output is an electrical floating
output (dry contact) which acts like a ON/OFF
switch�
A SPDT (single pole, dual throw) relay with
maximum switch rating of 250V 3A is main-
tained by the build-in XW737K controller unit�
The relay terminals are explained this way:
COM: COMMON terminal
NO: NORMALLY OPEN terminal�
Connects to COM when the alarm is activated
NC: NORMALLY CLOSED terminal�
Disconnects from COM when the alarm is
activated
An alarm interface cable of maximum
30 meters can be attached without the use of
tools to the 3-pole alarm clamp connector�
Wire thickness must be within 0�5mm2 to
2�5mm2 and fitted with core crimp terminals�
Vestfrost Solutions 21