DEMA CPM 310 G User Manual page 79

Thermal Alarm Θ
Trip Θ Alarm Θ
Just like , is a heating threshold in
Alarm Θ
percentage; however, function activates LEDs
and any possibly configured outputs to inform the
administrator to take appropriate precautions, instead
Alarm Θ
of tripping the circuit breaker. setting can be
done within the range of %50 - %200, with the
Alarm Θ
limitation that value cannot be set over the
Trip Θ Alarm Θ Active
set value. function can be set as
Passive Alarm Θ
or via the option.
Alarm Θ
function can be utilized in two ways.
Thermal Θ Alarm Θ
When measurement reaches
threshold, the user is notified via the static alarm LED
on the frontal face of CPM 310 G, while the alarming
Alarm Menu
situation is declared on the . The use of
Alarm Menus
will be examined thoroughly on the
dedicated section in the following pages.
Alarm Θ function can also be utilized to automate
cooling systems or to inform the supervisor about the
situation remotely. If, e.g., a forced air cooling system
is to be driven when the protected power transformer
reaches a fixed heating percentage, a programmable
output with Alarm Θ function appointed can be
employed to generate a start signal to the
preconfigured appropriate circuit. If the Alarm Θ
notification is to be sent to the supervisor via an
auxiliary system, e.g. a GPRS communication system, a
programmable output with Alarm Θ function appointed
can be employed to provide notification signal to the
related device. Doing this, CPM 310 G will inform the
configured communications device to take appropriate
action when Alarm Θ threshold is reached. □
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