KAEL Muhendislik Elektronik TC - PT100 Manual page 10

Fan Stop Value:The temperature value, at which the fan relay will be deactivated after, is energized.
Fan ON Time (Tp): Set in minutes. It can be selected from 1-30 min or OFF can be selected and this
feature can be canceled.
Fan OFF time (Ts): Set in hours. You can choose from 1 to 24 hours. Tp and Ts times remain
energized during the fan relay Ts at the end of each Tp period if the temperature value on the sensors
has exceeded the Fan Stop value and the Tp parameter is not selected as OFF.
The aim here is to save the energy by
starting the transformer cooling, which starts
to increase in temperature, by operating the
fan in short time steps. If the temperature
exceeds the Fan Start value, this feature is
disabled until the temperature value falls
below the Fan Stop value. Saving mode
automatically activates if the temperature
rises above the Fan Stop value.
ºC
Fan start value
Fan stop value
T(p)
3.7 FAULT (instantaneous Temperature Increase)
Instantaneous temperature increase analyzes the temperature rise (ΔT) value in seconds
(°C/sec).
The user can choose from 1 ° C to 30 ° C (ΔT). To turn off this feature, this parameter must be set
to OFF in the setting section. If the calculated ΔT value is higher than the value set by the user,
the device inhibits possible ALARM, TRIP and FAN conditions and energizes FAULT relay. The
display shows the calculated ΔT value for the relevant channel. The device will continue to operate
normally when the Reset button on the screen is pressed to remove the resulting error.
If the device is to be operated by connecting it to the windings of high-power electric motors, it is
recommended that ΔT to be set between 20 °C and 30 °C. This is because the instantaneous
temperature increase (ΔT) of the end of a running motor rotor load can occur.
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Enter Fan Parameter Values
Select Fan Modes
Fan switching On
Fan switching Off
Fan ON Time(Tp)
Fan OFF Time(Ts)
Select
FAN WORKING DIAGRAM
T(p)
T(s) T(s)
Saving Mode
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Enter Temprature Diff. Value
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FAN SET.
Enter Fan Parameter Values
CH123
Select Fan Modes
70 ºC
Fan switching On
60 ºC
Fan switching Off
5 min Fan ON Time(Tp)
1 hr Fan OFF Time(Ts)
OK OK
Apply
T(p)
Continuous Cooling
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FAULT SET.
Enter Temprature Diff. Value
05 ºC/sec
Apply OK
FAN SET.
CH123
Save
70 ºC
Changes
60 ºC
5 min
1 hr
Back Back Cancel Cancel
time(m)
T(p)
time(m)
Saving Mode
FAULT SET.
Save
120 ºC
Changes
Back Cancel