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.
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Apply
FAN SET.
Enter Fan Parameter Values
Select
CH123
70
º
C
60
º
C
5 min
1 hr
Select Fan Modes
Fan switching Off
Fan ON Time(Tp)
Fan OFF Time(Ts)
Fan switching On
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.
time(m)
Fan start value
T(p)
FAN WORKING DIAGRAM
Fan stop value
º
C
time(m)
T(p)
T(p)
T(p)
T(s)
T(s)
Saving Mode
Saving Mode
Continuous Cooling
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.
3.7 FAULT (instantaneous Temperature Increase)
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Apply
05
º
C/sec
FAULT SET.
Enter Temprature Diff. Value
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Cancel
Back
OK
120
º
C
FAULT SET.
Enter Temprature Diff. Value
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FAN SET.
Enter Fan Parameter Values
CH123
70
º
C
60
º
C
5 min
1 hr
Select Fan Modes
Fan switching Off
Fan ON Time(Tp)
Fan OFF Time(Ts)
Fan switching On
Cancel
OK
Back
Cancel
OK
Back
Save
Changes
Save
Changes
