Service Manual EKI
17
For internal use only
5.
Safety functions
5.1
Automatic deactivation of the control
The touch control is switched off automatically when
♦
after activation the user does not press any more buttons and no cooking zone is in use within
10 seconds;
♦
no button is reactivated after deactivation of the last cooking zone still in use. The deactivation time
for this is 10 seconds and is displayed by the decimal points flashing;
♦
one or more buttons is/are pressed for longer than 10 seconds.
(Apart from the repeat functions of the plus and minus buttons; here the 10 seconds only start after
the end value has been reached).
After deactivation of the control the H is still displayed if the cooking zone is hot.
Otherwise all displays and LEDs go off.
5.2
Heat display
If the temperature sensor of a cooking zone reports a cooking zone temperature of > 65°C, an “H“ is
displayed in the corresponding actuator display with the touch control switched off or with the touch
control switched on but the cooking zone switched off. If the temperature falls below 60°C, the display
goes off with the control deactivated. With the control activated the display changes from “H“ to “0“.
The parameters of the temperature values are stored together for all cooking zones in the EEPROM.
5.3
Power reduction due to excess temperature
5.3.1
Cooking zone temperature
A PT sensor is provided at each cooking zone which protects the induction coil from overheating.
The following action is taken if the cooking zone temperature is too high:
♦
At a cooking zone temperature > 250°C the fan is switched on at full speed.
If cooking zone 1 exceeds this temperature, any active booster function is also ended.
The booster LED goes off.
♦
At a cooking zone temperature > 280°C the power supplied is limited to max. 66% (cooking level 8).
If the cooking zone is used at cooking level 9, the power reduction is indicated in the corresponding
actuator display by the flashing of the values 9 and 8.
♦
If the cooking zone temperature rises to over 300°C, the zone is switched off.
The corresponding actuator display indicates “0“ and changes to “H“ after 3 seconds.
The parameters of the temperature values are stored for each cooking zone in the EEPROM.
