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5
WARRANTY
PWM interval time
Adjustment of the time interval for the pre-heating and emergency mode, during which the control circuit
is switched on and off again once.
Note: Do not to set the PWM interval time at a lower value than necessary because a short PWM interval
time may have a negative effect on the lifetime of the heating circuit relay.
Factory setting: 60 min
Emergency duty cycle & emergency mode
Emergency mode:
In addition to the automatic activation of the emergency mode, it can also be activated manually in the
event of malfunctions around the system. In the emergency mode the heating circuit output is activated
with a PWM (pulse width modulation) behaviour, in which the basic time and the duty cycle can be set.
The emergency mode can either be activated manually via the operating mode or automatically if there is
a temperature error in the combi sensor.
Emergency duty cycle:
Adjustment of the duty cycle (i.e. the time during which the heating is switched on in relation to the interval
time) of the PWM in emergency operation.
Factory setting: 0 %
OT-Limit pre-heating
Adjustment of the switch-off temperature in base temperature mode and pre-heating mode. Below this
temperature, the base temperature or pre-heating mode will be deactivated because heating the area
might lead to unfavourable conditions. Otherwise, at very low temperatures, the surface might not be
completely heated through. In such a case the thawed ice might freeze again, which would increase the
risk of slipperiness.
Factory setting: -20 °C
Check OT value continuously
Activation of a continuous monitoring of the outside temperature (OT). If no outside temperature value is
transmitted via the connected sensor or the weather forecast, an alarm is triggered, even if the OT value is
currently no required by the base temperature mode or the pre-heating mode.
Factory setting: No
Emergency mode with error temperature
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