Control function
Heating phase without manual intervention
Heating phase after activation
(Refer to Figure 1):
After activation and start of the controller, a slow heating phase will always follow when the fat is
cold. This phase is finished when the setpoint is reached, at the latest. In this slow heating phase,
the heating relay clocks, i.e. with the on time set in parameter "P1" being followed by the off time
set in parameter "P2" and vice versa. Slow heating is to ensure that congealed fat is heated up
gently at the start of operation. Via parameter "P7", you can stop the slow heating phase before the
setpoint is reached. If this is not desired, set P7=0.0 K.
Figure 1
Heating phase after slight cooling
(refer to Figure 2):
After minor cooling to temperatures above 50 °C, e.g. loading of small quantities of cold fat, the
normal heating function of the controller is maintained. The new heating phase will not be slowed
down, the heating relay will not be clocked with a thermostat function defined via the
parameterisation and a manually activated program “Pr.4”. If PID function is specified, the heating
relay will only clock within this range. The clock end defined via parameter "P7" does not have any
influence.
Figure 2
Heating phase
after activation
Setpoint
Heating phase
after minor cooling
Setpoint
Summary of Contents for ST96 Series
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