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6.3.
SolarReady: "Hysteresis" control for photovoltaic systems
The ST 310 control unit is designed in the factory for the control of a kiln supplied with electricity from a central power
supply (PID). If the kiln is operated using electrical energy provided by a photovoltaic/PV system at the operating
location, the factory-fitted PID controller may not be sufficient. It might make sense to configure the optional
"hysteresis" control for photovoltaic/PV systems in the ST 310 controller. This is especially true if the photovoltaic/PV
system also has a storage battery (electricity storage/battery storage).
With solar-ready control ("Hysteresis"), the heating of the kiln is switched ON for at least 30 seconds per heating cycle.
This ensures that the electricity from the PV system is used optimally and any storage battery of the photovoltaic
system is used more gently by the kiln.
The optional "Hysteresis" control for photovoltaic/PV systems can be configured without replacing the ST 310
controller. In the controller, parameter P16 must be changed. Please refer to the following section 10.
7.
Error messages
7.1.
General description
If the control unit detects a problem, the buzzer will sound, and an error message will be displayed.
Note:
• Each of the listed error messages leads to the termination of the firing process. Terminating the firing process
protects the kiln from damage.
• The alarm buzzer will sound once per second.
• Disconnect the controller from the power supply before restarting it and commission a qualified electrician or
service technician to check the fault if you cannot rectify the problem yourself using the previously listed
information on troubleshooting.
7.2.
Display screen
This error message will alternate with a display of the kiln temperature.
7.3.
Reading error messages
Step
Action
h
Press the
key to obtain more information
1
on the error.
h
Press the
key again to display the length of
2
time the error has been present.
Remark
The first press will display the maximum temperature
reached in the firing.
The buzzer will mute.
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