Rohde ST 410 - Adjusting Firing Values During Firing; Hysteresis Regulation for PV Systems (ST 411)

64 / 291 - EN -
8.3.5. Adjusting the firing values during firing
During the program, certain firing values can be changed using the controller:
 Use the
g key to select the desired parameter during the firing process.
 The parameter is indicated accordingly in the course of the program on the graphical display by a flashing icon.
 The firing value is shown on the main display and can be adjusted with the
d and f keys in the usual way.
 The contents of the current segment or any segment still to be executed can be changed.
 Firing will still carry on as normal while these changes are being made.
 The controller will return to its normal running display 20 seconds after key presses cease (or immediately after
“END” is displayed).
 Changes made to programs in this way are stored and are used for subsequent firings.
8.4. “Hysteresis” regulation for photovoltaic systems (ST 411 only)
The ST 411 control system is factory-set to control a kiln that is provided with electrical energy from a central power
supply (PID). If electrical energy is provided at the installation site by a photovoltaic/PV system to operate the kiln, the
factory control (PID) may not be adequate. It might be useful to configure the optional "hysteresis" regulation for
photovoltaic/PV systems in the ST 411 controller. Especially, this is true if the photovoltaic/PV system is also equipped
with a storage battery (electricity storage/battery storage).
If you use a photovoltaic/PV system to operate your kiln and would like advice on the optimal control behavior of the ST
411 control system, please contact the manufacturer.
The optional "hysteresis" regulation for photovoltaic/PV systems can be configured without replacing the ST 411
control system, but the device may have to be sent to the manufacturer for configuration or a service appointment may
be necessary on site.
9. Error messages
9.1. General description
If the control unit detects a problem, the buzzer will sound, and an error message will be displayed.
9.2. Display screen
Display Description
Main display
This error message will alternate with a display of the kiln temperature.
Segment display
Displays the respective segment number where the error may have occurred.
9.3. Reading error messages
Step Activity Remark
1
Press the h key to obtain more information on the error.
The first press will display the maximum
temperature reached in the firing.
2
Press the h key again to display the length of time the
error has been present.
The buzzer will mute.