Rohde ST 630, Operation Manual

Page: 78 / 344

76 / 341 - EN -
8.1.2. Operation using the
j
• If the
j
key is pressed during firing, it will be halted (not paused).
• Pressing the
j
key again will restart the firing from the beginning.
• The controller will look at the current kiln temperature and if this is greater than the required soak temperature
then it will automatically cool from the current temperature to the soak temperature.
• Since this process may not be desired, the
j
key should only be used to abort the firing process in an
emergency.
• The program can be paused, or program data can be changed while the controller is firing. This procedure is
preferable to using the
j
key (see section 8.1.5.).
8.1.3. Program delay
The program delay or program time delay can be used to delay the start of the firing program to a specific point in time.
⇒
The program delay can be entered or changed immediately after the start of the respective program.
⇒
Immediately after pressing the
j
key, “00.00” appears in the main display. The waiting time before the firing
starts can be set with the
d
and
f
keys.
Display Description
00 : 00
While the firing indicator light is flashing on the display, a program start delay of up to
"99 hours:59 minutes" can be entered using the
d
and
f
keys.
⇒
The firing process can be started by pressing the
j
key again or will do so automatically after 5 seconds. The
“Program running” indicator continues to signal that a firing is in progress.
Note:
The program delay for the delayed start for each firing process is set to “00.00” in the factory.
8.1.4. Program advance facility
It is possible to jump to the next section of the firing program while the firing program is running.
• While firing press and hold down the
<
key and the
d
key to obtain the program advance function.
• The controller will emit a short beep and immediately advances the program by one step.
• The process is indicated accordingly in the course of the program on the graphical display by a flashing icon.
• The effect of this is as follows:
­
If ramping, then the controller will switch to soak at the current kiln temperature.
­
If soaking, then the controller will advance to the next segment if any, or else it will end the firing.
­ If the next segment is programmed with the end of the firing program "END", the current firing is ended.
• Changes made to the operation of the controller in this way are temporary and are not stored.
8.1.5. Program pause facility
WARNING
Risk of serious damage to property due to too long a soak time when using the program
pause function.
⇒
If left too long at high temperatures, kiln damage could result.
⇒
The program pause function causes the program to pause but the temperature is still
maintained!
⇒
Leaving the ware too long at high temperatures could damage it or have a negative
impact on the firing results.