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[Apples]

Hi Kane,
I'm running a firing program now and the PV has reached 1780 F but the SV has gone to 2190F. SSb is 100. I thought the program was automatically supposed to stop advancing when the difference is 100 or more. It has continued  past a step where the program c13 = 1976F. Also I was not able to press the up arrow key to make the program HOLD. I did it in the software from Panel View.

[Kkane]

"Also I was not able to press the up arrow key to make the program HOLD. I did it in the software from Panel View."

I don't understand your question. There is no up/down key in the software. How did you press UP arrow key in the panel view?

If you press and hold up arrow key on the controller's physical keypad but not hold the program, please take a short video showing how you did it. Please email this video to Auber customer support.

I are not aware of the SSb issue. I will did some tests on my end.

[Apples]

Hey Kane,
Sorry I wasn't clear. When I was at the controller I was using the UP arrow to try and put the program on Hold but it would not change to HOLD. I went inside to the computer and from the panel view I used SET to change the RUN parameter to RUN=2 to create the hold.

My main concern now is the Ssb not pausing because my kiln doesn't keep up with the programmed ramp rate so it is critical that the program pause so my holds are done correctly at the correct temperatures. I now have to watch the program and each time it gets to key program step points I have to manually put the program on HOLD until the temperature catches up and then RUN again at that point.

Thanks,
Kent

[Kkane]

Here is the explanation. SSb parameter is only functional for soak step. See "safety-start" on the left of page 7 of its manual for details. During the ramp step, if the difference between PV and SV is over your SSb band, your program will not be on hold automatically. In order to use a soak step, soak step timer must be 1 or higher. If your soak step timer is 0, this soak step is skipped.

If you have a very long ramp step, you can consider splitting this long ramp step into multiple ramp steps, and put a soak step timer as 1 for each ramp steps. In that way, SSb will be in use.

When the program is on hold due to SSb limit, your A-M indicator will be flashing, but the bottom display will not flash HOLD. When the program is on hold due to SSb limit, you cannot "hold" the program again by holding the up arrow key. You can change RUN parameter as your mentioned before. I just tested one controller on my end. When the program is running at ramp step or soak step normally, holding UP arrow key will "HOLD" the program as designed. If your case is a different, please provide more details.

[Apples]

Thanks Kane. Makes sense now.
I have added 1 for my soak steps and split one of the longer ramp steps as you suggested. That should help with catching up in the middle of the ramp step. If you can take a second can you look at my before and after programs to check that I am doing what I think?

Thanks
Kent

[Kkane]

Your attached picture looks good. So you splitted your original ramp step 3 into 2 steps, with the same ramp rate. You can try and see how it works. If 2 steps still not good enough, you may need to split the original ramp step into 3 steps or even 4 steps.

The parameter name for ramp timer, soak timer and end temperatures are wrong. For example, step 1 should be R01, T01 and C01.

[Apples]

Kane thanks for the info and confirmation. I didnt really need to split but it will make my data look nicer. The step numbers are off because I am loading two program in the controller at once.