[Dsg-hallc_controls] Quadrupole field regulation

[Mike Fowler]

I found a few more things, sorry.

There are three operational modes:
a. Manual, current set point equals HMI_Set_Current_Value.
b. Calculated, I_Q1 is calculated from the momentum input.
c. MOL regulation with I_Target & I_MOL from EPICS.

Code comments:
1. If an Interlock occurs the regulation is not stopped. Need this.
2. If the MPS is ramping and the operator stops the regulation, the 
I_coarse value should be sent to the MPS. (Stop where it is)
3. There is no check to make sure the MOL value is within the 
operational limits.
4. If the analog signal I_coarse is less than the Last_I_Sent by even a 
small fraction the MOL value is used.
5. If I_coarse by chance happens to be equal to Last_I_Sent nothing happens.
6. Only Q1_I_Target has an associated MOL value, not I_Q1 or 
HMI_Set_Current_Value.
7. Consider this:
If I_coarse is equal to Last_I_Sent +/- a few amps
     true, MPS is at setpoint
     false, The MPS is still ramping, something happened, or the MPS 
tripped and the Last_I_Sent was not updated. (Interlock?)
             or the window is too small. Determine what to do.

8. Compare Q1_I_Target to Last_I_Sent to determine ramp direction 
instead of the analog I_coarse.

Cheers,
Mike




On 9/25/2018 10:37 AM, Mike Fowler wrote:
> Hi,
>
> Comments.
>
> The ability to manually input a current and send it without a MOL 
> value has been removed.
> Must be included.
>
> Cheers,
> Mike
>
>
>
> On 9/20/2018 9:12 AM, Amanda Hoebel wrote:
>> Hi Mike,
>>
>> I have attached pdfs of the field regulation routine for HMS Q1.  If 
>> this is correct I will make the routines for HMS Q2 and Q3, and for 
>> the quads in SHMS.
>>
>> Regards,
>> Amanda
>>
>>
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>
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