[dsg-svt] [New Logentry] Re: SVT Coolant Leak Sensor for Hardware Interlocks

[Peter Bonneau]

Since the AUX1 LED on the controller works and the AUX1 controller 
monitor output does not,  I'll be submitting a PR for a replacement 
controller.

The ADC was connected to the AUX1 monitor output which should have an 
output voltage when the controller AUX1 LED is on.




On 2/19/2018 12:40 PM, beng at jlab.org wrote:
>
>
>   Re: SVT Coolant Leak Sensor for Hardware Interlocks
>   <https://logbooks.jlab.org/entry/3534443>
>
> Lognumber 3534443 <https://logbooks.jlab.org/entry/3534443>. Submitted 
> by beng <https://logbooks.jlab.org/user/beng> on Mon, 02/19/2018 - 12:38.
>
> Logbooks: 	HBLOG <https://logbooks.jlab.org/book/hblog> HBSVT 
> <https://logbooks.jlab.org/book/hbsvt>
> Entry Makers: 	campero
> References: 	3532447 - SVT Coolant Leak Sensor for Hardware Interlocks 
> <https://logbooks.jlab.org/entry/3532447>
>
> We found that the Y1 output is a pulsed output, which won't work with 
> the cRIO as it is currently implemented (averaging and/or delayed trip 
> will allow it to work).
>
> Despite the manual saying that for an NPN output the COM+ terminal 
> should be used, when we tried that the circuit breaker in the box 
> tripped and even though we used the override keys the SVT still turned 
> off since those signals are after the breaker.
>
> We also didn't see any voltage on the ERR, SUB, or AUX1 outputs no 
> matter what the leak sensor was indicating. However, the AUX1 LED on 
> the controller matches the leak sensor status.
>
>
>
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