Hi, Has anyone seen differences in equipment life comparing an AO Charm going to a SCR compared to a DO Charm going to a SSR?
We have historically used the AO/SCR combination and it has worked extremely well. How has the experience been for the DO/SSR combination been over the course of years? Would you recommend the DO/SSR combination for applications where long term reliability is a significant issue?
Andre Dicaire
In reply to Andre Dicaire:
In reply to Kent:
In reply to DBacker:
A DO operating as a continuous pulse output requires an AO DST, you setup the pulse frequency at the IO level and then use an analog output to adjust the on / off time. So DeltaV licensing costs would be the same for both.
Hello,
The pulse output is mainly used for small (under 80A) ssr -relays they usually dont have to much "Brain" inside them but they are cheap. If you need more power and reability + different control modes you would go for a SCR also known as Thyristor power controllers. They have the power control and supervision built in so you only need to give the setpoint to them and there you can choose from differnet types of voltage or current. The newer ones can also be connected to fieldbus/modbus connections so you might save some DST license? and read the actual values from the controller. The good thing with these highteck power controllers is that they measure all the values and you can set current limits if you have limitations in your grid-feed. Here you can see a list of different control modes that these power controllers have:
http://pages.advanced-energy.com/rs/180-YLZ-570/images/EN-OperatingModes-400-01.pdf?mkt_tok=eyJpIjoiWmpKaU5qZGxNbUpsTkRkbSIsInQiOiJ1Q2Q5OG1JNmhUeWlqKzJ4enBlVTN5K0dCVUVTZHFXYnVaWWtHNWRqK1JuMmVzZXYrNm9tb2hESHdUa2NiOWtpY1ZTK0pUT0FjWXJmM2hEUzNHS0hRRkJWOTJkZEFISVlDM0N6Z1VYN1Flbz0ifQ%3D%3D
Niklas Flykt
Klinkmann Oy
Key Account Manager safety products
nikfly@gmail.com
Thank you for all the input. All my experience over the years has been with SCRs. From what I'm hearing here, it sounds like there is not a huge difference in reliability. I guess we'll be trying it.
Thanks again for the input.
Kent E Mitchell, P.E.
92-H PRC
Bartlesville, OK 74003-6670
(918) 977-4654
On Apr 21, 2016, at 12:42 PM, Niklas Flykt > wrote:
Update from Emerson Exchange 365
pages.advanced-energy.com/.../EN-OperatingModes-400-01.pdf
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