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OBA7 on 50Vac

Created by: GPSP at: 4/23/2014 10:08 AM (2 Replies)

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4/23/2014 10:08 AM	Rate (0)
GPSP Member Joined: 3/24/2014 Last visit: 10/17/2019 Posts: 15 Rating: (0)	Hi, I have an existing system that runs on 50Vac, the programme is quite large (6500) and will need a OBA7 according to the comfort software. All the inputs will be at 50Vac, there appears to be a OBA6 version which is AC/DC which looks like it will accept 50Vac inputs but the OBA7 version is only DC? The 230V version of the OBA7 switches at 79Vac so no good. Is there a way around this please?

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4/23/2014 4:58 PM	Rate (0)
Helmut_13 Posts: 2930 Rating: (432)	Hi, can you tell me which LOGO! support 50V AC? Concerning the LOGO! Manual there is no LOGO! supporting 50V AC. Not a LOGO! 0BA6 and not a 0BA7. So there is no way.
Helmut_13 Posts: 2930 Rating: (432)
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4/23/2014 5:36 PM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (709)	GPSP but the OBA7 version is only DC? The LOGO! 0BA7 230Vac exist have a look: 6ED1052-1FB00-0BA7 - Siemens Industry Online Support ... I do not know what inputs you have, maybe you can interface them with relay like this: MY4 48/50VAC (S) - OMRON INDUSTRIAL AUTOMATION - RELAY ...

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