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LOGO! Contact module with LOGO!8 transistor

Created by: lcafaro at: 1/28/2016 6:34 PM (2 Replies)

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1/28/2016 6:34 PM	Rate (0)
lcafaro Posts: 8 Rating: (0)	Hello, is it possible to use the LOGO!8 transistor outputs to drive the coils in a LOGO! Contact relay module? I've read the datasheet and figured out that I can drive loads up to 300mA but I can't seem to find the specifications for the relays in the LOGO! Contact module. Also: do I need to add flyback diodes or are the LOGO! outputs protected already? Thanks.
lcafaro Posts: 8 Rating: (0)
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1/28/2016 7:00 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 6/27/2022 Posts: 27200 Rating: (3300)	lcafaro Hello, is it possible to use the LOGO!8 transistor outputs to drive the coils in a LOGO! Contact relay module? I've read the datasheet and figured out that I can drive loads up to 300mA but I can't seem to find the specifications for the relays in the LOGO! Contact module. Also: do I need to add flyback diodes or are the LOGO! outputs protected already? Thanks. The current consumption of the contact module with a 24VDC coil is 170 mA. I'd would take at your plaxce flyback diodes parallel with the coil. Attachment LOGO! 8 Soft manual 0BA8 2014_06 side 314.pdf (66 Downloads)

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This contribution was helpful to 1 thankful Users lcafaro

1/29/2016 7:44 AM	Rate (0)
lcafaro Posts: 8 Rating: (0)	ixo65 The current consumption of the contact module with a 24VDC coil is 170 mA. Perfect, seems like they're well within specs. Thanks for the document. Lorenzo
lcafaro Posts: 8 Rating: (0)	Last edited by: lcafaro at: 1/29/2016 7:44:26 AM grammar
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