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CMR2020

Created by: provence at: 2/7/2016 7:24 PM (15 Replies)

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2/7/2016 7:24 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	Q1 & Q2 of CMR2020 i have - 24 volts. shouldn't it be completely disconnected if there is no configuration in the signal definition and it shows that they are off in the monitoring on the WBM

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2/7/2016 7:50 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/16/2025 Posts: 34498 Rating: (4306)	The outputs of the CMR are transistor outputs. You probably measure 24VDC with a digital meter with a very high internal resistance. With an old analog meter, you would probably not measure anything. Edit: Are the output control LEDs off? Attachment Side 126.pdf (250 Downloads)
	Last edited by: ixo65 at: 2/7/2016 7:51:36 PM
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2/7/2016 8:04 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	Hi , yes the LEDs are off. ??
	Last edited by: provence at: 2/7/2016 8:08:36 PM Last edited by: provence at: 2/7/2016 8:12:27 PM Last edited by: provence at: 2/9/2016 12:44:28 AM
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2/7/2016 8:09 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/16/2025 Posts: 34498 Rating: (4306)	Also there are differences. There are Logo Base modules both with relay outputs as well as with transistor outputs. Only with the logos with relay outputs, you can measure anything, since the relay contacts are potential free.

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2/7/2016 8:19 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	Ok , I think i get it. I thought i could get away with not reading the manual . Thank You very much you probably spared the life of the CMR I hook an Led light to it and it is on.
	Last edited by: provence at: 2/7/2016 8:25:51 PM
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2/7/2016 8:23 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/16/2025 Posts: 34498 Rating: (4306)	provence just took it out of the box . got it to send text messages with inputs 1 & 2. wanted to use Q1 & Q2 to light up leds on console . from M to Q1 & Q2 i get no voltage , but from hot to Q1 & Q2 i get 24 volts and the outputs are negative side?? Sorry, but it is not nice when somebody have answered to your post and then you edit your posts. Registered then prefer a new post.

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2/7/2016 8:34 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	Sorry about editing. , leds are off but lights attached to outputs are on. only configured input 1 & 2 for text .

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2/7/2016 8:43 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/16/2025 Posts: 34498 Rating: (4306)	The outputs can be loaded with a maximum of 300 mA and not isolated. You have probably destroyed the outputs due to incorrect wiring or overloading.

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2/7/2016 9:05 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	nothing was wired to the outputs until now and it is an - led 2 mA

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2/7/2016 9:12 PM	Rate (0)
provence Experienced Member Joined: 9/7/2010 Last visit: 8/27/2024 Posts: 50 Rating: (2)	sorry 200mA . anyway it is very low usage. but it wasn't working before unless what you are say is i fried it with meter. either i can't fiqure out how to program or it was defective in the first place?

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