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4-20 ma analog

10/22/2011 4:56 PM	Rate (0)
ALGUDKAR RAO Posts: 621 Rating: (10)	dear friends and experts one of my colligue handling trobo machine commissioning.there is 2 pumps are running in 100% speed mean full ie 20ma. so customers requirement is that speed has to be restricted to 60% to interrupt limitation. so i suggested to him that in the plc s7-300 program use the FC 105 scale converter.but he is done but it has not running in 60%. can any one having a idea plz suggest. thanking you with best regards algudkar
ALGUDKAR RAO Posts: 621 Rating: (10)
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10/22/2011 5:36 PM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	Hello, As I understood, that drive is contraolling by AO from PLC. So, you should use FC106 in order to limit the output. best regards, Hristo Mihalev

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10/22/2011 10:11 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 1/5/2026 Posts: 6892 Rating: (1368)	algudkar dear friends and experts one of my colligue handling trobo machine commissioning.there is 2 pumps are running in 100% speed mean full ie 20ma. so customers requirement is that speed has to be restricted to 60% to interrupt limitation. so i suggested to him that in the plc s7-300 program use the FC 105 scale converter.but he is done but it has not running in 60%. can any one having a idea plz suggest. thanking you with best regards algudkar Dear algudkar, Check the attachment for a simple limiter implementation by LAD. Best regards Attachment limiter.pdf (317 Downloads)
	Demo Channel on Youtube
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10/22/2011 10:20 PM	Rate (0)
Ayman Elotaify Diamond Expert Joined: 5/28/2008 Last visit: 1/8/2026 Posts: 4522 Rating: (843)	Hello, A small addition to hdhossieni, is to move MW104 to the Analog Output channel.
	Ayman Elotaify
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This contribution was helpful to 1 thankful Users hdhosseini