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Difference Between SLM & ALM

Created by: kinjalpatel1899 at: 7/14/2013 9:31 AM (6 Replies)

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7/14/2013 9:31 AM	Rate (1)
kinjalpatel1899 Advanced Member Joined: 2/12/2013 Last visit: 3/28/2021 Posts: 61 Rating: (15)	Hello, I want to know what is the difference between Smart line module & Active line module?

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7/14/2013 12:17 PM	Rate (1)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 12/22/2022 Posts: 480 Rating: (43)	Hi ALM has input filters and so reduces harmonic contents when compared to SLM With ALM line current will be much more sinusoidal than square wave type with SLM ALM regulates (in normal mode) the DC bus voltage against input voltage variations where as SLM can't regulate Regards, Vijay

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7/14/2013 1:42 PM	Rate (0)
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 8/25/2022 Posts: 1750 Rating: (270)	N. Vijay Hi ALM has input filters and so reduces harmonic contents when compared to SLM With ALM line current will be much more sinusoidal than square wave type with SLM ALM regulates (in normal mode) the DC bus voltage against input voltage variations where as SLM can't regulate Regards, Vijay Hello, i found following threads with simialr discusssion. SLM & ALM IN SERVODRIVES Active Line Module vs Smart Line Module hope this helps.
	VANDE MATARAM.....
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7/14/2013 3:17 PM	Rate (0)
kinjalpatel1899 Advanced Member Joined: 2/12/2013 Last visit: 3/28/2021 Posts: 61 Rating: (15)	in some machines, Both ALM & SLM COUPLED to a Double Motor Module to operate a machine......why?

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7/15/2013 7:55 AM	Rate (1)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 12/22/2022 Posts: 480 Rating: (43)	Hi Hope this link helps where it is discussed more elaborately /tf/WW/en/Posts/71269 Regards, Vijay

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7/15/2013 10:22 AM	Rate (0)
viralpatel Silver Member Joined: 11/18/2010 Last visit: 8/5/2022 Posts: 523 Rating: (31)	hi, differences see cataloge PM21 The advantages of the ALM are for example - regulation at a 400V line up to 720 V DC link voltage (so you get more output voltage for your motors) - power factor correction - sine form of the current - high stabilty at weak grids - for example constant DC- link although the line goes down to 50% line voltage - master slave / redundancy at a common DC- linkd VP

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7/15/2013 10:25 AM	Rate (0)
viralpatel Silver Member Joined: 11/18/2010 Last visit: 8/5/2022 Posts: 523 Rating: (31)	kinjalpatel1899 in some machines, Both ALM & SLM COUPLED to a Double Motor Module to operate a machine......why? Hi Kinjal, Can you tell me what is rating of LM and Double motor module . i haven't seen tis type configuration as you have mentioned till date.. VP

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