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SINAMICS Control Unit 240E-2 DO supply voltage

Created by: kinjalpatel1899 at: 10/9/2017 1:01 PM (8 Replies)

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10/9/2017 1:01 PM	Rate (1)
kinjalpatel1899 Posts: 61 Rating: (15)	Hello Experts, In SINAMICS Control Units CU240 E-2, terminal no. 18....25 are Digital Outputs which are potential free & as per its catalogue it is 30V DC is mentioned. Can we apply 110V AC for the same?
kinjalpatel1899 Posts: 61 Rating: (15)	Last edited by: kinjalpatel1899 at: 10/9/2017 1:04:07 PM
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This contribution was helpful to 1 thankful Users Chetan2490

10/10/2017 6:33 AM	Rate (0)
Chetan2490 Posts: 149 Rating: (16)	Dear Experts, Same Query as mentioned above, details mentioned in the catalogue is attached. Please advise for the same. Attachment CU240E-2.png (152 Downloads)
Chetan2490 Posts: 149 Rating: (16)
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10/10/2017 10:45 AM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/8/2026 Posts: 6065 Rating: (828)	Hello, the terminals are specified for 0.5A up to 30V DC. Divergent conditions are not tested and not released. The easiest way to provide full compatibility would be to use an auxiliary relay on the DO with the requested performance data.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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This contribution was helpful to 1 thankful Users Vladsat

10/10/2017 2:00 PM	Rate (0)
kinjalpatel1899 Posts: 61 Rating: (15)	Thanks for the reply. But I don't have external 30V DC power supply. So how i can fulfill my requirement with 110V AC power supply as i have only 110V AC auxiliary poewer supply is available. Kindly suggest for the same.
kinjalpatel1899 Posts: 61 Rating: (15)
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10/10/2017 2:27 PM	Rate (0)
zako Experienced Member Joined: 3/9/2012 Last visit: 12/5/2025 Posts: 102 Rating: (8)	why you don't use a couble relais?

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10/10/2017 3:14 PM	Rate (0)
Chetan2490 Posts: 149 Rating: (16)	zako why you don't use a couble relais? Dear Zako, Available supply voltage for DO is a factor not relays.
Chetan2490 Posts: 149 Rating: (16)
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10/10/2017 3:51 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/8/2026 Posts: 6065 Rating: (828)	Hello, you can try to use the internal 24V of X133 terminal 9 to control an auxiliary relay via DO terminals and connect the 110V AC to the auxiliary relay. But you have to keep in mind the maximum current capacity of the 24V out terminal. If the internal 24V is not enough you could use a SITOP power supply which can work on 110V AC to generate 24V DC.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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This contribution was helpful to 1 thankful Users Chetan2490

10/11/2017 1:24 PM	Rate (0)
kinjalpatel1899 Posts: 61 Rating: (15)	Hi, That is right. But the question is can i give 110V AC Supply through potential free contact of Control Unit 240E-2 DO?
kinjalpatel1899 Posts: 61 Rating: (15)
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10/11/2017 1:47 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/8/2026 Posts: 6065 Rating: (828)	No
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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This contribution was helpful to 1 thankful Users kinjalpatel1899

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