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Difference between sinamics G150 and S120(régulation master-slave)

Created by: Med_Teb at: 11/25/2024 1:26 PM (5 Replies)

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11/25/2024 1:26 PM	Rate (0)
Med_Teb Joined: 12/7/2023 Last visit: 12/5/2024 Posts: 6 Rating: (0)	Hello all, In my installation I have 02 DC motors of 235 kw each, managed by two speed drive (master-slave), so that they work in synchronization, and I want to switch to asynchronous motors, and my question is as follows: 1- Do I work with Sinamics G150 or S120 drive, and what is the difference between the two in terms of regulation and precision. Best regard
	Last edited by: Med_Teb at: 11/25/2024 14:43:12
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11/27/2024 12:19 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/5/2024 Posts: 5960 Rating: (820)	Dear Med_Teb, according to your synchronism application there are two necessary drive based scenarios possible: Load sharing https://support.industry.siemens.com/cs/document/38470057/sinamics-s-dcc-load-sharing?dti=0&lc=en-WW Speed synchronism https://support.industry.siemens.com/cs/document/109757232/sinamics-s120-synchronism-applications-with-dcb-extension?dti=0&lc=en-WW A G150 is a single axis drive in a cabinet design. It is used to control asynchronous machines only in vector control. Each drive has got a own CU and a single line connection. A synchronism with G150 need a communication between the two drives. Please find general details about G150 here: https://mall.industry.siemens.com/mall/en/de/Catalog/Products/10045424 The S120 is a multi axis drive and is also available in chassis or cabinet design. It can be also used to control asynchronous machines. The two drives will be controlled by one CU, the whole drive system is supplied by an infeed device. The communication between the two drives is realized via DriveCliq-communication. Please find details here: https://mall.industry.siemens.com/mall/en/de/Catalog/Products/10255130
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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11/27/2024 12:52 PM	Rate (0)
Med_Teb Joined: 12/7/2023 Last visit: 12/5/2024 Posts: 6 Rating: (0)	Thank you for your answer, I want to know, does the G150 drive provide the master/slave function without using an external controller (PLC or other), for example: can we set the first drive as a master and the other as a slave without a PLC?

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11/28/2024 12:02 PM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/5/2024 Posts: 5960 Rating: (820)	Hello Med_Teb, without feedback on whether the "master/slave" is based on: load sharing or torque coupling, speed synchronisation or position synchronisation, it is not possible to simply answer with yes or no. The simplest configuration of load sharing, in which the slave drive only has a droop, works without any further requirements. For everything else, peer-to-peer communication via SINAMICS Link (CBE20) or OALINK is required without a PLC. And in some cases, additional software functions or application examples have to be installed for this.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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11/28/2024 2:39 PM	Rate (0)
Med_Teb Joined: 12/7/2023 Last visit: 12/5/2024 Posts: 6 Rating: (0)	Hello, I have two motors to drive a rotary cement kiln, such that I want to install two drives (G150) one is master and the other slave, such that the master drive(G150) receives the speed setpoint from a plc, and the slave drive(G150) receives the torque coupling from the master drive. Is it recommended with CBE20 or OALINK, or should I switch to SINAMICS S120? Best regard
	Last edited by: Med_Teb at: 11/28/2024 15:02:31
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12/2/2024 2:22 PM	Rate (1)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 12/5/2024 Posts: 5960 Rating: (820)	Hello, i have no experience with rotatory cement kiln. All solutions are possible but I can't evaluate what is the best. There is an example via PLC. SINAMICS G: Load sharing for two coupled drives https://support.industry.siemens.com/cs/ww/en/view/109774232
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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