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Common DC bus of power modules

Created by: automationguy123 at: 5/23/2017 10:30 AM (3 Replies)

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5/23/2017 10:30 AM	Rate (0)
automationguy123 Bronze Member Joined: 5/15/2010 Last visit: 5/1/2023 Posts: 170 Rating: (3)	Hi, I need suggestion. In my winder applications can i make an arrangement to common DC bus of PM240 and put resistor (suitable to 7.5KW inverter) across 7.5KW inverter? I have 3.7KW inverters for 4no. and 0.75KW inverter for 2no and 7.5KW inverter 1no. Edit:- Also if i configure in V/F mode change parameter P1280 to 0 (Inhibit Vdc controller) of 7.5KW will this work or any more changes are required?
	Last edited by: vinit at: 5/23/2017 10:36:58 AM
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5/26/2017 1:02 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 11/29/2023 Posts: 5711 Rating: (771)	Hello, DC coupling of PM240-2 is not official released. It is of your own risk. The suitable resistor for the PM240 7,5KW has a specific resistance, and this resistance define the braking power. The braking chopper can't handle resistors with less resistance.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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5/29/2017 6:36 AM	Rate (0)
automationguy123 Bronze Member Joined: 5/15/2010 Last visit: 5/1/2023 Posts: 170 Rating: (3)	Hi, Thanks for reply. For me common DC bus is working.

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10/8/2017 11:59 AM	Rate (0)
AutoGen_859228 Posts: 1 Rating: (0)	Can you lease provide specific part #s of the Power Module/s you are using? Is your success with PM240 or PM240-2?
AutoGen_859228 Posts: 1 Rating: (0)
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