11/30/2015 9:01 AM | |
Joined: 7/13/2011 Last visit: 4/21/2025 Posts: 37 Rating:
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Dear Experts, I am doing the new commissioning of sinamics G120 1. CU=Cu240E-2 2.PM= PM250(Regenarative module). Actually before giving the ON command the DC link voltage will be 560volts normal. Once i have given On command DC link voltage goes to 460volt. So i taken a trace and found in that 460 volts also continuously hunting.. I have attached the trace file for your reference. And i want to know what will be the reason for voltage Dip and voltage hunting if i given the ON command. And i checked without connecting the motor and with connecting the motor, but same responce. Even i checked 4 power module.. And all will be the same response with voltage dip... there are total 8 drives. thanks in advance AttachmentDC-trace.rar (163 Downloads) |
1/18/2016 9:06 AM | |
Posts: 153 Rating:
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due to small capacitor DC link can not be stored and if the motor is very small that time also it is possible to Hunt the voltage. |
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