2/9/2023 2:23 PM | |
Joined: 6/16/2020 Last visit: 7/16/2024 Posts: 6 Rating: (0) |
Hello, We have a sand sieve machine with can run about 300 tones per hour, its driven by a 30KW motor and uses a G120 PM240-2 power unit and CU240E-2 PN-F control unit. About every 250 millisecond we get the following fault code: 7400 Drive: DC link voltage maximum controller active. Our solution was installing a brake chopper but we have searched around for about 3 full days how to get the drive to use it. We found some files but they all talk about parameter 1237, this CU does not have parameter 1237 so that was a dead end. Then we found a thread ( /tf/WW/en/Posts/96873 ) talking about a chopper with CU240 but it was as vague as possible. We still haven't found a clear thread about how to properly install and program the brake chopper. If there is anyone with a clear and simple explanation how to do this, please tell us. |
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