9/22/2022 6:09 PM | |
Joined: 9/22/2022 Last visit: 2/27/2024 Posts: 1 Rating: (0) |
Hi Technical Support Team. I am associated with long rolling bar mill. I am using siemens product PCS 7 with Sinamics S-120 drive unit for rolling. We are having cooling bed moving rakes equipment which is group drive of three. three motors controlled through three drive units in one master and two & three in slave configuration. Our product size 16 to 45 mm round. As cooling bed is capable to take 140 bars, so in higher size (>40mm), there is more load transfered on rakes. There is a provision of taking empty cycle after every bar transfer on rakes. It reduce the load on rakes. Mechanical system is also coupled and whole system is mechanically connected. Before one month, we were taking continuous bars on rakes irrespective of load. But in last month moving rakes triiping intermittently on F7901, when bed was full. We expected as rolling profile was 42-45 so there is more load and we opted empty cycle scheme. But now when we rolling 32 profile also it got tripped when rakes were full. All motor and drive system chcked and no abnormality observed. My concern is how to go inside the problem. Whether it is mechanical coupling side issue or motor- drive side. load is rotational motion. Kindly help me in giving direction for solving the issue. Thanx & regards ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 09/23/2022 07:36:07New subject after splitting |
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