text: <s>[INST] PowerFlex DC 20P FaultCode 94 Hi, We have a Problem with a PowerFlex 20P Drive in a Crane. Sometimes we get the Faultcode 94 (TorqPrv Spd Band) . As far as we understand the Fault it has something to do with Torque Proving. But we don't know what to do. The strange thing is: -The Fault only happens sporadically , so the wiring should be okay -The Fault always happens when starting and before the brake opens. So there is no Load at this point. -The Fault only happens, when the Crane is in the lowest position and is unloaded. -When starting from a middle or the top Position (with or without load) the Fault never happens. -Fault 94 is non resettable so we need to Power cycle the drive to reset. After a Power cycle the fault never occurs a second time. So some values seem to be reset to default. Has anyone an idea what is wrong or what to do to fix this problem? The Drives logical circuit has been replaced and the problem stayed. When trying to fix the problem we once tried to set the Parameter 1100 Torq Prove Cfg to 0 and back to 1 to reset some saved Values in the drive but then we always get fault 94. [/INST] Well, you probably already looked at this, but here is the excerpt from the manual: This gives several parameters to look through. Regards, RM \\n </s>