A company 6RA70 equipment, in the direction of the times police F030!
My equipment is reversible rolling mill, each time the alarm F030 is the time to change, and sometimes just change the alarm, and sometimes to go for a while and then alarm, alarm reset after the normal work!
Detection of current loop optimization, the need to re optimize the current loop. Activate the “trace” function by using the fault to find the cause of the fault.
If the fault value is 1 or 2, if necessary, can be set U580 = 4, a detailed description of the U580 see instructions or document: http://support.automation.siemens.com/WW/view/en/19868341 value is 3 (such as fault current greater than r072.02 250%) may be due to the four quadrant braking device in voltage sag. Check motor brush commutation without ring fire, you can refer to the maintenance of the old motor. Note: fault F030 can only use U580 = 0 shield (can not use P820 shield).