VI
Figure 6.33 Simple PLC operation diagram............................................................... 92
Figure 6.34 Multi-steps speed operation diagram.................................................... 94
Figure 6.35 Motor overload protection curve. ............................................................97
Figure 6.36 Overload pre-warning schematic diagram. ............................................. 98
Figure 6.37 Over-voltage stall function. ..................................................................... 99
Figure 6.38 Over-current stall function. ...................................................................100