MD021 Plastic Wire Drawing Machine User Manual 
 
proper range. 
4.  Check  whether  sudden  load 
occurs during deceleration. If yes, 
eliminate sudden load. 
Over-current 
during 
constant-speed 
operation 
1.  Check  whether  the  output 
circuit  of  the  inverter  is 
short-circuited. If yes, rectify the 
fault. 
2.  Check  whether  sudden  load 
occurs during the running. If yes, 
eliminate sudden load. 
3. Check whether the load can be 
reduced. If yes, reduce the load. 
Over-voltage 
during 
acceleration 
1.  Check  whether  the  input 
voltage is too high. If yes, reduce 
the voltage to the proper range. 
2. Check whether the acceleration 
time is too short. If yes, increase 
the acceleration time. 
1.  Check  whether  the  input 
voltage is too high. If yes, reduce