MD021 Plastic Wire Drawing Machine User Manual 
 
When  the  DI  terminal  has  input 
indicating  an  external  fault, 
information  about  the  fault  is 
displayed. 
Perform troubleshooting based on 
the displayed information. 
1.  Check  whether  the  host 
computer works  properly.  If not, 
check the connection  to  the host 
computer. 
2.  Check  whether  RS485 
communication is normal. If not, 
check the communication cable. 
3.  Check  whether  the 
communication  parameters  in 
group F3 are correctly set. If not, 
modify  the  communication 
parameters.   
Wire-break 
detection fault 
Information about the wire-break 
fault  is  displayed  when