MD021 Plastic Wire Drawing Machine User Manual 
 
terminals  or  communication.  When  the  indicator  is  off,  it  indicates 
operation via operation panel. When the indicator is on, it indicates 
operation  via  terminals.  When  the  indicator  blinks,  it  indicates 
operation in the communication mode. 
4.1.2 Description of the Unit Indicators 
 
4.1.3 Digital Display 
The  5-digit  LED  display  is  able  to  display  operating  frequency, 
monitoring data and error codes. 
4.1.4 Description of the Keys 
Table 4-1 Functions of the keys 
Enter or exit Level I menu. 
Enter the menu interfaces 
level by level, and confirm the 
parameter setting. 
Increase the value or function 
code.