MD021 Plastic Wire Drawing Machine User Manual 
 
Figure 3-1 Indicators on the operation panel and wiring digram 
 
Data
RUN/ERR
ON
OFF
Power
T/A
T/B
T/C
+12 V
DO
+ 5 V
AI
GND
DI2
DI1
GND
U
V
W
L
N
PE
 
 
3.2.1 Descriptions of Indicators on the Operation Panel 
DATA: This indicator blinks when data is received. 
RUN/ERR: This indicator stays on when the inverter is running, and 
blinks  when  a  fault  occurs.  You  can  set  the  indicator  to  another 
function by modifying the function of the DO terminal. 
POWER: This indicator is on when the power button is pressed and 
the power supply is normal. If the indicator becomes off, it indicates 
that the power supply is abnormal or a fault occurs. If the indicator 
blinks,  it  indicates  that  the  wiring  of  the  control  circuit  may  be 
abnormal, triggering protection to the inverter.