Nanda NA300 Series User Manual And Technical Specifications page 114

NA300 Series Programmable Logic Controller Technical Specifications and User Manual
LED
P
R
A
F
RDY
STA
BUS
ERR
The working state corresponding to the indicator LED is as follows:
P: power supply indicator LED. It shows if the power supply is normal.

R: Run indicator LED. When the module is running normal, the green LED

flickers. If the green LED is always on, that means program has been running
but parameter is unloaded.
A: HIN Active Indicator LED. When HIN works normally, the LED is on，or it

turns off.
F: Fault Indicator LED. The LED is light when the module is fault.

Color
Blue Light/ off
Flicker/
Green Constant
Lighting
Green Light/ off
Red Light/ off
Light/ off
Green
Flicker/Light
Green Light/ off
Green Flicker/ off
Yellow off / Light
State
Power Supply normal / abnormal
Run normally/ program is running but
parameters are not loaded
HIN work normally/ abnormally
Fault/ Running normally
Main control exchanges data with
profibus normally / abnormally
Correctly/not correctly received the
configuration message from the
master
Communicate normally with
slave/Communicate abnormally with
slave
Diagnosable Fieldbus error / Running
normally
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Function