Ulk-0808P-M8P6 Led Definition - Unitronics UG-ULK-1616P2-M2P6 User Manual

4.1.2 ULK-1616P2-M2P6 Series LED Definition
ULK-1616P2-M2P6 LED is shown in the below figure.
PWR
AUX
IO-LINK
IO
Note: When the Link indicator is always off, if there is no abnormality in the cable inspection and
replacement of other modules, it indicates that the product is working abnormally.
Please contact the manufacturer for technical consultation.
9
Status
Green: Power OK
Off: Module power disconnected
Green: Auxiliary power is OK
Red: The auxiliary power supply
is reversed
Off: Auxiliary power disconnected
Green: link is normal, data
communication is abnormal
Green flashing: link is normal,
data communication is normal
Off: Link not established
Red: Communication with the
master station is interrupted
Green: channel signal is normal
Red: There is output when the
port is short-
circuited/overloaded/without UA
power
Solution
Check power wiring
Check the wiring of the auxiliary
power port
Check auxiliary power wiring
Check the configuration of the
modules in the PLC
Check the cable
Check the status of the master
station / view the connection line
Check whether the wiring is
correct/measure UA voltage/PLC
program
UG_ULK-0808P-M8P6