Megmeet MV820 - Page 34

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Table 2-9 Description of LED on the PCBA of the expansion box
LED
Status
Description
Action
LED1
(Red)
Steady on
Normal power supply for the ECAT option
No need for actions
Off
No power supply for the ECAT option
Check whether the ECAT option is
properly connected to the drive
LED2
(Green)
Off
The state machine is in the Init state
Check whether the ECAT option is
properly connected to the host device
Flashing quickly
The state machine is in the Pre-OP state
Check whether the ECAT option is
properly connected to the host device
Flashing slowly
The state machine is in the Safe-OP state
Check whether the ECAT option is
properly connected to the host device
Steady on
The state machine is in the OP state
No need for actions
LED3
(Green)
Steady on
The master station reads/writes the
function code normally
No need for actions
Flashing every 0.5 s
The master station fails to read/write the
function code
Check the reading/writing faults and
find the causes in section 6.2 of the
ECAT02 user manual.
LED4
(Red)
Off
Normal
No need for actions
Steady on
Communication timeout between master
station and slave station
Check whether the ECAT option is
properly connected to the drive
Flashing every 0.5 s
Malfunction of ESC
Contact the manufacturer
Table 2-10 Description of LED on the communication port
LED status
Description
Action
Yellow light flashing
Normal connection with data transmission
No need for actions
Green light steady on
Normal connection
No need for actions
Yellow light steady on
Normal connection without data
transmission
Check whether there is
communication between the
EtherCAT master station and slave
station
Green light off
Disconnection
Check the wire connection