Led Behavior - Mitsubishi Electric MELSERVO-J5 Series User Manual

LED behavior

RUN MS (RUN LED), ERR NS (ERROR LED), and Link/Activity operate in compliance with the EtherCAT standard
(ETG.1300 EtherCAT Indicator and Labeling Specification).
Definitions of LED displays
The following shows the LED status definitions.
LED state
On
Off
Flickering
Blinking
Single flash
Double flash
Explanations of LED statuses
■RUN MS (RUN LED)
The RUN LED indicates the EtherCAT communication status (ESM status).
LED
State Color

Off
Blinking Green
Single flash
On
■ERR NS (ERROR LED)
The ERROR LED indicates an error occurrence in EtherCAT communication.
LED
State Color
Off 
Blinking Red
Single flash
Double flash
On
■Link/Activity LED (OUT port/IN port)
The Link/Activity LEDs indicate the link status of each EtherCAT communication port.
LED
State Color
Off 
On Green
Flickering
Definition
The LED is lit steady.
The LED is unlit.
The LED turns on and off repeatedly in a 10 Hz cycle (every 50 ms).
The LED turns on and off repeatedly in a 2.5 Hz cycle (every 200 ms).
The LED turns on for 200 ms and off for 1000 ms repeatedly.
The LED repeats the cycle of turning on for 200 ms -> off for 200 ms -> on for 200 ms -> off for 1000 ms.
Explanation
Indicates the power supply being shut off or the Init state.
Indicates the Pre-Operational state.
Indicates the Safe-Operational state.
Indicates the Operational state.
Explanation
No errors
Indicates that the EtherCAT state cannot be changed as instructed from the master station.
Indicates that the EtherCAT state has been changed autonomously because of an internal error.
Indicates a watchdog error in the Sync manager.
Indicates critical errors such as a watchdog timeout.
Explanation
Indicates that the power supply being shut off or the link-unestablished state.
Indicates that the link is established but no traffic.
Indicates that the link is established with traffic.
3.2 Switch setting and display of the servo amplifier
3
3 STRUCTURE
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