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What do the LEDs on the MRCU controllers mean?

The LEDs break down to the Controller PWR/ALM, RUN , C-DAT/C-ERR, NS, Driver PWR/ALM , and L/A LED .

Controller PWR/ALM LED
This LED indicates the status of the controller.

Green - No Light , Red- No Light -The power supply is not turned on.
Green Light , Red - No Light = The power supply is on.
Green - No Light, Red -  Light Blinking = An alarm is being generated. The alarm item generated can be checked by counting the number of times the LED blinks.The LED is lit in green when the alarm is reset.
Green and Read - Blinking twice at the same time* =
1.Information is being generated. The LED is lit in green when
the information is cleared.
2. The teaching screen is open on the MRC Studio software.
The LED is lit in green when the teaching screen is closed.
Repeating “Green → Red → Simultaneously lit* → No light” = This is the simulation mode.
*Green and red colors may overlap and may be visible as orange.


RUN LED

No Light - Program operation has not been executed.
Light - Program operation is being executed.


C-DAT/C-ERR LED
Green - No light,  Red- No Light =   
1. Information of the robot has not been written to the controller.
2 The power supply of the controller is not turned on.
Green - Light, Red - No Light=
This is in an online state. Communication inside the controller is being performed
properly.
Green - Blinking, Red - No Light = 
Communication inside the controller is established.
Green - No Light, Red -  Light = An error in communication inside the controller has occurred.


NS LED
This LED indicates the communication status with the scanner via EtherNet/IP.
Green - No Light , Red- No Light =
1 This is in an offline state.
2 The power supply of the controller is not turned on.
Green - Blinking, Red - No Light = This is in an online state. Connection has not been established with the scanner.
Green - Light , Red - No Light = This is in an online state. Connection is being established with the scanner.
Green - No Light, Red - Blinking = The connection to the scanner has timed out.
Green - No Light, Red - Light = The setting of an IP address is duplicated in the same system.
Blinking Alternately = Self-diagnosis when the power is turned on is being executed.


Driver PWR/ALM LED
No Light = The main power supply and the control power supply are not turned on.
Green Light =The main power supply and/or the control power supply are turned on.
Blinking Red= An alarm is being generated. The alarm item generated can be checked by counting the number of times the LED blinks.The LED is lit in green when the alarm is reset.
Blinking Blue = Information is being generated. The LED is lit in green when the information is cleared.


L/A LED
This LED indicates the LINK/ACT status of EtherNet/IP.
No Light=
1. This is in an offline state.
2.The frame of EtherNet/IP is not sent and received.
Blinking = 
1 This is in an online state.
2 The frame of EtherNet/IP is sent and received.
Light = 
1This is in an online state.
2 The frame of EtherNet/IP is not sent and received.