LED display
8-1
8. LED display
Table 9 LED display specifications
Display
Name
Color
Content
POWER
Power indicator
Green
ON
Power ON
OFF
Power OFF or unit error
LINK
ASLINK transmission
indicator
Green
Flashing
ASLINK communication normal
ON/OFF
Unit error or setting error
SET
Automatic address
recognition indicator
Green
ON
Automatic address recognition in
progress
Flashing
EEPROM write operation in progress
OFF
Normal operation
ALM
ASLINK error
indicator
Red
ON
DP/DN disconnection error or no
response from slave units
Flashing
(w/ 1 second interval)
DP-DN short circuit
Flashing
(w/ 0.2 second interval)
24V DC not supplied or low voltage
OFF
Normal operation
RUN
EtherCAT status
indicator
Green
ON
Operational condition
Flashing
(blinking)
*1
Pre-operational condition
Flashing
(single flash)
*2
Safe operational condition
Flashing
(flickering)
*4
Initialization in progress
OFF
Initialized
ERR
EtherCAT error
indicator
Red
ON
Unit error
Flashing
(blinking)
*1
Communication setting error
Flashing
(single flash)
*2
Synchronization error, communication
data error
Flashing
(double flash)
*3
Application watchdog timeout
Flashing
(flickering)
*4
Boot error
OFF
No error
Link/
Activity
EtherCAT link status
indicator
Green
ON
Link detected, traffic not detected
Flashing
Link and traffic detected
OFF
Not linked
