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EtherCAT error indicator (ERR)
Indicator Status Description
OFF No error EtherCat communication normal
ON
CPU response timeout (PDI
Watchdog timeout)
CPU did not respond to the Ethercat
communication in time
Blinking
Invalid
Configuration
Parameter setting error, causing the system
to be unable to switch status; please
confirm the control program.
The indicator flickers with a frequency of
200ms ON, 200ms OFF.
Single Flash Synchronization signal error
CPU was unable to receive the
synchronization signal under DC
synchronization control mode.
The indicator flashes with a frequency of
200ms ON, 1000ms OFF, which means it
flashes once every 1s.
Double Flash
PDO timeout (SM Watchdog
timeout)
Controller did not send PDO.
Flashes twice every 1s
(2) Connection
Due to physical characteristics of EtherCAT communications, when using serially connected single
or multiple slave stations, please pay attention to that two RJ-45 ports (CN5/CN6) provided by the servo
driver have direction. CN5 is defined as IN; define CN6 as OUT.
(3) Communication Cable
When using Ethernet, the controller and servo driver use standard Ethernet cable CAT5e. It is
recommended to use shielded Ethernet cable if an ideal communication quality is required.
EtherCAT
Controller
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