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MECHATROLINK-II Communications Status LED Indicator
The table below shows the LED indication status and the corresponding conditions of the
communications.
LED status
Unlit
Green Flash
Green Light
Red Flash
Red Light
Note. If any of communication related error occurs while an error that is not related to MECHATROLINK-
II communications happens, the MECHATROLINK-II Communications Status LED Indicator
follows the corresponding communications status as shown above.
Turning on the Power Supply
Turn on the control circuit power after you conduct the pre-power-on checking.
You may turn on the main circuit power, but it is not a requisite.
It takes approx 2 seconds for the alarm output (/ALM) to turn on since the power-on. Do not
attempt to detect an alarm, during this period, by the Host Controller. This precaution relates to
the case when the power is turned on while the Host Controller is connected.
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
No communication is established.
Asynchronous communications is established.
Synchronous communications is established.
A clearable error occurred in MECHATROLINK-II communications.
• Communications error (Alarm No.83.0)
• Transmission cycle error (Alarm No.84.0)
• SSYNC_SET error (Alarm No.84.4)
• Watchdog data error (Alarm No.86.0)
• Transmission cycle setting error (Alarm No.90.0)
• CONNECT error (Alarm No.90.1)
• SYNC command error (Alarm No.91.0)
A non-clearable error occurred in MECHATROLINK-II communications.
• Node address setting error (Alarm No.82.0)
• SYNC process error (Alarm No.84.3)
9-2 Preparing for Operation
Communications status
9
9-4
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