A-117
Appendices
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
A-3 Sysmac Error Status Codes
App
A-3-2 Error Description
Event name Encoder Communications Disconnection Error Event code 08080000 hex
Meaning A disconnection was detected because communications between the encoder and the Servo Drive were stopped more
frequently than the specified value.
Source EtherCAT Master Function Module Source details Slave Detection
timing
Continuously
Error attributes Level Minor fault Recovery Error reset (after
cycling slave
power)
Log category System
Effects User program Continues. Operation Power drive circuit is OFF for relevant slave.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Remedy Prevention
The encoder is not wired correctly. Wire the encoder correctly as shown
in the wiring diagram. Correct the
connector pin connections.
Wire the encoder correctly as shown
in the wiring diagram. Connect the
connector pins correctly.
Attached
information
None
Precautions/
Remarks
“21” is displayed on the Servo Drive front panel and F021 is given as the AlarmCode (4001 hex)
Event name Encoder Communications Error Event code 08090000 hex
Meaning There is a communications error for the encoder.
Source EtherCAT Master Function Module Source details Slave Detection
timing
Continuously
Error attributes Level Minor fault Recovery Error reset (after
cycling slave
power)
Log category System
Effects User program Continues. Operation Power drive circuit is OFF for relevant slave.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Remedy Prevention
The power supply voltage of the
encoder is low.
Provide the required encoder power
supply voltage of 5 VDC ±5% (4.75 to
5.25 V). Be careful especially of
voltage drop when the encode cable
is long.
Provide the required encoder power
supply voltage of 5 VDC ±5% (4.75 to
5.25 V). Be careful especially of
voltage drop when the encode cable
is long.
Noise If the Servomotor cable and the
encoder cable are bundled together,
separate them. Connect the shield to
FG.
If the Servomotor cable and the
encoder cable are bundled together,
separate them. Connect the shield to
FG.
Attached
information
None
Precautions/
Remarks
“21” is displayed on the Servo Drive front panel and F121 is given as the AlarmCode (4001 hex)
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