Event name Low Torque Detected Event code 684A0000 hex
Meaning The output torque remained below the detection level for more than the detection time.
Source EtherCAT Master Function Mod-
ule
Source details Slave Detection tim-
ing
Continuously
Error attrib-
utes
Level Observation Recovery Automatic re-
covery
Log category System log
Effects User program Continues. Operation Not affected.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
(1) Low torque detected → Check if the settings are ap-
propriate for the motor
.
→ Perform auto-tuning.
→ Check if the frequency refer-
ence is not less than the slip fre-
quency of the motor
.
Set the motor constant parame-
ters according to the motor char-
acteristics and perform auto-tun-
ing.
Attached in-
formation
None
Precautions/
Remarks
None
Event name Motor Run Time Over Event code 684B0000 hex
Meaning The cumulative run time of the motor reached the set time for maintenance.
Source EtherCAT Master Function Mod-
ule
Source details Slave Detection tim-
ing
Continuously
Error attrib-
utes
Level Observation Recovery Automatic re-
covery
Log category System log
Effects User program Continues. Operation Not affected.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
(1) Motor run time over Check the cumulative run time in
1st cumulative motor run time
(3008-5F hex).
→ After maintenance, reset the
value of 1st cumulative motor
run time (3008-5F hex) to 0.
None
Attached in-
formation
None
Precautions/
Remarks
None
Appendices
A-282
M1 Series EtherCAT Type User’s Manual (I670)
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