Omron R88D-1SN ECT Series, User Manual, Page: 957 / 974

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Appendices
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
A-4 Sys
m
ac Error Sta
tus C
o
des
A
A-4
-2 Err
or De
scriptions
Event name Overload Warning Event code 387A0000 hex
Description
The Load Ratio of Servo Drive or motor (4150-81 hex) exceeded the level set in the Overload - Warning
Notification Level (4150-01 hex).
Source
EtherCAT Master Function Mod-
ule
Source details
Slave Detection
timing Continuously
Error
attributes
Level
Observation
*1
*1. You can change the level to minor fault by using Warning Level Change 1 Selection (4020-05 hex).
Recovery
---
Log category
System log
Effects User program Continues. Operation Not affected.
Indicators
EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System
-defined
variables Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
Operation was continued for a
long time with high load. Perform the following corrections
accordingly.
• Increase the set value of the
acceleration/deceleration time
and the stop time.
• Lighten the load.
• Adjust the gain or inertia ratio.
• If torque waveforms oscillate
excessively, adjust the system
by the tuning so that the oscilla-
tion does not occur.
• Set the appropriate brake timing.
• Increase the capacities of the
Servo Drive and the motor.
Check the items given for correc-
tions in advance and take counter-
measures as required.
There is incorrect wiring of the
motor cable or a broken cable • Connect the motor cable as
shown in the wiring diagram. If
the cable is broken, replace it.
Or, connect the motor cable and
encoder cable that are used
together to the same motor.
• Measure the voltage at the
brake terminal. If the brake is
applied, release it.
Connect the motor cable as shown
in the wiring diagram. Connect the
motor cable and encoder
cable/external encoder cable that
are used together to the same
motor.
Increase in friction Check machine conditions and
remove the cause of the friction. Take countermeasures so that
machine distortion is not gener-
ated.
Attached
information
Attached Information 1: Cause Details
1: The Servo Drive is overloaded
2: The Servomotor is overloaded
Precautions/
Remarks AL status code: -, Error No.: A000 hex