How to troubleshoot Omron Servo Drives runaway detected?
- JJulie RobertsSep 13, 2025If your Omron Servo Drives have detected a runaway condition, it's likely due to the encoder or Servomotor power line being wired incorrectly. Correct the wiring. 

How to troubleshoot Omron Servo Drives runaway detected?
If your Omron Servo Drives have detected a runaway condition, it's likely due to the encoder or Servomotor power line being wired incorrectly. Correct the wiring.
What to do if Omron Servo Drives have system error?
If your Omron Servo Drives are showing a system error due to a control panel error, replace the Servo Driver.
What to do if Omron Servo Drives have command input reading error?
If your Omron Servo Drives are showing a command input reading error, it could be due to command input reader misoperation. Reset the alarm, then re-start the operation. If the issue persists, it might be because the command input reader is broken, and you should replace the Servo Driver.
What causes Omron Servo Drives encoder overheating (ABS)?
Encoder overheating (ABS) in Omron Servo Drives can be caused by: * Encoder is defective. Replace the Servomotor. * Ambient Servomotor temperature exceeds 40°C. Lower the ambient temperature to 40°C or less. * Servomotor spring mounting clip is too small. Use a spring mounting clip the same dimensions or greater than those of the radiation shield indicated in the Servomotor efficiency specifications. * Operating above rated output. Lighten the load.
How to fix Omron Servo Drives overspeed error (ABS)?
If you're getting an overspeed error (ABS) on your Omron Servo Drives, it means the Servomotor is rotating at 200 r/min. or more when the control circuit power supply is turned ON. Turn ON the control circuit power supply while the Servomotor is OFF.
Why Omron Servo Drives show overload?
If your Omron Servo Drives display an overload, it could be due to: * Running at over 245% of rated torque (effective torque). In this case, repair the Servomotor shaft if it is locked. If the Servomotor power line is wired incorrectly, rewire it correctly. Lighten the load. Lengthen the acceleration and deceleration times. Adjust the gain. * Fallen power supply voltage. Check the power supply voltage, and lower to within tolerance range.
What to do if Omron Servo Drives show battery error (ABS)?
If your Omron Servo Drives display a battery error (ABS), it means the absolute encoder battery voltage has fallen (to 2.7 V or less). Replace the battery while the control circuit power supply is ON.
How to troubleshoot Omron Servo Drives checksum error (ABS)?
If you're experiencing a checksum error (ABS) with your Omron Servo Drives, it indicates an absolute encoder memory check error. Set up the absolute encoder correctly.
How to solve Omron Servo Drives backup error (ABS)?
If you're encountering a backup error (ABS) with your Omron Servo Drives, and it occurs the first time the encoder is used, it's likely due to the absolute encoder backup voltage having fallen. Set up the absolute encoder correctly.
How to fix Omron Servo Drives main circuit detection error?
If your Omron Servo Drives are showing a main circuit detection error due to main circuit detection data error, replace the Servo Driver.
| Brand | Omron | 
|---|---|
| Model | R88M-W | 
| Category | Servo Drives | 
| Language | English | 
Overview of the W-series AC Servomotors and Servo Drivers, highlighting key capabilities and benefits.
Explains the naming conventions and identifies the parts and connectors of the OMNUC W-series Servo Driver.
Lists general specifications, performance, and terminal block details for OMNUC W-series AC servo drivers.
Details general specifications and performance data for OMNUC W-series AC servomotors, including different series and types.
Details environmental conditions, mounting directions, and ambient temperature requirements for servo drivers and servomotors.
Outlines the step-by-step procedure for mounting, wiring, preparing, checking, and operating the servo system.
Details checks before turning on power, terminal block wiring, Servomotor, Encoder, and Control connectors.
Explains how to set and check user parameters, including parameter tables and changing settings.
Details various functions like position control, speed control, torque control, and gain switching for OMNUC W-series AC servo drivers.
Provides preventive checks, analysis tools, and troubleshooting steps for common issues.
Lists and explains various alarm codes detected by the Servo Driver, their causes, and countermeasures.
Guides on diagnosing errors using alarm display and troubleshooting based on operating status.