Omron R88D-KN02H-ECT-R User Manual (English)

Questions and Answers:

R
Rose NelsonAug 27, 2025
What to do if Omron R88D-KN02H-ECT-R Servo Drives show Overload?
- R
  Richard JonesAug 27, 2025
  If Omron Servo Drives show an overload, it could be due to a heavy load, excessive effective torque, vibration or hunting from faulty gain adjustment, incorrect or broken Servomotor wiring, a machine hit by an object, distortion, a stuck electromagnetic brake, or incorrect wiring between multiple machines. Check torque waveforms for oscillations. Increase the capacities of the Servo Drive and Servomotor, set longer acceleration and deceleration times, and reduce the load. Readjust the gain. Ensure the Servomotor cable is correctly connected and replace if necessary. Remove any distortion from the machine and reduce the load. Measure the voltage at the brake terminals to turn OFF the brake. Correctly wire the Servomotor and encoder to match the axes.
K
Katie HowardSep 5, 2025
Why Omron Servo Drives show Control Power Supply Undervoltage?
- T
  Taylor HallSep 6, 2025
  Omron Servo Drives may show a Control Power Supply Undervoltage error if the voltage between the positive and negative terminals in the control power supply converter drops below the specified value. This can be due to a low power supply voltage, a momentary power interruption, insufficient power supply capacity, or a faulty Servo Drive. To resolve this, measure the voltage between the L1C and L2C lines on the connectors and the terminal block. Increase the power supply voltage or change the power supply. Increase the power supply capacity. If the issue persists, replace the Servo Drive.
J
Jennifer ChenSep 4, 2025
Why Omron R88D-KN02H-ECT-R Servo Drives show Encoder Communications Disconnection Error?
- J
  Joseph CooperSep 4, 2025
  Omron Servo Drives may show an Encoder Communications Disconnection Error if communications between the encoder and the Servo Drive stop more frequently than the specified value. To resolve this, ensure the encoder is correctly wired as shown in the wiring diagram and correct any connector pin connections.
P
Patricia MarquezSep 3, 2025
What causes Excessive Hybrid Deviation Error in Omron Servo Drives?
- A
  Andrew AvilaSep 3, 2025
  An Excessive Hybrid Deviation Error in Omron Servo Drives, during fully-closed control, occurs when the difference between the load position from the external encoder and the Servomotor position from its encoder exceeds the Hybrid Following Error Counter Overflow Level setting. To address this: check the Servomotor and load connection, and the external encoder and Servo Drive connection. Verify that the change in Servomotor position and load position have the same sign when moving the load. Ensure the External Feedback Pulse Dividing Numerator and Denominator, and External Feedback Pulse Direction Switching are set correctly.
H
hjamesSep 2, 2025
Why Omron Servo Drives show Encoder Communications Data Error?
- L
  Laura BrownSep 2, 2025
  Omron Servo Drives may display an Encoder Communications Data Error if there is an error in the contents of the data, primarily due to noise, even if no communications error occurred with the data itself. This can happen even when the encoder cable is connected. To resolve this, ensure the encoder power supply voltage is within the required 5 VDC ±5% range, particularly if the encoder cable is long. If the Servomotor cable and the encoder cable are bundled together, separate them. Also, ensure the shield is connected to FG.
M
Matthew DavisAug 31, 2025
Why Omron Servo Drives show Encoder Communications Error?
- G
  Gregory ReedAug 31, 2025
  Omron Servo Drives may display an Encoder Communications Error due to a data error, primarily caused by noise. This can occur even if the encoder cable is connected. To address this, ensure the encoder power supply voltage is within the required 5 VDC ±5% range, especially if the encoder cable is long. Separate the Servomotor cable and the encoder cable if they are bundled together. Connect the shield to FG.
K
Kevin LucasAug 30, 2025
Why Omron Servo Drives show Servo Drive Overheat?
- T
  Tyler HenryAug 30, 2025
  Omron Servo Drives may overheat if the temperature of the Servo Drive radiator or power elements exceeds the specified value. This can be caused by a high ambient temperature around the Servo Drive or an overload condition. To resolve this, improve the ambient temperature and cooling conditions of the Servo Drive. Additionally, consider increasing the capacities of the Servo Drive and the Servomotor, setting longer acceleration and deceleration times, and reducing the load.
A
asanchezAug 29, 2025
Why Omron R88D-KN02H-ECT-R Servo Drives show Regeneration Overload?
- L
  Linda MartinezAug 29, 2025
  Omron Servo Drives may show a Regeneration Overload if the regenerative energy exceeds the processing capacity of the Regeneration Resistor. This can occur due to high regenerative energy during deceleration from a large load inertia, high Servomotor rotation speed, or the external resistor's operating limit being restricted to a 10% duty. Check the load rate of the Regeneration Resistor through communications. Increase the capacities of the Servo Drive and the Servomotor, and lengthen the deceleration time. Use an External Regeneration Resistor. Set the Regeneration Resistor Selection to 2.
K
Kevin MaddenAug 27, 2025
How to fix Error Counter Overflow in Omron R88D-KN02H-ECT-R Servo Drives?
- R
  Robert WoodsAug 27, 2025
  To fix an Error Counter Overflow in Omron Servo Drives, the issue arises when position error pulses exceed the Following error window setting. This can occur if motor operation doesn't follow the command or if the Following error window value is too small. Begin by checking if the Servomotor rotates according to the position command pulse. Examine the torque monitor for saturated output torque and adjust the gain accordingly. Maximize the set values on the Positive and Negative torque limit values. Ensure the encoder is wired correctly. Lengthen the acceleration and deceleration times, and reduce the load and speed. If necessary, increase the set value of object 6065 hex.