EasyManua.ls Logo

Omron R88D-KN15H-ECT-R - User Manual

Omron R88D-KN15H-ECT-R
484 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
Cat. No. I573-E1-03
USER’S MANUAL
OMNUC G5 SERIES
R88M-K@
(AC Servomotors)
R88D-KN@-ECT-R
(AC Servo Drives)
AC SERVOMOTORS/SERVO DRIVES
WITH BUILT-IN EtherCAT COMMUNICATIONS

Table of Contents

Questions and Answers

  • J
    Jennifer LeonNov 24, 2025
    Why Omron R88D-KN15H-ECT-R Servo Drives show Main Circuit Power Supply Undervoltage (PN)?
    • J
      John CoxNov 24, 2025
      Omron Servo Drives may display a Main Circuit Power Supply Undervoltage error (PN) due to several reasons. If the Undervoltage Error Selection is set to 1, a momentary power interruption between L1 and L3 might have exceeded the specified Momentary Hold Time. Other causes include low power supply voltage, insufficient power supply capacity due to inrush current, phase-failure in 3-phase input models operated with single-phase power, or a faulty Servo Drive. To resolve this, measure the voltage between the connector (L1, L2, and L3) lines. Increase the power supply voltage or change the power supply. Check the Momentary Hold Time setting. Ensure each phase of the power supply is correctly connected, using L1 and L3 for single-phase 100 V and 200 V. Increase the power supply capacity. If the...
  • R
    Robin RomanAug 27, 2025
    How to fix Error Counter Overflow in Omron R88D-KN15H-ECT-R?
    • L
      Leslie DavisAug 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.
  • S
    Sandra MartinAug 28, 2025
    Why Omron R88D-KN15H-ECT-R show Regeneration Overload?
    • C
      Connie CoxAug 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.
  • S
    Scott HarrisAug 30, 2025
    Why Omron R88D-KN15H-ECT-R Servo Drives show Servo Drive Overheat?
    • J
      jonathanbennettAug 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.
  • T
    tina75Aug 31, 2025
    Why Omron Servo Drives show Encoder Communications Error?
    • L
      Lauren Olson DDSAug 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
    kylewilsonSep 23, 2025
    What causes encoder communication disconnection error in Omron R88D-KN15H-ECT-R Servo Drives?
    • M
      Matthew ReedSep 23, 2025
      If you encounter an encoder communications disconnection error with Omron Servo Drives, it means a disconnection was detected because communications between the encoder and the Servo Drive were stopped more frequently than the specified value. To resolve this, wire the encoder correctly as shown in the wiring diagram and correct the connector pin connections.
  • K
    kelleyjoshuaSep 18, 2025
    How to fix encoder communication error in Omron R88D-KN15H-ECT-R?
    • D
      David WalkerSep 18, 2025
      If you're experiencing an encoder communications error with your Omron Servo Drives, it's likely due to noise affecting the data from the encoder. To fix this, provide the required encoder power supply voltage 5 VDC ±5% (4.75 to 5.25 V), paying special attention when the encoder cable is long. If the Servomotor cable and the encoder cable are bundled together, separate them. Also, connect the shield to FG.
  • A
    Ana HoffmanSep 18, 2025
    What does excessive hybrid deviation error mean for Omron R88D-KN15H-ECT-R Servo Drives?
    • B
      briana68Sep 18, 2025
      If you're getting an excessive hybrid deviation error on your Omron Servo Drives, it means that during fully-closed control, the difference between the load position from the external encoder and the Servomotor position from the encoder was larger than the number of pulses set as the Hybrid Following Error Counter Overflow Level (3328 hex). Check the Servomotor and load connection. Check the external encoder and Servo Drive connection. When moving the load, check to see if the change in the Servomotor position (encoder feedback value) has the same sign as the change in the load position (external encoder feedback value).
  • W
    William HaasSep 9, 2025
    What to do if Omron Servo Drives are overloaded?
    • T
      Teresa WilliamsSep 9, 2025
      If you're encountering an overload with your Omron Servo Drives, it means the feedback value for torque command exceeds the overload level specified in the Overload Detection Level Setting (3512 hex). Check if torque (current) waveforms oscillate or excessively oscillate vertically during analog output or communications. Review the overload warning display and the load rate through communications. You can increase the capacities of the Servo Drive and the Servomotor, set longer acceleration and deceleration times, and reduce the load. Alternatively, try readjusting the gain.
  • O
    othomasSep 7, 2025
    What causes Overspeed in Omron R88D-KN15H-ECT-R Servo Drives?
    • C
      cynthia44Sep 7, 2025
      Overspeed in Omron Servo Drives occurs when the Servomotor rotation speed exceeds the value set on the Overspeed Detection Level Setting. This can be due to excessive speed commands, incorrect input frequency, dividing ratio, or multiplication ratio of the command pulse. If overshooting occurs due to faulty gain adjustment, adjust the gain. Ensure the encoder is wired correctly.

Summary

1 Introduction

Terms and Conditions Agreement

Exclusive Warranty

Omron warrants products against defects in materials and workmanship for twelve months.

Limitations

Buyer Remedy

Limitation on Liability; Etc

Safety Precautions

Safety Precautions

Read safety precautions section and main text before using product for safe and correct operation.

Models and External Dimensions

2-2 How to Read Model Numbers

2-3 Model Tables

Lists standard models of Servo Drives, Servomotors, Cables, Connectors, and peripheral equipment.

2-4 External and Mounting Dimensions

Specifications

3-1 Servo Drive Specifications

Provides general specifications for Servo Drives, including operating temperature, humidity, and standards.

3-3 Servomotor Specifications

Lists specifications for OMNUC G5-Series AC Servomotors, including general specs and performance data.

System Design

4-1 Installation Conditions

Explains space conditions, mounting direction, and environment operating conditions for servo drives and motors.

4-2 Wiring

Provides peripheral equipment connection examples for various Servo Drive models.

4-3 Wiring Conforming to EMC Directives

Details requirements for EMC Directive conformance, including control panel structure and noise filters.

4-4 Regenerative Energy Absorption

EtherCAT Communications

5-1 Display Area and Settings

5-4 Process Data Objects (PDOs)

Drive Profile

6-1 Controlling the State Machine of the Servo Drive

Describes how the state of OMNUC G5-series Servo Drives is controlled by Controlword and Statusword.

6-3 Cyclic Synchronous Position Mode

Explains how the controller provides target position using cyclic synchronization for position control.

6-6 Fully-closed Control

Describes using an external encoder to detect position for accurate positioning control.

Applied Functions

7-1 Sequence I;O Signals

Explains how to set sequences and allocate input/output signal functions to connector pins.

7-2 Forward and Reverse Drive Prohibition Functions

7-3 Overrun Protection

Explains how this function detects Overrun Limit Error and stops the Servomotor to prevent machine edge damage.

7-4 Backlash Compensation

7-5 Brake Interlock

Explains how to set the output timing for the brake interlock output (BKIR).

7-6 Electronic Gear Function

7-7 Torque Limit Switching

7-8 Gain Switching Function

Switches position loop and speed loop gain based on conditions like load inertia or motor speed.

Safety Function

8-1 Safe Torque OFF Function

Cuts off motor current and stops the motor via input signals from a safety device.

8-2 Operation Example

8-3 Connection Examples

Details on Servo Parameter Objects

9-1 Basic Settings

Explains basic settings like rotation direction switching, control mode selection, and autotuning settings.

9-2 Gain Settings

Covers position loop gain, speed loop gain, and related time constants for adjustment.

9-3 Vibration Suppression Settings

Details settings for adaptive filters and notch filters to suppress machine vibration.

9-6 Extended Objects

Troubleshooting and Maintenance

12-1 Troubleshooting

Provides preliminary checks for problems, including power supply voltage and error display analysis.

12-2 Warnings

12-3 Errors

Lists error numbers, detection functions, causes, and measures for troubleshooting.

12-4 Troubleshooting

Offers guidance on troubleshooting using error displays and operation states.

12-5 Periodic Maintenance

Omron R88D-KN15H-ECT-R Specifications

General IconGeneral
TypeServo Drive
ModelR88D-KN15H-ECT-R
Rated Output1.5 kW
CommunicationEtherCAT
SeriesR88D
Input Frequency50/60 Hz
Protection ClassIP20
Control MethodPosition/Speed/Torque Control
Ambient Temperature0 to 55 °C
Storage Temperature-20 to +85 °C
Humidity90% RH or less (non-condensing)
Shock19.6 m/s2

Related product manuals