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Omron R88D-KN ML2 Sries - User Manual

Omron R88D-KN ML2 Sries
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Cat. No. I572-E1-04
USER’S MANUAL
OMNUC G5 SERIES
R88M-K
(AC Servomotors)
R88D-KN-ML2
(AC Servo Drives)
AC SERVOMOTORS/SERVO DRIVES
WITH BUILT-IN MECHATROLINK-II COMMUNICATIONS
ML2
A/B
ML2
A/B

Table of Contents

Questions and Answers

  • D
    Diane WrightAug 14, 2025
    How to fix control power supply undervoltage on Omron R88D-KN ML2 Sries Servo Drives?
    • M
      monica03Aug 14, 2025
      If you're experiencing control power supply undervoltage with your Omron Servo Drives, start by measuring the voltage between the L1C and L2C lines on the connectors and the terminal block. The issue might stem from a low power supply voltage or a momentary power interruption, so try increasing the power supply voltage. Insufficient power supply capacity can also cause this, especially with inrush current when the main power supply is turned on, suggesting a need to change the power supply. In some instances, the Servo Drive may be faulty due to a circuit issue, requiring replacement.
  • S
    Suzanne CampbellOct 28, 2025
    What to do if Omron Servo Drives show overvoltage?
    • C
      Carrie GilbertOct 28, 2025
      If your Omron Servo Drives are showing an overvoltage error, first measure the voltage between the connector (L1, L2, and L3) lines to ensure it's within the allowable range. The problem might be that the power supply voltage is too high, in which case you should input the correct voltage. Also, check if a phase advance capacitor or UPS is causing sudden voltage increases and remove it if necessary. Furthermore, the regeneration resistor wiring could be broken, so use a tester to measure the resistance between the B1 and B2 terminals; replace the resistor if the wiring is broken. If the external regeneration resistor is inadequate, change the regeneration resistance and wattage to the specified values, calculate the regenerative energy, and connect an external regeneration resistor with th...

Omron R88D-KN ML2 Sries Specifications

General IconGeneral
CategoryServo Drives
SeriesR88D-KN
TypeServo Driver
Communication InterfaceMECHATROLINK-II
Protection FunctionsOvercurrent, Overvoltage, Undervoltage, Overheating
Ambient Operating Temperature0°C to 55°C (non-freezing)
Storage Temperature-20°C to 65°C (non-freezing)
Input Voltage200-230V AC (single-phase or three-phase)

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