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Oriental motor US2 Series - User Manual

Oriental motor US2 Series
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HP-5079-2
AC Speed Controller
US2
Series
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and safety precautions.
Please read it thoroughly to ensure safe operation.
Always keep the manual where it is readily available.

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Questions and Answers

  • S
    Stacy CampbellAug 13, 2025
    What to do if Oriental motor Controller motor does not rotate?
    • L
      Laura MartinezAug 13, 2025
      If the Oriental motor Controller motor does not rotate, there are several possible causes. First, check the motor cable connection. Second, ensure the operation switch on the speed controller is set to the "RUN" position, not "STAND-BY". If using external signals, verify that the "external operation signal input" parameter is set correctly to " ." Also, make sure that either the FWD or REV input is ON, and that the applied voltage is within the specified range. Finally, confirm that you are using the correct combination of motor and speed controller.
  • A
    Allison JohnsonAug 17, 2025
    Why does my Oriental motor US2 Controller rotate in the opposite direction?
    • C
      Charles FreemanAug 17, 2025
      The Oriental motor Controller might rotate in the opposite direction because the rotation direction switch is set to the wrong side. Another reason could be the usage of a gearhead that rotates in the opposite direction. Finally, if using external signals, the FWD and REV inputs might be connected incorrectly or improperly. Check these connections to resolve the issue.
  • K
    Kristen RobinsonAug 20, 2025
    How to fix Oriental motor Controller when speed cannot change?
    • G
      groseAug 21, 2025
      If the speed of the Oriental motor Controller cannot be changed, it might be due to a limited setting range for the rotation speed. Check the settings for the "speed upper limit" and "speed lower limit" parameters.
  • T
    Thomas WhiteAug 25, 2025
    Why I cannot increase the rotation speed on my Oriental motor Controller?
    • P
      parkerronaldAug 25, 2025
      If the rotation speed of your Oriental motor Controller cannot be increased, it is likely that the speed upper limit is set. To resolve this, increase the speed upper limit.
  • J
    Joshua DelgadoAug 28, 2025
    What to do if rotation speed cannot be decreased on Oriental motor Controller?
    • C
      Courtney SchneiderAug 28, 2025
      If the rotation speed of your Oriental motor Controller cannot be decreased, it is likely that the speed lower limit is set. To resolve this, decrease the speed lower limit.
  • J
    Jeffery RoblesSep 1, 2025
    Why is the Oriental motor US2 Controller operation unstable?
    • A
      Alexander GonzalezSep 1, 2025
      Unstable operation and excessive vibration in your Oriental motor Controller could be due to electrical noise affecting the product. Also, ensure you are using the correct combination of motor and speed controller.
  • B
    bsavageSep 5, 2025
    Why Oriental motor US2 motor doesn't start instantaneously?
    • N
      Natalie ClarkSep 5, 2025
      If your Oriental motor Controller motor doesn't start instantaneously, it could be because the acceleration time is set too long. Try adjusting the acceleration time. Another possible cause is that the load inertia is too large, so revise the load inertia.
  • D
    Dalton AverySep 9, 2025
    What to do if Oriental motor US2 Controller display is blank?
    • A
      agalvanSep 9, 2025
      If nothing is indicated on the display of your Oriental motor Controller, even when the power is supplied, the power supply might not be connected properly. Check the connection of the AC power supply.

Summary

2 Safety Precautions

Warnings and Cautions

Covers critical safety warnings and caution points to prevent injury or property damage.

3 Preparation

Compatible Products

Details compatible motor and speed controller combinations based on output power and voltage.

4 Installation

5 Connection

Connecting the Power Supply

Explains how to connect the AC power supply to the speed controller's CN1 terminal.

Motor, Grounding, and Signal Connections

Details motor cable connection, proper grounding, and input signal wiring.

6 Operation

Operation Procedure

Step-by-step guide on how to operate the speed controller after connecting the power.

Adjusting Speed and Direction

Instructions for adjusting motor rotation speed and changing its direction.

8 Alarms

Alarm Codes and Causes

Details specific alarm codes (AL26, AL30, AL41, AL46) and their potential causes.

9 Troubleshooting

Common Operational Issues and Solutions

Addresses problems such as no display, motor not rotating, incorrect direction, or unstable operation.

12 Regulations and Standards

Installing and Wiring for EMC Compliance

Provides methods for installing and wiring to ensure mechanical equipment conforms to EMC Directive.

Oriental motor US2 Series Specifications

General IconGeneral
Protection ClassIP20
Communication InterfaceRS-485
TypeDriver
FunctionsSpeed control, positioning control
Operating Temperature0-40°C

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