Troubleshooting reducer

Gear Motor, Hypoid Motor, Croise Motor

1Does not rotate under no load
2It does not rotate when a load is applied
3Abnormal fever
4High-pitched noise
5Large vibrations
6Grease leaks

Brake-equipped Gear Motor, Hypoid Motor, and Croise Motor

7The brakes don't work
8Braking is weak
Long braking time
9The motor does not turn
The motor generates abnormal heat
The thermal relay operates
Brake noise is loud
10Abnormal fever

Small gear motor IoT specifications

11No alarm output [LED off]
12No alarm output [LED lights up blue]
13Warning output during normal operation [LED flashes red]
14Unable to write (change) parameters
15Unable to communicate

Small gear motor IoT specification (with self-shutoff)

16Power is not cut off [LED is lit]
17Power is cut off during normal operation (LED flashing)
18Parameter communication is not possible [LED is off]
19Unable to write (change) parameters
20Unable to communicate
回答へ

Gear Motor, Hypoid Motor, Croise Motor

1Does not rotate under no load
Cause 1power outageSolutionCheck the power supply and contact the power company
Cause 2Breaking of the connecting wireSolutionChecking the circuit
Cause 3Poor connection of the switchSolutionRepair or replacement
Cause 4Stator winding breakSolutionRepaired at our specialized factory
Cause 5Three phases have become single phaseSolutionChecking the terminal voltage
Cause 6Gear, shaft, and bearing damageSolutionRepaired at our specialized factory
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2It does not rotate when a load is applied
Cause 1Voltage dropSolutionWiring length check
Cause 2Gear wearSolutionRepaired at our specialized factory
Cause 3Overload operationSolutionReduce the load
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3Abnormal fever
Cause 1Overload operationSolutionReduce the load
Cause 2Start/stop frequency is too highSolutionReduce frequency
Cause 3Bearing damageSolutionRepair or replacement
Cause 4Voltage is too high or too lowSolutionChecking the voltage
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4High-pitched noise
Cause 1Continuous noise - bearing damage and gear wearSolutionRepaired at our specialized factory
Cause 2Intermittent noise - gear damage or foreign object caughtSolutionRepaired at our specialized factory
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5Large vibrations
Cause 1Gear and bearing wearSolutionRepaired at our specialized factory
Cause 2Improper installation/loose boltsSolutionRetightening
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6Grease leaks
Cause 1Looseness of fastening partsSolutionRetightening
Cause 2Oil seal damageSolutionexchange
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Brake-equipped Gear Motor, Hypoid Motor, and Croise Motor

7The brakes don't work
Cause 1Wiring errorSolutionChecking the wiring
Cause 2Defective switchSolutionReplacement/repair
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8Braking is weak
Long braking time
Cause 1Oil and dirt adhere to the liningSolutionDisassembly and cleaning
Cause 2Lining lifeSolutionRepairs and replacements
Cause 3Load inertia is too largeSolutionReduce the load inertia
Cause 4AC internal wiring wiringSolutionChange to DC external wiring wiring
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9The motor does not turn
The motor generates abnormal heat
The thermal relay operates
Brake noise is loud
Cause 1Brake wiring errorSolutionChecking the wiring
Cause 2Large brake gapSolutionGap adjustment
Cause 3DC rectifier failureSolutionReplacement/repair
Cause 4Brake coil open or short circuitSolutionRepaired at our specialized factory
Cause 5Poor contact of the switchSolutionRepairs and replacements
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10Abnormal fever
Cause 1High braking frequencySolutionReduce frequency
Cause 2Large load torque and load inertiaSolutionReduce the load
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Small gear motor IoT specifications

11No alarm output [LED off]
Cause 1SM unit power supply errorSolutionSupply 24V DC to the SM unit
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12No alarm output [LED lights up blue]
Cause 1Setting errorSolutionReview the parameter settings
Cause 2Setting errorSolutionCheck the dip switch settings
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13Warning output during normal operation [LED flashes red]
Cause 1Not wired correctlySolutionReview the wiring of the motor and SM unit
Cause 2Setting errorSolutionReview the parameter settings
Cause 3Setting errorSolutionCheck the dip switch settings
Return to list
14Unable to write (change) parameters
Cause 1Not logged inSolutionLog in.
Return to list
15Unable to communicate
Cause 1Communication power is not suppliedSolutionSupply 24V DC to the SM unit
Cause 2Not wired correctlySolutionReview the SM unit power supply and communication wiring
Cause 3Setting errorSolutionCheck the dip switch settings
Cause 4Setting errorSolutionReview the termination resistor settings
Return to list

Small gear motor IoT specification (with self-shutoff)

16Power is not cut off [LED is lit]
Cause 1Setting errorSolutionReview the parameter settings
Cause 2Setting errorSolutionCheck the dip switch settings
Return to list
17Power is cut off during normal operation (LED flashing)
Cause 1Not wired correctlySolutionReview the motor wiring
Cause 2Setting errorSolutionReview the parameter settings
Cause 3Setting errorSolutionCheck the dip switch settings
Return to list
18Parameter communication is not possible [LED is off]
Cause 1Motor power supply errorSolutionSupplying power specifications
Return to list
19Unable to write (change) parameters
Cause 1Not logged inSolutionLog in.
Return to list
20Unable to communicate
Cause 1Communication power is not suppliedSolutionSupply DC5V for communication power
Cause 2Not wired correctlySolutionRethinking communication wiring
Cause 3Setting errorSolutionCheck the dip switch settings
Cause 4Setting errorSolutionReview the termination resistor settings
Return to list

The above is a summary of the causes and solutions for common everyday malfunctions.
If you have any other problems, please consult your dealer.
In that case, please also inform us of the following information on the nameplate.

  • (1) Manufacturing number (MFG NO.)
  • (2) Model number (TYPE)
  • (3) Motor capacity (POWER)
  • (4) Reduction ratio (RATIO) or rotation speed (OUTPUT SPEED)
  • (5) Drawing number