Troubleshooting reducer
DCBL driver
DCBL Hypoid Motor
| 14 | Does not rotate under no load |
|---|---|
| 15 | It does not rotate when a load is applied |
| 16 | Abnormal fever |
| 17 | High-pitched noise |
| 18 | Large vibrations |
| 19 | Grease leaks |
DCBL Hypoid Motor with brake
| 20 | The brakes don't work |
|---|---|
| 21 | The motor does not turn The motor generates abnormal heat The thermal relay operates Brake noise is loud |
| 22 | Abnormal fever |

DCBL driver
| 1 | Does not rotate under no load |
|---|
| Cause 1 | power outage | Solution | Check the power supply and contact the power company |
|---|---|---|---|
| Cause 2 | Breaking of the connecting wire | Solution | Checking the circuit |
| Cause 3 | Poor connection of the switch | Solution | Repair or replacement |
| Cause 4 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 5 | Protection Status | Solution | Checking the status |
| 2 | It does not rotate when a load is applied |
|---|
| Cause 1 | Voltage drop | Solution | Check power supply and wiring length |
|---|---|---|---|
| Cause 2 | Overload operation | Solution | Reduce the load |
| Cause 3 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 4 | noise | Solution | Check the ground wire |
| 3 | Abnormal fever |
|---|
| Cause 1 | Overload operation | Solution | Reduce the load |
|---|---|---|---|
| Cause 2 | Start/stop frequency is too high | Solution | Reduce frequency |
| Cause 3 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 4 | Voltage is too high or too low | Solution | Checking the voltage |
| 4 | High-pitched noise |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | Parameter misconfiguration | Solution | Checking the settings |
| 5 | Large vibrations |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | Parameter misconfiguration | Solution | Checking the settings |
| 6 | The setting does not work |
|---|
| Cause 1 | Input signal miswiring | Solution | Wiring check |
|---|---|---|---|
| Cause 2 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 3 | noise | Solution | Check the ground wire and connect the noise filter |
| 7 | Unable to communicate |
|---|
| Cause 1 | Slave address misconfiguration | Solution | SW1 check |
|---|---|---|---|
| Cause 2 | Communication speed misconfiguration | Solution | SW2 check |
| Cause 3 | Affected by noise | Solution | Check the ground wire |
| Cause 4 | The communication settings are incorrect | Solution | Checking the settings |
| Cause 5 | Attempting to set a value outside the setting range | Solution | Checking the Configuration |
| Cause 6 | Poor connection | Solution | Check the wiring |
| 8 | Analog input not recognized |
|---|
| Cause 1 | Miswiring | Solution | Check the wiring |
|---|---|---|---|
| Cause 2 | Disconnection | Solution | Check the wiring |
| Cause 3 | Parameter misconfiguration | Solution | Checking the settings |
| 9 | Frequent DC overvoltage |
|---|
| Cause 1 | Overload operation | Solution | Adding a regenerative resistor |
|---|---|---|---|
| Cause 2 | Regenerative resistor damage | Solution | Checking the resistance value |
| Cause 3 | Regenerative resistor connection failure | Solution | Check the wiring |
| 10 | Do not operate at the set torque |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 3 | Overload operation | Solution | Reduce the load |
| Cause 4 | Driver corruption | Solution | Driver replacement |
| 11 | No hold (no brake) |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | overload | Solution | Reduce the load |
| Cause 3 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 4 | Miswiring | Solution | Check the wiring |
| Cause 5 | Motor disconnection | Solution | Check the wiring |
| 12 | No hold (with brake) |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | overload | Solution | Reduce the load |
| Cause 3 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 4 | Miswiring | Solution | Check the wiring |
| 13 | Do not release the brake |
|---|
| Cause 1 | Power abnormality | Solution | Check the power supply |
|---|---|---|---|
| Cause 2 | Parameter misconfiguration | Solution | Checking the settings |
| Cause 3 | Miswiring | Solution | Check the wiring |
DCBL Hypoid Motor
| 14 | Does not rotate under no load |
|---|
| Cause 1 | power outage | Solution | Check the power supply and contact the power company |
|---|---|---|---|
| Cause 2 | Breaking of the connecting wire | Solution | Checking the circuit |
| Cause 3 | Poor connection of the switch | Solution | Repair or replacement |
| Cause 4 | Stator winding break | Solution | Repaired at a specialized factory |
| Cause 5 | Three phases have become single phase | Solution | Checking the terminal voltage |
| Cause 6 | Gear, shaft, and bearing damage | Solution | Repaired at a specialized factory |
| 15 | It does not rotate when a load is applied |
|---|
| Cause 1 | Voltage drop | Solution | Wiring length check |
|---|---|---|---|
| Cause 2 | Gear wear | Solution | Repaired at a specialized factory |
| Cause 3 | Overload operation | Solution | Reduce the load |
| 16 | Abnormal fever |
|---|
| Cause 1 | Overload operation | Solution | Reduce the load |
|---|---|---|---|
| Cause 2 | Operation with excessively frequent start/stop overloads | Solution | Reduce frequency |
| Cause 3 | Bearing damage | Solution | Repair or replacement |
| Cause 4 | Voltage is too high or too low | Solution | Checking the voltage |
| 17 | High-pitched noise |
|---|
| Cause 1 | Continuous noise - bearing damage and gear wear | Solution | Repaired at a specialized factory |
|---|---|---|---|
| Cause 2 | Intermittent noise - Gear scratches or foreign objects caught | Solution | Repaired at a specialized factory |
| 18 | Large vibrations |
|---|
| Cause 1 | Gear and bearing wear | Solution | Repaired at a specialized factory |
|---|---|---|---|
| Cause 2 | Improper installation/loose bolts | Solution | Retightening |
| 19 | Grease leaks |
|---|
| Cause 1 | Looseness of fastening parts | Solution | Retightening |
|---|---|---|---|
| Cause 2 | Oil seal damage | Solution | Repaired at a specialized factory |
DCBL Hypoid Motor with brake
| 20 | The brakes don't work |
|---|
| Cause 1 | Wiring error | Solution | Checking the wiring |
|---|---|---|---|
| Cause 2 | Defective switch | Solution | Replacement/repair |
| 21 | The motor does not turn The motor generates abnormal heat The thermal relay operates Brake noise is loud |
|---|
| Cause 1 | Brake wiring error | Solution | Checking the wiring |
|---|---|---|---|
| Cause 2 | Large brake gap | Solution | Gap adjustment |
| Cause 3 | DC rectifier failure | Solution | Replacement/repair |
| Cause 4 | Brake coil open or short circuit | Solution | Repaired at a specialized factory |
| Cause 5 | Poor contact of the switch | Solution | Replacement/repair |
| 22 | Abnormal fever |
|---|
| Cause 1 | High braking frequency | Solution | Reduce frequency |
|---|---|---|---|
| Cause 2 | Large load torque and load inertia | Solution | Reduce the load |
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

