Gearmotors and Reducers
No.5 The braking time is long, The stopping precision is bad
No.5 The braking time is long, The stopping precision is bad
Gearmotor, gearmotor with brake [Cause and countermeasure]
The braking time is long, The stopping precision is bad
Defect of the power source, wiring, or control (5.1)
Gearmotor, gearmotor with brake
| Classification No. | Cause | Countermeasure | Inspection procedure and action | Judging criterion |
|---|---|---|---|---|
| 5.1.1 | Defect of the operation of the electromagnetic switch | Replacement | Check the continuity of the electromagnetic switch and the interphase voltage of the load side | Report the interphase voltage to NISSEI CORPORATION and check whether it is within the allowable range |
| 5.1.2 | Disconnection or connection defect of the brake line | Connect the wire securely | Check continuity of the connected part | There is continuity of the connected part |
| 5.1.3 | Defect of the circuit design or wiring of the brake circuit | Review it and assembly the circuit securely | Check whether the circuit is assembled as recommended by the manufacturer | Circuit recommended in the catalog or instruction manual |
| 5.1.4 | Defect of the SSR operation of the brake circuit | Review | Check the pressure resistance value of SSR | It is equivalent to or less than the pressure resistance value written on the surface of SSR |
| 5.1.5 | Breakage of the rectifier | Replacement | Contact the manufacturer to check the continuity of each terminal of the rectifier | Contact NISSEI CORPORATION for the check method and check the appropriateness |
Defect of the brake (5.2)
Gearmotor, gearmotor with brake
| Classification No. | Cause | Countermeasure | Inspection procedure and action | Judging criterion |
|---|---|---|---|---|
| 5.2.1 | Defect of the cap | Cap adjustment | Check the gap between the armature and field with a thickness gauge | Gap amount recommended in the catalog or instruction manual |
| 5.2.2 | Burnout of the brake coil | Replacement | Measure the internal resistance of the brake | Contact NISSEI CORPORATION for the internal resistance and check whether it is within the allowable range |
| 5.2.3 | Jamming of a foreign matter | Disassembly and cleaning | Check that the shaft moves smoothly when the power source is applied to the brake | |
| 5.2.4 | Erroneous installation of the spring | Replacement | Contact NISSEI CORPORATION | Contact NISSEI CORPORATION and check that the braking torque is within the allowable range |
| 5.2.5 | Input power source abnormality | Input the specified voltage | Check the brake input voltage | Report the voltage to NISSEI CORPORATION and check whether it is within the allowable range |
| 5.2.6 | Oil is adhered to the brake lining | Disassembly and cleaning | Remove the oil | Contact NISSEI CORPORATION and check that the braking torque is within the allowable range |
| 5.2.7 | Rust | Disassembly and cleaning | Remove the rust | Contact NISSEI CORPORATION and check that the braking torque is within the allowable range |
Defect of the installation or couplings (5.3)
Gearmotor, gearmotor with brake
| Classification No. | Cause | Countermeasure | Inspection procedure and action | Judging criterion |
|---|---|---|---|---|
| 5.3.1 | The couplings spin free | Fix the couplings with the shaft | Check whether the key or mounting screws are installed securely | There is no relative sliding of the shaft connected with the output shaft by the couplings |
Defect of a load part or operating conditions (5.4)
Gearmotor, gearmotor with brake
| Classification No. | Cause | Countermeasure | Inspection procedure and action | Judging criterion |
|---|---|---|---|---|
| 5.4.1 | The inertia of the load is too large | Re-selection | Check that it is equivalent to or less than the allowable inertia load value | It is equivalent to or less than the allowable inertia load value written on the catalog |
| 5.4.2 | Opened by manual opening | Stop the opened state | Visually check whether the manual opening device is working | There is braking force if the power source is not applied. Contact NISSEI CORPORATION and check that the braking torque is within the allowable range |