Siemens servo motor encoder damage report F31150 resolved

Siemens servo motor encoder damage report F31150 resolvedSiemens servo motor repair, Siemens motor repair

Before disassembly, the surface dust of the motor should be blown clean with compressed air and the surface dirt should be wiped clean.

⑵ Choose the work location for dismantling the motor and clean up the on-site environment.

⑶ Familiar with the structural characteristics and maintenance technical requirements of the motor.

Prepare the necessary tools (including tools) and equipment for disassembly.

In order to further understand the defects in the operation of the motor, if possible, an inspection test can be conducted before disassembly. To this end, put the motor on load for a trial run, carefully check the temperature, sound, vibration, and other conditions of each part of the motor, and test the voltage, current, speed, etc. Then disconnect the load and conduct a separate no-load inspection test to measure the no-load current and no-load loss, and keep records.

Cut off the power supply, remove the external wiring of the motor, and keep a record.

Siemens servo motor encoder damage report F31150 resolvedSiemens servo motor repair, Siemens motor repair

Servo motor maintenance encoder malfunction:

1. Encoder connection line fault: This is one of the most common types of faults, which may cause open circuits, short circuits, or poor contacts in the encoder cable. In this case, it may be necessary to replace the cable or connector and pay attention to securing the cable to avoid loosening and damage.

2. Insufficient encoder power supply voltage: This may be due to power failure or losses caused by high transmission cable resistance. In this case, it may be necessary to inspect the power supply or replace the cables.

3. Absolute encoder battery voltage drop: This situation is usually accompanied by obvious alarm prompts. At this point, it is necessary to replace the battery. If the memory of the reference point position is lost, the operation of returning the reference point must be performed.

4. Improper length of encoder cable: A cable that is too long may result in a low power supply voltage. In some cases, it may be necessary to shorten the cable or use multi-core parallel power supply.

5. Model code call error: If the wrong motor model code is used during programming, it may cause malfunctions due to poor internal connectors of the driver, abnormal switching power supply, or chip damage. In this case, it is necessary to correctly call the motor model code.

6. Driver and related faults: Poor internal connectors, abnormal switch power supply, or chip damage may also cause servo motor encoder faults. During maintenance, it is necessary to inspect the drive and its related components.

7. The encoder rotation is not flexible: it may be caused by bearing damage or blockage. It is necessary to disassemble the encoder for inspection and remove foreign objects or replace worn bearings.

8. Increased encoder error rate: This may be due to damage to the grating ruler or encoding disk. Check the status of the grating ruler and encoding disc, and whether the gap between them is appropriate. If necessary, replace or adjust them.

9. Slow response of encoder: This may be due to a malfunction in the internal circuit of the encoder. Need to check the internal circuit of the encoder and repair or replace the faulty components