GE AF-300 ユーザーズマニュアル

 

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Table 8-2-1  Periodic inspection list 

Check part 

Check item 

How to inspect 

Evaluation criteria  

Environment 

1)  Check the ambient air tem-

perature, humidity, vibration, 
atmosphere (dust, gas oil mist, 
waterdrops) 

2)  Are foreign matter or dangerous 

objects such as tools not left 
around the equipment? 

1)  Measure by visual 

inspection and the 
meter. 

2)  With visual in-

spection 

1)  The specified standard 

value must be satisfied. 

2)  No foreign matter or 

dangerous objects left 
near the drive? 

Voltage 

Are the voltages in the main circuit 
and the control circuit normal? 

Measure with the mul-
timeter. 

The specified standard value 
must be satisfied. 

Keypad panel 

1) Is the display hard to read? 
2) Are the characters complete? 

1), 2)  Visual    
        inspection 

1),2) The display can be 
read and is not abnormal. 

Structure such as a 
frame or cover 

1) Abnormal sound or vibration? 
2) Loose bolts (part to be  
    tightened) ? 
3  Deformation or damage? 
4) Discoloration by  
    overheating? 
5) Stains and dust? 

1) With Visual  
  inspection and hearing 
2) Tighten more 
3), 4), 5)  With  
    visual inspection 

1), 2), 3), 4), 5) 
  Not abnormal. 

Common 

1) Loose and missing bolts? 
2) Deformation, cracks, damage,    
    and discoloration by  
    overheating and  
    deterioration in the  
    equipment and the insulation? 
3) Stains and dust? 

1) Tighten more 
2), 3) Visual  
       inspection 

1), 2), 3): 
      Not abnormal. 
 
Note: A discolored short-
circuiting bar does not indi-
cate a problem. 

Conductor 
and wire 

1) Discoloration and distortion  
    of a conductor by overheating? 
2) Cracks, crazing, and  
   discoloration of the wire  
   sheath? 

1), 2) Visual    
       inspection 

1), 2)  Not abnormal. 

Terminal 
block 

Not damaged? 

Visual inspection 

Not abnormal. 

Main circuit

 

Smoothing 
capacitor

 

1) Electrolyte leakage,  
   discoloration, crazing, and  
   swelling of a case? 
2) Is a safety valve not out, and  
   are any valves protruding   
   excessively? 
3)  Measure the  
   capacitance if necessary 

1), 2) Visual  
       inspection 
3) Measure using the  
    capacitance  
    measuring  
    instrument (Note) 

1), 2)  Not abnormal. 
3) The capacitance is  
  initial value x 0.85 or 
  more.