GE VAT20 Instruction Manual page 30



  
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7) 7) 8 8   ,
 
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7) 8 (9 7)
8 (9       : :
NOTE 1:
When Jog frequency or Sp1 frequency is
switched on, the frequency is setup by Sp1
speed, the


buttons on the keypad is
disabled. Original setting will be restored after
Sp1 connection is OFF.
NOTE2 :
During the acceleration
instruction and the acceleration/deceleration
after Sp1 change the buttons on keypad is
disabled.

     * .

  * .   +
Fn_12
1
2
3
Although IGBT TYPE inverter can provide low noise environment under operation, it is possible
that the slicing of high carrier frequency may interfere with external electronic components (or other
controller) or even cause vibration driving motor. Adjusting carrier frequency can correct this
situation.

  7 .

  7 .   
Inverter output according to the B, C point voltage on the V/F pattern (refer to Fn_05 description)
plus the Fn_13 settings to enhance the output torque
NOTE : When Fn_13 = 0, the torque boost function is disabled.
    
      
    
      
, # #   9 
9   : :
    
      
after operating
carrier frequency
4 kHz
5 kHz
6 kHz
     
         ;
  4 4 5 
5 
  4 4 , , & & 
  4 4 , , & & 
+
Fn_12 carrier frequency
4
5
 ;
23
     

     

7.2 kHz
8 kHz