kb-electronics kbvf multi-speed board Manuel D’Utilisation
“The Right Control for Your Application.”
12095 NW 39 Street, Coral Springs, FL 33065-2516
KB Electronics, Inc.
Telephone: 954-346-4900; Fax: 954-346-3377
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(A42136) - Rev. B00 - 11/02/2004 - Z3269B00
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Motor frequency is selected using J1 (50/60Hz) on the MSB and J2 (X1, X2) on the KBVF. The control is factory set to operate 60
Hz motors (J1 is factory set to the "60Hz" position and J2 is factory set to the "X1" position). See Figure 3. To operate 50 Hz
motors, set J1 to the "50Hz" position. (Be sure that J2 is set to the "X1" position.) See Figure 9.
Hz motors (J1 is factory set to the "60Hz" position and J2 is factory set to the "X1" position). See Figure 3. To operate 50 Hz
motors, set J1 to the "50Hz" position. (Be sure that J2 is set to the "X1" position.) See Figure 9.
Overspeed Mode: To operate 60 Hz motors up to 120 Hz, be sure that J1 is set to the "60Hz" position and set J2 to the "X2"
position. To operate 50 Hz motors up to 100 Hz, set J1 to the "50Hz" position and set J2 to the "X2" position.
position. To operate 50 Hz motors up to 100 Hz, set J1 to the "50Hz" position and set J2 to the "X2" position.
Note: In Overspeed Mode, the motor will produce full rated torque up to the motor’s rated frequency. Operating the motor above it’s
rated frequency will linearly reduce the motor torque to 50% at full output frequency (120 Hz for 60 Hz motors and 100 Hz for 50 Hz
motors).
rated frequency will linearly reduce the motor torque to 50% at full output frequency (120 Hz for 60 Hz motors and 100 Hz for 50 Hz
motors).
Figure 9 - Motor Frequency Selection
Motor Frequency Rating
J1 on the MSB
J2 on the KBVF
60 Hz *
50 Hz
120 Hz
100 Hz
* Factory setting.