This is an attempt to explain the trim pot settings in a KB Motor Control.

  • Decel - Adjusts deceleration time to go from full speed to stop (Ramp-Down Time).
    (Average Setting – 10:00 to 10:30 o'clock).
  • Accel - Adjusts acceleration time to go from stop to full speed (Ramp-Up Time).
    (Average Setting - 1:00 o'clock).
  • Max - Adjust the maximum amount of voltage allowed for the motor control to send to the motor.
    (Average - 1:00 o'clock)
  • Min - This is the pot to set first. Make sure main speed pot is set to zero. With machine in stop mode, this gets turned up until the motor starts turning and then turned down until the motor stops turning with no noise.
    (Average Setting - 9:30 o'clock)
  • CL (Current Limit) - Adjusts the maximum amps that goes into the motor control. This setting serves to protect the motor and control against overloads. (Average Setting – 12:30 to 1:00 o'clock)
  • IR Comp - this stabilizes the motor control to prevent surging, compensates for variation in amps to the motor control and voltage out to the motor. Designed to improve load regulation for varying changes in load on the motor, provides minimal speed changes as load changes. NOTE: This gets turned all the way down for Constant Speed Control machines.
    (Average Setting - 9:30 to 10:00 o'clock) (for constant speed machines, turn all the way down to zero).
  • Jog - Use the factory setting of 5:00 o'clock (when control is in upright position)

These settings are adjusted at the factory and tuned to provide optimal output and service.