AKD User Guide | 8 Configuring Motor Settings
8.8.4 Motor Peak Current Time
Peak current (MOTOR.IPEAK) along with coil thermal constant (MOTOR.CTFO) are used to determine the max-
imum time the motor can sustain peak current. The maximum time (IL.MFOLDD) is displayed in the Foldback
screen as shown below:
8.8.5 Motor Foldback Ramp
Once the maximum time for motor peak current has elapsed, if the move profile still demands peak current from
AKD, the drive will exponentially lower the current applied to the motor. The Time Constant (IL.MFOLDT) dic-
tates the profile. A smaller time constant represents a steeper decline in current applied to the motor.
74 Kollmorgen | December 2010
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