LEESON SM Series Sub-Micro Inverters - Manual (Page 41)

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P22 DC BRAKE VOLTAGE
This sets the magnitude of the DC braking voltage, in percentage of the line voltage. The point at which
the DC braking is activated depends on the selected STOP METHOD (Parameter 04):
If COAST WITH DC BRAKE is selected, the DC braking is activated after a time delay of up to 2
seconds, depending on the output frequency at the time of the STOP command. In this case, the DC
braking is the only force acting to decelerate the load.
If RAMP WITH DC BRAKE is selected, braking is activated when the output frequency reaches 0.2 Hz.
In this case, the drive decelerates the load to a near stop and the DC braking is used to bring the load to
a final stop.
P23 MINIMUM FREQUENCY
This sets the minimum output frequency of the drive for all speed reference sources except the PRESET
SPEEDS (Parameters 31-37), and is used with MAXIMUM FREQUENCY (Parameter 24) to define the
operating range of the drive.
When using an analog speed reference (0-10 VDC or 4 mA), Parameters 45 and 46 (SPEED AT MIN
SIGNAL and SPEED AT MAX SIGNAL) also affect the drive’s speed range.
NOTE: If this parameter is changed while the drive is running, the new value will not take effect
until the drive is stopped.
P24 MAXIMUM FREQUENCY
This sets the maximum output frequency of the drive for all speed reference sources, and is used with
MINIMUM FREQUENCY (Parameter 23) to define the operating range of the drive.
When using an analog speed reference (0-10 VDC or 4-20 mA), Parameters 45 and 46 (SPEED AT MIN
SIGNAL and SPEED AT MAX SIGNAL) also affect the drive’s speed range.
NOTE: If this parameter is changed while the drive is running, the new value will not take effect
until the drive is stopped.
P25 CURRENT LIMIT
This sets the maximum allowable output current of the drive. The maximum setting is either 180% or
150%, depending on whether LINE VOLTAGE SELECTION (Parameter 01) is set to HIGH or LOW.
If the load demands more current than the CURRENT LIMIT setting, the drive will reduce the output
frequency in an attempt to reduce the output current. When the overcurrent condition passes, the drive
will accelerate the motor back up to the speed setpoint.