Starting and stopping methods, Automatic restart upon power restoration, Line starting and line stopping – LEESON Chassis Mount PWM Control: 175292.00 User Manual
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Starting and stopping methods
Warning!
Decelerating to minimum speed or coasting to a stop is
recommended for frequent starts and stops. Do not use any of
these methods for emergency stopping. They may not stop a
drive that is malfunctioning. Removing DC line power is the
only acceptable method for emergency stopping.
For this reason, LEESON strongly recommends installing
an emergency stop switch (see figure 7, page 13).
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Frequent decelerating to minimum speed produces high torque.
This may cause damage to motors, especially gearmotors that are
not properly sized for the application.
Automatic restart upon power restoration
All drives automatically run to set speed when power is applied.
Line starting and line stopping
Line starting and line stopping (applying and removing DC voltage
input) is recommended for infrequent starting and stopping of a
drive only. When DC voltage input is applied to the drive, the motor
accelerates to the speed set by the speed adjust potentiometer.
When DC voltage input is removed, the motor coasts to a stop.
Operation