
3-2
SMC Dialog Plus Smart Motor Controller
Starting Methods
The following starting methods are standard within the controller:
• Soft Start with Selectable Kickstart
• Current Limit Start
• Dual Ramp Start
• Full Voltage Start
Optional features include:
• Soft Stop
• Pump Control
• Preset Slow Speed
•SMB Smart Motor Brake
• Accu-Stop/Slow Speed with Braking
Soft Start with Selectable Kickstart
This method has the most general application. The motor is given an
initial torque setting, which is user adjustable from 0 to 90% of
locked rotor torque. From the initial torque level, the output voltag
to the motor is steplessly increased during the acceleration ramp time,
which is user adjustable from 0 to 30 seconds. If, during the voltag
ramp operation, the SMC Dialog Plus controller senses that the moto
has reached an up-to-speed condition, the output voltage will
automatically switch to full voltage.
The kickstart feature provides a boost at start-up to break away loads
that may require a pulse of high torque to get started. It is intended to
provide a current pulse of 550% of full load current and is user
adjustable from 0.0 to 2.0 seconds.
Figure 3.2 Soft Start with Selectable Kickstart
Start Run
Kickstart
Initial
Torque
100%
Percent
Voltage
Time (seconds)
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