Rockwell-automation 150 SMC-Flex User Manual Manual de usuario Pagina 10

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1-2 Product Overview
Operation The SMC-Flex controller can operate standard squirrel-cage
induction motors rated 1…1250 A or Star-delta (wye-delta) type
motors rated 1.8…1600 A; up to 690V AC, 50/60 Hz. Depending
upon the controller type ordered, the control power input can range
from 100…240V AC to 24V AC/DC. Please verify voltage on
product, before applying power.
Modes of Operation (Standard) Soft Start
This mode has the most general application. The motor is given an
initial torque setting, which is user-adjustable from 0…90% of locked
rotor torque. From the initial torque level, the output voltage to the
motor is steplessly increased during the acceleration ramp time. The
acceleration ramp time is user-adjustable from 0…30 seconds. If the
SMC-Flex controller senses that the motor has reached the up-to-
speed condition during the voltage ramp operation, the internal
bypass contactor will be pulled in.
Figure 1.1 Soft Start
Kickstart is also available with Soft Start.
Percent Voltage
100%
Initial
Torque
Time in Seconds
Start
Run
Ramp Time
Current Limit
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