Motor soft starts are designed for AC induction motors. Soft starting is a method of reduced voltage starting that provides smooth, stepless acceleration that greatly reduces wear on power transmission components. Soft starting reduces motor in rush current by as much as 70%.
These Solid State Motor Controls have adjustable starting torque, ramp time and flex time. The flex time adjustment takes up the slack in conveyor systems and and also adjust the the starting ramp time on lightly loaded motors. Optionally available deceleration control adjusts perfect stopping utilizing three potentiometers that control instantaneous deceleration, deceleration time and the stopping point.
Solid State Motor Controls Features:
Solid state circuitry
Adjustable starting torque
Adjustable ram time and dual ramp
Adjustable current limit
Anti oscillation circuit
Adjustable flex time
Motor circuit protector or overload relay
Solid State Motor Controls Specifications and Design Capabilities
Voltages. . . . . . . . 208, 240, 277, 380, 415, 480, 575, 600.
HP Rating. . . . . . . .1 /2 t0 1000
Power Circuit. . . . . .3 SCR's or 6 SCR's
SCR PIV rating. . . . . 208 to 4801200 575 to 6001500
Phase Insensitivity. . .Unit operates with any phase sequence
Overload capacity. . . .Continuous 115% 60 Seconds 500%
Auxiliary Contacts. . . one Form C .5 amp at 120 volts
Standard Adjustments. . Starting Torque 0 to 100%, Starting Ramp time 0 to 30 or 0 to 60 seconds, Flex Time 0 to 6 seconds
Options. . . . . . . . .Start deceleration 0 to 100%, Deceleration Ramp Time 0 to 30 seconds, Stop Level 0 to 100%, Current Trip 50 to 200% or 200 to 1000%, Delay Time 0.25 to 3 Seconds