Rockwell Automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE - Manual (Page 105)

Application Profiles for the SMC Dialog Plus Controller 4-23
Figure 4.22 Mixer with Preset Slow Speed Option
Problem: A mixing process required a soft start to prevent damage
to the mixer, as well as meet the local power requirement
for reduced voltage starting. Running the machine at
slow speed on start-up to ensure it was not binding was
desirable. The mixer would then be run at full speed.
Solution: The SMC Dialog Plus controller with the Preset Slow
Speed option was installed, allowing the mixer to be
jogged at slow speed to ensure there was no binding. The
SMC Dialog Plus controller was then set for a 22-second
soft start to meet the local reduced voltage requirement.
The Energy Saver was activated for slack production
periods. This allowed for greater control of the moto
without the expense of a variable frequency drive.
Motor Gearbox
Ribbon
Blades
480 Volts
250 HP