Rockwell Automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE - Manual (Page 33)

2-14 SMC-2 Smart Motor Controller
Applications (cont.)
Figure 2.16 Towline Conveyor with Soft Start and Soft Stop Option
Problem: A towline conveyor at the end of a production line had
frequent damage to the gearbox due to the starting torque
from across-the-line starting of the motor. There were
frequent spills on both starting and stopping of the
conveyor system.
Solution: The SMC-2 controller with the Interface option was
installed. Starting and stopping times of 15 seconds were
selected. The reduced torque starting prevented shock to
the gearbox and kept the load from shifting on start-up.
The soft stop prevented the load shifts while stopping.
The SMC-2 controller met the application requirements
and was a cost effective solution.
Load Load
Pallet
Gearbox
Motor
480 Volts
15 HP