Rockwell Automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE User Manual
Page 36
SMC-2 Smart Motor Controller
2-17
Figure 2.19 Passenger Elevator
Problem: A passenger elevator in a parking structure required a soft
start to eliminate the jolt which occurred during an
across-the-line start. Due to the size of the enclosure, the
soft starter must fit in the space vacated by the
electromechanical motor starter.
Solution: An SMC-2 controller with the Interface option was
installed. The starting time was set for 10 seconds. This
reduced the starting torque and eliminated the jolt during
the start. The Interface option allowed all control wiring
to be connected directly to the SMC-2 controller, thereby
eliminating the need for the electromechanical motor
starter. The small size of the SMC-2 controller allowed it
to fit easily into the space vacated by th
electromechanical motor starter.