Rockwell Automation 150 USE MN/SMC DIALOG + CONTROLLER - Manual (Page 24)

1-14 Product Overview
Figure 1.14 Preset Slow Speed Option
Control Options (cont.) SMB

Smart Motor Braking Option
This option can be used in applications that require reduced stopping
times. The SMC Dialog Plus controller incorporates a
microprocessor-based system that applies braking current to a
standard squirrel cage induction motor without any additional
equipment. This option offers a user-adjustable braking current
setting from 0% to 400% of the motor’s full load current rating.
Further, it provides automatic shut-off at zero speed detection.
Figure 1.15 SMB Smart Motor Braking Option
Forward
15% – High
7% – Low
10% – Low
20% – High
Reverse
Run Start Time (seconds)
!
ATTENTION: Slow speed running is not intended for
continuous operation due to reduced motor cooling.
Start
Motor
Speed
100%
Run
Automatic Zero Speed
Shut-off
Brake
Smart Motor Braking
Coast-to-rest
Time (seconds)