Rockwell Automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE - Manual (Page 69)

3-32 SMC Dialog Plus Smart Motor Controller
Control Options (cont.) SMB
   
Smart Motor Braking Option
The SMB Smart Motor Braking option provides motor braking for
applications which require the motor to stop quickly. It is a
microprocessor based braking system which applies braking current
to a standard squirrel cage induction motor. The strength of the
braking current is adjustable from 150 to 400% of full load current.
Figure 3.25 SMB Smart Motor Braking Option
Start
Motor
Speed
100
Run
Automatic Zero Speed
Shut-off
Brake
Smart Motor Braking
Coast-to-rest
Time (seconds)
!
ATTENTION: Braking may cause motor heating and
equipment vibration depending on braking current,
frequency of braking, and duration of braking cycle.
Select the lowest brake current setting that will brake
satisfactorily.
!
ATTENTION: SMB Smart Motor Braking is not
intended to be used as an emergency stop. Refer to the
applicable standards for emergency stop requirements.