Special application considerations, Attention – Rockwell Automation 150 SMC-Flex User Manual User Manual
Page 80
3-36
Wiring
Figure 3.34 Slow Speed with Braking Sequence of Operation
Special Application Considerations
Use of Protective Modules
A protective module (see Figure 3.35) containing metal oxide
varistors (MOVs) can be installed to protect the power components
from electrical transients and/or electrical noise. The protective
modules clip transients generated on the lines and prevent such surges
from damaging the SCRs.
100%
Up-to-Speed
Normal
Slow Speed
Stop
Motor Speed
Push Buttons
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Start
Auxillary Contacts
Closed
Open
SMB
(Stop Option )
Br
a
ke
If the Co
as
t-to-Re
s
t
i
s
S
elected
Co
as
t-to-
S
top
Br
a
king
Br
a
ke
Time in Seconds
Run
Start
Slow Speed
Brake
Co
as
t
3
1
2
Coast
ATTENTION
!
The user is responsible for determining which
stopping mode is best suited to the application and
will meet applicable standards for operator safety
on a particular machine.
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