Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) - Manual (Page 178)

168 Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Appendix C 1560E and 1562E Relay Control
Bulletin 1560E • Basic Control – With Controlled Stop
When wired as shown in Figure 76 , the controller operates much the same as
described above for the Standard module. The control signal uses terminal 16
instead of 17, and a “coast” stop can be achieved by opening the connection to
terminal 17.
It is more important in this configuration to integrate the control circuit of the
1560E with the existing controller, for better control of the Stop option. The
“start signal” for this scheme cannot be a slave of the main contactor, since it must
remain closed to accomplish the option stop maneuver. The SMC Flex module
can be used to control the main contactor such that it will close when a start is
initiated, and remain closed until it has sensed the motor has stopped following
an option stop maneuver.
Bulletin 1560E • DPI Control – Controlled Start only
The control scheme shown in Figure 77 allows the MV SMC Flex to be
controlled using DPI (Drive Programming Interface). (Refer to Table 16 on
page 109 for Logic Command Word bits assignment for DPI control.) This
special usage of DPI includes provisions for a “Local” mode of control as well.
With the Local-Off-Remote selector switch in the “Remote” position, and
closure of the existing starter main contactor, terminal 18 of the SMC Flex
module is energized, allowing a start command to be executed via DPI. The “Aux
#4” contact closes and serves as an interlock with the main contactor (or breaker)
in the existing starter.
As with the other control schemes, the SMC Flex module closes “Aux #1”
contact, energizing “BC” to close the bypass contactor as the motor approaches
rated speed.
Local control is enabled with the selector switch in the “Local” position. Closure
of the “Start” relay from the existing starter, allows the unit to initiate motor soft
starting.
If possible, it is better to have the SMC Flex module control the main contactor
directly. In this case, the control circuit would look like, and function like, the
descriptions above for the Bulletin 1562E.
Bulletin 1560E • DPI Control – With Controlled Stop
The control scheme shown in Figure 78 allows the MV SMC Flex to be
controlled using DPI (Drive Programming Interface). (Refer to Table 16 on
page 109 for Logic Command Word bits assignment for DPI control). This
special usage of DPI includes provisions for a “Local” mode of control as well.