Rockwell Automation 1901 SyncPro - Manual (Page 22)

3-4 Installation
1901-UM020C-EN-P – June 2013
Wiring Guidelines The SyncPro™ can accept either two- or three-wire control. The
control chosen will determine the configuration of the control
hardware. Consider the following two inputs and single output
when selecting the type of control:
• I:4/00 NOT STOP input
• I:4/01 START input
• O:3/06 RUN output
If using two-wire control, the two inputs (I:4/00 and I:4/01) are
tied together. They are both low in order to stop the SyncPro (refer
to the summary on page 3-6) and both high in order to run the
device. To start the device after a fault, the START input (I:4/01)
must be taken low and then closed again. In this configuration, the
RUN output acts as a run command. Refer to Figure 3.4.
If using three-wire control, the NOT STOP input must be
maintained high in order to run the device. Momentarily opening
this input will cause the SyncPro to stop (refer to the summary on
page 3-6). Momentarily closing the START input will start the
SyncPro (given that all permissives are satisfied). In this
configuration, the RUN output acts as a start command. Refer to
Figure 3.5.
I:4/00 NOT STOP
I:4/01 START
RUN
O:3/06 RUN CR
ESR
E-STOP O/L
O:3/01 TRIP ESR
External
I:4/07 EQUIP.
SHUTDOWN
OFF
Run Control
Circuit
Emergency
Shutdown
Circuit
I:4/00 NOT STOP
I:4/01 START
RUN
O:3/06 RUN CR
ESR
E-STOP O/L
O:3/01 TRIP ESR
External
I:4/07 EQUIP.
SHUTDOWN
OFF
Run Control
Circuit
Emergency
Shutdown
Circuit
Figure 3.4 – Two-Wire Control