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Chapter 3, OPS1200 Hardware Interconnection
27
OPS1200 INTERCONNECT WIRING
I/O Power Input(I/O PWR INPUT)
I/O PWR INPUT is the connection for the user supplied voltage for the Digital Inputs and
Digital Outputs and should be wired to VEXT as shown in the table below. Refer to the
ACR1200 Hardware Manual for fuse location and details.
Refer to Figure 1 for connector location.
Isolated voltage (VEXT) refers to +24VDC.
WARNING
Wiring VEXT with the incorrect voltage will permanently
damage the Digital I/O circuitry. The isolated voltage (VEXT)
is +24VDC.
Note: I/O PWR INPUT is a 4-pin male circular plug.
I/O PWR INPUT
Isolated Power Connector
Usage Description Pin
N/C No Connection 1
+24VDC EXT +24VDC Isolated Voltage (VEXT) 2
GND EXT Isolated Common (GEXT) 3
N/C No Connection 4
Table 3.5 OPS1200 Isolated Power Connector