Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 77)

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 77
Installation Instructions Chapter 2
For each power supply connection, follow these steps.
1. Connect the negative line from the power supply, typically labelled ‘OV’,
to the left-hand terminal.
2. Connect the positive line from the power supply, typically labelled ‘+24V’,
to the right-hand terminal.
3. Apply a minimum tightening torque of 0.5 N•m (0.37 lb•ft) to the
terminal screws.
For maximum protection, be sure that the PWR-1 and PWR-2 plugs are supplied
from independent 24V DC sources as in Figure 28 . Only having one power
supply plug connection causes a Rack Status fault status indicator to illuminate
on adapter modules.
Figure 28 - Independent Power Sources
Table 11 - Module Power Wiring Sizes
Wiring Attribute Size
Conductor cross section, stranded maximum 2.5 mm 2 (12 AWG)
Conductor cross section, solid maximum
2.5 mm 2 (12 AWG)
Stripping length 7 mm (9/32 in.)
MP-PWR-24V1
OV MP-PWR-24V2
OV
32125-M
PWR 1 PWR 2