Power Connection - Emerson E2 Installation And Operation Manual

S2
2 3 4 5 6 7 8
1
ON
INPUTS 1-8
S1
1 2 3 4 5 6 7 8
ON
INPUTS 9-16
Figure 9-2
- Input Type Dip Switches for MultiFlex 16 and 16AI
Boards
Figure 9-3
- Input Board Power Sources
Input boards may supply 12VDC or 5VDC. To connect
to one of the DC power sources, simply connect the sen-
sor's power wire to one of the terminals.
The maximum current that may be drawn from the
+12VDC terminal is 100 milliamps. The maximum cur-
rent that can be drawn from all three +5VDC terminals
COMBINED is 50 milliamps.
NOTE: For 24VAC sensors, a separate trans-
former must be used unless specified other-
wise in Table 9-1 on page 9-3.
Specific wiring instructions for each type of sensor are
given in Table 9-1 on page 9-3.
•
9-2 E2 RX/BX/CX I&O Manual
9.1.2
If power is needed to operate the sensor, several termi-
nals exist on the 16AI, Multiflex boards, 8IO, that may be
used to supply DC power (see Figure 9-3 for 16AI and
MultiFlex power connections).
Set DOWN for
sensors requiring
voltage
Set UP for
sensors not requiring
voltage
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Power Connection

026-1610 Rev 12 25-APR-2011