Emerson E2 operation manual Power Connection

S2
1	2	3	4	5	6	7	8
ON
	INPUTS 1-8

S1
1	2	3	4	5	6	7	8
ON
	INPUTS 9-16

Set DOWN for sensors requiring voltage

Set UP for

sensors not requiring voltage

26501070

9.1.2Power Connection

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 9-3for 16AI and MultiFlex power connections).

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 026-1610 Rev 13 14-SEP-2011