Rockwell Automation 1771-QB Linear Pos. - Manual (Page 59)

Installing the Linear Positioning Module
Chapter 5
5Ć20
The two discrete outputs for each loop are powered by the discrete output power
supply. The characteristics of the discrete outputs are:
Low no voltage applied to the output
High output supply voltage applied to output
Maximum Current 100 mA
Voltage Drop 1.6 VDC maximum (at 100 mA) between the disĆ
crete output power supply (terminal 40) and the
discrete outputs
Power for the OUTOUT 1 and OUTPUT 2 discrete outputs comes from the
discrete output power supply through terminal 40 on the module wiring arm.
The return for the load driven by OUTOUT 1 or OUTPUT 2 connects to the
common of the discrete output power supply.
Figure 5.12 shows a typical discrete output connection.
Figure 5.12
Discrete Output Connections
*The discrete outputs can be connected to inputs of other
modules provided that the current does not exceed 100mA.
50050
OUTPUT 1
OUTPUT 2
O/P SUPPLY
Wiring Arm
Terminals
36
38
40
LOOP 2
37
39
LOOP 1
OUTPUT 1
OUTPUT 2
LOADS*
5 to 30 VDC
Discrete Output
Supply
(Customer Supplied)
+ -
Ground the shield at
the I/O chassis end.
LOADS*
2
2
2
2 Belden 8761 or equivalent (50 ft. max.)
Connecting the Discrete
Outputs