Rockwell Automation 1771-QB Linear Pos. - Manual (Page 51)

Installing the Linear Positioning Module
Chapter 5
5Ć12
3. Connect - VDC from your power supply to the transducer.
4. Connect the common terminal on your power supply to the +5 COMMON
terminal (10) on the module, to ground at the I/O chassis, and to the
transducer.
5. Connect the cable shields to ground at the I/O chassis end.
6. Connect the power supply chassis to ground.
Transducer Interface
After connecting the transducer power supply to the module, make the Gate and
Interrogate connections. Use a single, continuous, shielded cable segment for
these connections. Don’t break the cable for connection in a junction box, but
connect it directly from the digital interface box to the module.
To connect the transducer interface terminals:
1. Configure the transducer for external interrogation.
2. If you haven’t already configured the transducer for the optimum number
of circulations, do so now. Refer to Chapter 4 for a procedure to determine
the optimum number of circulations for your system.
3. Connect the module’s +GATE terminal (1/2) to the transducer’s +GATE
terminal.
4. Connect the module’s -GATE terminal (3/4) to the transducer’s –GATE
terminal.
5. Connect the module’s +INTERR terminal (5/6) to the transducer’s
+INTERROGATE terminal.
6. Connect the module’s -INTERR terminal (7/8) to the transducer’s
–INTERROGATE terminal.
7. Connect the cable shields to ground at the I/O chassis end.
The seven discrete inputs (for each control loop) make connections via eight
wiring arm terminals (one terminal is discrete input common). The voltage and
current requirements for the discrete inputs are:
Low 0 to 4 VDC
High 10 to 30 VDC
Input Current 8 mA @ 12 VDC
16 mA @ 24 VDC
Connecting the Discrete Inputs