Power And Communication Wiring; Power Wiring; Communications Wiring; Th-Tune Power And Communications Connections - Bard W18AAPA Installation Instructions Manual

Power and Communications Wiring
See Figures 15, 16 and 17 for guidance with
connecting the power and communications wires.
Make connections according to the terminal block
labels. Damage will occur is power is applied to the
communications terminals.

Power Wiring

For the power wiring, use standard 18 gauge twisted
pair wiring. Power wires from the th-TUNE connect to
terminal blocks mounted on the left side of the control
board on the wall unit control panel.
When wiring power to the th-TUNE from the wall unit,
ensure that G0 from the wall unit terminal is wired
to the GND terminal on the th-TUNE power terminal
block, and G from the wall unit terminal is wired to the
24V terminal on the th-TUNE power terminal block.
Failure to wire these correctly will result in damage to
the PLC and th-TUNE controller.

Communications Wiring

For the communications wiring, use 3-wire 20 gauge
shielded cable. Communications wires from the th-
WALL UNIT
Tx/Rx+
Green
Communication
Tx/Rx-
G0
Orange
Power
G
Manual 2100-678C
Page 22 of 26

Wall Unit and th-TUNE Power and Communications Connections

WALL UNIT
Tx/Rx+
Tx/Rx-
G0
G

Proper Communications Connector Placement

Place Green Connector Here for
th-TUNE Operation (Fieldbus 1)
TUNE connect to terminal blocks mounted on the right
side of the control board on the wall unit control panel.
Make connections according to the terminal block label
located above the terminals.
When wiring communications for the th-TUNE, the
green communications connector plugged into the wall
unit control board will need to be moved from Fieldbus
2 to Fieldbus 1 (see Figure 17).

th-TUNE Power and Communications Connections

FIGURE 16
TH-TUNE
(see Figure 5)
GND
Rx+/Tx+
Rx-/Tx-
GND
24V~/m
MIS-3912
FIGURE 17
Green Connector Position for
LC6000 Operation (Fieldbus 2)
FIGURE 15
TH-TUNE
(see Figure 5)
GND
Rx+/Tx+
Communications*
Rx-/Tx-
* If power is connected to these
terminals, the th-TUNE will be GND
Power
damaged.
24V~/m
MIS-3912