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Connecting Field Wiring
Caution: The DXi WOB transformer is rated at 24 VAC, 50 VA. Each station output terminal is rated 24 VAC,
!
0.5A (max.) @ 77°F (25°C), and capable of operating more than one valve solenoid (typically 2 or 3).*
Ensure the current load on any output does not exceed 0.5A.
Ensure the total current load imposed on the controller
does not exceed 1.75A.
* The irrigation system hydraulic capacity must be also be capable
of maintaining adequate volume and pressure for all automatic and
manual watering operations.
To provide a field common wire, attach one wire to either solenoid
lead of all valves to be operated by the controller.
Attach a separate power wire to each remaining solenoid lead.
Label these wires for identification at the station output modules.
Use an approved waterproof splicing method to properly insulate
all valve solenoid wire connections.
Connecting Station Valves
The DXi features up to 48 direct-insertion, quick-release wire
terminals for all low-voltage wire connections. Each field output
terminal accepts a 14–18 AWG (2,08mm2 – 0,823mm2) solid-
core wire in each of two connection ports – enabling two field
wires to be connected independently to one terminal position.
Steps
Route the field wires into the controller cabinet through 2"
1.
(50mm) conduit.
Remove approximately 3/8" (10mm) insulation from the ends
2.
of each wire.
Connect the valve common wire(s) to terminal marked
3.
"VC / COM" .
Connect each valve power wire to the appropriate station number terminal. See Figure 5.
4.
Pull lightly on each wire to confirm positive retention.
5.
Ensure all exposed wiring inside the controller is taped back and properly insulated.
6.
To release, depress the small tab (nearest the wire) using a small blade screwdriver.
7.
Output Switch Operation
The 3-position switches provided on the station output module
(Figure 6) enables local control of the station and master valve output.
The switch positions are as follows:
ON – Manually activates the terminal. The terminal will remain on
until the switch is moved to the AUTO or OFF position. An indicator
LED will illuminate when the switch is on the ON position.
OFF – Shuts off the terminal. The terminal will be inoperative (for
both automatic and manual operation) while the switch is in the OFF
position.
AUTO – Enables the terminal to be automatically controlled during
automatic or manual operation.
Caution: To prevent controller damage, do not operate more
!
than six stations concurrently (1.75A total load maximum)
during either manual or automatic operation.
ON
OFF
AUTO
25 26
Figure 5
1-12
13-24
25-36
37-48
25 26
27 28 29 30
31 32 33 34
25-36
MV/
1
2
3
4
5
6
7
PUMP
1-12
Master Valve / Pump
24 VAC
Figure 6
27 28 29 30
31 32 33 34
VC/
VC/
35 36
COM
COM
37 38
39 40 41 42
43 44 45 46
37-48
VC/
VC/
8
9
10 11 12
COM
COM
13 14
15 16 17 18
19 20 21 22
13-24
ON
ON
OFF
OFF
AUTO
AUTO
VC/
VC/
COM
COM
35 36
37 38
47 48
23 24
39 40 41 42
43
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