3-10
3.4.1 Wire
Connections
1. For the NEMA4 housing enclosure punch a hole in one of the perforated circles at
the bottom of the RTU housing and insert the wires through the opening.
For the NEMA4X housing enclosure use the existing holes located at the bottom of
the housing.
2. To operate AC Solenoids an external 24 VAC Power Transformer (75VA) must be
connected to the I/O-AC Module as shown in Figure
External Transformer Connections:
3. Connect the primary inputs of the transformer to the AC Mains.
115 VAC to Black and White wires.
230 VAC to Brown and Blue wires.
4. Connect the secondary outputs of the transformer to the I/O-AC module.
+VAC to pin 1 or 2 (Red wire if using Motorola option V240 or V260).
-VAC to pin 3 or 4 (Green wire connected to protective ground strip if using
Motorola option V240 or V260).
5. Connect all I/O wires to the mating connector according to your settings in the Site
Configuration Program in the Programming Tool Box (see Figure
3-6).
Ensure that the mating connector with connections #1 - #10 is inserted into the
upper TB and that the mating connector with connections #11 - #20 is inserted into
the lower TB of the module.
N
N
o
o
t
t
e
e
:
:
To comply with CE and FCC standards a ferrite
(p/n: FLN9448) must be clamped onto the I/O wires.
Refer to
CHAPTER 6 for assembly instructions.
6. Use the ID label card to record the TB pin connections.
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