CPC MultiFlex PAK, User Manual

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10 • MultiFlex I/O Board Operator’s Guide 026-1712 Rev 3 03-JAN-2008
4.1.2. The PAK Default
Input Assignments
4.1.3. Connecting Sensors to Input
Boards
Wiring a sensor to the input points on a Mul-
tiFlex board requires three steps:
1. Connect the sensor’s signal wires to the two
terminals of an input point.
2. Set the input type dip switch that corre-
sponds to the point being connected.
3. If necessary, connect the sensor to one of the
5V or 12V power terminals.
4.1.3.1. Wiring
An input point on a MultiFlex board consists
of two terminals, as shown in Figure 4-1 . One of
these terminals, labeled “SIG,” reads the signal
from the sensor, while the other, labeled “0v” is
where the sensor’s ground and/or cable shield
wire is connected.
4.1.3.2. Sensor Wiring Types
Specific wiring types are required for each
type of sensor used with E2 or RMCC.
All Analog Temperature Sensors and Air Flow Sen-
sors
Temperature and air flow sensors are to be
wired with shielded, 2 conductor, at least 22 GA
wire (Belden # 8761 or equivalent).
All Pressure Transducers, Humidity Sensors, and Re-
frigeration Transducers
Pressure and refrigeration transducers and
humidity sensors are to be wired with shielded, 3
conductor, at least 22 GA wire (Belden #8771 or
equivalent).
Dew Point and Light Level Sensors
These sensors are to be wired with shielded,
4 conductor at least 22 GA wire (Belden # 8729
or equivalent).
4.1.3.3. Input Type Dip Switches
Each MultiFlex input point has an input type
dip switch that must be set. Input type dip
switches are located in the switch banks labeled
S1 and S2.
Analog Input # Definition
1 Suct Xdcr
2 Disch Xdcr
3 Amb Temp 1
4 Amb Temp 2
5 Suct Temp
6 Comp Amps
7 Cond Amps
8 Liq Level
9 DischTemp 1
10 DischTemp 2
11 DischTemp 3
12 DischTemp 4
13 DischTemp 5
14 DischTemp 6
15 DischTemp 7
16 DischTemp 8
Table 4-2 - MultiFlex PAK Default Inputs
Figure 4-1 - Input Board Points