Emerson 810-3013, Installation And Operation Manual

Page: 21 / 36

The Inputs I/O Board Input and Output Setup • 15
unplug the connector from the old board and
plug it into the female end of the adapter. Plug
the male end into the appropriate MultiFlex
input socket.
The connectors for points 9-12 and 13-16 on
the old board are already correctly oriented, and
may be plugged directly into the new MultiFlex
without an adapter cable.
4.1.1.3. Sensor Wiring Types
Specific wiring types are required for each
type of sensor used with Einstein 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).
4.1.1.4. 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.
The input type dip switch tells the input
board whether or not the sensor connected to the
point is a resistive type sensor. Generally, if the
sensor or transducer supplies its own voltage
signal to the point, the dip switch should be set
to the LEFT (OFF) position. If the sensor uses
variable resistance and requires voltage to be
supplied to it from the input point, set the dip
switch to the RIGHT (ON) position. Dip
switches for unused points should be set to the
RIGHT (ON) position.
The exception to this rule is for CPC’s
5VDC pressure transducers -- though they
supply their own voltage signal, the dip switch
MUST be set to the RIGHT (ON) position.
4.1.1.5. Pulse Type Inputs
The MultiFlex supports pulse accumulation
inputs such as the kind supplied by some power
transducers. Pulse accumulation inputs pulse a
voltage at a certain rate that corresponds to a val-
ue.
If your site controller is an Einstein or a RE-
FLECS BCU version 2.0 or above, you may con-
nect pulse accumulation inputs to any point on
the board.
If you have a REFLECS BCU with a version
number below 2.0, an RMCC (any version) or a
BEC (any version), you may only connect a pulse
accumulation input to a single input on the Mul-
tiFlex board.
Figure 4-2 - MultiFlex Input Adapter Cable
RIBBON CABLE
(P/N 335-2301)
FEMALE END (PLUG INPUT
CONNECTOR FROM OLD
BOARD HERE)
MALE END (PLUG INTO
MULTIFLEX
INPUT SOCKET)
POINT #1
POINT #2
POINT #3
POINT #4
POINT #1
POINT #2
POINT #3
POINT #4
Figure 4-3 - Input Type Dip Switches for 16 Board
(ON)
(OFF)