Detcon 700 Foundation Fieldbus Bridge - Manual (Page 6)

Foundation Fieldbus Bridge
700 Sensor FF Bridge IM Rev.0.0 Page 2 of 8
2.0 Installation
The Foundation Fieldbus Bridge replaces the Transient Protection Assembly in the condulet the Model 700
sensor is attached to. The condulet and the Model 700 sensor should be mounted as prescribed in the sensor’s
manual. For units that have been ordered with the Foundation Fieldbus Bridge installed, the section on
installing the FF Bridge PCA can be skipped.
2.1 Installation of Foundation Fieldbus Bridge PCA
The FF Bridge PCA replaces the Transient Protection Assembly (TPA) in the condulet attached to the Model
700 sensor. The sensor is wired to the FF Bridge PCA the same way as it is on the TPA, so no re-wiring of the
sensor connector is necessary.
P
O
W
E
R FF
B
U
S
SENSOR
G
N
D
+2
4V
G
N
D
FF
1
FF
2
Model 700 Foundation Fieldbus
MODBUS
FIELDBUS
SENSOR
PW
R
FI
E
LD
B U
S
Figure 2 Foundation Fieldbus Bridge Connections
1. Remove the power/mA output connector from the TPA if power is applied.
2. Remove the connector from the Transient Protection PCA that connects to the Model 700 sensor.
3. Remove the hardware holding the Transient Protection PCA and remove the TPA from the condulet.
4. Install the Foundation Fieldbus Bridge PCA in the condulet, using the same hardware used with the TPA.
5. Plug the sensor’s connector into the connector on the FF Bridge PCA, labeled “SENSOR”.
6. Wire the power and Fieldbus connections as described below.
2.2 Connecting the Foundation Fieldbus Bridge
The Foundation Fieldbus Bridge has separate connections for power and Fieldbus. Refer to Figure 2. Connect
24VDC to the pin labeled “+24V”on the “Power” connector. Connect the 24V Return to the same connector at
the pin labeled “GND”. The Foundation Fieldbus is connected to the connector labeled “FF BUS”. The FF
power+signal is connected to pin “FF1”. The FF ground+signal is connected to the “FF2” pin, and the FF
EMC ground is connected to the “GND” pin.
If not already plugged in, plug the connector from the Model 700 sensor into the connector labeled “SENSOR”
on the FF Bridge PCA.