Xylem FST Installation, Operation And Maintenance Manual page 25

1. Passive 4-20 mA sensor
2. Active 4-20 mA sensor
3. AI1 spliced terminals of the I/O extension cable
4. AI2 spliced terminals of the I/O extension cable
5. Red wire
6. Black wire
7. Shield
Connect the float switches
Connect a float switch to the DI1 or DI2 spliced terminals of the I/O
extension cable.
NO
NC
Connect relays
As applicable, connect 120VAC, 5A device R1 and R2 spliced terminals of
the I/O extension cable.
R1 COM and NO
5 A @ 30 VDC
xA @ 120 VAC
yA @ 240 VAC
FST Installation, Operation, and Maintenance Manual
2
6
5
6
5
1
7
V+
AI2
GND
V+
AI1
GND
DI1
DI1 COM
DI2
DI2 COM
R2 COM and NO
5 A @ 30 VDC
xA @ 120 VAC
yA @ 240 VAC
4 Electrical Installation
4
3
R2 COM and NC
5 A @ 30 VDC
xA @ 120 VAC
yA @ 240 VAC
23