Siemens SITRANS FST030 - Page 43

Connect wires
Note
Additional load resistor
Depending on the internal load of an externally connected device, an additional load resistor
might be required, for the pulse, status and frequency functions to work properly,
1. Remove cap and ferrule from cable gland and slide onto cable.
Wall mount enclosure: Remove blind plug and fit cable gland.
2. Push cable through open gland and cable path.
3. Restore ferrule and tighten cap to lightly hold cable in place.
4. Fold signal cable screen back over outer sheath and ground beneath cable clamp.
In case of shielded cables, use metal cable glands for proper connection.
5. Connect wires to terminals using a screwdriver.
Note
The terminal box is detachable
For easier access unplug the terminal box. After connecting the wires, plug the terminal box
back in.
6. Tighten cable gland.
The numbers in the graphics below refer to table Preparing for the connections (Page 40)
If connected as input or output (channels 2 to 4)
)




)




Active configuration Passive configuration
⑫ - ⑬ -
⑪ + ⑫ +
Termination example for channel 3
Connecting
5.5 Transmitter power supply, communications and I/Os connection
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 43