Table A- 8 Open Collector User Resistor Recommendations - Siemens SITRANS F FUG1010 IP65 NEMA 4X Instrucciones De Operación

Appendix
A.1 I/O Connections and Wiring
Table A- 8 Open Collector User Resistor Recommendations
User Supply
Voltage (Vdc)
5
9
12
18
24
28
36
Note
TB2-9 and TB2-11 are Open Collector Outputs that require external pull-up resistors for
operation. See table for External Supply Voltage and suggested resistor value and ratings.
Maximum current into the transistor is 100mA. Maximum Voltage is +36VDC.
NOTICE
Transistor Damage
Negative voltages with respect to ground will permanently damage transistors.
Use caution when applying power to circuit boards.
60
External Resistor
(Ohms)
270
510
680
1000
1500
1800
2400
Expected
Current Draw (mA)
18.5
17.6
17.6
18
16
15.5
15
FUG1010 IP65 NEMA 4X Quick Start
Operating Instructions, 06/2014, A5E02951527-AC
Recommended Resistor
Wattage (Watts)
1/2
1/2
1/2
3/4
1
1 1/4
1 1/4