Siemens sitrans f Handbuch Seite 37

①
②
③
Figure A-2
Isolated 4-20mA Output TB1-1/2
R = 250 Ω typical, 750 Ω maximum
V
c
I = 4-20mA
R
L
PULSE OUTPUT TB1-14 / TB1-15
V = +30 VDC max.
c
R
L
FST020 IP65 NEMA 4X
Operating Instructions, 07/2010, A5E03086489-01
4 - 20 mA Output (current source)
Relay Output
Digital Input (NO TOT)
Typical TB1 Wiring
= 24 VDC typical / 30 VDC max.
= Loop wire resistance (both ways) plus User's input load resistance.
= 3K Ω minimum
A.1 I/O Connections and Wiring
④
Digital Input - (CLR TOT )
⑤
Pulse Output
Appendix
35