Spirax Sarco SP500 - Page 32

IM-P343-35 CTLS Issue 5
32
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TRANSLATION RUN OVER
SP500 Electropneumatic Smart Positioner
6.2.4 Travel switches- and 4-20 mA retransmission wiring digrams
Fig. 50
Software switches
2 kΩ
Travel switches 1
Table 1
Ratings Supply Impedance On current Off current
TS1 travel switch 18 - 30 Vdc
1.8 kΩ
13 mA 1 mA @ 24 V
TS2 travel switch 18 - 30 Vdc
1.8 kΩ
13 mA 1 mA @ 24 V
4 - 20 mA 8 - 30 Vdc - - -
Fig. 51
4 - 20 mA
retransmit
4 - 20 mA
retransmit
-
Example of customers external application wiring.
22 kΩ
5
6
2 kΩ
Travel switches 2
22 kΩ
7
8
9
10