ABB PSTX Series Installation And Commissioning Manual page 47

2-wire measurement for PT100
When you use 2-wire temperature sensors, the sensor
resistance and the wire resistance are added. Correct
for the resulting systematic errors when you change the
tripping device. Connect a jumper between the terminals
26 and 27. Use Table 1 Temperature errors in C°/K
to determine the temperature errors caused by the line
length. See Figure 5.23
Tightening torques and cable dimensions.
Com 3 Temp In
+(B) -(A) T1 T2 T3
23 24 25 26 27
Analog out
+24V + GND
28 29 30
1SFC132081M0201
PT 100 - 2 wire
Figure 5.23
PT100 - 2 wire
3,5 x 0,6 mm
M3
(0.138 x 0.024 in)
0,5 Nm
4,3 lb.in
| Installation and commissioning manual | Connection
Com 3 Temp In Analog out
+(B) -(A) T1 T2 T3 +24V + GND
23 24 25 26 27 28 29 30
AWG 12 ... 24
2
0,2 .. 2,5 mm
2
2x0,2 .. 1,5 mm
2
0,2 .. 2,5 mm
2
2x0,2 .. 1,5 mm
47
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