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Power supply
Limit
connection
monitor
14 13 12
11 10 9
~
~
Relay output
U
+
-
H
1 to 4
Signal input (see "Sensor input connections" for possible
types of connection)
5, 6
Analog output (U or I output parameterizable using plug-in
jumpers)
7, 8
Connection with HART communication for local
parameterization
9 to 11
Output for sensor fault/limit monitor as relay contact
(see below for possible parameterization)
12
PE connection
13, 14
Power supply input (protected against reverse polarity)
Connection diagram for power supply, input and outputs
Relay output
Closed-circuit operation
(relay opens when error)
• Device switched off
• Device switched on and no error
• Device switched on and error
Open-circuit operation
(relay closes when error)
• Device switched off
• Device switched on and no error
• Device switched on and error
Dimensional drawings
Dimensions for control room mounting, rail mounting in mm (inches)
© Siemens AG 2009
SITRANS T measuring instruments for temperature
HART/
Sensor
8
7
6 5
4 3
2 1
+
-
HART
Connected terminals
10 and 11
9 and 11
10 and 11
10 and 11
10 and 11
9 and 11
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
Siemens FI 01 · 2010
3
3/49
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