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<3. Installation, Wiring, Optical Axis Adjustment, and Piping>
3-16
IM 11Y01D01-01EN
LC
VO
MS-1 MS-2
SV-1
VO(HMI)
SV-2 POW
Internal ground terminal
External ground terminal
24 V DC power supply
Sensor control unit
Terminal C
3.2.3
Connecting to Temperature and Pressure
Transmitters
This section explains the wiring for receiving current signals (4 to 20 mA DC) from a temperature
and pressure transmitters. Connect AI-1 to a pressure transmitter and AI-2 to a temperature
transmitter.
For analog input settings, see “6.3 Analog Input Settings”.
n
Connection Preparation
To supply power to the transmitters from the TDLS8000, set the switch inside the sensor control
unit to Active AI. To supply power externally, set to Passive AI. If you want to connect to a 4-wire
system pressure meter or thermometer, set to Passive AI.
The factory default setting is Passive AI.
Switch state
Applicable
switch
External
power supply
Power supply from
the TDLS8000
AI-1 (pressure signal)
SW1
Passive AI
Active AI
AI-2 (temperature signal)
SW2
Passive AI
Active AI
Active AI
Passive AI
SW1
SW2
Sensor control unit
Figure 3.15
SW1 and SW2 settings
3rd Edition: Jun. 10, 2016-00
Summary of Contents for TDLS8000
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