Vigilantplant TDLS8000, User Manual

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<3. Installation, Wiring, Optical Axis Adjustment, and Piping>
3-18
IM 11Y01D01-01EN
CAUTION
Do not apply current exceeding the allowable value to AI. Doing so can cause a malfunction.
3.2.4 Wiring Analog Outputs (AO)
This section explains the wiring for transmitting concentration, transmission, and other analog
outputs to a recorder or other device. Only AO-1 supports HART communication.
For analog output settings, see “6.4
Analog Output Settings”.
AO-1 AI-2 AO-2 AI-1 DI-1
+
+ - + -
-
FAULT DI-2 DO
+
-
Internal
ground
terminal
Recorder 2
Sensor control unit
Terminal B
Recorder 1
l
Wiring procedure
• For the cable type to use, see “
n
Types of Wiring and Cabling”.
• Be sure to ground the cable shield on the TDLS8000 side and on the other side.
• For each output, keep the load resistance including the wiring resistance 550 Ω or less.
• During HART communication, keep the load resistance including the wiring resistance
within the allowable load resistance range specified by the HART communication
specifications, which is 250 to 550 Ω. (AO-1 only)
CAUTION
Be careful not to reverse the polarity when wiring. Doing so can cause a malfunction.
3.2.5 Wiring Digital Outputs
The following digital outputs are available. Both contacts are voltage-free dry outputs
(mechanical relay digital outputs). The contact rating is 24 V DC 1 A for both contacts.
For digital output settings, see “6.5 Digital Output Settings”.
l
DO digital output (DO)
A user-defined function can be assigned to this contact through configuration. It is a C-contact
(transfer contact) consisting of three terminals: COM, NC, and NO. It is always de-energized and
cannot be changed. The NC and NO markings on the terminals indicate the de-energized state.
3rd Edition: Jun. 10, 2016-00