Pro-face LT series, Hardware Manual

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LT-4201TM/4301TM Hardware Manual
107
Analog Inputs and Analog Outputs
Overview
The rear module is equipped with:
z
2 ch Thermocouple/Temperature Probes (16-bit)
z
2 ch analog inputs (13-bit)
z
2 ch analog outputs (12-bit)
Analog Features
There are different terminal connection points for each type of analog signal.
Since current and voltage requires different adjustment values, you also need to
configure the desired type of input or output signal:
z
-10...10 Vdc voltage signal (default).
z
0...10 Vdc voltage signal
z
0...20 mA current signal.
z
4...20 mA current signal.
The temperature measurement values are converted into numeric values that can
be processed by the controller. For temperature measurements, the temperature
rear module returns the measured value in 0.1
°
C (0.18
°
F) steps.
The table shows the analog features:
DANGER
FIRE HAZARD
Use only the recommended wire sizes for I/O channels and power supplies.
Failure to follow these instructions will result in death or serious injury.
WARNING
UNINTENDED EQUIPMENT OPERATION
Do not exceed any of the rated values specified in the following tables.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
Number and Type of
Channels Digital Resolution Voltage/Current
2 ch inputs 13 bit -10...10 Vdc (digital value -4096 to 4095)/
0...10 Vdc (digital value 0 to 8192)
0...20 mA (digital value 0 to 8192)/
4...20 mA (digital value 0 to 8192)
2 ch inputs 16 bit RTD (Resistance Temperature Detector):
Pt100/Pt1000/Ni100/Ni1000
Thermocouple: J, K, R, B, S, T, E, N
2 ch outputs 12 bit -10...10 Vdc (digital value -2048 to 2047)/
0...10 Vdc (digital value 0 to 4095)
0...20 mA (digital value 0 to 4095)/
4...20 mA (digital value 0 to 4095)