IDEC WindO/I-NV4 - Page 1529

WindO/I-NV4 User’s Manual 30-19
3 Analog I/O Modules
30
Expansion Modules
■ Thermistor settings
When NTC Thermistor is selected as Signal Type for the FC6A-J8CU1 or FC6A-J8CU4, the following parameters
must be set.
The characteristic of NTC Thermistor is the resistance decreases as the temperature rises. The analog modules
measure the resistance of the thermistor and calculate the temperature based on above three parameters.
The measurable range of the resistance of NTC Thermistor is 100 Ω to 200,000 Ω. The range of temperature that can
be calculated is -90°C to 150°C. Select NTC Thermistor that functions within those ranges.
■ Data
Data refers to the input analog values converted to digital values at the interval of the sampling time.
The data is not guaranteed when the Satus is a value other than "0". For details on when PTC Thermistor
(threshold) is selected as Signal Type, refer to “ PTC Thermistor (Threshold)” on page 30-21.
*1 When the Sampling Time is set to 30 milliseconds, the modules may be more easily affected by commercial power supply
noise (50/60 Hz noise) and fluctuations in input values may become larger. If there are large fluctuations in input values,
change the Sampling Time to 120 milliseconds.
*2 Information are described in the instruction sheet for the thermistor to use.
FC6A-J4CN1
FC6A-J4CN4
0 to 10V DC 100 msec or 10 msec
-10 to +10V DC 100 msec or 10 msec
0 to 20mA DC 100 msec or 10 msec
4 to 20mA DC 100 msec or 10 msec
Thermocouple 104 msec
Resistance thermometer 104 msec
FC6A-J4CH1Y
FC6A-J4CH4Y
Thermocouple
120 msec or 30 msec
*1
FC6A-J8CU1
FC6A-J8CU4
Thermocouple 104 msec
NTC Thermistor, PTC Thermistor 104 msec
PTC Thermistor (threshold) 104 msec
Ohm meter 104 msec
FC6A-L06A1
FC6A-L06A4
0 to 10V DC 1 msec or 10 msec
-10 to +10V DC 1 msec or 10 msec
0 to 20mA DC 1 msec or 10 msec
4 to 20mA DC 1 msec or 10 msec
FC6A-L03CN1
FC6A-L03CN4
0 to 10V DC 100 msec or 10 msec
-10 to +10V DC 100 msec or 10 msec
0 to 20mA DC 100 msec or 10 msec
4 to 20mA DC 100 msec or 10 msec
Thermocouple 104 msec
Resistance thermometer 104 msec
Type Signal Type Sample Time
Parameter Description Range
R0
The thermistor resistance in "T0" °C (Ω)
*2
0 to 65,535
T0
Temperature (°C)
*2
-32,768 to 32,767
B
Thermistor B constant
*2
-32,768 to 32,767