IDEC MICROSmart FC6A Series, Руководство пользователя

Страница: 441 / 578

FC6A S
ERIES
MICROS
MART
U
SER
’
S
M
ANUAL
FC9Y-B1722 9-7
9: A
NALOG
I/O M
ODULES
(5) Sampling Time
Analog values are converted to digital values at the interval of the sampling time. Depending on the analog I/O module, you may
be able to change the sampling time setting.
(6) Thermistor settings
When NTC thermistor is selected for the FC6A-J8CU1 signal type, the following parameters must be set.
*1 Information are described in the instruction sheet for the thermistor to use.
The characteristic of NTC thermistor is that 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.
Type Signal Type Sample Time
FC6A-J2C1
0 to 10 V 1 ms
-10 to +10 V 1 ms
0 to 20 mA 1 ms
4 to 20 mA 1 ms
FC6A-J4A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
FC6A-J8A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
Expansion 0 to 20 mA 1 ms/10 ms
Expansion 4 to 20 mA 1 ms/10 ms
FC6A-J4CN1
0 to 10 V 100 ms/10 ms
-10 to +10 V 100 ms/10 ms
0 to 20 mA 100 ms/10 ms
4 to 20 mA 100 ms/10 ms
Thermocouple 104 ms
Resistance thermometer 104 ms
FC6A-J4CH1Y Thermocouple 120 ms/30 ms
*1
FC6A-J8CU1
Thermocouple 104 ms
NTC/PTC thermistor 104 ms
PTC thermistor (threshold) 104 ms
Resistance measurement 104 ms
FC6A-L06A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
FC6A-L03CN1
0 to 10 V 100 ms/10 ms
-10 to +10 V 100 ms/10 ms
0 to 20 mA 100 ms/10 ms
4 to 20 mA 100 ms/10 ms
Thermocouple 104 ms
Resistance thermometer 104 ms
*1 When the sampling time is set to 30 ms, 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 ms.
Parameter Description Range
R0 The thermistor resistance in "T0"°C ( Ω )
*1
0 to 65,535
T0 Temperature (°C)
*1
-32,768 to 32,767
B Thermistor B constant
*1
-32,768 to 32,767