119
13
Options
119
Options
Chapter
13
D/A resolution
D/A converter resolution is 1/10000 to 0 to ±10V.
Minimum unit of voltage is
(+10- (-10V)) x 1/10000 = 2mV.
Minimum unit of indicated value is
(D/A full scale setting value - D/A zero setting value) x 2 x 1/10000.
■
Current output (DAI option)
This converter is used for obtaining an analog output linked with indicated values of the F325.
The analog output range is current output 4 to 20mA.
Analog output of 4mA to 20mA can be obtained with respect to arbitrary digital values set by
D/A zero setting and D/A full scale setting functions.
Also, the output circuit and main unit circuit are isolated.
Current output:
4 to 20mA (input resistance 500
Ω
or less)
D/A conversion rate:
According to sampling rate
Resolution: 1/10000
Over range:
3.2 to 20.8mA
Zero-adjust range:
Approx. 3.6 to 4.4mA (at the time of zero output)
Gain adjust range
Approx. 19.6 to 20.4mA (at the time of full-scale output)
Zero drift:
0.5
μ
A/
℃
or less
Gain drift:
50ppm/
℃
or less
Non-linearity: 0.05
％
FS or less
* Drift of analog input is not included
Output connector:
M3 screw type terminal block
* Conforming crimping terminal 5.9mm or less
Tightening torque
0.6N
・
m
Zero adjust trimmer
This trimmer adjusts voltage output to zero
when a value registered in D/A zero setting is
displayed.
The zero adjust range is approx. 3.6 to 4.4mA
(at the time of zero output).
Gain adjust trimmer
This trimmer adjusts voltage output to a
display registered in D/A full scale setting.
The gain adjust range is approx. 19.6 to
20.4mA (at the time of full-scale output).
Current output terminal
This terminal is used for
extracting current signals.
CUR. is signal, and GND is ground.
4 to 20mA can be obtained.
CUR. GND
ZERO GAIN
