Fx 2N -8Ad - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Common Items
4.1.7 FX -8AD
2N
Specifications
Number of input points
Analog input range
Absolute maximum input
Offset
Gain
Digital output
*4
Resolution
Ambient temperature:
25±5°C
Ambient temperature:
0 to 55°C
Time required for A/D
conversion
*4
Input characteristics
• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode, however, the
offset/gain cannot be adjusted.
*2. The offset and the gain should satisfy the following condition:
≤
1V (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
≤
3mA (Gain - Offset)
*4. The resolution and the input/output characteristics depend on the selected mode.
*5. If 1 or more channels use the thermocouple input(s), the input voltage/current data conversion speed will be
×
"1 ms number of selected channels."
PLC User's Manual - Analog Control Edition
Voltage input
-10V to +10V DC
(Input resistance: 200 kΩ)
±15V
*1*2
-10V to +9V
*1*2
-9V to +10V
With sign, 15 bits, binary
0.63mV (20V × 1/32000)
2.5mV (20V × 1/8000)
±0.3% (±60mV) for 20V full scale
±0.5% (±100mV) for 20V full scale
500μs × number of selected channels
When the input mode is set to "0":
+16320
+16000
-10V
0
+10V
-16000
-16320
≤
30mA
4 Comparison of Performance Specifications
FX -8AD
2N
Current input
8ch
-20mA to +20mA DC
4mA to 20mA DC
(Input resistance: 250 Ω)
±30mA
-20mA to +17mA
-17mA to +30mA
With sign, 14 bits, binary
2.50μA (40mA × 1/16000)
2.00μA (16mA × 1/8000)
±0.3% (±120μA) for 40mA full scale
Same accuracy for 4mA to 20mA input
±0.5% (±200μA) for 40mA full scale
Same accuracy for 4mA to 20mA input
*5
When the input mode is set to "6":
+8160
+8000
-20mA
0
-8000
Approx.-8160
When the input mode is set to "3":
8200
8000
0 4mA
4.1 Analog Input
A
B
*1*3
C
*1*3
D
E
+20mA
G
20mA
H
A-33
F
I
J