2 SPECIFICATIONS OF INDIVIDUAL MODULES
2-32
2.28 Model LWA430 Input Module (±5 VDC Voltage Input, 4 Channels)
Item Specification
Module input Voltage input
Input channels
4
Insulation method
Semiconductor-insulated flying-capacitor (each channel
insulated separately by controlling photo-MOS switches)
Rated input voltage
0 to ±5 VDC
Input voltage range ±6
V
A/D bits
12 (sign bit + 11 bits)
Conversion ratio
2,000 in digital value to 5 V
Overall accuracy
(room temperature)
±0.3% full scale (ambient temperature from 20 to 25°C)
Overall accuracy (0 to 55°C)
±0.4% full scale
Response time
45 + 5TRc ms or less (TRc: remote I/O transfer time)
45 + Rc ms or less (Rc: J.NET transfer time)
Input filter
Time constant, 0.15 s
Input impedance 1
M
Ω
or more
Internal
consumption
current
12 VDC
350 mA or less
5 VDC
50 mA or less
Insulation withstand voltage
500 VDC, 1 minute (between external terminal and ground);
500 VDC, 1 minute (between channels)
External wiring
Connection
20-point terminal block connector (Connector screw type:
M3)
Applicable
cable size
0.5 to 1.25 mm
2
Tightening
torque
0.6 to 0.8 N·m
Maximum
wiring
length
200 m (shielded twisted-pair cable)
Mass 360
g
The overall accuracy listed above is expressed as percentages of the full
scale value of this AI module.
The response time listed above does not include the delay time of the
input filter.
The cable connected to each channel is one that is shielded either
separately from or together with the cables connected to the other
channels.
This AI module can only be used with the station’s number-of-points setting set to 16.
If it is set to any other value (32 to 128), the module will not function.
The module supports only the value 16.
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
10
S0
C0
LWA430
AI
A.INPUT
DC
±
5V
HITACHI
SHD
S1
C1
SHD
S2
C2
SHD
S3
C3
SHD
GND
Channel 2
Channel 3
Channel 1
Process side
Channel 0
+
-
S0
C0
+
-
S1
C1
+
-
S2
C2
+
-
S3
C3
SHD
SHD
SHD
A/D
LWA430
Internal circuitry
Ampli
fier
C
ontr
ol c
irc
uit
SHD
SHD
Содержание HSC-2100
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