2 SPECIFICATIONS OF INDIVIDUAL MODULES
2-40
2.36 Model LWA560 Output Module (4 to 20 mA DC Current Output,
8 Channels)
Item
Specification
Module output Current
output
Output channels
8
Insulation method Photocoupler (common to eight channels)
Rated output voltage
4 to 20 mA DC
D/A bits
11
Conversion ratio
16 mA to 2,000 in digital value (4 mA to 0)
Overall accuracy
(room temperature)
±0.2% full scale (ambient temperature from 20 to 25°C)
Overall accuracy (0 to 55°C)
±0.5% full scale
Response time
5 ms or less (resistive load)
Load resistance
500
Ω
or less
Internal
consumption
current
12 VDC
250 mA or less
5 VDC
40 mA or less
Insulation withstand voltage
500 VAC, 1 minute (between external terminal and ground)
External wiring
Connection
40-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 430
g
The overall accuracy listed above is expressed as percentages of the full
scale value of this AI module.
The external power supply must be grounded.
The loads may be used either in a grounded or a floated state.
The shielding of the cables must be grounded either on the load side or the
I/O unit side.
The cable connected to each channel is one that is shielded either
separately from or together with the cables connected to the other
channels.
C6
LWA560 AO
A.OUTPUT
DC4-20mA
HITACHI
B
S0
C0
SHD
S1
C1
S2
C2
S3
C3
S4
C4
S5
C5
S6
S7
C7
A
SHD
SHD
SHD
SHD
SHD
SHD
SHD
SHD
SHD
A1
A2
A3
A4
A5
A6
A7
A8
A9
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
Channel 0
Channel 1
Channel 6
Channel 7
Process side
LWA560
Internal
circuitry
Cubicle
ground
C0
S0
SHD
L
D/A
S1
C1
SHD
S6
C6
SHD
S7
C7
SHD
SHD
L
L
L
Load
+
-
Содержание HSC-2100
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