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Chapter 2
Specifications
(8) EH-AY4I
Specification
Current range
Number of channels
Resolution
Conversion time
Overall accuracy
External load resistance
Channel and Internal circuit
Insulation system
Between channels
External connection
External power supply
External wiring
Internal current consumption
Terminal configuration
[1]
[10]
[2]
[11]
[3]
[12]
[4]
[13]
[5]
[14]
[6]
[15]
[7]
[16]
[8]
[17]
[9]
[18]
Screw for
fixing
24V DC (+20%, -15%) Approx. 150mA (Approx. 500mA at power ON)
No.
Signal
name
[1]
I0 +
[2]
I1 +
[3]
I2 +
[4]
I3 +
[5]
N.C.
[6]
N.C.
[7]
N.C.
[8]
N.C.
[9]
24 VDC +
[10]
I0 -
[11]
I1 -
[12]
I2 -
[13]
I3 -
[14]
N.C.
[15]
N.C.
[16]
N.C.
[17]
N.C.
[18]
24 VDC -
Relation between analog and digital data
20
12
4
H0000
EH-AY4I
4 to 20mA
12 bits
5ms maximum
±1% maximum of full-scale
350Ω maximum
Photo-coupler insulation
No insulation
Removable type screw terminal block (M3)
2-core shield cable (20m (65.62ft.) maximum)
130mA maximum
Diagram of Internal circuit
H07FF
H0FFF
2 – 56
4
I0 +
I0 -
I1 +
I1 -
I2 +
I2 -
I3 +
I3 -
24VDC+
24VDC-
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