Hitachi EHV+ Series Applications Manual page 62

Chapter 2 Specifications
(4) EH-AX8I
Specification
Current range
Number of channels
Resolution
Conversion time
Overall accuracy
Input impedance
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. 400mA at power ON)
No. Signal
name
[1] I0 +
[2] I1 +
[3] I2 +
[4] I3 +
[5] I4 +
[6] I5 +
[7] I6 +
[8] I7 +
[9] 24 VDC +
[10] I0 -
[11] I1 -
[12] I2 -
[13] I3 -
[14] I4 -
[15] I5 -
[16] I6 -
[17] I7 -
[18] 24 VDC -
Relation between analog and digital data
H0FFF
H07FF
H0000
4
Input current
EH-AX8I
4 to 20mA
12 bits
5ms maximum
±1% maximum of full-scale
Approx. 100Ω
Photo-coupler insulation
No insulation
Removable type screw terminal block (M3)
2-core shield cable (20m (65.62ft.) maximum)
100mA maximum
Diagram of Internal circuit
I0 +
I0 -
I7 +
I7 -
24VDC+
24VDC-
mA
12 20
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