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Hitachi

Hitachi Industrial Equipment Systems Co., Ltd.

10 point/14 point/23 point/28 point type Input / Output Specifications

DC input (Basic units)

Item Specification
Input voltage 24 V DC
Allowable input voltage range 0 to 30V DC
Input impedance Approx. 2.8kΩ
Input current 7.5mA typical
Operating voltage ON voltage 15 V DC (min) / 4.5mA (max)
OFF voltage 5 V DC (max) / 1.5mA (max)
Input lag OFF → ON 0.5 to 20 ms (configurable)
ON → OFF 0.5 to 20 ms (configurable)
Polarity None
Insulation system Photocoupler insulation
Input display LED (green)
External connection 10-point type: fixed type terminal block
14-, 23-, 28-point types: Removable type screw terminal block (M3)
Circuit diagram DC input (Basic units)

DC input (Expansion units)

Item Specification
Input voltage 24 V DC
Allowable input voltage range 0 to 30V DC
Input impedance Approx. 2.8kO
Input current 7.5mA typical
Operating voltage ON voltage 15 V DC (min) / 4.5mA (max)
OFF voltage 5 V DC (max) / 1.5mA (max)
Input lag OFF → ON 0.5 ms or less
ON → OFF 0.5 ms or less
Polarity None
Insulation system Photocoupler insulation
Input display LED (green)
External connection 10-point type: fixed type terminal block
14-, 23-, 28-point types: Removable type screw terminal block (M3)
Circuit diagram DC input (Expansion units)

DC input (8 points / 16 points expansion units)

Item Specification
EH-D8EDR
EH-D8EDTPS
EH-D8EDT
EH-D8ED
EH-D16ED
Input voltage 24V DC
Allowable input voltage range 0 to 30V DC
Input impedance Approx. 2.8kΩ Approx. 4.8kΩ
Input current 7.5mA typical 4.8mA typical
Operating voltage ON voltage 15 V DC (min) /
4.5mA (max)
15 V DC (min) /
3.0mA (max)
OFF voltage 5 V DC (max) / 1.5mA (max)
Input lag OFF → ON 4ms (TYP) 2ms (TYP)
ON → OFF 4ms (TYP) 2ms (TYP)
Polarity None
Insulation system Photocoupler insulation
Input display LED (green)
External connection Removable type screw terminal block (M3)
Circuit diagram DC input (8point / 16point expansion units)

AC input

Item Specification
Input voltage 100 to 120V AC
Allowable input voltage range 85 to 132 V AC
50 -5 % to 60 +5 % Hz
Input impedance Approx. 14.6 kΩ (60Hz)
Approx. 17.6 kΩ (50Hz)
Input current Approx. 7mA RMS
(100V AC/60Hz)
Operating voltage ON voltage 80V AC (min) 4.5mA
OFF voltage 30V AC (max) 2mA
Input lag OFF → ON 25 ms (max) *1
ON → OFF 30 ms (max) *1
Polarity None
Insulation system Photocoupler insulation
Input display LED (green)
External connection 14-, 28-point types: Removable type screw terminal block (M3)
Circuit diagram AC input
*1
Delay by hardware only. Delay by digital filter (software filter) 0.5 to 20 ms is not included.

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