New H7ET
PNP/NPN Universal DC Voltage Input Model Without Backlight No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)
1. Contact Input (Input by a Relay or Switch Contact)
Relay
Relay
Relay
Input
Reset
Relay
Input
Reset
or Switch
or Switch
Terminals 2 and 4 are
internally connected.
or Switch
or Switch
2. Solid-state Input
Open collector of a
PNP transistor
Open collector of a
PNP transistor
Input
Reset
or Open collector of an
NPN transistor
or Open collector of an
NPN transistor
Note: Use Relays and Switches that have high contact
reliability because the current flowing from terminals 1
or 3 is as small as approx. 10 µA. It is recommended
that OMRON's G3TA-IA/ID be used as the SSR.
2. Solid-state Input
(Open Collector Input of an NPN Transistor)
Open collector of an
NPN transistor
Input
Reset
Open collector of an
NPN transistor
Terminals 2 and 4 are
internally connected.
or Switch
Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are
functionally isolated.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
AC/DC Multi-voltage Input Model
Relay
Input
Reset
Relay
Note: 1. Residual voltage in the output section of Proximity
Sensors or Photoelectric Sensors becomes less
than 0.5 V because the current flowing from
terminals 1 or 3 is as small as approx. 10 µA, thus
allowing easy connection.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
or Switch
or Switch
or Open collector of
an NPN transistor
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