New H7ET
13
Relay
No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)
AC/DC Multi-voltage Input Model
PNP/NPN Universal DC Voltage Input Model Without Backlight
1. Contact Input (Input by a Relay or Switch Contact)
2. Solid-state Input
Relay
Input
Reset
Relay
or Switch
or Switch
Input
Reset
Relay
Relay
Input
Reset
or Switch
or Switch
or Switch
Input
Reset
Relay
Input
Reset
Relay
or Switch
or Switch
Open collector of a
PNP transistor
Open collector of a
PNP transistor
or Open collector of an
NPN transistor
or Open collector of an
NPN transistor
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
µ
A
or Open collector of
an NPN transistor
Terminals 2 and 4 are
internally connected.
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
µ
A. 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
Open collector of an
NPN transistor
Terminals 2 and 4 are
internally connected.
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
µ
A, thus
allowing easy connection.
2.
Select input transistors according to the following:
Dielectric strength of the collector
≥
50 V
Leakage current < 1
µ
A
