h3rn-21 Omron Corporation, h3rn-21 Datasheet - Page 3

• Manufacturer Part Number: h3rn-21
• Description: Solid-state Timer
• Manufacturer: Omron Corporation

Connections
■ Connection
Pulse Operation
A pulse output for a certain period can be obtained with a random external input signal.
Use the H3RN in interval mode as shown in the following timing charts.
H3RN-1/H3RN-11
H3RN-2/H3RN-21
Pulse operation
Operating mode; interval and all other
modes
Be careful when connecting wires.
!Caution
Bottom View
OUT
Timer
circuit
PW
Timer
circuit
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Mode
External input
DIN Indication
Power supply between 3 and 8
Short-circuit between 4 and 1
Input signal between 3 and 1
Power supply between 1 and 8
Power (3-8)
External short circuit (1-4)
External input (1-3)
Time limit contact
NO (6-5)
Run/Power indicator (PW)
Output indicator (OUT)
H3RN-2/H3RN-21
Bottom View
OUT
Timer
circuit
Note: t:
Rt:
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PW
50 ms
min.
Reset time
Terminals
Set time
DIN Indication
H3RN
3