H3FA-A-DC24 Omron, H3FA-A-DC24 Datasheet - Page 4
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H3FA-A-DC24
Manufacturer Part Number
H3FA-A-DC24
Description
TIMER
Manufacturer
Omron
Series
H3FAr
Type
Solid State Timerr
Datasheet
1.H3FA-B-DC24.pdf
(10 pages)
Specifications of H3FA-A-DC24
Relay Type
Integrated
Function
On-Delay
Circuit
DPST-NO/NC (1 Form A and B)
Delay Time
0.1 Sec ~ 10 Min
Output Type
Mechanical Relay
Contact Rating @ Voltage
3A @ 250VAC
Voltage - Supply
24VDC
Mounting Type
Through Hole
Termination Style
PC Pin
Timing Adjustment Method
Screwdriver Slot
Timing Initiate Method
Input Voltage, Trigger Signal
Timing Range
1 sec to 10 min
Supply Voltage
24 VDC
Accuracy
+/- 0.5 %
Operating Temperature Range
- 10 C to + 55 C
Product
Analog Timer
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
H3FAADC24
Z3010
Z3010
Connections
■ Block Diagrams
Note: All diagrams are views from the top.
H3FA-A, H3FA-B, H3FA-SA, H3FA-SB
When the input voltage is applied, the CR oscillator circuit in the
Timer starts to oscillate via the power supply circuit, the counter
circuit counts up to the preset setting, and an output signal is
produced. A transistor amplifies this signal to drive the load.
Contact Output
H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU
■ Rated Time and Terminal Connections
Note: 1. Short-circuit terminals 21 and 22 when using the internal variable resistor of H3FA.
Power
supply
Contact Output
Power
supply
H3FA-A/-SA/-AU/-SAU
H3FA-B/-SB/-BU/-SBU
2. An external resistor can also be used by opening terminals 21 and 22. When using an external resistor (1 MΩ for H3FA-A/-SA, 3 MΩ for H3FA-B/
-SB), connect it between terminals 21 and 23.
Model
Time range
selector
1 s
6 s
Reset input
Reset circuit
Reset circuit
For the internal variable
resistor
For the external resistor
For the internal variable resistor
For the external resistor
1
2
Start circuit
3
Contact output (NO contact for
Contact output (NC contact for
time-limit operation)
time-limit operation)
10 s
60 s
1
2
Power
supply
3
Power
supply
Terminal connection
Solid-state Output
Solid-state Output
The voltage across the H3FA-SA and -SB (solid-state output loads)
is the load input voltage minus the residual voltage when the
transistor turns ON.
1 min
6 min
Time range selector
10: Solid-state output terminal
12: Terminal for the internal load surge absorbing diode
Note: When using 12/24 V DC
Note: When using a 12/24 V DC-operated model.
1
Reset circuit
2
Reset input
For the internal variable resistor
Reset circuit
For the external resistor
3
For the external resistor
For the internal variable
resistor
5 to 24 V DC
5 to 24 V DC
10 min
60 min
Start circuit
-operated models
Short for 12 V DC
Open for 24 V DC (See note.)
Short for 12 V DC
Open for 24 V DC (See note.)
1
150 mA max.
Load surge-
absorbing diode
2
Load
Load
3
H3FA
.
4