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参数资料
| 型号： | A3DA-7111 |
| 厂商： | Omron Electronics Inc-IA Div |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | SWITCH UNIT-IP40 |
| 标准包装： | 1 |
| 系列： | A3D |
| 其它名称： | A3DA7111 |
A3D
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches.
Precautions for Correct Use
Mounting
? Always make sure that the power is turned OFF before mounting,
removing, or wiring the Switch, or performing maintenance. Electric
shock or fire may occur.
? Do not tighten the mounting ring excessively using pliers or a
similar tool. Excessive tightening may damage the mounting ring.
(Tightening torque: 0.20 to 0.29 N·m)
Wiring
? When wiring, use wires of a size appropriate for the applied voltage
and carry current. Perform soldering correctly under the conditions
given below. Using the Switch with the wires soldered incorrectly
may cause the terminals to become abnormally hot and cause a
fire.
1. Hand soldering:
Soldering iron tip temperature: 350 ° C max. within 3 seconds.
2. Dip soldering: At 350 ° C within 3 seconds.
Wait for one minute after soldering before exerting any external
force on the solder.
? Use a non-corrosive rosin liquid for the flux.
? Perform wiring so that the wire sheaths do not come into contact
with the Switch. If this is unavoidable, use wires that can withstand
temperatures of 100 ° C min.
After wiring to the Switch has been completed, ensure an
appropriate insulation distance.
LED
? The polarity of the LED is indicated on the back of the Switch. Wire
the LED correctly according to the polarity.
? The built-in LED does not have a limiting resistor. Connect a limiting
resistor.
? Make sure that the limiting resistor satisfies the characteristics of
Calculation Example for Limiting Resistance
LED lamp illuminating color: Red
E = 24V
I F = 20mA
The VF-IF characteristics (for red) on page 4 yield the following:
VF = 1.7 V when IF = 20 mA.
Therefore, inserting the values into the formula above (R = E ? VF/IF( Ω )):
R = 24 (V) ? 1.7 (V)/0.02 (A) ? 1100 ( Ω ).
The recommended resistance is 1.1 k Ω at 1 W (2 × IF 2 R).
Note: Approximately twice this value is appropriate to provide a
margin in the capacity of the resistor.
Operating Environment
? Ensure that dust, metal powder, or oil do not enter the interior of the
Switch.
Using Microloads
? Using a standard load switch for opening and closing a microload
circuit may cause wear on the contacts. Use the switch within the
operating range. (Refer to the diagram below.) Even when using
microload models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may cause
the contact surface to become rough, and so decrease life
expectancy. Therefore, insert a contact protection circuit where
necessary.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability
level of 60% ( λ 60) (conforming to JIS C5003). The equation,
λ 60 = 0.5 x 10 ? 6 /times indicates that the estimated malfunction rate
is less than 1/2,000,000 with a reliability level of 60%.
the built-in LED. The forward current of the built-in LED must be 8
mA minimum.
30
0.15mA
26mA 100mA
? The resistance can be calculated by using the following expression.
R=------------ ( Ω )
E-V F
I F
E : Operating voltage (V)
V F : LED forward voltage (V)
I F : LED forward current (A)
24
Microload area
Standard
load area
Recommended Values for Limiting Resistance
12
Voltage
Red
Yellow (White)
Green
Invalid
5 VDC
12 VDC
24 VDC
165 Ω
515 Ω
1,100 Ω
140 Ω
490 Ω
1,090 Ω
145 Ω
495 Ω
1,095 Ω
5
0
0.1
area
1mA
1
10
100mA 150mA
100 1,000
Note: The above values are calculated values that can be used as reference.
Current (mA)
8
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相关代理商/技术参数 |
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|---|---|
| A3DA-7111 | 制造商:Omron Industrial Automation 功能描述:SWITCH SPNO SQUARE |
| A3DA7112 | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:SWITCH UNIT-IP40 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:SWITCH UNIT-IP40 |
| A3DA-7112 | 功能描述:开关配件 SWITCH UNIT-IP40 RoHS:否 制造商:C&K Components 类型:Cap 用于:Pushbutton Switches 设计目的: |
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| A3DA-7121 | 功能描述:开关配件 Square Alternate Solder Terminal RoHS:否 制造商:C&K Components 类型:Cap 用于:Pushbutton Switches 设计目的: |
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