ø30
ø30 Series Instructions
Installation of LED Illuminated Units
1. Note the polarity for wiring when connecting to DC-DC
converter unit.
3. Notes for Pure White LED Lamps
•ꢀDo not use the pure white LED outdoors, otherwise it will
lead to the degradation of brightness and color. Do not
remove or apply shock to the cap on the pure white LED
lamp, otherwise it may break or damage the cap.
Terminal No.
Polarity
Positive
Negative
X1
X2
•ꢀFor the pure white LED, use a white lens. The illumination
color will be dull if a different color is used.
2. Transformer units are recommended for use in areas
subjected to noise.
[Protection Example 1] For AC circuit
Notes on LED Illuminated Units
LED lamps consist of semiconductors. If the applied
voltage exceeds the rated voltage, LED elements may
deteriorate due to overheat, resulting in significant
LED with
transformer
decrease in luminance, hue change, or failure of lighting.
Also, if an extraneous noise, transient voltage, or transient
current is applied to the circuit, similar effects may occur.
When using LED lamps, observe the following instructions.
C
R
C
R
LED with
transformer
Relay
coil or
LED
Ry
LED
solenoid
Rated Voltage
(Reference values) R: 120Ω
C: 0.1 μF
The LED lamps are rated at 6V, 12V, or 24V AC/DC, and
can be used within 10ꢀ the rated voltage of either AC or
DC.
[Protection Example 2] For DC circuit
+
DC Power
1. Switching power supply
(Reference values of the diode)
Forward current: More than the Ry coil current
Reverse withstand voltage: Ry coil current ¥ 10
Regulated voltage from switching power supply is best
suited. Make sure to use within the rated voltage of the
LED lamp.
Relay
Diode
Ry
LED
coil or
solenoid
2. Rechargeable battery
–
Note that the battery voltage may exceed the rated volt-
age of the LED lamp while the battery is being charged
and immediately after the charging is complete. Be sure
to use the LED lamp on a voltage of 10ꢀ the rated
voltage.
Countermeasures against Dim Lighting
1. Leakage currents through the transistors or a contact
protection circuit may cause the LED lamp to illuminate
dimly even when the output is off.
2. When the LED lamp is illuminated by a transistor output,
take the following measure.
3. Full-wave rectification
Since the LED lamp is AC/DC compatible, a diode
bridge for rectification is not necessary. If the LED lamp
is used on a full-wave rectification current through a
diode bridge, the rectifier diodes will reduce the voltage,
resulting in lower luminance.
[Circuit Example]
Connect shunt resistor R in parallel with the LED lamp.
4. Single-phase half-wave rectification
This is not suitable for the power source of LED lamps.
Use constant-voltage DC power.
R
LED
Noise
Io
LED elements deteriorate due to extraneous noise, result-
ing in significant decrease in luminance, hue change, or
failure of lighting. When such effects are anticipated, take a
protection measure shown below, such as RC elements or
a surge absorber.
Io: Leakage current when the output is off
R: Shunt resistor
(14/03/18)
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