EE-SX95
5
Safety Precautions
Refer to Warranty and Limitations of Liability.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly. Do not
use it for such purposes.
Power Supply Voltage
Do not exceed the voltage range
indicated in the specifications.
Applying a voltage exceeding the
specifications or using an AC
power supply may result in rupture
or burning.
Faulty Wiring
Do not reverse the power supply
polarity. Doing so may result in
rupture or burning.
Load Short-circuit
Do not short-circuit the load. (Do
not connect to the power supply.)
Doing so may result in rupture or
burning.
Do not use the product in atmospheres or environments that exceed
product ratings.
●Operating Environment
• Do not install the Sensor in the following places to prevent
malfunction or trouble:
1. Places exposed to dust or oil mist
2. Places exposed to corrosive gas
3. Places directly or indirectly exposed to water, oil, or chemicals
4. Outdoor or places exposed to intensive light, such as direct
sunlight
• Be sure to use the Sensor under the rated ambient temperature.
• The Sensor may be dissolved by exposure to organic solvents,
acids, alkali, or aromatic hydrocarbons, aliphatic chloride
hydrocarbons causing deterioration in characteristics. Do not
expose the Sensor to such chemicals.
●Installation
• It is assumed that EE-SX95 Sensors will be built into a device.
These Sensors use non-modulated light and are not equipped to
deal with interference from an external light source. When they are
used in locations subject to external light interference, such as
near a window or under an incandescent light, install them to
minimize the effects of external light interference.
• Mount the Sensors securely on a flat surface.
• Use M3 or M2.0 screws to secure the Photomicrosensor. (The
stronger M3 screws are recommended. In addition, use flat
washers and spring washers to prevent the screws from
loosening.) Refer to the following table for the correct tightening
torque.
• If the Sensor is to be used on a moving part, secure the cable
connection point so that it is not directly subjected to stress.
● Wiring
Unused Output Lines
Be sure to isolate output lines that are not going to be used.
Connecting to Devices with Voltage Input
Specifications
A Sensor with an open-collector output can be connected to a counter
with a voltage input by connecting a resistor between the power
source and output. Select a resistor with reference to the following
example. The resistance of the resistor is generally 4.7 kΩ and its
wattage is 1/2 W for a supply voltage of 24 V and 1/4 W for 12 V.
Example: EE-SX95 Series
Load Resistance of 4.7 kΩ Connected in a Counter
Counter Specifications
The high and low levels are found using the following formulas. The
input device specifications must satisfy both formulas.
High level:
Low level:
Input voltage VL ≤ 1.0 V (Residual voltage for 50-mA load current)
Note: Refer to the ratings of the Sensor for the residual voltage of the
load current.
Load Short-circuit Protection
•The EE-SX95 provides load short-circuit protection.
If a load short circuit occurs, the output will go OFF. Check the
wiring and cycle the power supply. The load short-circuit protection
circuit will be reset. The load short-circuit protection will also
operate if the current exceeds the rated load current.
If a capacitive load is being used, make sure that the inrush current
will not exceed the rated load current.
Other Precautions
• Do not disconnect or wire the cables from the Sensor when power
is supplied to the Sensor, or Sensor damage could result.
• Make sure the total length of the power cable connected to the
product is less than 10 m.
●Other Precautions
• An output pulse may occur when the power supply is turned ON
depending on the power supply and other conditions. The
operation of the Sensor will be stable 100 ms after turning ON the
power supply.
• Dispose of this product as industrial waste.
WARNING
Precautions for Safe Use
Precautions for Correct Use
Screw diameter Tightening torque
M2.0 0.15 N·m max.
M3 0.54 N·m max.
Sensor
Brown
Blue
Load
Load
Black
White
Sensor
Brown
Blue
Black
White
−
+
Load
Load
Sensor
Brown
Blue
+
−
Black
White
Load
Load
(Load short-circuit)
Input impedance 5.6 KΩ
Voltage judged as high level (input ON) 4.5 to 30 VDC
Voltage judged as low level (input OFF) 0 to 2 VDC
SW
main
circuit
Tr
+Vcc
EE-SX95 series Counter (Voltage input type)
Insert a resistor
Output
0 V 0 V
R
24 V
Power supply
Z
Input terminal (CP)
(Input impedance:
approx. 5.6 kΩ)
Input voltage VH = R+Z
ZVcc = 4.7 k+5.6 k
5.6 k × 24 V = 13 V
Load current Ic = R
Vcc = = 5.1 mA ≤ 50 mA
R
24 V