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●
If a specular body is present in the background,
wrong operation may be caused due to a small
change in the angle of the background body. In
that case, install the sensor at an inclination
and confirm the operation with the actual sens-
ing object.
●
Some object may produce the dead zone right
in front of the sensor.
5
I/O CIRCUIT DIAGRAMS
● NPN output type / EQ-34
Color code / Connector pin No.
of the connector type
D
100mA max.
T
r
Z
D
Internal circuit
Users' circuit
Symbols...D
: Reverse supply polarity protection diode
Z
: Surge absorption zener diode
D
T
: NPN output transistor
r
● PNP output type / EQ-34-PN
Color code / Connector pin No.
of the connector type
Z
D
100mA max.
T
r
D
Internal circuit
Users' circuit
Symbols...D
: Reverse supply polarity protection diode
Z
: Surge absorption zener diode
D
T
: PNP output transistor
r
● Two outputs type / EQ-34W
Color code
D
T
r1
100mA max.
Z
D1
T
r2
100mA max.
Z
D2
Internal circuit
Users' circuit
Symbols...D: , Reverse supply polarity protection diode
Z
, Z
: Surge absorption zener diode
D1
D2
T
, T
: NPN output transistor
r1
r2
● Connector pin position of the connector type
2
Not connected
3
0V
Ramco National
6
STABILITY INDICATOR
● Since the EQ-30 series uses a 2-segment pho-
todiode as its receiving element, and sensing is
done based on the difference in the incident
beam angle of the reflected beam from the
sensing object, the output and the operation in-
dicator operate according to the object distance.
Further, the stability indicator shows the margin
of the incident light intensity and not that of the
object distance.
Hence, the distance at which it lights up / OFF
depends on the object reflectivity and is not at
all related to the output operation. Do not use
the sensor when the stability indicator is OFF
(unstable light received condition), since the
sensing will be unstable.
+
Sensor
10 to 30V
DC
-
Output
(operation indicator)
(In case of Detection-ON)
Stability indicator
(Black non-glossy paper)
Stability indicator
(White non-glossy paper)
+
10 to 30V
DC
-
7
DISTANCE ADJUSTMENT
The following distance adjusting procedure for
EQ-34, EQ-34-PN and the Far (Main) side / Near
(Sub) side of EQ-34W is for use when a sensing
object moves horizontally to the sensor. When a
sensing object is approaching / moving away
from the sensor, follow only steps ① and ② re-
spectively.
Since the sensing point may change depending
on the sensing object, be sure to check the oper-
ation with the actual sensing object.
EQ-34, EQ-34-PN
+
10 to 30V
● Top-view
DC
-
Adjuster indicator
Shows how much
the distance adjust-
er is rotated.
Operation indicator
(Red)
1
+V
Lights up when the
output is ON.
４
● Adjusting procedure
Output
Step
Turn the distance adjuster fully counter-
①
clockwise to the minimum sensing range
position of 0.2m approx.
Place an object at the required distance
from the sensor, turn the distance adjuster
②
gradually clockwise, and find out point
where the sensor changes to the light re-
ceived condition.
Remove the object, turn the distance ad-
juster further counterclockwise, and find
out point
the light received condition again with only
③
the background.
When the sensor does not go to the light
received condition even if the adjuster is
fully turned clockwise, point
treme point in the range.
The optimum position to stably detect ob-
④
jects is the center point between
Note: Use the accessory adjuster screwdriver to turn the distance
adjuster slowly. Turning with excessive force will cause dam-
age the adjuster.
Setting distance
Sensing
Sensing
Sensing
object
object
object
Unstable light
received condition
Stable light
Stable dark
received condition
condition
Unstable light
received condition
Stable light
Stable dark
received condition
condition
Distance adjuster
(2-turn)
The sensing range
increases as it is
turned clockwise.
Operation mode switch
N E A R
F A R
L: Detection-ON
D: Detection-OFF
(Turn the switch fully.)
D
L
Stability indicator (Green)
Lights up under stable
light received condition
or stable dark condition.
Description
Distance adjuster
N E A R
N E A R
where the sensor changes to
N E A R
is this ex-
and
.
N E A R
www.PanasonicSensors.com
EQ-34W
● Top-view
Far (Main) adjuster indicator
Shows how much the dis-
tance adjuster is rotated.
Near (Sub) distance adjuster
The sensing range increas-
es as it is turned clockwise.
Near (Sub) output
operation indicator (Red)
Lights up when the Near
(Sub) output is ON.
Stability indicator (Green)
Lights up under stable
light received condition
or stable dark condition.
●
Adjusting procedure
・
Far (Main) side
Step
Turn the Far (Main) distance adjuster
①
fully counterclockwise to the minimum
sensing range position of 0.2m approx.
Place an object at the far place at the re-
quired distance from the sensor, turn the
②
Far (Main) distance adjuster gradually clock-
ON (Lights up)
wise, and find out point
OFF (Turns off)
changes to the light received condition.
Remove the object, turn the Far (Main)
Lights up
distance adjuster further clockwise, and
find out point
Turns off
changes to the light received condition
③
again with only the background.
Lights up
When the sensor does not go to the
light received condition even if the ad-
Turns off
juster is fully turned clockwise, point
is this extreme point in the range.
The optimum position to stably detect
④
objects for the Far (Main) setting is the
center point between
・ Near (Sub) side
Step
Turn the Near (Sub) distance adjuster
①
fully counterclockwise to the minimum
sensing range point.
Place an object at the near position, at the
required distance from the sensor, turn the
②
Near (Sub) distance adjuster gradually
clockwise, and find out point
sensor changes to the light received condi-
Remove the object from the near posi-
tion, and place the object for Far (Main)
sensing at the sensing position. Turn the
Near (Sub) distance adjuster further
clockwise, and find out point
③
sensor changes to the light received con-
dition again with only the background.
When the sensor does not go to the
light received condition even if the ad-
juster is fully turned clockwise, point
is this extreme point in the range.
The optimum position to stably detect
④
objects for the Near (Sub) setting is the
center point between
Notes: 1)
Use the accessory adjuster screwdriver to turn the distance adjuster
slowly. Turning with excessive force will cause damage the adjuster.
2)
The Far (Main) distance adjustment should be done before the Near
(Sub) distance adjustment. Take care that the Near (Sub) setting
distance changes with change in the Far (Main) setting distance.
EQ-34W
F A R
Turn fully
Far (Main) output
A
In case of
Far (Main) distance adjustable range
Detection-ON
F A R
Near (Sub) output
In case of
Detection-OFF
A
B
F A R
A
O p timu m
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position
B
Overseas Sales Division ( Head Office )
F A R
2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan
Phone: +81-568-33-7861 FAX: +81-568-33-8591
Europe Headquarter: Panasonic Electric Works Europe AG
Rudolf-Diesel-Ring 2, D-83607 Holzkirchen, Germany
Phone: +49-8024-648-0
US Headquarter: Panasonic Electric Works Corporation of America
629 Central Avenue New Providence, New Jersey 07974 USA
Phone: +1-908-464-3550
© Panasonic Electric Works SUNX Co., Ltd. 2010
Far (Main) distance
adjuster (2-turn)
The sensing range
increases as it is
turned clockwise.
Operation mode switch
NEAR
FAR
MAIN
L: Detection-ON
SUB
MODE
D: Detection-OFF
D
L
(Turn the switch fully.)
Far (Main) output
operation indicator (Red)
SUB
STB
MAIN
Lights up when the Far
(Main) output is ON.
Description
Distance adjuster
NEAR
FAR
MAIN
Turn fully
A
NEAR
FAR
where the sensor
MAIN
where the sensor
A
NEAR
FAR
MAIN
B
A
Optimum
position
NEAR
FAR
MAIN
and
.
B
Description
Distance adjuster
SUB
Turn fully
SUB
C
where the
SUB
where the
C
D
SUB
C
Optimum
position
and
.
D
Near (Sub)
Far (Main)
setting distance
setting distance
Near object
Far object
ON
OFF
(0.2 to 2m)
ON
OFF
Near (Sub) dis-
tance ad j uster set
Near ( Sub ) distanc e
a t th e m a ximum .
adjusta b le ran ge
PRINTED IN JAPAN
1-800-280-6933
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