Panasonic SU-7 Installation Manual
INSTRUCTION MANUAL
Slim Body
Thank you very much for using SUNX sensors. Please read this
Instruction Manual carefully and thoroughly for the correct and
optimum use of this sensor. Kindly keep this manual in a
convenient place for quick reference.
This product is not a safety sensor. Its use is not intended or designed
to protect life and prevent body injury or property damage from
dangerous parts of machinery. It is a normal object detection sensor.
Type
Model No.
Item
Applicable sensor head
Supply voltage
Current consumption
Sensing output
Output operation
Short-circuit protection
Self-diagnosis
output
Output operation
Short-circuit protection
External input
External synchro nization input
Test input
Remote sensitivity
setting input
External sensitivity
switching input
Response time
Timer function
Ambient temperature
Ambient humidity
Material
Accessories
Notes: 1)2)The plug-in connector type of SU-7 has suffix ‘J’ at the end of the model No.
Model No.: SU-7J
Except for the connector portion, its specifications are the same as for SU-7.
For SU-77, it can also be
Make sure to carry out the wiring in the power supply off condition.
Verify that the supply voltage variation is within the rating.
If power is supplied from a commercial switching regulator, ensure that the
frame ground (F.G.) terminal of the power supply is connected to an actual
ground.
In case noise generating equipment (switching regulator, inverter motor,
etc.) is used in the vicinity of this product, connect the frame ground (F.G.)
terminal of the equipment to an actual ground.
Do not use during the initial transient time (0.5 sec.) after the power supply
is switched on.
The self-diagnosis output is not incorporated with a short-circuit protection
circuit. Do not connect it directly to a power supply or a capacitive load.
Do not run the wires together with high-voltage lines or power lines or put
them in the same raceway. This can cause malfunction due to induction.
Extension up to total 100m is possible with 0.3mm
Avoid dust, dirt, and steam.
Take care that the sensor does not come in direct contact with water, oil,
grease or organic solvents, such as, thinner, etc.
Automatic Sensitivity Setting Amplifier
SU7 Series
NPN output
Standard
type
External synchronization input type
Remote sensitivity
setting type
Remote sensitivity
selection type
SU-7 SU-75 SU-77 SU-79
SH series
12 to 24V DC±10% Ripple P-P: Max. 10%
Max. 35mA
NPN open-collector transistor
Maximum sink current: 100mA
Applied voltage: 30V DC or less
(between sensing output and 0V)
Residual voltage:
NPN open-collector transistor
Maximum sink current: 50mA
Applied voltage: 30V DC or less
(between self-diagnosis output and 0V)
Residual voltage:
ON in unstable sensing condition (restored after approx. 40ms) or when
sensing output is short-circuited (restored when short-circuit is removed)
(For SU-77, it turns ON for approx. 40ms also after the external sensitivity switching input is received.)
0.6ms or less (0.8ms or less when interference prevention function is used)
–10 to +55˚C (No dew condensation or icing allowed), Storage: –20 to +70˚C
Enclosure: Heat-resistant ABS, Enclosure: Polycarbonate, Lock lever: PPS
MS-DIN-2 (Amplifier mounting bracket): 1 No., SU-CT1 (Stripper): 1 No.
1.0V or less (at 100mA sink current
0.4V or less (at 16mA sink current
ON/OFF mode is set by the ON/OFF buttons. (Note 2
Equipped
1.0V or less (at 50mA sink current
0.4V or less (at 16mA sink current
Signal condition
High…4.5 to 30V, or open
Low…0 to 1V
Input impedance: 10kΩ
Equipped (except for SU-75)
35 to 85% RH, Storage: 35 to 85% RH
set by the remote sensitivity setting input.
PNP open-collector transistor
Maximum source current: 100mA
Applied voltage: 30V DC or less
(between sensing output and +V)
)
Residual voltage:
)
PNP open-collector transistor
Maximum source current: 50mA
Applied voltage: 30V DC or less
(between self-diagnosis output and +V)
)
Residual voltage:
)
2
, or more, cable.
PNP output
Standard
type
SU-7P
2.0V or less (at 100mA source current
1.0V or less (at 16mA source current
)
2.0V or less (at 50mA source current
1.0V or less (at 16mA source current
CUTTING CABLE
Insert the cable into a hole provided for
cutting in SU-CT1, and press the blade
Holes for
cutting
down.
Note:
Do not stop the blade halfway. Press it up to
the bottom in one stroke.
Inlet for
stripping
STRIPPING CABLE
Press the blade downwards and stop it at the middle of the stroke.
Top position Middle position
There is a stopping
feel at the position
shown by the arrow.
Insert the cable into one of the inlets
provided for stripping at the center of
SU-CT1.
Note:
The cable must be inserted till it touches the
stopper.
Bottom view of SU-CT1
Stopper
Cable
Insert till
the end.
Press the blade fully down.
Note:
Do not tilt the blade when pressing.
With the blade still pressed, rotate SU-CT1
about a half-turn.
With the blade still pressed, withdraw SU-CT1
from the cable. Only the insulation is stripped.
Notes: 1)
)
)
Strip the cables one by one.
2)
The blade of SU-CT1 is not replaceable.
How to mount the amplifier
Mount the rear part of the amplifier on
the attached amplifier mounting bracket
(
MS-DIN-2) or a 35mm width DIN rail.
Press down the front part on the amplifier mounting bracket or the 35mm
width DIN rail to fit it.
Attached amplifier mounting
bracket of 35mm width DIN rail.
How to remove the amplifier
)
)
Hold the amplifier and push it forward.
Lift up the front part to remove the amplifier.
Sensor head connection
Open the case cover.
Process the cable end as shown on
Case cover
the right.
Note:
Do not remove the lead wire insulation.
Bring down the cable lock lever.
Insert the cables into the cable
inlets.
‘ ’ Receiver: Black cable
‘ ’ Emitter: Gray cable
Notes: 1)
Both the shield wires must be separately
twisted and placed facing each other on the
inside. Both inlets form symmetrical irregular
ovals that include the supplementary holes
facing each other. Insert the cables such
that the shield wires pass through the
supplementary holes. If the shield wires
pass through a part other than the supplementary holes, misconnection will occur.
2)
Place the shield wires facing each other,
and insert the cables straight, without
bending, till the end.
Pull up the cable lock lever to lock.
Shield wire
Cable wire
5 to 9mm
5 to 9mm
Gray Black
Black
Gray
Lead wire
Lead wire
Cable
inlets
Put on the case cover.
Case cover
Notes: 1)
If the cables are removed after releasing the lock lever, the same
cables can be connected to the amplifier, once more, as they are.
But for the third time, start from Step 2. If cable lock and release
operation is repeated, the lead wire may get cut causing a
connection failure.
If the cable end is left in the insertion hole, insert the cable after
2)
removing the cable end left inside.
For removing the cable end, turn the
sensor over and tap around the cable
insertion holes. If this does not work,
peel off the seal at the back of the
amplifier and take out the cable end.
(The seal can be stuck again.)
Seal
Cable end
Seal
I/O Circuit Diagram
[NPN output type]
D
5V
5V
100mA
ZD1
Sensor circuitSensor circuit
ZD2
Tr2
Sensor internal circuit
max.
Tr1
50mA
max.
Color of lead wires
(Brown) +V
(Pink) Input 1 (Note
(Violet) Input 2 (Note
(Black) Sensing output
(Orange)
Self-diagnosis
output
(Blue) 0V
Users’ circuit
)
Load
)
If a disable switch is provided here,
it prevents wrong setting.
[PNP output type]
(Brown) +V
D
Tr3
ZD1
Symbols... D
Z
Tr1, Tr2
Tr3, Tr4
The name of input wires differs depending on the model No.
Note:
Model No.
SU-7
Input
SU-7P
Input 1
Input 2
Mode selection switch
Timer adjuster (Note)
Sensitivity setting buttons
Note:
It is the remote synchronization selection switch for SU-75.
(Black) Sensing output
Tr4
(Orange) Self-diagnosis output
ZD2
(Blue) 0V
Users’ circuitSensor internal circuit
Load
50mA
max.
: Reverse supply polarity protection diode
D1, ZD2
: Surge absorption zener diode
: NPN output transistor
: PNP output transistor
SU-75
External synchronization
input (ES)
Test
input (CONT.)
OND
RUN
SIF
SET
SU-79
ON button
OFF button
Remote sensitivity
setting input (R. ON)
Remote sensitivity
setting input (R. OFF)
OFD
ON
TIMER
OFF
+
100mA
max.
12 to 24V DC
±10%
–
+
12 to 24V DC
±10%
–
Load
Load
SU-77 SU-79
External sensitivity
switching Input 1 (S1)
External sensitivity
switching Input 2 (S2)
STB
OUT
Operation
indicator (Red)
Stable operation
indicator (Green)
Standard Setting (Automatic sensitivity setting function)
In case the sensing output is ON when object is detected.
Setting procedure
Step Operation
Place sensor head within the sensing range. (Note1)
RUN
Set mode selection switch to “SET”.
SIF
SET
Press ON button with the sensing object present. (Release it within 3s.)
Thru-beam Reflective
Mark
Light is interrupted
Base
When ON state is recognized by the sensor,
stable operation indicator (green) will flash.
ON
OFF
STB
OUT
Press OFF button with the sensing object absent. (Release it within 3s.)
Thru-beam
Light is received
Reflective
Mark
Base
ON
OFF
The stable operation indicator will flash twice if the sensitivity
difference (received light intensity difference) between ON state
and OFF state is sufficient and a stable detection is possible.
Stable operation indicator will flash continuously if stable detection
is not possible. (Note 2)
Set mode selection switch to “RUN”.
Now, the sensitivity setting buttons are ineffective.
RUN
SIF
SET
So, even if the buttons are pressed by mistake, the registered
sensitivity will remain unchanged.
In case the sensing output is ON when object is not detected.
In the above procedure
Press ON button with the sensing object absent.
Press OFF button with the sensing object present.
Notes: 1)
Notes: 2)
As the sensing range will differ according to the type of sensor head, refer to
the catalog. The sensing range for the reflective type sensor head is the
figure for white non-glossy paper. The actual sensing range will differ
according to the sensing object's color, surface condition, etc.
The sensitivity can be registered in the sensor even if the sensing condition
is not stable.
Setting by remote sensitivity setting input (For SU-77 only)
Instead of pressing buttons, the sensitivity can be set with the
remote sensitivity setting input.
(Shift setting cannot be done with remote sensitivity setting input.)
Setting procedure
The procedure is the same as for setting with the sensitivity setting buttons,
except that instead of pressing the buttons, the remote sensitivity setting
input wire is short-circuited to 0V. The mode selection switch is set to either
the “SET” or “RUN” side.
Orange (Self-diagnosis output)
Black (Sensing output)
ON
ON
OFF
OFF
Brown (+V)
Blue (0V)
R. ON
Pink
R. OFF
Violet
Orange (Self-diagnosis output)
Black (Sensing output)
Brown (+V)
Blue (0V)
Normally, set the sensitivity as per Standard Setting .
If the sensing is unstable, set as per limit, shift or full power setting.
Received light intensity
With
Standard setting
Limit setting
Shift setting
Full power setting
workpiece
Without
workpiece
Large
Small
ON input
Operation level
OFF
input
The optimum sensitivity is set with one press of the button (or
with one Low input). The sensitivity can be set without
sensing a workpiece.
If the received light intensity fluctuates either in the workpiece
present or absent state, shift the operation level towards the
stable light intensity state.
The MAX. sensitivity is set.
In case of reflective type sensor, if a background is present,
Note:
the sensor may become ON even without a workpiece.
The operation level is
set approximately
halfway between the
light intensity received for ON input and
OFF input.
R. ON
Pink
R. OFF
Violet
Time chart
The self-diagnosis output stays ON for approx. 40ms after ON input or OFF
input is recognized by the sensor.
If the difference between the ON and OFF levels (the difference between
incident light levels) is so small that stable detection is not possible, it
does not turn ON.
Power supply
Remote sensitivity
ON input (R. ON)
Remote sensitivity
OFF input (R.OFF)
Self-diagnosis
output (Note2)
Sensing output
T1 1,000ms, 3,000ms T2 5ms, T3 310ms, T4 40ms, T5 500ms
Notes: 1)
Notes: 2)
Signal condition ... Low: 0 to 1V, High: 4.5 to 30V, or open
Input impedance: 10kΩ
Do not move the workpiece, etc., or change the received light intensity
during T
ON
OFF
High
Low
High
Low
ON
OFF
3.
T1
T2
T5 T2
(
)
T3
Note 2
(
)
T3
Note 2
T4 T4
Sensing ready
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