SSF

SSF series
Fail-safe
Light curtain sensors
●
Safety ensured in the
unlikely event of failure
Fail-safe feature
●
Enhanced safety with high
performance and userfriendliness
Multifunctional
●
20 - 40 ㎜ beam intervals
available
Wide variation
Output relay turns OFF (safe side) when failure occurs
Light Curtain Sensors
Light emitting
circuit
damaged
Receiver
Transmitter
Light receiving
circuit
damaged
Light emitting
element
damaged
Light sensitive
element
damaged
Synchronization/
Anti
Interference line
Disconnection
damaged
Output circuit
damaged
Control unit
Disconnection
Output relay contact
welded
Output circuit
broken
Power supply
line broken
480
SSF
Optical axis alignment indicator
for ease of use
Beam interval:
Optical axis alignment indicator lamps
for the top (H) and bottom (L) optical
axes are provided at the center of the
receiver for assistance to adjust and
check the optical axes.
20 /
40mm
Minimum detection objec
t:
φ 30mm /φ
50mm
Detecting distance
2 sets of sensors mounted adjacently
or face-to-face without interference
5m
Anti Interference feature counteracts the
installation restrictions and ensures reliability.
Relay contacts used for all outputs
for enhanced fail-safe feature
Fail-safe automatic sensitivity
compensation feature provided
Contact relays are used for control and lockout
outputs. Failure-safe is taken into consideration
for failure mode as well.
Easy maintenance thanks to robust and slim
case provided with spatter resistant plate
Robust aluminum drawn case is employed. Front
cover that protects the lenses from scattered oil
dust or spatters may be removed for cleaning and
replacement.
CHECK switches provided for
simple operation check
Light Curtain Sensors
After the optical axis alignment, turn the power off
once and back on. The automatic sensitivity
compensation feature is enabled and the
sensitivity is set at the optimum. If the lens is
soiled with dirt or dust, or even after the soil is
removed the sensitivity is automatically
compensated to achieve the optimum sensitivity.
The CHECK switches on the
control unit allow simple
operation check and lockout
release check.
Wide variation
Detecting
width
2520mm
A wide range of sizes from 4 (120㎜)
to 64 optical axes (2520 ㎜)
Detecting width
120mm
offered for various applications
(compatible to supersized machines).
481
SSF
■ Type
Series
name
Detecting distance
SSFT200
5m
SSFT400
●
Detecting
width
140㎜
300㎜
460㎜
620㎜
780㎜
940㎜
1100㎜
1260㎜
120㎜
280㎜
440㎜
600㎜
760㎜
920㎜
1080㎜
1240㎜
Set model
No. of Optical axis
No.
light axes interval
8
SSF-T8C
16
SSF-T16C
24
SSF-T24C
32
SSF-T32C
20㎜
40
SSF-T40C
48
SSF-T48C
56
SSF-T56C
64
SSF-T64C
4
SSF-T404C
8
SSF-T408C
12
SSF-T412C
16
SSF-T416C
40㎜
20
SSF-T420C
24
SSF-T424C
28
SSF-T428C
32
SSF-T432C
Detecting
object
Opaque
φ30㎜ or more
Opaque
φ50㎜ or more
Set model description
Light Curtain Sensors
Transmitter: SSF-TL □□□ ⎫
⎬ □ indicates the number of optical axes
Receiver: SSF-TR □□□ ⎭
Control unit: SSF-C
Cord with connector for transmitter: SS-H5L
Cord with connector for receiver: SS-H5R
● Products with countermeasures provided in the event of faulty operation due to spatter or arc light are available (SSF-T400 Series).
Transmitter: SSF-TL4 □□ -HP
Receiver: SSF-TR4 □□ A-HP
Set model: SSF-T4 □□ AC-HP
●
2 output type
Products with two 1a contact outputs are available on request.
■ Optional Parts
●
Corner reflector
Deflects light at a corner.
Model
SSM-F8N
SSM-F16N
SSM-F24N
SSM-F32N
SSM-F40N
SSM-F48N
SSM-F56N
SSM-F64N
Applicable model (*)
SSF-T8
SSF-T16
SSF-T24
SSF-T32
SSF-T40
SSF-T48
SSF-T56
SSF-T64
(Note) The detecting distance will be reduced to 4m max.
*May also be used for the SSF-T400 Series. Note the number of
axes and the overall length of the reflector.
See P.491 for details.
●
Front cover
Model: SSF-K□* □ indicates the number of optical axes (unified price for all models).
482
SSF
■ Rating/Performance/Specification
SSF-T400 series (with 20mm beam interval)
SSF-T200 series (with 40mm beam interval)
Through beam
Series
Detection method
Detecting distance
Detecting object
Optical axis interval
No. of light axes
Detecting width
Power supply
Current consumption
Control
output
Lockout
output
5m or less
20㎜
(See “Type.”)
24VDC ±10%
300mA or less
Output: Relay contact 1a (2 relay outputs in series)
Rating: 250V 3A AC resistive load
30V 2A DC resistive load
Output
mode
Operation mode
Response time
Activated when light beams of all axes are received
Light blocking: 20 ms or less / Light reception: 30 ms or less
Output: Relay contact 1a
Rating: 250V 1A AC resistive load
30V 1A DC resistive load
Output
mode
Operation mode
Response time
Light source
Light-sensitive element
ON for normal operation, OFF for failure
50ms or less
Infrared LED (wavelength 880nm)
Photo IC
Circuit failure indicator (Orange) Synchronization failure indicator (Red)
RUN indicator (Green)
Slave indicator (Orange)
Transmitter
Receiver
Top optical axis alignment indicator (Green)/Disturbing light indicator (Orange) /Bottom optical axis alignment indicator (Green)
Operation indicator (Red)/Unstable light reception indicator (Orange) /Stable light reception indicator (Green)
Control
POWER (Green)
OUTPUT (Yellow)
SENSOR FAIL (Red) LOCK OUT (Red)
unit
Auxiliary functions
Switch
Mutual interference prevention feature for adjacent installation, automatic sensitivity compensation
Control unit: CHECK switch
Material
Transmitter/Receiver: Aluminum / Front cover: Acrylic
Control unit: Polycarbonate
Connection
Attached cable with connector φ6.8 ㎜ 4 cores cable / 0.2 m
Control unit: Terminal block type with M3.5㎜ screws
Weight
Sensor
Control unit
Accessory
Light Curtain Sensors
Indicator
Opaque φ50㎜ or more.
40㎜
Opaque φ30㎜ or more.
Approx. 230g - 1000g
Approx. 160g
Cable with connector 5 m, mounting brackets, operation manual
■ Environmental Specification
Ambient light
Ambient temperature
Ambient humidity
Vibration
Protective structure
Dielectric withstanding
Insulation resistance
9000lx or less
–10 - +55 °C (non-freezing)
35-85%RH (non-condensing)
10-55 Hz / 1.5 ㎜ double amplitude / 2 hours each in 3 directions
Sensor: IP65 / Control unit: IP40
1500 VAC for 1 minute
500 VDC, 20 MΩ or higher.
■ Optional Parts
Cable with connector (10 m)
For transmitter: SS-H10L (gray covering)
For receiver: SS-H10R (black covering)
483
SSF
Transmitter
■ Input/Output Circuit and Connection
Sensor
Lead colors
Control unit SSF-C
7
8
Anti Interference input 9
0V (Blue) 10
+V (Brown) 11
Synchronization line 12
5
2
4
1
6
3
IN (Black)
Internal circuit
Receiver
M/S line ( Purple)
(Orange/purple striped)
24VDC
0V
OUT
Control output
OUT
LOCK
OUT Lockout output
LOCK
OUT
(Circled numbers show pin Nos.)
■ Indicators and Operation
The indicators provided for the transmitter, receiver and control unit and their operation are outlined as follows:
Transmitter
Control unit
Light Curtain Sensors
Indicator
location
⑪
⑫
④
③
⑩ ⑨ ⑧
⑬
⑭
②
Control unit
Receiver
Transmitter
Type No.
484
Receiver
①
②
Indicator name
①
Color
Green
Orange
Red
Orange
Green
Orange
Red
Green
Orange
Green
⑦ ⑥ ⑤
Normal operation
Illuminated
⑫
RUN indicator
Slave indicator
Synchronization failure indicator
Circuit failure indicator
Stable light reception indicator
Unstable light reception indicator
Operation indicator
Bottom optical axis alignment indicator
Disturbing light indicator
Top optical axis alignment indicator
Power indicator
Control output indicator
⑬
Sensor failure indicator
Not illuminated
Illuminated when beam of top axis is received
Green Illuminated when power is supplied
Yellow Illuminated when beam of any axis is unstably received
Red
Not illuminated
⑭
Lockout output indicator
Red Not illuminated
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
Illuminated on slave
Not illuminated
Not illuminated
Failure description and indication
Flashes to indicate transmitter failure
Flashes to indicate abnormal operation on slave
Flashes to indicate broken synchronization line
Flashes to indicate circuit failure
Illuminated when beams of all axes are stably received
Illuminated when beam of any axis is unstably received
Flashes to indicate receiver failure
Illuminated when beam of any axis is received/blocked
Illuminated when beam of bottom axis is received
Flashes to indicate broken synchronization line/transmitter failure
Illuminated when disturbing light/noise is detected
Flashes to indicate receiver failure
Illuminated when power supply is down
—
Illuminated to indicate sensor
failure/unconnected/power short circuit
Illuminated to indicate lockout output
SSF
■ Connection Examples
Connection for standalone use
●
●
Connection for Anti Interference
Connect as shown below for adjacent installation of two sets of sensors.
BRN
BLU
10
11
12
7
8
9
Slave
BLK
VIO
ORG/VIO
BRN
BRN
BLU
BLU
10
11
12
7
8
9
Control unit SSF-C
Control unit SSF-C
Control output
(relay contact output)
4
5
6
OUT
+24
LOCKOUT
Lockout output
(relay contact output)
ORG/VIO
BLK
Receiver
VIO
ORG/VIO
Receiver
BRN
BLU
Transmitter
BLU
Receiver
BRN
Master
ORG/VIO
Transmitter
BLK
Transmitter
VIO
ORG/VIO
ORG/VIO
BRN
BLU
10
11
12
7
8
9
(Mutual Interference
line)
Control unit SSF-C
4
5
6
4
5
6
OUT
+24
LOCKOUT
OUT
+24
LOCKOUT
1
2
3
1
2
3
1
2
3
OUT
0V
LOCKOUT
OUT
0V
LOCKOUT
OUT
0V
LOCKOUT
DC24V
Power supply
0V
DC24V
Power supply
0V
Be sure to use the same power supply for the master and slave control units.
The terms master and slave are only used for convenience in distinguishing between two units of the same model that function differently depending
on the wiring. The unit with its Anti Interference line connected to Terminal 9 is referred to as the master.
Do not connect the transmitter and receiver to separate control units.
For wiring length, see Cable Extension.
●
●
●
●
■ Perfomance Curves (Typical)
Response Curves:Longitudinal Gap
●
(All models)
●
Response Curves:Lateral Gap
Response Curves:Tilt Angle
Light Curtain Sensors
●
(All models)
(All models)
Receiver
Detecting distance L(m)
5
4
7
θ
6
L
5
5
4
4
3
3
Detecting distance L(m)
Detecting distance L(m)
Transmitter
3
Displace
receiver
Transmitter
fixed
α
Transmitter
fixed
2
1
1
300
200
100
0
100
200
300
300
200
100
0
100
200
300
20
15
10
5
0
5
10
15
20
Angle θ (degrees)
Position α (mm)
Position α (mm)
●
2
L
1
L
2
Receiver
Displace
receiver
α
Receiver
Response Curves:Minimum Detecting Object
SSF-T200 series
SSF-T400 series
30
50
20
40
5m
A (transmitter)
A
C
B (midway)
5m
L
R
Detection object
Detection object
L
B
C (receiver)
A (transmitter)
A
C
B (midway)
R
B
C (receiver)
485
SSF
■ Indication/Operation Matrix
The operations of the indicators and outputs of the sensor and control unit are as shown in the table below: ●：Illuminated
Sensor
Transmitter indicator Receiver indicator
Normal operation
Item
Stable light
reception
Light blocking
Disturbing light
(when detected)
Light emitting
element damaged
Light sensitive
element damaged
Light emitting
circuit damaged
●
●
●
○
●
○
●
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
●
●
●
○
SLV
RUN
OP
UNSTB
STB
●
●
▲
△
●
▲
△
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
●
○
●
●
SLV
RUN
OP
UNSTB
STB
●
●
●
○
●
○
●
○
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
●
●
●
○
SLV
RUN
OP
UNSTB
STB
●
●
▲
△
●
▲
△
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
●
○
●
●
SLV
RUN
OP
UNSTB
STB
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
RUN
OP
UNSTB
STB
●
●
CIR
NOISE
SYNC
OP
UNSTB
STB
▲
△
Sensor
SLV
Light receiving
circuit damaged
Failure
Light Curtain Sensors
Output circuit
damaged
●
●
CIR
SYNC
▲
△
●
○
SLV
RUN
●
●
▲
△
▲
△
▲
△
CIR
SYNC
CIR
NOISE
SYNC
Output line broken
▲
△
●
○
▲
△
▲
△
▲
△
SLV
RUN
OP
UNSTB
STB
Transmitter power
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
supply line broken
●
●
SLV
RUN
OP
UNSTB
STB
Receiver power
supply line broken
Synchronization
line broken
Anti Interference
●
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
●
●
●
SLV
RUN
OP
UNSTB
STB
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
SLV
RUN
OP
UNSTB
STB
●
●
CIR
SYNC
CIR
NOISE
SYNC
SLV
RUN
OP
UNSTB
STB
●
line broken (slave)*
Relay contact
Control unit
welded
Circuit damaged
Power supply line
broken
Power supply cut
off
●
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
▲
△
▲
△
▲
△
SLV
RUN
OP
UNSTB
STB
●
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
▲
△
●
○
▲
△
▲
△
▲
△
SLV
RUN
OP
UNSTB
STB
●
●
●
●
●
CIR
SYNC
CIR
NOISE
SYNC
●
●
●
●
●
SLV
RUN
OP
UNSTB
STB
：Flashing ●：Unilluminated △：Operation
▲：Operation depending on situation
Indicator
●
○POWER
●OUTPUT
●FAIL
●LOCKOUT
●
○POWER
●
○OUTPUT
●FAIL
●LOCKOUT
○POWER
●
○OUTPUT
●
●FAIL
●LOCKOUT
○POWER
●
○OUTPUT
●
●FAIL
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
○OUTPUT
●
○FAIL
●
●LOCKOUT
○POWER
●
●OUTPUT
●FAIL
○LOCKOUT
●
○POWER
●
●OUTPUT
●FAIL
○LOCKOUT
●
●POWER
●OUTPUT
●FAIL
●LOCKOUT
Control unit
Control output
Lockout output
Locked
Locked
Locked
Locked
Locked
Locked
Welded
(Note) “Locked” refers to a state in which the output relay stays open due to circuit failure.
(Note2) When the output circuit is damaged, the control output stays open.
*When the Anti Interference line is broken in the master/slave configuration, the indicator on the slave flashes and the slave control output relay opens.
486
SSF
■ Control Unit Operation and Output
The control unit outputs control and lockout signals depending on the detection by sensor and of different types of failure.
●
Control output
The control unit has duplicate circuits and the control output is composed of two output relays connected in series.
Contact closed
●
When light beams of all sensor axes are received (normal operation)
Contact open
When light beam of any axis is blocked
When control unit lockout has been tripped
● When circuit damage or disconnection has occurred in components
● When power has been supplied with the sensor wired in a wrong way
● When the power supply, 0V, detection output, synchronization or Mutual Interference prevention line, etc. has been
broken
● When the sensor output line has been short-circuited to the sensor power supply line (+V or 0V) of the control unit
●
●
Lockout output
Lockout is a feature that forces the control output relay to stay open when any internal failure has been detected.
The control unit SSF-C has completely duplicated internal circuitry and any inconsistency found is regarded as
failure, which trips lockout. In addition to lockout, the contact is opened for 2 seconds after power-up or when power
supply line to the control unit has been broken.
Light Curtain Sensors
●
Condition of lockout
(1) Inconsistency between the two control output relays
When either of the output relays does not operate due to welding of contact
(2) Inconsistency between the duplicate circuits
When the operation of the two circuits do not agree due to failure in output circuit components of the control unit
Notes on lockout release
Lockout can be released by pressing the CHECK switch on the control unit.
Before releasing lockout, identify and eliminate the cause of the lockout.
If lockout cannot be released by pressing the CHECK switch, the control unit output circuit may be damaged or the
output relay may be welded. Replace the control unit.
Use the lockout output for monitoring. Do not use the output for control.
For control, be sure to use the control output.
487
SSF
For Correct Use
●
●
●
●
Be sure to follow the instructions in the operation manual provided for correct use of the
product.
This sensor cannot be used as a power press safety device or other safety device to
prevent death or injury that requires conformity to domestic or overseas standards or
certification concerning protection of human body. Use for such purposes may lead to
death or serious injury.
This sensor is designed to detect an object passing over a certain point or line.
When using this sensor for safety purposes except those mentioned above, ensure safe
operation of the system as a whole including detection and control function.
Cable Extension
Figure 2
Receiver
Transmitter
Receiver
Transmitter
To extend the cable, use wires of at least 0.5 ㎜2 and limit the length as follows:
● Basic wiring
：within 25 m between the transmitter/receiver and control unit
(Figure 1)
Figure 1
● Synchronization wiring ：within 50 m between transmitter
and receiver (Figure 2)
● Power supply wiring for M/S wiring ：within 25 m between the two
25m or less
25m or less
control units (Figure 3)
Synchronization line
50m or less
black cable
Slave unit
gray cable
Receiver
Transmitter
gray cable
Receiver
Light Curtain Sensors
Transmitter
Figure 3
Master unit
black cable
Control unit
2
Notes on installation
●
●
2
9
7
0V, 25m or less
Interference prevention line 25m or less
When installing the sensor, make sure that the ends of the transmitter
and receiver with the cable are oriented either upward or downward.
The sensor does not function if the transmitter and receiver are not
oriented the same way.
The tightening torque for installing the sensor should be up to 2 N・m.
The tightening torque for installing the control unit with screws should
be up to 0.78 N・m.
Transmitter
cable
Receiver
cable
●
Wall, floor, machine, etc.
Reflected
light
Receiver
Any reflecting object (wall, floor, machine, etc.) within the
detecting range between the transmitter and receiver may allow
the light to go around the detection object, which is supposed to
block the light, and reach the receiver. Choose the installation
location carefully (Any glossy object such as stainless steel in the
surrounding area must be at least 300㎜ away from the optical
axes both vertically (up and down) and horizontally (left and
right).
Do not install the sensor in a place subject to steam, large
amount of dust or direct exposure to water or rain.
Transmitter
●
Detection object
Reflected
light
Wall, floor, machine, etc.
488
SSF
■ Dimensions (in ㎜)
SSF-T200 Series transmitter/receiver SSF-T400 Series transmitter/receiver
15.5
15.5
28
28
25
13
25
13
29.5
4−5×7
9
29.5
4−5×7
6
9
28
6
48
20
40
A
(Detecting
width)
Indicator
Receiver
(Green, Red, Green)
Transmitter
(Orange, Red)
Indicator
Receiver
(Red, Orange, Green)
Transmitter
(Orange, Green)
B C D
Indicator
Receiver
(Green, Red, Green)
Transmitter
(Orange, Red)
Indicator
Receiver
(Red, Orange, Green)
Transmitter
(Orange, Green)
20
26
9
6
210
φ14
(in ㎜)
Dimensions of portions
Model
SSF-T8
SSF-T16
SSF-T24
SSF-T32
SSF-T40
SSF-T48
SSF-T56
SSF-T64
9
φ6.8
210
●
26
（44）
φ6.8
φ14
40
A
140
300
460
620
780
940
1100
1260
B
194
354
514
674
834
994
1154
1314
C
212
372
532
692
852
1012
1172
1332
D
224
384
544
704
864
1024
1184
1344
Model SSF-C (Control unit)
Display
panel
32
8.2
Cover
80
4.5
●
(in ㎜)
Dimensions of portions
Model
SSF-T404
SSF-T408
SSF-T412
SSF-T416
SSF-T420
SSF-T424
SSF-T428
SSF-T432
SSF-T436
SSF-T440
SSF-T444
SSF-T448
SSF-T452
SSF-T456
SSF-T460
SSF-T464
A
120
280
440
600
760
920
1080
1240
1400
1560
1720
1880
2040
2200
2360
2520
B
194
354
514
674
834
994
1154
1314
1474
1634
1794
1954
2114
2274
2434
2594
C
212
372
532
692
852
1012
1172
1332
1492
1652
1812
1972
2132
2292
2452
2612
D
224
384
544
704
864
1024
1184
1344
1504
1664
1824
1984
2144
2304
2464
2624
Light Curtain Sensors
（44）
6
A B C D
(Detecting
width)
Cable with connector (accessory)
6.5
70
4.5
φ14
φ6.8
78
44
5m
6.5
22
Mounting hole dimensions
SS-H5L (covering: gray)
SS-H5R (covering: black)
To download CAD data including dimensions, please visit www.takex-elec.co.jp/index_e.html.
489