●
SAFETY PRECAUTIONS
In this operating instruction sheet, safety precautions are categorized to Caution:
Caution notices are used where inattention might cause personal injury or damage to equipment.
1
Type
SG-B2-K□-L5
Safety switch
the manual rear
unlocking button
Mounting screw
(M3 sems screw)
Panel
Rod
CAUTION
4
Precautions for Operation
CAUTION
5
Adjustments
4.6 mm
SG-K22
SG-K21
3.3 mm
Safety
Switch
Center
1.0 mm
1.0 mm
●
Recommended Screw Tightening Torque
CAUTION
CAUTION
SG-K22
SG-K22A
Mounting centers:12 mm
Mounting centers:20 mm
SG-K24
R1
230 mm
230 mm
310 mm
70 mm
(Horizontal Swing)
R2
260 mm
260 mm
70 mm
(Vertical Swing)
R3
170 mm
120 mm
170 mm
50 mm
(Horizontal Swing)
R4
190 mm
140 mm
50 mm
(Vertical Swing)
Minimum Radius
Actuator
Stop
Actuator
Cover
Safety Switch
Door Stop
Safety Switch
Actuator
Stop
SG-K21
Actuator
SG-K22
Actuator
Door Stop
(Actuator deviation)
＋
(Door movement)
≦
3.3mm
≦
4.6mm
≦
4.6mm
SG-K21
SG-K22
SG-K21A
SG-K22A
SG-K24
●
Contact Configuration and Operation
6
Contact Operation and Wiring
●
Operation Cycle
Door States
Main Circuit
Monitor Circuit
Monitor Circuit
Monitor Circuit
Monitor Circuit
Key Position
/Rear Unlock Button
11-42
21-52
11-12
21-22
23-24
41-42
51-52
53-54
Closed
Closed
Closed
Open
Closed
Open
Lock Position
/
Returned status
Door is locked.
The machine can
be operated.
Open
Open
Open
Closed
Open
Closed
Unlock Position
/
Returned status
The machine can
not be operated.
Closed
Open
Closed
Open
Open
Closed
Unlock Position
/
Returned status
Door is unlocked.
The machine can
not be operated.
Closed
Open
Closed
Open
Open
Closed
Lock Position
/When operating
the Button
Door is unlocked.
The machine can
not be operated.
Insulator Color
White
Black
Brown
Blue
Brown / White
Orange
Insulator Color
Blue / White
Orange / White
Pink
Pink / White
Gray
Gray / White
No.
1
2
3
4
5
6
No.
7
8
9
10
11
12
Colored Insulator
Jacket
２ １
10
12
９
11
８
７
６
４
３
５
Circuit No.
11
12
21, 23
22, 24
51, 53
52, 54
41
42
Insulator Color
Blue
Blue / White
Orange
Orange / White
Brown
Brown / White
Pink
Pink / White
Lock Release
the Rear Unlock Button
13.4
2
0
2
2
M
4
106
φ
30
27
7.
7
21.
5
33
5
6
±
1
20
40
11
±
1
R2.
2
73.2
36.2
20
28
106
145.7
(6.3)
20 3
5
1
1
6.2
5.2
□
30
R2.
2
73.2
1
1
35
20
(6.3)
145.7
106
36.2
28 20
26.4
6.2
5.2
30
□
53.
7
76.
7
40
20
11
±
1
5
33
When Shipped
Alternative Mounting Directions
(Examples of Mounting on Sliding Doors)
(Examples of Mounting on Hinged Doors)
Door Stop
Door
SG-K21
Actuator
Latch
SG-B2
Safety Switch
SG-K21S
Slide Actuator
SG-K22
Actuator
Door
SG-B2
Safety Switch
3
Mounting Examples
Actuator
Locked
When the
SG-B2-K□
head is removed
Monitor Circuit:
UNLOCK
Monitor Circuit:
Contact Closed
Contact Open
Actuator
Unlocked
LOCK
BN
PK
BN/WH
PK/WH
51
42
52
41
Conduit
30 mm minimum radius
CAUTION
8
Precaution for Disposal
Dispose of the
SG-B2
safety switch as an industrial waste.
Slot plug
4-M4
(
φ
4.3 or M4 tapped)
●
Main body mounting hole layout
Dimensions
SG-K22
Actuator
106
20 to 22
42.2
to (45.5)
41 to
(44.3)
40.3 to (44.9)
41.5
to (46.1)
29.6
12.6
±
1
7.6
±
1
20
13.4
Manual rear unlocking button
0.8
2
R2.1
3.6
1
20
°
29
18.5
3
7
15
49
38
26
23
φ
18
hole for the
manual rear
unlocking button(reference)
Joint
(horizontal adjustment) *8
(vertical adjustment) *8
( M4 holes )
Base
Actuator stop *7
(supplied with
actuator)
Angle adjusting screw
Type
：
SG-B2-□-L5
Type
：
SG-K24
Base
Angle adjusting screw
(M3 hexagon socket set screw)
38
Type
：
SG-K21A
Type
：
SG-K22A
Actuator stop *7
(supplied
with actuator)
Manual rear
unlocking button
4-M4
(
φ
4.3 or M4 tapped)
Actuator mounting hole layout
(M3 hexagon socket set screw)
Joint
7
Dimensions and Mounting (mm)
20
°
SG-K21
Actuator
Actuator stop *7
(supplied with actuator)
SG-K21
Actuator
16
1.8
38
Key
Warning notices are used to emphasize that improper operation may cause severe personal
injury or death.
A
B
(20
)
12
2-
Ø4.3
2-Ø
10
2-Ø
9
when installed
on the door(5)
when installed
on the door(39.7)
when installed
on the door(11.2)
0.8
2
0.8
8.5
15.8
15
30
Actuator stop *7
(supplied with actuator)
Actuator stop *7
(supplied with actuator)
Rubber Cushions
Rubber Cushions
Washer(supplied with actuator)
Washer(supplied with actuator)
B
the door(5)
when installed on
2-Ø 9
2-Ø10
0.8
(20)
0.8
12
2
2- Ø4.3
15
15.3
43.8
7.3
30
(horizontal adjustment)
(vertical adjustment)
Joint
Thank you very much for purchasing Panasonic products. Please read this Instruction
Manual carefully and thoroughly for the correct and optimum use of this product. Kindly
keep this manual in a convenient place for quick reference.
INSTRUCTION MANUAL
Safty Door Switch with Key
SG-B2
Series
MJE-SGB2 No.0054-17V
Model No.
Key removal
position
Cable length
SG-B2-K2AC-5
LOCK and UNLOCK
SG-B2-K2BC-5
5m
SG-B2-K2BD-5
SG-B2-K2AD-L5
SG-B2-K2CD-5
SG-B2-K2BD-L5
SG-B2-K2CD-L5
SG-B2-K2CC-5
Door monitor
contacts
2NC
2NC
1NO + 1NC
2NC
2NC
1NO + 1NC
Lock monitor
contacts
Push button
Without rear
manual unlock
Rear unlock
UNLOCK
LOCK and UNLOCK
UNLOCK
LOCK
LOCK
UNLOCK
LOCK
LOCK and UNLOCK
SG-B2-K2AD-5
●
2
Specifications and Ratings
Applicable Standards
Applicable Directives
Thermal Current <Ith>
Contact Ratings
(Reference Values)
< Ue, Ie >
Class of Protection
Operating Frequency
Operating Speed
Mechanical durability
Actuator Tensile Strength
when Locked
Direct Opening Travel
Direct Opening Force
Contact Resistance
Degree of Protection
Short-circuit Protective Device
IEC60204-1/EN60204-1
2.5A
AC Resistive load (AC12)
Inductive load (AC15)
DC Resistive load (DC12)
Inductive load (DC13)
Class
Ⅱ
(IEC61140) *3
900 operations/hour
0.05 to 1.0 m/s
1,000,000 operations min. (GS-ET-19)
the Rear Unlock Button: 3000 operations min. (Type
SG-B2-□-L5
)
1,400N min. (GS-ET-19)*4
(500N min. :
SG-K24
actuator)
11 mm min. (actuator:
SG-K21
)
12 mm min. (for other actuators)
80N min.
500 m
Ω
max. (initial value, 3m cable)
IP65 (IEC60529)
Use 250V / 10A fast acting type fuse
250V
1.5A
0.75A
0.55A
0.27A
Standards for Use
Key
ISO14119, EN1088
IEC60947-5-1, EN60947-5-1
GS-ET-19, UL508, CSA C22.2 No.14
Low Voltage Directive (2014/35/EU)
Machinery Directive (2006/42/EC)
Operating Condition
-25 to +70
℃
(no freezing)
Electrical Durability
100,000 operations min. (AC-12 250V
・
1A)
1,000,000 operations min. (AC/DC 24V 100mA)
(900 operations / hour)
Operating Temperature
45 to 85
％
RH (no condensation)
Operating Humidity
-40 to +80
℃
(no freezing)
Storage Temperature
3 (Inside2)
Pollution Degree
2000m maximum
Altitude
2.5kV
Impulse withstand voltage (Uimp)
250V
*2
Rated Insulation voltage (Ui)
Mechanical Durability
Key Operating Durability
Key Tensile Strength
Direct Opening Force
Direct Opening Degree
Operating Specifications
2 Positions
100,000 operations min.
10,000 operations min.
1.0N
・
m min.
0.6N
・
m min.
60
°
min.
B
10d
2,000,000 (EN ISO 13849-1 Annex C Table C.1)
Shock Resistance
Operating extremes: 100 m/s , Damage limits: 1000 m/s
Vibration Resistance
Operating extremes: 10 to 55 H, amplitude 0.35 mm minimum
Damage limits: 30 Hz, amplitude 1.5 mm minimum
2
2
125V
2.5A
1.5A
1.1A
0.55A
30V
-
-
2.5A
2.3A
-25℃
< Operating temperature < 60
℃: 2.5A
60℃
< Operating temperature < 65
℃: 1.5A
65℃
< Operating temperature < 70
℃: 1.0A
Ratings approved by safety agencies
(1)TÜV rating
(2)UL , c-UL rating
AC-15 250V/0.75A
DC-13 125V/0.22A
DC-13 30V/2.3A
AC 125V/1.5A Pilot Duty
DC 30V/2.3A Pilot Duty
*2: Ratings approved by UL,c-UL
：
125V
*3: Basic insulation of 2.5kV impulse withstand voltage is ensured between different contact
circuits and between contact circuits and LED or solenoid in the enclosure. When both
SELV (safety extra low voltage) or PELV (protective extra low voltage) circuits and other
circuits (such as 230V AC circuits) are used for the solenoid power and contact circuits at
the same time, the SELV or PELV requirements are not met any more.
*4: The actuator locking strength is rated at 1400N of static load. Do not apply a load higher
than the rated value. When a higher load is expected to work on the actuator, provide an
additional system consisting of another safety switch without lock or a sensor to detect
door opening and stop the machine.
• Install the interlock switch on the immovable machine or guard, and install the actuator on the
movable door. Do not install both interlock switch and actuator on the movable door, otherwise
failure will occur.
• See the figures below.
The SG-B2 Head
• Changing the Mounting Directions of the
SG-B2
Head.
The head of the
SG-B2
can be
mounted in four directions by removing
the four screws from the corners of the
SG-B2
head.
•
Head Removal Detection Function
(Type
SG-B2-K□
)
When the key is operated, the operation of the monitor circuit (41-42) and monitor circuits (51-52)
are the same. However, when the head is removed, disparity is detected (41-42 : OFF, 51-52: ON).
The disparity of the contacts detects the removal of the head.
(Type
SG-B2-K□-L5
)
●
Installing the manual rear unlocking button
•
After installing the interlock switch on the
panel, put the manual rear unlocking
button (supplied ) on the rod on the back
of the interloc k switch, and fasten using
the mounting screw. When installin g on
the aluminum frame of the thickness of
6mm or more, use the rear unlocking
button for frame kit (
MS-SG-23
/
MS-SG-22
) sold separately.
●
For Mounting
•
Do not apply an excessive shock to the safety switch when opening or closing the door.
A shock to the safety switch exceeding 1,000 m/s
2
may cause failure.
•
Regardless of door types, do not use the safety switch as a door lock. Install a sepatate
lock as shown in 3.
•
Do not open the lid of the switch. Loosening the screws may cause damage to the switch.
•
Entry of foreign objects in the actuator entry slot may affect the mechanism of the switch
and cause a breakdown. If the operating atmosphere is contaminated, use a protective
cover to prevent the entry of foreign objects into the switch through the actuator entry
slots.
•
Do not fasten and loosen the conduit at the bottom of the safety
switch.
•
When wiring, make sure that liquid such as water and oil does not
intrude from the tip of cable.
•
When bending the cable during wiring, secure the cable radius of
30 mm at the minimum.
•
Use the dedicated actuators only. Other actuators will cause
damage to the switch.
(Type
SG-K24
)
●
Adjusting the Angle Adjustable (vertical/horizontal) Actuator
•
Using the angle adjustment screw (M3 hexagon socket set screw), the actuator angle can
be adjusted up to 20°(refer to dimensions).
•
The larger the actuator angle, the smaller the applicable radius of the door swing.
After installing the actuator, open the door. Then adjust the actuator angle so that the
actuator enters the entry slot of the safety switch properly.
•
After adjusting the actuator angle, apply loctite or the like on the adjustment screw to
prevent loosening.
•
Use screw locking agent that is compatible with the base material.
Base: PA66 (66 nylon) of glass reinforced grade
Angle adjustment screws: stainless steel
•
Do not mount the interlock switch facing down as shown in
the figure on the right. The key may fall due to vibration.
●
Key
Be sure to take the following precautions. Otherwise,
failure or damage may occur.
• When using the key, insert the key all the way.
• Do not apply a rotative force when inserting or removing
the key. Also, do not pull the key during operation.
Otherwise failure or damage may occur.
•
Other than the standard key, there are 15 key variations.
Be sure to use a key and cylinder with the same number.
• Do not apply excessive force to the key. Otherwise
failure or damage may occur.
• With the key in the UNLOCK position, do not turn the
key to the LOCK position with the actuator removed
(door open). Otherwise failure or damage may occur.
(Type
SG-B2-K□-L5
)
●
For the Rear Unlock Button
• The Rear Unlock Button is used for an emergency
escape when the worker is confined in the safety
hedge (the dangerous area).
• The lock is released when the Rear Unlock Button is
pressed, and the door can be opened.
• To return to locked status, pull back the button. While
the Rear Unlock Button is depressed, the main circuit
remains open and the door is unlocked.
●
Mounting Directions of the SG-B2 Head
•
When replacing the
SG-B2
head, make sure that no foreign object enters into the safety
switch. Tighten the screws tightly, without leaving space between the head and body,
otherwise the safety switch may malfunction.
Don't remove the screws of head expect when the mouting directions of head is changed.
•
After installing the manual rear unlocking button, apply Loctite to the screw so that the
screw does not become loose. The base is made of glass-reinforced PA66 (66 nylon). The
mounting screw is iron. Take the compatibility of plastic material and Loctite into
consideration.
•
Regardless of door types, do not use the safety switch as a door stop.
Install a mechanical door stop to the end of the door to protect the safety switch against
excessive force.
• Mount the actuator so that it will not hit the operator when the door is open, otherwise injury may
be cvaused.
• Turn off the power to the safety switch before starting installation, removal, wiring, maintenance,
and inspection on the safety switch. Failure to turn power off may cause electrical shocks or fire
hazard.
• Mount the actuator so that it will not hit the operator when the door is open, otherwise injury may
be cvaused.
• Pay attention to the management of spare actuator. Safety function of door interlock switch will
be lost in case the spare actuator is inserted into the interlock switch.
• Ensure that the actuator is firmly fastened to the door (welding, rivet, special screw) in the
appropriate location, so that the actuator cannot be removed easily.
• Do not cut or remodel the actuator, otherwise failure will occur.
• If multiple safety components are wired in series, the Performance Level to EN ISO 13849-1 will
be reduced due to the restricted error detection under certain circumstance.
• The entire concept of the control system, in which the safety component is integrated, must be
validated to EN ISO 13849-2.
•
Turn off the power to the safety switch before starting installation, removal, wiring,
maintenance, and inspection on the safety switch. Failure to turn power off may cause
electrical shocks or fire hazard.
•
Do not disassemble or modify the switch. Also do not attempt to disable the interlock switch
function, otherwise a breakdown or an accident will result.
•
Install the
SG-B2
to ensure that a worker can operate the Rear Unlock Button from inside
the safety hedge (the dangerous area). It is dangerous to install the
SG-B2
in the position
where the Rear Unlock Button can be operated from outside the the safety hedge (the
dangerous area), because it is possible to unlock while the machine is operating.
•
Use hand to press the button, and do not use a tool. Do not apply excessive force to the
Rear Unlock Button.
The values shown above are based on the condition that the actuator enters and exits the actuator
entry slot smoothly when the door is closed or opened. Since there may be deviation or dislocation
of the hinged door, make sure of correct operation in the actual application before installation.
●
SG-K21A / SG-K22A
• When there is a displacement of safety switch and actuator, the actuator may hit the entry
slot of safety switch hardly, thus damaging the entry slot and actuator. The rubber
cushions on the actuator prevent the actuator from damaging the entry slit by absorbing
the shock with movement flexibility. Do not, however, exert excessive shocks, otherwise
the failure of safety switch may be caused.
• The rubber cushions may deteriorate depending on the operating environment and
conditions.
Immediately replace the deformed or cracked rubber cushions with new ones.
●
Actuator Mounting Referance Position
• As shown below, the mounting reference position of the actuator inserted into the safety
switch is:
The actuator and actuator cover touches the actuator stop placed on the safety switch
lightly.
(After mounting the actuator, remove the actuator stop from the safety switch.)
●
Actuator Mounting Tolerance
• Mounting tolerance of the actuator is 1.0 mm in the
four lateral directions.
• When closing the door, the actuator is inserted and
locked within a certain distance from the reference
position. After the actuator has been locked, the
contact operation is not affected by the actuator
movement in the locked state.
●
Minimum Radius of Hinged Door
• When using the safety switch for a hinged door, the minimum radius of the applicable
door is shown in the following figures.
Door Hinge
Door Hinge
Door Hinge
Door Hinge
R1
Minimum Radius
R3
Minimum Radius
R2
Minimum Radius
R4
Minimum Radius
When the center of the hinged door is
on the extension line of the actuator
mounting surfase.
When the center of the hinged door is on
the extension line of the contact surface of
actuator and safety switch.
1.8 to 2.2 N∙m
Screw Tightening Torque
For mounting the safety switch (M4 screw) *5
0.9 to 1.1 N∙m
For mounting the
SG-B2
head (M3)
0.5 to 0.7 N∙m
For mounting the manual rear unlocking button (M3 sems screw)
1.8 to 2.2 N∙m
0.8 to 1.2 N∙m
1.0 to 1.5 N∙m
1.0 to 1.5 N∙m
For mounting the actuator
(
SG-K21
: two M4 screws) *5
(
SG-K22
: two M4 Phillips screws)
(
SG-K21A
/
SG-K22A
: two M4 screws) *5,6
(
SG-K24
: two M4 screws) *5
Name or Use
M4 mounting hole
Door
M4 Screw
Rubber Cushions
Washer
*5: The above recommended tightening torques of the mounting screws are
the values confirmed with hex socket head bolts.
When other screws are used and tightened to a smaller torque, make
sure that the screws do not come loose after mounting.
*6: In the case of
SG-K21A
or
SG-K22A
, Using two M4 screws and two
attached washers, fasten the actuator securely on the door.
CAUTION
(Actuator Completely Inserted)
(Actuator Pulled Out)
Contact Operation(reference)
Approx. 3.3 (Lock)
UNLOCK
LOCK
Contact Closed
Type *1
Contact Congifiguration
Contact Open
Approx.26.4 (Travel:mm)
0 (Actuator Mounting Reference Position)
Approx.
5.3
Approx.
6.9
PK/WH
PK
21
11
BN/WH
BN
BU/WH
OG/WH
22
12
51
41
52
42
PK
23
11
PK/WH
BN/WH
BN
BU/WH
OG/WH
12
24
41
53
42
54
The A
ctuator is inserted, and
SG-B2
is locked.
Monitor Circuit:
Monitor Circuit:
Monitor Circuit:
Monitor Circuit:
Monitor Circuit:
Monitor Circuit:
SG-B2-□-C
SG-B2-□-D
11-12
23-24
41-42
53-54
11-12
21-22
41-42
51-52
BK
WH
A2
A1
（-）
（+）
Contact operation shows the
SG-K21
actuator.
(For other actuators, add 1.3 mm
to contact operation.)
When using the outputs from the
SG-B2
safety switch as inputs to
safety circuits,connect the door
monitor circuits (11-12, 21-22)
and lock monitor circuits(41-42,
51-52) in series. (GS-ET-19)
●
Wiring
•
Cable specifications UL style 2464 (80
℃
300V)
12c × No.22 AWG
•
Wire identification
Wires are identified by the color and white line printed on
the wire.
•
Do not use wire which is Black, White, Gray, Gray /
White.
●
Terminal Number Identification
•
When wiring, the terminal number on each contact is
identified by wire color.
The following shows the identification of terminal number
•
When wiring, cut unnecessary wires such as dummy
insulator (white) and/or unused wires to avoid incorrect
wiring.
Note: Use the attached
slot plug to close the
unused actuator
entry slot.
* Mounting pitch is set to 12 mm in factory. When setting
the mounting pitch to 20 mm, widen the pitch of rubber
cushions to 20 mm.
* The actuator has movement flexibility to the directions
shown in B .
* When the mounting pitch is 12 mm (factory setting), the actuator
has movement flexibility to the directions shown in A and B .
* When the mounting pitch is 20 mm, the actuator has movement
flexibility to the directions shown in B . Side the rubber cushions
together with the screws.
*7 The actuator stop and The
Stopper film
are used when adjusting the actuator position.
Remove after the actuator position is determined.
*8 The direction of adjustable angle can be changed (vertical or horizontal) by changing the
insertion direction of the joint (white plastic part).
Do not lose the joints. Actuators do not operate normally without a joint.
9
Contact infomation for CE
Panasonic Marketing Europe GmbH Panasonic Testing Center
Winsbergring 15, 22525 Hamburg,Germany
http://panasonic.net/id/pidsx/global
PRINTED IN JAPAN
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
Overseas Sales Division (Head Office)
2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan
Phone: +81-568-33-7861 FAX: +81-568-33-8591
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