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INSTRUCTION MANUAL
Safty Door Switch with Key
SG-B2 Series
MJE-SGB2 No.0054-17V
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.
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.
Warning notices are used to emphasize that improper operation may cause severe personal
injury or death.
1
Type
Key removal
Door monitor
Lock monitor
Model No.
Rear unlock
Cable length
position
contacts
contacts
SG-B2-K2AC-5 LOCK and UNLOCK
SG-B2-K2BC-5
UNLOCK
1NO + 1NC
1NO + 1NC
SG-B2-K2CC-5
LOCK
Without rear
manual unlock
SG-B2-K2AD-5
LOCK and UNLOCK
SG-B2-K2BD-5
UNLOCK
2NC
2NC
5m
SG-B2-K2CD-5
LOCK
SG-B2-K2AD-L5
LOCK and UNLOCK
SG-B2-K2BD-L5
UNLOCK
2NC
2NC
Push button
SG-B2-K2CD-L5
LOCK
2
Specifications and Ratings
Applicable Standards
ISO14119, EN1088
IEC60947-5-1, EN60947-5-1
GS-ET-19, UL508, CSA C22.2 No.14
Standards for Use
IEC60204-1/EN60204-1
Applicable Directives
Low Voltage Directive (2014/35/EU)
Machinery Directive (2006/42/EC)
Operating Temperature
-25 to +70℃ (no freezing)
Operating Humidity
45 to 85％RH (no condensation)
Storage Temperature
-40 to +80℃ (no freezing)
Pollution Degree
3 (Inside2)
Altitude
2000m maximum
Impulse withstand voltage (Uimp)
2.5kV
Rated Insulation voltage (Ui)
250V *2
2.5A
Thermal Current <Ith>
-25℃ < Operating temperature < 60℃: 2.5A
60℃ < Operating temperature < 65℃: 1.5A
65℃ < Operating temperature < 70℃: 1.0A
30V
125V
250V
Contact Ratings
AC Resistive load (AC12)
-
(Reference Values)
2.5A
1.5A
< Ue, Ie >
Inductive load (AC15)
-
1.5A
0.75A
DC Resistive load (DC12)
2.5A
1.1A
0.55A
Inductive load (DC13)
2.3A
0.55A
0.27A
Operating Frequency
900 operations/hour
Operating Speed
0.05 to 1.0 m/s
B
2,000,000 (EN ISO 13849-1 Annex C Table C.1)
10d
Mechanical durability
1,000,000 operations min. (GS-ET-19)
the Rear Unlock Button: 3000 operations min. (Type SG-B2-□-L5)
Electrical Durability
100,000 operations min. (AC-12 250V ・ 1A)
1,000,000 operations min. (AC/DC 24V 100mA)
(900 operations / hour)
Class of Protection
ClassⅡ (IEC61140) *3
Actuator Tensile Strength
1,400N min. (GS-ET-19)*4
when Locked
(500N min. : SG-K24 actuator)
11 mm min. (actuator: SG-K21)
Direct Opening Travel
12 mm min. (for other actuators)
Direct Opening Force
80N min.
Contact Resistance
500 mΩmax. (initial value, 3m cable)
Degree of Protection
IP65 (IEC60529)
Shock Resistance
Operating extremes: 100 m/s , Damage limits: 1000 m/s
2
2
Operating extremes: 10 to 55 H, amplitude 0.35 mm minimum
Vibration Resistance
Damage limits: 30 Hz, amplitude 1.5 mm minimum
Short-circuit Protective Device
Use 250V / 10A fast acting type fuse
Operating Specifications
2 Positions
Mechanical Durability
100,000 operations min.
Key Operating Durability
10,000 operations min.
Key Tensile Strength
1.0N・m min.
Direct Opening Force
0.6N・m min.
Direct Opening Degree
60° min.
*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.
Ratings approved by safety agencies
●
(1)TÜV rating
AC-15 250V/0.75A
(2)UL , c-UL rating
AC 125V/1.5A Pilot Duty
DC-13 125V/0.22A
DC 30V/2.3A Pilot Duty
DC-13 30V/2.3A
3
Mounting Examples
• 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.
(Examples of Mounting on Sliding Doors)
(Examples of Mounting on Hinged Doors)
SG-K21S
Slide Actuator
SG-K22
Actuator
Door
Door
SG-K21
Actuator
SG-B2
Safety Switch
Latch
Door Stop
SG-B2
Safety Switch
The SG-B2 Head
When Shipped
Alternative Mounting Directions
• 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.
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.
• 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.
Actuator
Actuator
When the SG-B2-K□
Unlocked
Locked
head is removed
Contact Closed
Contact Open
LOCK
UNLOCK
Monitor Circuit:
PK
41
42
PK/WH
51
52
Monitor Circuit:
BN
BN/WH
(Type SG-B2-K□-L5)
Installing the manual rear unlocking button
●
Panel
•
After installing the interlock switch on the
panel, put the manual rear unlocking
Rod
button (supplied ) on the rod on the back
the manual rear
of the interloc k switch, and fasten using
unlocking button
the mounting screw. When installin g on
the aluminum frame of the thickness of
Mounting screw
6mm or more, use the rear unlocking
(M3 sems screw)
button for frame kit (MS-SG-23 /
MS-SG-22) sold separately.
SG-B2-K□-L5
Safety switch
•
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.
4
Precautions for Operation
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.
Conduit
•
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.
CAUTION
•
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.
• 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
Lock Release
hedge (the dangerous area).
• The lock is released when the Rear Unlock Button is
pressed, and the door can be opened.
the Rear Unlock Button
• 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.
CAUTION
•
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.
5
Adjustments
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.
When the center of the hinged door is
When the center of the hinged door is on
on the extension line of the actuator
the extension line of the contact surface of
mounting surfase.
actuator and safety switch.
Door Hinge
Door Hinge
Door Hinge
Door Hinge
Minimum Radius
R1
R2
R3
R4
SG-K22
230 mm
260 mm
170 mm
190 mm
SG-K22A
Mounting centers:12 mm
230 mm
120 mm
260 mm
140 mm
Mounting centers:20 mm
310 mm
170 mm
SG-K24
70 mm
70 mm
50 mm
50 mm
(Horizontal Swing)
(Vertical Swing)
(Horizontal Swing)
(Vertical Swing)
CAUTION
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.
(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
6
Contact Operation and Wiring
Contact Configuration and Operation
●
Type *1
Contact Congifiguration
Contact Operation(reference)
0 (Actuator Mounting Reference Position)
A2
A1
WH
BK
（+）
（-）
Approx. 3.3 (Lock)
Approx.
5.3
UNLOCK
LOCK
Approx.
6.9
Approx.26.4 (Travel:mm)
11
12
BU/WH
PK
41
42
PK/WH
Monitor Circuit:
11-12
23
24
OG/WH
SG-B2-□-C
23-24
Monitor Circuit:
41-42
BN
53
54
BN/WH
Monitor Circuit:
53-54
11
12
41
42
Monitor Circuit:
BU/WH
PK
PK/WH
11-12
21
22
OG/WH
21-22
SG-B2-□-D
Monitor Circuit:
BN
51
52
BN/WH
41-42
Monitor Circuit:
51-52
The Actuator is inserted, and SG-B2 is locked.
(Actuator Completely Inserted)
(Actuator Pulled Out)
Operation Cycle
●
Door States
Closed
Closed
Open
Closed
Main Circuit
11-42
Closed
Open
Open
Open
21-52
Monitor Circuit
11-12
Closed
Closed
Open
Closed
21-22
Monitor Circuit
23-24
Open
Open
Closed
Open
Monitor Circuit
41-42
Closed
Open
Open
Open
51-52
Monitor Circuit
53-54
Open
Closed
Closed
Closed
Lock Position
Unlock Position
Unlock Position
Lock Position
Key Position
/Returned status
/Returned status
/Returned status
/When operating
/Rear Unlock Button
the Button
Door is unlocked.
Door is unlocked.
Door is locked.
The machine can
The machine can
The machine can
not be operated.
The machine can
be operated.
not be operated.
not be operated.
●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.)
Safety Switch
Safety Switch
Door Stop
Actuator
Actuator
Stop
Stop
Actuator
Cover
SG-K21
SG-K22
Actuator
Door Stop
Actuator
●Actuator Mounting Tolerance
Center
Safety
• Mounting tolerance of the actuator is 1.0 mm in the
Switch
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.
1.0 mm
1.0 mm
(Actuator deviation) ＋ (Door movement)
3.3 mm
4.6 mm
SG-K21
≦ 3.3mm
SG-K22
SG-K21A
≦ 4.6mm
SG-K22A
SG-K24
≦ 4.6mm
SG-K21
SG-K22
Recommended Screw Tightening Torque
●
Name or Use
Screw Tightening Torque
For mounting the safety switch (M4 screw) *5
1.8 to 2.2 N∙m
For mounting the actuator
(SG-K21: two M4 screws) *5
1.8 to 2.2 N∙m
(SG-K22: two M4 Phillips screws)
0.8 to 1.2 N∙m
(SG-K21A / SG-K22A: two M4 screws) *5,6
1.0 to 1.5 N∙m
(SG-K24: two M4 screws) *5
1.0 to 1.5 N∙m
For mounting the SG-B2 head (M3)
0.9 to 1.1 N∙m
For mounting the manual rear unlocking button (M3 sems screw)
0.5 to 0.7 N∙m
CAUTION
*5: The above recommended tightening torques of the mounting screws are
M4 Screw
the values confirmed with hex socket head bolts.
Washer
When other screws are used and tightened to a smaller torque, make
Rubber Cushions
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
Door
attached washers, fasten the actuator securely on the door.
M4 mounting hole
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.
Contact Closed
Colored Insulator
Contact Open
４
３
６
Contact
operation
shows
the
７
Jacket
５
８
９ 11
SG-K21 actuator.
10
12
(For other actuators, add 1.3 mm
２ １
to contact operation.)
No.
Insulator Color
No.
Insulator Color
1
White
7
Blue / White
2
Black
8
Orange / White
3
Brown
9
Pink
When using the outputs from the
4
Blue
10
Pink / White
SG-B2 safety switch as inputs to
5
Brown / White
11
Gray
safety circuits,connect the door
6
Orange
12
Gray / White
monitor circuits (11-12, 21-22)
and lock monitor circuits(41-42,
Terminal Number Identification
●
51-52) in series. (GS-ET-19)
•
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.
Circuit No.
Insulator Color
1 1
Blue
12
Blue / White
21, 23
Orange
22, 24
Orange / White
51, 53
Brown
52, 54
Brown / White
41
Pink
42
Pink / White
7
Dimensions and Mounting (mm)
●
Dimensions
42.2
41.5
26.4
to (45.5)
73.2
to (46.1)
6.2
5.2
SG-K21 Actuator
36.2
106
SG-K22
Actuator stop *7
145.7
(6.3)
Actuator
(supplied with actuator)
7.6
±1
Type：SG-B2-□-L5
41 to
73.2
(44.3)
6.2
5.2
38
36.2
106
145.7
(6.3)
SG-K21
Actuator
Key
6
±1
Slot plug
Note: Use the attached
slot plug to close the
Manual rear unlocking button
unused
actuator
φ30
Manual rear
entry slot.
unlocking button
13.4
Main body mounting hole layout
●
13.4
106
4-M4
(φ4.3 or M4 tapped)
Type：SG-K21A
Type：SG-K22A
when installed
on the door(39.7)
when installed
7.3
43.8
on the door(11.2)
0.8
15.3
0.8
A
Actuator stop *7
Rubber Cushions
Washer(supplied with actuator)
(supplied with actuator)
when installed
on the door(5)
0.8
Washer(supplied with actuator)
2-Ø10
B
B
2-Ø 9
Rubber Cushions
Actuator stop *7
(supplied with actuator)
* Mounting pitch is set to 12 mm in factory. When setting
* When the mounting pitch is 12 mm (factory setting), the actuator
the mounting pitch to 20 mm, widen the pitch of rubber
has movement flexibility to the directions shown in A and B .
cushions to 20 mm.
* When the mounting pitch is 20 mm, the actuator has movement
* The actuator has movement flexibility to the directions
flexibility to the directions shown in B . Side the rubber cushions
shown in B .
together with the screws.
Type：SG-K24
(horizontal adjustment) *8
Angle adjusting screw
(M3 hexagon socket set screw)
3
Actuator mounting hole layout
Actuator stop *7
Joint
(supplied
with actuator)
Base
4-M4
(φ4.3 or M4 tapped)
15
7
1
18.5
29
3.6
(vertical adjustment) *8
Actuator stop *7
Joint
(supplied with
actuator)
Joint
0.8
Base
Angle adjusting screw
(M3 hexagon socket set screw)
(horizontal adjustment)
(vertical adjustment)
*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.
8
Precaution for Disposal
Dispose of the SG-B2 safety switch as an industrial waste.
9
Contact infomation for CE
Panasonic Marketing Europe GmbH Panasonic Testing Center
Winsbergring 15, 22525 Hamburg,Germany
http://panasonic.net/id/pidsx/global
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
For sales network, please visit our website.
PRINTED IN JAPAN
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
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