Omron A22TK User manual

1
Safety Key Selector Switch
A22TK
Key-type Selector Switch with Direct
Opening Mechanism
• Selector Switch for secure equipment activation during
maintenance
• 30 types of exclusive keys make it more difficult to disable.
• The trapped key of the D4JL Guard Lock Safety-door Switch
hasthesameshape asthe lockoutkeyof theD4GL-SK10-LK@,
D4SL-NSK10-LK@ Slide Key Unit. Units can be combined to
improve safety.
(Specify the same key type.)
• Common to the switch part of Emergency Stop Switch A22E.
(Non-lighted model only)
Features
BecausetheA22TKSafety KeySelector Switchusesthesame keyastheGuard LockSafety-door Switch,the operatoris preventedfromforgetting
to remove the key. The result is a safer working environment when performing maintenance.
For safety precautions for all pushbutton switches, refer to the website
at: www.ia.omron.com, and “Safety Precautions” on page 12 in this
catalog.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Broad range of applications include use with door locks, mode switching, and emergency stops when teaching Common Key for Door Switch and Selector Switch
With the Selector Switch, it is possible to
switch between normal operation mode
(use of Door Switch is available) and
maintenance mode (use of Enabling
Grip Switch is available).
A22TK
Safety Key
Selector Switch Safety Key Selector Switch
Guard Lock
Safety-door Switch Guard Lock Safety-door Switch
G9SX-GS
Safety Controllers
such as Safety Guard
Switching Unit
A4EGD4GL-SK10-LK@
D4SL-NSK10-LK@
A22TK
Enabling
Grip Switch
D4JL
D4JL
D4GL-SK10-LK@
D4SL-NSK10-LK@
Common Key
*To unify keys, specify the same key type.

A22TK
2
Key: Cannot be removed
I take the key with me when
I enter, so there is no worry
of becoming trapped inside!
Guard Lock
Safety-door Switch
Safety can be ensured, but there is a risk of human error
occurring during operation.
By using a common key, the risk of human error is reduced in operations
from when the door is open/shut until the equipment is started.
From
When only the Door Switch is used, the operator is at risk of being
shut inside the barrier if, for example, he/she forgets to remove the
trapped key and a third party locks the door.
The equipment may also be started up while the operator is inside.
The two locks on the door and equipment use the same key, reducing the likelihood that the user will forget to remove it.
In addition, the key cannot be removed when maintenance is being performed.This prevents the key from being lost and greatly
reduces the risk of an operator becoming trapped inside.
+
Forgetting to
remove the key
Assumed risks
Being
trapped inside Forgetting to remove the key Being trapped inside
Assumed risks
Starting equipment
To
Guard Lock Safety-door Switch only
The safety level is enhanced by switching to maintenance mode.
However, because two different types of keys are required,
the operator is still at risk of being shut inside if he/she forgets to
remove the trapped key.
Guard Lock Safety-door Switch Key Selector Switch (A22K)
+
Guard Lock Safety-door Switch Safety Key Selector Switch (A22TK)
I should close it.I should close it.
I'm trapped
inside!
The equipment
started up!
Operation starts
Common key
Furthermore
Different keys
Lock the door
4
End maintenance
3
Start maintenance
Operation stopped
RUN MAINTENANCE
Key: Can be removed
LOCKUNLOCK
RUN MAINTENANCE
Key: Can be removed
Unlock the door
Operation stopped
Operation double-stopped
Key: Cannot be removed
LOCKUNLOCK
1
1
2
3
4
2
Same Key
Same Key
A22TK
A22TKD4JL
D4JL
D4JL
Safety Key
Selector Switch
A22TK
Enabling Grip Switch Safety Laser Scanner
during maintenance and by using aBy using the to detect
the presence of operators, equipment malfunctions can be prevented when operators are inside, enabling a higher safety level.
or Safety Mat

A22TK
3
Model Number Structure
Model Number Legend (Ordering as a set)
The Operation Unit and Switch are delivered as a set. For information on combinations, refer to Ordering Information
on page 5.
The models numbers of only Operation Units are they same as the set model numbers without (2) Contact
Configuration.
Example: The model number of the Operation Unit from the A22TK-2LL-12-K01 Set is A22TK-2LL-K01.
Ask your OMRON representative about parts without model numbers when ordering.
(1) (2) (3) (4)
A22TK- 2LL -12-K01
(1) Operation Unit
Symbol No. of
notches Key release position
Key position of NC contact closing
2LL
2
2RL
2LR
2RR
(3) Key Availability
Symbol Type
None No key
KWith key
(4) Key Type
01 to 30: 30 types *
(2) Contact Configuration
Symbol Type
01 SPST-NC
11 SPST-NO/SPST-NC
02 DPST-NC
12 DPST-NC + SPST-NO
21 DPST-NO + SPST-NC
03 TPST-NC
* Key can be created up to 30 types. Specify keys in
order starting from 01.
Key drop preventive type
A22TK-@-@-@01-SJ
― ――
(1) (2) (3)
(1) Operation Unit
Symbol No. of
notches Key release position
Key position of NC
contact closing
2LL
2
2RL
2LR
2RR
(3) Key Availability
Symbol Type
None No key
KWith key
(2) Contact Configuration
Symbol Type
01 SPST-NC
11 SPST-NO/SPST-NC
02 DPST-NC
12 DPST-NC+SPST-NO
21 DPST-NO+SPST-NC
03 TPST-NC

A22TK
4
Key drop preventive (on the A22TK-2RL-@)
Contact Configuration
A22TK-2@L
A22TK-2@R
Operation Angle
*1. If the key is stopped at a position between FP and TTP, the contacts will not be in the states indicated above.
Always be careful to turn the key completely to the FP (HP) or TTP position to ensure that the contacts are properly switched and the direct
open circuit operation characteristics are obtained.
*2. Key drop preventive type (A22TK-@-SJ or A22TK-@-SJ only)
Key position SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NO TPST-NC
Key position SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NO TPST-NC
Operating rangeOperating range
NC contact: ON
Key: Hold NC contact: OFF
Key: Removed NC contact: ON
Key: Hold NC contact: OFF Key: Removed
NC contact: OFF
Key: Hold
Key drop preventive typeStandard type
TTP 90° FP
90°
15° 15°
FP
HP
HP
＊1 ＊1
＊2＊2
FP : Free position
TTP
: Total travel position
HP : Key hold position (drop prevention) *2
A22TK-2L@
A22TK-2L@-SJ A22TK-2R@ A22TK-2R@-SJ

A22TK
5
Ordering Information
Switch
List of Models (Completely Assembled)...Shipped as a set which includes the Operation Unit and Switch.
The models numbers of only Operation Units are they same as the set model numbers without (2) Contact Configuration.
Example: The model number of the Operation Unit from the A22TK-2LL-12-K01 Set is A22TK-2LL-K01.
Ask your OMRON representative about parts without model numbers when ordering.
Appearance Key release
position Key position of NC contact closing Contact Configuration Key availability Model
SPST-NC
Yes
A22TK-2LL-01-K01
SPST-NO/SPST-NC A22TK-2LL-11-K01
DPST-NC A22TK-2LL-02-K01
DPST-NC + SPST-NO A22TK-2LL-12-K01
DPST-NO + SPST-NC A22TK-2LL-21-K01
TPST-NC A22TK-2LL-03-K01
SPST-NC A22TK-2RL-01-K01
SPST-NO/SPST-NC A22TK-2RL-11-K01
DPST-NC A22TK-2RL-02-K01
DPST-NC + SPST-NO A22TK-2RL-12-K01
DPST-NO + SPST-NC A22TK-2RL-21-K01
TPST-NC A22TK-2RL-03-K01
SPST-NC A22TK-2LR-01-K01
SPST-NO/SPST-NC A22TK-2LR-11-K01
DPST-NC A22TK-2LR-02-K01
DPST-NC + SPST-NO A22TK-2LR-12-K01
DPST-NO + SPST-NC A22TK-2LR-21-K01
TPST-NC A22TK-2LR-03-K01
SPST-NC A22TK-2RR-01-K01
SPST-NO/SPST-NC A22TK-2RR-11-K01
DPST-NC A22TK-2RR-02-K01
DPST-NC + SPST-NO A22TK-2RR-12-K01
DPST-NO + SPST-NC A22TK-2RR-21-K01
TPST-NC A22TK-2RR-03-K01
SPST-NC
No
A22TK-2LL-01-01
SPST-NO/SPST-NC A22TK-2LL-11-01
DPST-NC A22TK-2LL-02-01
DPST-NC + SPST-NO A22TK-2LL-12-01
DPST-NO + SPST-NC A22TK-2LL-21-01
TPST-NC A22TK-2LL-03-01
SPST-NC A22TK-2RL-01-01
SPST-NO/SPST-NC A22TK-2RL-11-01
DPST-NC A22TK-2RL-02-01
DPST-NC + SPST-NO A22TK-2RL-12-01
DPST-NO + SPST-NC A22TK-2RL-21-01
TPST-NC A22TK-2RL-03-01
SPST-NC A22TK-2LR-01-01
SPST-NO/SPST-NC A22TK-2LR-11-01
DPST-NC A22TK-2LR-02-01
DPST-NC + SPST-NO A22TK-2LR-12-01
DPST-NO + SPST-NC A22TK-2LR-21-01
TPST-NC A22TK-2LR-03-01
SPST-NC A22TK-2RR-01-01
SPST-NO/SPST-NC A22TK-2RR-11-01
DPST-NC A22TK-2RR-02-01
DPST-NC + SPST-NO A22TK-2RR-12-01
DPST-NO + SPST-NC A22TK-2RR-21-01
TPST-NC A22TK-2RR-03-01

A22TK
6
Accessories
Note: For information on two-hole and three-hole control boxes, contact your OMRON representative.
The Switch Block, Mounting Latch, Connector, and Lock Plate of A22E can be used.
Appearance Key release
position Key position of NC contact closing Contact Configuration Key availability Model
SPST-NC
Yes
A22TK-2LL-01-K01-SJ
SPST-NO/SPST-NC A22TK-2LL-11-K01-SJ
DPST-NC A22TK-2LL-02-K01-SJ
DPST-NC + SPST-NO A22TK-2LL-12-K01-SJ
DPST-NO + SPST-NC A22TK-2LL-21-K01-SJ
TPST-NC A22TK-2LL-03-K01-SJ
SPST-NC A22TK-2RL-01-K01-SJ
SPST-NO/SPST-NC A22TK-2RL-11-K01-SJ
DPST-NC A22TK-2RL-02-K01-SJ
DPST-NC + SPST-NO A22TK-2RL-12-K01-SJ
DPST-NO + SPST-NC A22TK-2RL-21-K01-SJ
TPST-NC A22TK-2RL-03-K01-SJ
SPST-NC A22TK-2LR-01-K01-SJ
SPST-NO/SPST-NC A22TK-2LR-11-K01-SJ
DPST-NC A22TK-2LR-02-K01-SJ
DPST-NC + SPST-NO A22TK-2LR-12-K01-SJ
DPST-NO + SPST-NC A22TK-2LR-21-K01-SJ
TPST-NC A22TK-2LR-03-K01-SJ
SPST-NC A22TK-2RR-01-K01-SJ
SPST-NO/SPST-NC A22TK-2RR-11-K01-SJ
DPST-NC A22TK-2RR-02-K01-SJ
DPST-NC + SPST-NO A22TK-2RR-12-K01-SJ
DPST-NO + SPST-NC A22TK-2RR-21-K01-SJ
TPST-NC A22TK-2RR-03-K01-SJ
SPST-NC
No
A22TK-2LL-01-01-SJ
SPST-NO/SPST-NC A22TK-2LL-11-01-SJ
DPST-NC A22TK-2LL-02-01-SJ
DPST-NC + SPST-NO A22TK-2LL-12-01-SJ
DPST-NO + SPST-NC A22TK-2LL-21-01-SJ
TPST-NC A22TK-2LL-03-01-SJ
SPST-NC A22TK-2RL-01-01-SJ
SPST-NO/SPST-NC A22TK-2RL-11-01-SJ
DPST-NC A22TK-2RL-02-01-SJ
DPST-NC + SPST-NO A22TK-2RL-12-01-SJ
DPST-NO + SPST-NC A22TK-2RL-21-01-SJ
TPST-NC A22TK-2RL-03-01-SJ
SPST-NC A22TK-2LR-01-01-SJ
SPST-NO/SPST-NC A22TK-2LR-11-01-SJ
DPST-NC A22TK-2LR-02-01-SJ
DPST-NC + SPST-NO A22TK-2LR-12-01-SJ
DPST-NO + SPST-NC A22TK-2LR-21-01-SJ
TPST-NC A22TK-2LR-03-01-SJ
SPST-NC A22TK-2RR-01-01-SJ
SPST-NO/SPST-NC A22TK-2RR-11-01-SJ
DPST-NC A22TK-2RR-02-01-SJ
DPST-NC + SPST-NO A22TK-2RR-12-01-SJ
DPST-NO + SPST-NC A22TK-2RR-21-01-SJ
TPST-NC A22TK-2RR-03-01-SJ
Name Appearance Classification Model Remarks
Control Box One hole, yellow box
(for emergency stop) A22Z-B101Y Material: Polycarbonate resin

A22TK
7
Specifications
Approved Standard Ratings
• UL, cUL (File No. E41515): 6 A at 220 VAC, 10 A at 110 VAC
• TÜV (EN60947-5-1) (Low Voltage Directive): 3 A at 220 VAC
• CCC (GB14048.5): 3 A at 240 VAC, 1.5 A at 24 VDC
Certified Standards
Note: Only models with NC contacts have a direct opening mechanism.
*1. UL-certification for CSA C22.2 No. 14 has been obtained. (Certification has been obtained for the Switch Unit only)
Ratings
Contacts (Standard load)
Note: 1. Rated current values are determined according to the testing conditions. The above ratings were obtained by conducting tests under the
following conditions.
(1) Ambient temperature: 20±2C°
(2) Ambient humidity: 65±5% RH
(3)Operating frequency: 20 operations/minute
2. Minimum applicable load: 10 mA at 5 VDC
Characteristics
*1. Malfunction within 1 ms.
*2. With no icing or condensation.
*3. The degree of protection from the front of the panel.
Note: 1. Do not allow the load current to exceed the rated value.
2. The contact ON/OFF timing is not synchronized. Confirm performance before application.
3. Once the contacts have been used to switch a load, however, they cannot be used to switch smaller loads. The contact surfaces will
become rough once they have been used and contact reliability for smaller loads may be reduced.
Certification body Standards File No.
UL *1 UL508, C22.2 No.14 E41515
TÜV SÜD EN60947-5-1
(certified direct opening mechanism) Consult your OMRON representative for details.
CQC(CCC) GB14048.5 2003010303070635
KOSHA EN60947-5-1 2009-156
Rated carry current
(A)
Rated voltage
(V)
Rated current (A)
AC15
(inductive load) AC12 (resistive load) DC13 (inductive load) DC12 (resistive load)
10
24 VAC 10 10
--
110 5 10
220 3 6
380 2 3
440 1 2
24 VDC
--
1.5 10
110 0.5
2
220 0.2
0.6
380 0.1
0.2
Item Model A22TK
Allowable operating
frequency Mechanical 30 operations/minute max.
Electrical 30 operations/minute max.
Insulation resistance 100 MΩmin. (at 500 VDC)
Dielectric strength
Between terminals
of same polarity 2,500 VAC, 50/60 Hz for 1 min.
Between each
terminal and ground 2,500 VAC, 50/60 Hz for 1 min.
Vibration resistance *1 10 to 55 Hz, 1.5-mm double amplitude (within 1 ms)
Shock resistance Destruction 1000 m/s2
Malfunction *1 250 m/s2max.
Durability Mechanical 100,000 operations min.
Electrical 100,000 operations min.
Ambient operating temperature *2 -20 to +70°C
Ambient operating humidity 35% to 85%RH
Ambient storage temperature -40 to +70°C
Degree of protection IP65 *3
Electric shock protection class Class II
PTI (tracking characteristic) 175
Degree of contamination 3 (EN60947-5-1)

A22TK
8
Structure and Nomenclature
Dimensions (Unit: mm)
Terminal Arrangement (Bottom View)
Terminal Connection
2 Contacts 3 Contacts
Type Terminal connection (Bottom View)
SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC
Non-lighted
Key * Two keys are provided.
Contact Ratings
10 A at 110 VAC (resistive load)
10 A at 24 VDC (resistive load)
Contact Configuration
SPST-NC, SPST-NO/SPST-NC, DPST-NC, DPST-NC + SPST-NO, DPST-NO + SPST-NC, and TPST-NC
Switch
Lock Plate (attached with the Switch)
(Refer to "Mounting the Lock Plate" on page 13 for use.)
(The above figures are examples of the model with key.)
Operation Unit
Key
5.9
Lock Plate (included)
(A22Z-3380)
1
10.9
0.5
34
54.7
16.5
32.6
32.2
30 dia.
29.5 dia.
27 dia.
Key
5.9
Lock Plate (included)
(A22Z-3380)
1
10.9
0.5
30 dia.
29.5 dia.
27 dia.
34
54.7
16.5
32.6
32.2
A22TK-2LL A22TK-2RL
OPEN
LOC
20.7
16.7
Switch blocks
M3.5 screws
OPEN
LOC
10
16.7
Switch blocks
3
4
1
2
1
2
1
2
3
4
1
2
1
2
3
4
3
4
1
2
1
2
1
2
1
2

A22TK
9
Application Examples
●Application Overview
•Switching between normal operation mode and maintenance mode is performed manually.
•In normal operation mode, the power supply to the motor M2 is turned OFF when the guard is opened.
•In maintenance mode, the power supply to the motor M2 is turned OFF when the enabling switch is released or strongly gripped.
•
In normal operation mode and maintenance mode, the power supply to the motor M1 and M2 is turned OFF when the emergency stop switch is pressed.
●Evaluation example
Note: The above PL is only the evaluation result of the example concerning solely the mode selection. The PL must be evaluated in an actual
application by the customer after confirming the usage conditions.
●Circuit Diagram
PL/safety category Model Stop category Reset
PLe/4 equivalent
Safety Key Selector Switch A22TK-2@@-11 (SPST-NO/SPST-NC type)
Guard lock Safety-door Switch
D4NL-@A@A-@, -@A@B-@, -@A@C-@ (Mechanical Lock Type)
Enabling Grip Switch A4EG
Safety Guard Switching Unit G9SX-GS226-T15
Flexible Safety Unit G9SX-BC202 (24 VDC)
−−
KM4
KM3
+24V
M2
KM4
KM3
KM4KM3
PLC etc.
Open Open OpenOpen
Feedback loop
S14
A2
S24 S44 S54
L1 X3X2X1 X4
T11 A1 T12 T21
Y1 Y3
T22 T61 T62
M1 M2 T71
Y2 Y4
T72 T31 T32 T33 T41 T42
OFF
AND
Auto
Manual
G9SX-GS226-T15 (Unit 2)
Control circuit
(2)
(1)
(4)
(3)
S3
S7
+24V
GND
S14 A2 S24 L1 L2 X1 X2
T11 A1 T12 T21 T22 T31 T32 T33 Y1
KM2
KM1
S2
12
11 21
22
+24V
KM1 KM2
M1
KM2
KM1
PLC etc.
S1
+24V
Open
Feedback loop
Emergency Stop
Switch
Guard lock
Safety-door Switch
G9SX-BC202 (Unit 1)
Control circuit
GND
Indicator
(Diagnostic check enabled) Indicator (Diagnostic check enabled)
Enabling
Switch
S4
OPEN
S5
KM3
KM4
41
42
11
12
Stop signal
Guard
Lock release signal
S6
UA UB
+24V
Selector Switch
A22TK
S8
< G9SX-BC202(Unit 1) >
Reset switch S2
KM1, KM2
NC contact
KM1, KM2
NO contact
KM3, KM4
NC contact
KM3, KM4
NO contact
Unit 1
Logical AND output L1
Unit 2
Logical AND input T41
Lock release
switch
Emergency
Stop Switch S1
Guard lock
safety-door switch S4
Mode selection
input M2
Mode selection
input M1
Reset switch S7
Enabling Switch S3
S5
Unit 1 S14, S24
(10)
(8)(3)
(6)(4)
(1)
Unit 2 S14, S24
(2)
(7)(5) (9)
< G9SX-GS226-T15(Unit 2) >
Timing Chart
S1: Emergency Stop Switch
S2, S7: Reset switches
S3: Enabling Switch
S4: Guard lock Safety-door Switch
S5: Lock release switch
S6: Safety limit switch
S8: A22TK Safety Key Selector
Switch
KM1 to KM4: Contactors
M1 to M2: 3-phase motor
(1) The G9SX-GS starts in operation mode.
(2) The mode switches to maintenance
mode.
(3) The operator opens the guard and
performs maintenance work.
(4) The Enabling Switch is gripped to the
middle position.
(5) The G9SX-GS starts in maintenance
mode.
(6) The G9SX-GS will stop when the
Enabling Switch is released or gripped.
(7) The G9SX-GS will start again after the
guard is closed and the mode is
switched to operation mode.
(8) The G9SX-GS will stop and the guard
can be opened when the stop signal is
input while in operation mode.
(9) The guard is closed and the G9SX-GS
starts again.
(10)All the units will stop if the emergency
stop is pressed.

A22TK
10
●Application Overview
(1)In normal operation mode, the power supply to the motor M is turned ON when the reset switch S7 is pressed while the rotator is stopped and
the guard is locked after closed.
(2)The PLC sends high speed rotation command to the motor controller.
(3)The stop signal is applied with the S8.
(4)The PLC sends deceleration command to the motor controller.
(5)The guard can be unlocked when the rotator slows down to the safe speed.
(6)The power supply to the motor M is turned OFF when the guard is unlocked with the S5.
(7)The mode switches to maintenance mode with the mode selection switch.
(8)The PLC sends low speed rotation command to the motor controller.
(9)The power supply to the motor M is automatically turned ON again by gripping the enabling switch to the middle position.
(10)The operator opens the guard and performs maintenance work.
●Evaluation example
Note: The above PL is only the evaluation result of the example concerning solely the mode selection. The PL must be evaluated in an actual
application by the customer after confirming the usage conditions.
●Circuit Diagram
PL/safety category Model Stop category Reset
PLd/3 equivalent
Safety Key Selector Switch A22TK-2@@-11 (SPST-NO/SPST-NC type)
Guard lock Safety-door Switch
D4NL-@A@A-@, -@A@B-@, -@A@C-@ (Mechanical Lock Type)
Enabling Grip Switch A4EG
Low-speed Monitoring Unit G9SX-LM224-F10-R@
Flexible Safety Unit G9SX-BC202 (24 VDC)
−−
S1
Emergency Stop
Switch
Feedback loop
KM1
KM2
T42T41T33T32T31 Y2 T71 T72T62T61
M2M1
Y1
T22T21T12T11
A1
D22D21D12D11
X4X3X2X1L1
ES2ES1S24S14 A2
M
KM2
KM1
Motor controller
Lock release
switch
S5 E2E1
41
42
12
11
11
12 S3
open
Guard
S8
Stop signal
+24V
S6
OpenOpen
+24V
S7
Enabling
Switch
AND
OFF
Rotator (interlocked with M)
KM2KM1
Indicator
+24V
GND
G9SX-LM224-F10
Blue
BlackBrownBlackBrown
Control circuit
S4
Guard lock
Safety-door Switch
21
22
11
12
Open
Y1
T33
T32
T31T22T21T12T11
A1
+24V
G9SX-BC202
Control circuit
PLC etc.
X2X1
L2L1
S24S14
A2
S2
Selector Switch
A22TK
High speed rotation
Guard can be opened.
Guard closed --> opened
Emergency Stop Switch S1
Reset switch S2
Logical AND output L1
Safety limit switch S3
Guard lock
Safety-door Switch S4
KM1, KM2 NC contact
KM1, KM2 NO contact
(Operation instruction to the motor)
Motor rotation
Lock release signal
(Safe speed detection output) ES1
Lock release switch S5
Mode selection input M1
Mode selection input M2
Enabling Switch S7
Low speed rotation
Timing Chart
S1: Emergency Stop Switch
S2: Reset switch
S3: Safety limit switch
S4: Guard lock Safety-door Switch
S5: Lock release switch
S6: A22TK Safety Key Selector Switch
S7: Enabling switch
S8: Stop signal
KM1, KM2: Contactor
M: 3-phase motor