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 key has the same shape as the following keys.
- The key of the A22LK Guard Lock Safety Key Selector Switch
- The trapped key of the D4JL Guard Lock Safety-door Switch
-The lockout key of the D4JL-NSK10-LK and D4GL-SK10-LK Slide Key
Units
Common to the switch part of Emergency Stop Switch A22E.
(Non-lighted model only)
Features
Because the A22TK Safety Key Selector Switch uses the same key as the Guard Lock Safety-door Switch, the operator is prevented from forgetting
to remove the key. The result is a safer working environment when performing maintenance.
Be sure to read the "Safety Precautions" on page 12.
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 a By 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 - K 01
(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
6
A22TK
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
A22Z-B101Y
Material: Polycarbonate resin
The A22Z-B101Y do not support 2NO, 2NC,
or 1NO + 1NC One-piece Switch Blocks. The
A22Z-B201Y do not support A22-series
Alternate-action Switches. They also do not
support 2NO, 2NC, or 1NO + 1NC One-piece
Switch Blocks.
A22Z-B201Y
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 (GB/T 14048.5): 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.
Structure and Nomenclature
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) GB/T 14048.5
KOSHA EN60947-5-1
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 MΩ min. (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/s2 max.
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)
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
A22TK
8
Dimensions (Unit: mm)
Switch
Accessories
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
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.
A22TK-2LL A22TK-2RL
4-4 × 38 tapping screw
22.1±0.3
0.1 dia.
10 (10 × 36) 0.6 depression
75
20.5±0.1
2.8±0.1
68
36
Two, 21 dia.
Side lead draw-out hole
20
41
69.5
Control Box
A22Z-B101Y (1 hole)
41
16±1 dia.
(Side lead draw-out hole) 32
39
Two, mounting holes
56
Cable Draw-out Hole (Top View)
Mounting Hole
6.3
2-R3
4.3
Four, M4 Screws
22.1±0.3
0.1 dia.
10 (10 × 36) 0.6 depression
68
20.5±0.1
2.8±0.1
68
36
Two, 21 dia.
Side lead draw-out hole
16
30.5
60
54
Two, 19±1 dia.
(Side lead draw-out hole) 40
Mounting Hole
6.3
2-R3
4.3
Cable Draw-out Hole (Top View)
Two, mounting holes
Control Box
A22Z-B201Y (1 hole)
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
Installation
Mounting to the Panel
Installing/Removing the Switch Blocks
(1) Preparing the Panel (3) Mounting the Switch on the Operation Unit
(2) Mounting the Operation Unit on the Panel (4) Removing the Switch
(1) Installing the Switch Blocks (2) Removing the Switch Blocks Wiring
The panel dimensions are shown below.
Recommended panel thickness: 1 to 5 mm.
A Lock Ring is provided as a standard feature.
When painting or coating the panel, make sure that the specified panel
dimensions apply to the panel after painting or coating.
22.3 dia.
3.2 2-R0.8MAX.
+0.4
0
+0.2
0
+0.4
0
24.1
Insert the Operation Unit into the Switch Unit, aligning the arrow mark
inscribed on the Case with the lever on the Switch Blocks, then move the
lever in the direction indicated by the arrow in the following figure.
Switch Unit
Lever
Arrow mark
Operation Unit
Insert the Operation Unit from the front surface of the panel, insert the Lock
Ring and the mounting ring from the terminal side, then tighten the ring.
Before tightening, check that the rubber washer is present between the
Operation Unit and the panel.
Tighten the mounting ring at a torque of 0.98 to 1.96 N·m.
When using a Lock Ring, insert the projecting part into the lock slot, and
then tighten the mounting ring.
22 dia.
22 dia.
+0.4
0
24.1+0.4
0
Key Operation Unit Arrow mark Projecting part Mounting ring
Rubber washer Panel Lock Ring
Move the lever in the direction indicated by the arrow in the following figure,
then pull the Operation Unit or the Switch Blocks. Since the lever has a hole
with an inside diameter of 6.5 mm, the lever can be moved in the specified
direction by inserting a screwdriver into the hole and then moving the screw-
driver.
OPEN
LOCK
Screwdriver
Hook the small protrusion on the Mounting Latch
into the groove on the other side of the lever,
then push up the Switch Block in the direction
indicated by the arrow in the figure below.
Switch block
Mounting Latch
Lever
Protrusion
Insert a screwdriver between the Mounting Latch
and the Switch Block, then push down the
screwdriver in the direction indicated by the
arrow in the following figure.
Use either of the following screwdrivers.
Flat-head screwdriver 3 to 6 mm
3 to 6 mm dia.
Phillips screwdriver
Screwdriver
Loosen the terminal screw from the Switch
Unit until it completely comes off the groove,
insert a screwdriver as shown in the follow-
ing figure, then push up the washer in the
direction indicated by the arrow to tempo-
rarily secure it. Now, a round crimp terminal
can be connected. After inserting the termi-
nal, tighten the screws to complete wiring.
Screwdriver
Washer
Screw
A22TK
10
Application Examples
Note: The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming
the usage conditions.
Application Overview
1. When the emergency stop switch S1 is pressed.
The power supply to the motor M1 and M2 is turned OFF immediately when the emergency stop switch S1 is pressed.
The power supply to the motor M1 is kept OFF until the reset switch S2 is pressed while the emergency stop switch S1 is released.
When normal operating mode (M1 = ON, M2 = OFF) is selected on the selector switch S8, the power supply to the motor M2 is kept OFF until the guard is closed
and the reset switch S2 and S7 are pressed while the emergency stop switch S1 is released.
When maintenance mode (M1 = OFF, M2 = ON) is selected on the selector switch S8, the power supply to the motor M2 is kept OFF until the enabling switch is
gripped to the middle position and the reset switch S2 and S7 are pressed while the emergency stop switch S1 is released.
2. Normal operating mode (the emergency stop switch S1 is released)
Normal operating mode (M1 = ON, M2 = OFF) is selected on the selector switch S8. The enabling switch S3 is disabled.
Power is supplied to motor M2 when the guard is closed.
After opening of the guard is permitted by turning ON of the lock release enable signal, the lock release switch S5 is pressed, then the guard lock is released and the
guard is opened. Opening of the guard is detected by S4 and S6, and the power supply to the motor M2 is turned OFF immediately (The power supply to the motor
M1 is kept ON).
The power supply to the motor M2 is kept OFF until the guard is closed and the reset switch S7 is pressed.
3. Maintenance mode (the emergency stop switch S1 is released)
Maintenance mode (M1 = OFF, M2 = ON) is selected on the selector switch S8 after the motor M2 is stopped. S4 and S6 for detecting the opening and closing of
the guard are disabled.
After opening of the guard is permitted by turning ON of the lock release enable signal, the lock release switch S5 is pressed, then the guard lock is released and the
guard is opened.
The power supply to the motor M2 is turned ON while the enabling switch is gripped to the middle position.
If the enabling switch is released or gripped past the middle position, the power supply to the motor M2 is turned OFF immediately.
The power supply to the motor M2 is kept OFF until the enabling switch is gripped again to the middle position and the reset switch S7 is pressed.
Highest achievable PL/
safety category Model Stop category Reset
PLe/4 equivalent
A22TK-@-11-@@ Safety Key Selector Switch
D4NL / D4SL-N / D4JL Guard Lock Safety-door Switch (Mechanical Lock Type)
D4N / D4F Safety Limit Switch
A4EG Enabling Grip Switch
G9SX-GS226-T15 Safety Guard Switching Unit
G9SX-BC202 Flexible Safety Unit
0 Manual
KM4
KM3
+24V
M2
KM4
KM3
KM4KM3
PLC etc.
Open OpenOpenOpen
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
S3
S7
+24V
S14
A2
S24
L1 L2
X1 X2
T11
A1
T12 T21 T22 T31 T32 T33
Y1
KM2
KM1
S2
+24V
KM1 KM2
M1
KM2
KM1
PLC etc.
+24V
Open
Feedback loop
Guard lock
Safety-door Switch
Condition monitoring of
Safety-door Switch
G9SX-BC202 (Unit 1)
Control circuit
Indicator
(Diagnostic check enabled)
Indicator
(Diagnostic check enabled)
Enabling
Switch
S4
OPEN
S5
Lock release enable signal
S6
UA UB
+24V
Selector Switch
A22TK
S8
Guard
S1
Emergency Stop
Switch
(2)
(1)
(4)
(3)
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: Magnetic contactors
M1 to M2: Motor
A22TK
11
Reset switch S2
KM1, KM2
NO contact
Unit 1
Logical AND output L1
Emergency
Stop Switch S1
Unit 1 S14, S24
<
G9SX-BC202(Unit 1)
>
<
G9SX-GS226-T15(Unit 2)
>
(10)
(8)(3)
(6)(4)
(1) (7)(5) (9)
(2)
KM3, KM4
NO contact
Unit 2
Logical AND input T41
Lock release
switch
Guard Lock
Safety-door Switch
S4
Mode selection input M2
(Selector Switch S8)
Mode selection input M1
(Selector Switch S8)
Reset switch S7
Enabling Switch S3
S5
Unit 2 S14, S24
Timing Chart
(1) Start the unit 2 in normal operating mode.
(2) Switch to maintenance mode by operating the selector switch.
(3) After checking that the motor has stopped, press the lock release switch to release the guard lock, and open the door to perform maintenance.
(4) Grip the enabling switch to the middle position.
(5) Press the reset switch to start the unit 2 in maintenance mode.
(6) Release (or grip) the enabling switch to stop the unit 2.
(7) After closing the guard and switching to operating mode by operating the selector switch, press the reset switch to restart the unit 2.
(8) After checking that the motor has stopped after a stop signal is input during operating mode, press the lock release switch and open the guard to
stop the unit 2.
(9) Close the guard and press the reset switch to restart the unit 2.
(10)Operate the emergency stop switch -> All the units stop.
Note: The lock release enable
signal must be configured so
that it should turn ON after
dangerous movement is
stopped and safety is ensured
for the door to open.
A22TK
12
Safety Precautions
Be sure to read the precautions for All Pushbutton Switches in the website at:http://www.ia.omron.com/.
Indication and Meaning for Safe Use
Installation Environment
Do not use the switch in locations where explosive or flammable
gasses may be present.
Do not use the switch submerged in oil or water or in locations
continuously subject to splashes of oil or water. Doing so may
result in oil or water entering the switch.
Wiring
Connect a fuse in series with the A22TK to protect it from
shortcircuit damage. The value of the breaking current of the fuse
must be calculated by multiplying the rated current by 150% to
200%.
When using the A22TK for an EN rating, use a 10-A fuse of type gI
or gG that complies with IEC 60269.
Always make sure that the power is turned OFF before wiring the
Switch.
Also, do not touch the terminals or other current-carrying ports
while power is being supplied.
Check the contact specifications before mounting the Switch
Block. Use an NC contact for a safety circuit. It may not operate
properly. Check the Switch Block for safe operation before use.
Check the operating specification before mounting the Operation
Unit. It may not operate properly. Check the Operation Unit for safe
operation before use.
Installation
Do not drop the Switch. Doing so may prevent the Switch from
functioning to its full capability.
Make sure the Switch is mounted securely to prevent it from falling
off. Otherwise injury may result.
Mount the Operation Key so that it will not come into contact with
persons in the area when the door is opened and closed. Injury
may result.
Do not use a Switch as a stopper. Otherwise, the switch may be
damaged and may not operate properly.
Be sure to use the supplied Lock Ring. Otherwise, the switch may
rotate and may not operate properly.
Others
Do not attempt to disassemble or modify the Switch. Doing so may
cause the Switch to malfunction.
The durability of the Switch is greatly influenced by the switching
conditions. Always test the switch under actual working conditions
before application and use it in a switching circuit for which there
are no problems with performance.
The user must not maintain or repair equipment incorporating the
Switch. Contact the manufacturer of the equipment for any
maintenance or repairs required.
Operating Environment
This Switch is designed for use indoors.
Using the Switch outdoors may damage it.
Do not use the Switch where corrosive gases (e.g., H2S, SO2, NH3,
HNO3, or CI2) are present or in locations subject to high
temperature and humidity. Doing so may result in damage to the
Switch as a result of contact failure or corrosion.
Do not use the Switch in any of the following locations.
Locations subject to extreme temperature changes
Locations subject to high humidity or condensation
Locations subject to excessive vibration
Locations where metal dust, processing waste, oil, or chemicals
may enter through the protective door
Locations subject to detergents, thinners, or other solvents
Storage
Do not store the Switch where corrosive gases (e.g., H2S, SO2,
NH3, HNO3, or Cl2) or dust is present, or in locations subject to high
temperature or high humidity.
Mounting
Do not tighten the mounting ring more than necessary using tools
such as pointed-nose pliers. Doing so will damage the mounting
ring. The tightening torque is 0.98 to 1.96 N·m.
Recommended panel thickness: 1 to 5 mm.
Indicates an imminently hazardous
situation which, if not avoided, is likely to
result in serious injury or may result in
death. Additionally there may be severe
property damage.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury or in property damage.
Precautions
for Safe Use
Supplementary comments on what to do
or avoid doing, to use the product safely.
Precautions
for Correct
Use
Supplementary comments on what to do
or avoid doing, to prevent failure to
operate, or undesirable effect on product
performance.
DANGER
Always confirm that safety functions are operational
before stating operation. Wiring mistakes, setting
mistakes, switch failure or other factors may prevent
safety functions from operating. This may result in the
machine continuing to operate, possibly resulting in
human accidents.
CAUTION
If the Operation Unit is separated from the Socket Unit,
the equipment will not stop, creating a hazardous
condition.
Secure the lever on the Socket Unit by using the A22Z-
3380 Lock Plate so that the Operation Unit cannot be
easily separated from the Socket Unit.
(Refer to “Mounting the Lock Plate” at the right.)
[Used in combination with a Slide Key]
The machine may operate, possibly causing injury.
Do not disable safety function by using a spare door
switch operation key or spare key with the door
open.
[Used outside/inside hazardous area]
The machine may operate, possibly causing injury.
Do not disable safety function by using a spare key
outside or inside the hazardous area.
Precautions for Safe Use
DANGER
CAUTION
Precautions for Correct Use
A22TK
13
Mounting the Lock Plate
1. Confirm that the lever on the Mounting Latch is on the side where
the Operation Unit is secured and then insert the protrusion on the
Lock Plate into the hole in the lever on the Mounting Latch.
2. Press the hole on the Lock Plate onto the protrusion on the Mount-
ing Latch until it clicks into place.
After mounting the Lock Plate, check that the lever does not move.
Operating the Key
When rotating the key to the total travel position or free position,
the operating force must be 1.47 N·m max.
Wiring
Terminal screws must be Phillips or slotted M3.5 screws with a
square washer.
The tightening torque is 1.08 to 1.27 N·m.
Single wires, stranded wires, and crimp terminals can be
connected to the Switch
Applicable Wiring Materials:
Twisted strands: 2 mm2 max.
Solid wire: 1.6 mm dia. max.
After wiring the Switch, maintain an appropriate clearance and
creepage distance.
Do not pull the lead wires with excessive force. Doing so may
disconnect them.
The cable cannot be bended repeatedly.
When bending the cable, provide a bending radius of 45 mm min.
so as not to damage the cable insulation or sheath. Excessive
bending may cause fire or leakage current.
Operating Environment
The IP65 model is designed with a protective structure so that it will
not sustain damage if it is subjected to water from any direction to
the front of the panel.
The Switch is intended for indoor use only. Using the Switch
outdoor may cause it to fail.
Using the Microload
Contact failure may occur if a Switch designed for a standard load is
used to switch a microload. Use Switches within the application
ranges shown in the following graph. Even within the application
range, insert a contact protection circuit, if necessary, to prevent the
reduction of life expectancy due to extreme wear on the contacts
caused by loads where inrush current occurs when the contact is
opened and closed.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability level
of 60% (λ 60) (conforming to JIS C5003).
The equation, λ 60 = 0.5 x 10-6/time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of 60%.
Others
If the panel is to be coated, make sure that the panel meets the
specified dimensions after coating.
Due to the structure of the Switch, severe shock or vibration may
cause malfunctions or damage to the Switch.
Also, most Switches are made from resin and will be damaged if
they come into contact with sharp objects. Particularly scratches
on the Operation Unit may create visual and operational
obtrusions.
Handle the Switches with care, and do not throw or drop them.
Perform maintenance inspections periodically.
Do not use the key switch to stop/start the machine.
Mode switching by key must be performed by the operator
specified in the operating manual.
Apply load current not to exceed the rated value.
The contact ON/OFF timing is not synchronized. Confirm
performance before application.
LOCK
OPEN
Lever Lock Plate
Mounting Latch
2.
1.
Operation Unit
8 mm max.
16.0 mm max. 20.2 mm max.
8 mm dia. max. 8 mm max.
16.0 mm max. 20.2 mm max.
8 mm dia. max.
Naked Crimp Terminals Crimp Terminals with
Insulating Sheaths
Microload area Area of use
Standard
load area
Invalid area
0.1 1 10 100 1,000
10mA
1mA
5
12
24
30
0.16mA
Voltage (V)
1.6mA 100mA
Current (mA)
0
Do not place or drop
heavy objects
on the Switch.
Do not operate the Switch
with hard or sharp objects.
Screwdriver
Hammer
Do not allow the Switch
to drop and hit the floor.
MEMO
14
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have
any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing
by Omron). Omron disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE
PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL
SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products
or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election,
to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the
non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price
of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other
claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored,
installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by
Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or
unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system
assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in
writing, are not to be construed as an amendment or addition to the above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is
not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system,
or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with
respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it
to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice
to change part numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be
assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to
confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
Authorized Distributor:
In the interest of product improvement,
specifications are subject to change without notice.
Cat. No. A189-E1-02 0917 (0409)
© OMRON Corporation 2009-2017 All Rights Reserved.
OMRON Corporation Industrial Automation Company
OMRON ELECTRONICS LLC
2895 Greenspoint Parkway, Suite 200
Hoffman Estates, IL 60169 U.S.A.
Tel: (1) 847-843-7900/Fax: (1) 847-843-7787
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69, 2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
Contact: www.ia.omron.com
Kyoto, JAPAN
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: (65) 6835-3011/Fax: (65) 6835-2711
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200
CSM_9_3_1018