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) For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Be sure to read the "Safety Precautions" on page 12. 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. Common Key for Door Switch and Selector Switch Guard Lock Safety-door Switch Safety Key Selector Switch Broad range of applications include use with door locks, mode switching, and emergency stops when teaching Guard Lock Safety-door Switch D4GL-SK10-LK@ D4SL-NSK10-LK@ D4GL-SK10-LK@ D4SL-NSK10-LK@ A22TK D4JL Safety Key Selector Switch Enabling Grip Switch A22TK A4EG 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). Safety Controllers such as Safety Guard Switching Unit G9SX-GS D4JL Common Key * To unify keys, specify the same key type. 1 A22TK Safety can be ensured, but there is a risk of human error occurring during operation. Fr o m Guard Lock Safety-door Switch only Guard Lock Safety-door Switch 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. + Key Selector Switch (A22K) 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. Different keys I should close it. I should close it. I'm trapped inside! The equipment started up! Assumed risks Forgetting to remove the key Assumed risks Being trapped inside Forgetting to remove the key Starting equipment Being trapped inside 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. To Guard Lock Safety-door Switch + Safety Key Selector Switch (A22TK) 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. Same Key A22TK D4JL Common key 1 Unlock the door UNLOCK 2 LOCK Operation stopped MAINTENANCE RUN Start maintenance Operation double-stopped Key: Cannot be removed Key: Can be removed Guard Lock Safety-door Switch Safety Key Selector Switch 2 D4JL A22TK 3 1 4 I take the key with me when I enter, so there is no worry of becoming trapped inside! D4JL 4 Lock the door UNLOCK A22TK 3 LOCK Operation starts End maintenance MAINTENANCE Operation stopped Key: Can be removed Key: Cannot be removed Furthermore 2 Same Key By using the Enabling Grip Switch during maintenance and by using a Safety Laser Scanner or Safety Mat to detect the presence of operators, equipment malfunctions can be prevented when operators are inside, enabling a higher safety level. RUN A22TK 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 (3) Key Availability Key release position Symbol Key position of NC contact closing 2LL 2RL (4) Key Type 01 to 30: 30 types * Type None No key K With key (2) Contact Configuration 2 Symbol 2LR 2RR 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) (2) Contact Configuration (1) Operation Unit Symbol No. of notches 2LL 2RL 2 2LR Key release position Key position of NC contact closing (3) Key Availability Type Symbol Type 01 SPST-NC None No key 11 SPST-NO/SPST-NC K With key 02 DPST-NC 12 DPST-NC+SPST-NO 21 DPST-NO+SPST-NC 03 TPST-NC Symbol 2RR 3 A22TK Key drop preventive (on the A22TK-2RL-@) Standard type NC contact: ON Key: Hold Key drop preventive type NC contact: ON Key: Hold NC contact: OFF Key: Removed Operating range NC contact: OFF Key: Removed Operating range NC contact: OFF Key: Hold Contact Configuration A22TK-2@L Key position SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NO TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NO TPST-NC A22TK-2@R Key position Operation Angle 1 FP 15 90 1 TTP 90 HP 2 A22TK-2L@ A22TK-2L@-SJ FP 15 HP 2 A22TK-2R@ A22TK-2R@-SJ FP : Free position TTP : Total travel position HP : Key hold position (drop prevention) *2 *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) 4 A22TK 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 SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC Key availability Yes No Model A22TK-2LL-01-K01 A22TK-2LL-11-K01 A22TK-2LL-02-K01 A22TK-2LL-12-K01 A22TK-2LL-21-K01 A22TK-2LL-03-K01 A22TK-2RL-01-K01 A22TK-2RL-11-K01 A22TK-2RL-02-K01 A22TK-2RL-12-K01 A22TK-2RL-21-K01 A22TK-2RL-03-K01 A22TK-2LR-01-K01 A22TK-2LR-11-K01 A22TK-2LR-02-K01 A22TK-2LR-12-K01 A22TK-2LR-21-K01 A22TK-2LR-03-K01 A22TK-2RR-01-K01 A22TK-2RR-11-K01 A22TK-2RR-02-K01 A22TK-2RR-12-K01 A22TK-2RR-21-K01 A22TK-2RR-03-K01 A22TK-2LL-01-01 A22TK-2LL-11-01 A22TK-2LL-02-01 A22TK-2LL-12-01 A22TK-2LL-21-01 A22TK-2LL-03-01 A22TK-2RL-01-01 A22TK-2RL-11-01 A22TK-2RL-02-01 A22TK-2RL-12-01 A22TK-2RL-21-01 A22TK-2RL-03-01 A22TK-2LR-01-01 A22TK-2LR-11-01 A22TK-2LR-02-01 A22TK-2LR-12-01 A22TK-2LR-21-01 A22TK-2LR-03-01 A22TK-2RR-01-01 A22TK-2RR-11-01 A22TK-2RR-02-01 A22TK-2RR-12-01 A22TK-2RR-21-01 A22TK-2RR-03-01 5 A22TK Appearance Key release position Key position of NC contact closing Contact Configuration SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC Key availability Yes No Model A22TK-2LL-01-K01-SJ A22TK-2LL-11-K01-SJ A22TK-2LL-02-K01-SJ A22TK-2LL-12-K01-SJ A22TK-2LL-21-K01-SJ A22TK-2LL-03-K01-SJ A22TK-2RL-01-K01-SJ A22TK-2RL-11-K01-SJ A22TK-2RL-02-K01-SJ A22TK-2RL-12-K01-SJ A22TK-2RL-21-K01-SJ A22TK-2RL-03-K01-SJ A22TK-2LR-01-K01-SJ A22TK-2LR-11-K01-SJ A22TK-2LR-02-K01-SJ A22TK-2LR-12-K01-SJ A22TK-2LR-21-K01-SJ A22TK-2LR-03-K01-SJ A22TK-2RR-01-K01-SJ A22TK-2RR-11-K01-SJ A22TK-2RR-02-K01-SJ A22TK-2RR-12-K01-SJ A22TK-2RR-21-K01-SJ A22TK-2RR-03-K01-SJ A22TK-2LL-01-01-SJ A22TK-2LL-11-01-SJ A22TK-2LL-02-01-SJ A22TK-2LL-12-01-SJ A22TK-2LL-21-01-SJ A22TK-2LL-03-01-SJ A22TK-2RL-01-01-SJ A22TK-2RL-11-01-SJ A22TK-2RL-02-01-SJ A22TK-2RL-12-01-SJ A22TK-2RL-21-01-SJ A22TK-2RL-03-01-SJ A22TK-2LR-01-01-SJ A22TK-2LR-11-01-SJ A22TK-2LR-02-01-SJ A22TK-2LR-12-01-SJ A22TK-2LR-21-01-SJ A22TK-2LR-03-01-SJ A22TK-2RR-01-01-SJ A22TK-2RR-11-01-SJ A22TK-2RR-02-01-SJ A22TK-2RR-12-01-SJ A22TK-2RR-21-01-SJ A22TK-2RR-03-01-SJ Accessories Name Remarks Material: Polycarbonate resin A22Z-B101Y The A22Z-B101Y do not support 2NO, 2NC, or 1NO + 1NC One-piece Switch Blocks. The Control Box One hole, yellow box A22Z-B201Y do not support A22-series Alternate-action Switches. They also do not A22Z-B201Y support 2NO, 2NC, or 1NO + 1NC One-piece Switch Blocks. 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. 6 Appearance Classification Model A22TK Specifications Approved Standard Ratings * UL, cUL (File No. E41515): 6 A at 220 VAC, 10 A at 110 VAC * TUV (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 Certification body UL *1 TUV SUD CQC(CCC) KOSHA Standards File No. UL508, C22.2 No.14 E41515 EN60947-5-1 (certified direct opening Consult your OMRON mechanism) representative for GB/T 14048.5 details. EN60947-5-1 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) Rated carry current (A) 10 Rated current (A) Rated AC15 AC12 DC13 DC12 voltage (inductive (resistive (inductive (resistive (V) load) load) load) load) 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 Characteristics Item Model Allowable Mechanical operating frequency Electrical Insulation resistance Between terminals of Dielectric same polarity strength Between each terminal and ground A22TK 30 operations/minute max. 30 operations/minute max. 100 M min. (at 500 VDC) 2,500 VAC, 50/60 Hz for 1 min. 2,500 VAC, 50/60 Hz for 1 min. 10 to 55 Hz, 1.5-mm double Vibration resistance *1 amplitude (within 1 ms) Destruction 1000 m/s2 Shock resistance Malfunction *1 250 m/s2 max. Mechanical 100,000 operations min. Durability Electrical 100,000 operations min. Ambient operating temperature *2 -20 to +70C Ambient operating humidity 35% to 85%RH Ambient storage temperature -40 to +70C Degree of protection IP65 *3 Electric shock protection class Class II PTI (tracking characteristic) 175 Degree of contamination 3 (EN60947-5-1) *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. 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: 202C (2) Ambient humidity: 655% RH (3)Operating frequency: 20 operations/minute 2. Minimum applicable load: 10 mA at 5 VDC Structure and Nomenclature Key * Two keys are provided. Operation Unit Switch 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 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.) 7 A22TK Dimensions (Unit: mm) Switch A22TK-2LL A22TK-2RL Lock Plate (included) (A22Z-3380) Lock Plate (included) (A22Z-3380) Key Key 30 dia. 27 dia. 29.5 dia. 30 dia. 27 dia. 29.5 dia. 34 16.5 32.2 34 1 5.9 0.5 10.9 16.5 54.7 32.6 32.2 1 5.9 0.5 10.9 54.7 32.6 Accessories Control Box A22Z-B101Y (1 hole) Cable Draw-out Hole (Top View) 4-4 x 38 tapping screw 0.3 22.10.1 dia. 2-R3 56 36 68 41 2.80.1 Mounting Hole Two, 21 dia. Side lead draw-out hole 4.3 6.3 10 20.50.1 (10 x 36) 0.6 depression 161 dia. (Side lead draw-out hole) 20 75 32 39 41 Two, mounting holes 69.5 Control Box A22Z-B201Y (1 hole) Cable Draw-out Hole (Top View) Four, M4 Screws 0.3 22.10.1 dia. 2.80.1 Mounting Hole 54 2-R3 68 36 Two, 21 dia. Side lead draw-out hole 4.3 6.3 10 20.50.1 (10 x 36) 0.6 depression Two, 191 dia. (Side lead draw-out hole) 16 30.5 68 40 Two, mounting holes 60 Terminal Arrangement (Bottom View) 2 Contacts 3 Contacts 20.7 10 LOC OPEN LOC OPEN 16.7 16.7 M3.5 screws Switch blocks Switch blocks Terminal Connection Type Terminal connection (Bottom View) SPST-NO/SPST-NC DPST-NC DPST-NC + SPST-NO DPST-NO + SPST-NC TPST-NC 1 3 1 1 1 1 3 1 3 3 1 1 1 2 4 2 2 2 2 4 2 4 4 2 2 2 Non-lighted 8 A22TK Installation Mounting to the Panel (1) Preparing the Panel (3) Mounting the Switch on the Operation Unit * The panel dimensions are shown below. * Recommended panel thickness: 1 to 5 mm. 3.2 +0.2 0 * 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. 2-R0.8MAX. Lever 24.1 +0.4 0 Switch Unit Arrow mark 22.3+0.40 dia. * 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. Operation Unit (2) Mounting the Operation Unit on the Panel (4) Removing the Switch * 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. * 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 screwdriver. Key Operation Unit Arrow mark Projecting part Mounting ring OPEN Rubber washer 22+0.4 0 dia. Panel LOCK 22 dia. Screwdriver 24.1+0.4 0 Lock Ring Installing/Removing the Switch Blocks (1) Installing the Switch Blocks (2) Removing the Switch Blocks Wiring * 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. * 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. * Loosen the terminal screw from the Switch Unit until it completely comes off the groove, insert a screwdriver as shown in the following figure, then push up the washer in the direction indicated by the arrow to temporarily secure it. Now, a round crimp terminal can be connected. After inserting the terminal, tighten the screws to complete wiring. Washer Lever Mounting Latch Screwdriver Screw Screwdriver Protrusion Switch block Use either of the following screwdrivers. Flat-head screwdriver 3 to 6 mm Phillips screwdriver 3 to 6 mm dia. 9 A22TK Application Examples 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 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. Lock release enable signal S5 S4 Feedback loop Emergency Stop Switch Guard lock Safety-door Switch KM1 KM2 S1 S2 KM1 +24V Open Condition monitoring of Safety-door Switch Guard M1 G9SX-BC202 (Unit 1) S6 KM2 A1 T11 T12 T21 T22 T31 T32 T33 Y1 +24V Control circuit OPEN A2 S3 Enabling Switch KM1 KM2 Feedback loop (2) (4) (1) (3) S8 Selector Switch A22TK S14 S24 L1 L2 X1 X2 PLC etc. KM3 +24V S7 KM4 +24V A1 T11 T12 T21 T22 Open Open Y1 Y3 M1 M2 T61 T62 T71 T72 Open Open Y2 Y4 AND T31 T32 T33 T41 T42 OFF G9SX-GS226-T15 (Unit 2) Manual +24V Control circuit KM3 Auto KM4 A2 S14 S24 S44 S54 KM3 KM4 L1 X1 X2 X3 X4 UA PLC etc. Indicator (Diagnostic check enabled) 10 UB Indicator (Diagnostic check enabled) M2 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 Timing Chart <G9SX-BC202(Unit 1)> (10) Emergency Stop Switch S1 Reset switch S2 Unit 1 S14, S24 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. KM1, KM2 NO contact Unit 1 Logical AND output L1 <G9SX-GS226-T15(Unit 2)> Unit 2 Logical AND input T41 Lock release switch (3) (8) S5 Guard Lock S4 Safety-door Switch (4) (6) Enabling Switch S3 (1) (5) (7) (9) Reset switch S7 Mode selection input M1 (Selector Switch S8) (2) Mode selection input M2 (Selector Switch S8) Unit 2 S14, S24 KM3, KM4 NO contact (1) (2) (3) (4) (5) (6) (7) (8) Start the unit 2 in normal operating mode. Switch to maintenance mode by operating the selector switch. After checking that the motor has stopped, press the lock release switch to release the guard lock, and open the door to perform maintenance. Grip the enabling switch to the middle position. Press the reset switch to start the unit 2 in maintenance mode. Release (or grip) the enabling switch to stop the unit 2. After closing the guard and switching to operating mode by operating the selector switch, press the reset switch to restart the unit 2. 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. 11 A22TK 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 DANGER 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. CAUTION 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 A22Z3380 Lock Plate so that the Operation Unit cannot be easily separated from the Socket Unit. (Refer to "Mounting the Lock Plate" at the right.) 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. Precautions for Correct Use [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 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. 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. 12 A22TK 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 Mounting Latch until it clicks into place. After mounting the Lock Plate, check that the lever does not move. The minimum applicable load is the N-level reference value. This value indicates the malfunction reference level for the reliability level of 60% ( 60) (conforming to JIS C5003). The equation, 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%. Voltage (V) 0.16mA 100mA 1.6mA 30 2. Lock Plate Lever 1. 24 OPEN LOCK Microload area Operation Unit Area of use Standard load area 12 Mounting Latch Invalid area 5 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. 1mA 10mA 1 10 0 0.1 100 1,000 Current (mA) 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. Naked Crimp Terminals 8 mm max. 16.0 mm max. Crimp Terminals with Insulating Sheaths 8 mm dia. max. 16.0 mm max. 8 mm max. 20.2 mm max. 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. 8 mm dia. max. 20.2 mm max. Do not allow the Switch to drop and hit the floor. * 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 Do not place or drop heavy objects on the Switch. * 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. Do not operate the Switch with hard or sharp objects. 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. Hammer Screwdriver * 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. 13 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. OMRON Corporation Industrial Automation Company Authorized Distributor: Kyoto, JAPAN Contact: www.ia.omron.com Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69, 2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 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 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 (c) OMRON Corporation 2009-2017 All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. CSM_9_3_1018 Cat. No. A189-E1-02 0917 (0409)