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Position首頁 > Home > Industrial Safety Products > Safety interlock switch > Mechanical door lock

D3SL-Y Series Interception Key Safety Door Interlocking

?It is an effective solution in the field of industrial safety. At the same time, based on the modular design principle, Leehom Safety Interlocking can construct the interlocking system solution more flexibly and simply.

?The functions of internal release/authorization key/safety key and emergency stop button can be integrated in the traditional emergency door switch and electromagnetic emergency door lock.

?While ensuring the reliability of the application in any harsh and dangerous operating environment, it can still meet the requirements of applications with safety levels of SIL3(EN/IEC62061) and PLe(IS013849-1).

?It has passed TUV safety certification and is widely used in metallurgy, automobile, food and beverage industries.

▊	Product selection table

picture	Name and parameters of accessories
	Accessories 1: Lock Head and Lock Handle It can be applied to hinged doors or sliding doors. Stainless steel casting material Endurance: 2500N
	Accessory 2: Security Key Adapter The device can ensure that the machine/equipment cannot be accidentally restarted when the safety key is not in place. Can prevent the operator from being accidentally locked in the protection zone. Can be superimposed or combined with other security key adapters (multi-person operation) An interlocking system can be integrated with Leehom interlocking series products at the same time. A security door can choose up to 5 security key adapters.
	Accessory 3: Safety Door Interception Key There are as many as 200,000 different combinations of coding ability. Can be equipped with universal lock core. Provide engraving service
	Accessories 4: lock body of safety door switch Double safety circuits are used to realize the interlocking between the machine operation and the safety door. Suitable for machines that need to go in and out frequently without stopping time. Non-electromagnetic coil control The indicator light can identify the state of the safety door. Provide internal terminal, express cable and safety bus interface. control voltage 24VAC/DC 48VAC/DC

▊	technical parameter

texture of wood	Zinc alloy BSEN 12844 standard Stainless steel BS3146 standard
Surface painting	Glossy polyester powder coating
colour	Red, black, stainless steel
Waterproof grade	IP67
Operating force	0.5N
Locking force	2500N
Mechanical part life	＞1000000次
Applicable temperature	-5℃ to +40℃
main switch	Positive electrode disconnection
Control current	3A
Switching voltage	48V
switch contact	4NC/2NO,2NC/1NO,2NO/2NC
Contact material	90% silver, 10% nickel

▊technical description

The product configuration has the following functions:

?Handle-type lock tongue+lock head: integrated operating handle, no need to install additional door handle, allowing the protection door to deviate or deform, and the lock head orientation can be adjusted in four 90 directions.

?Safety door switch lock body: provide double safety loops and provide LED status indication.

?Mandatory safety key: the lock tongue can only be unlocked by pulling out the safety key. Take the safety key into the dangerous area to ensure that the equipment cannot be accidentally started by others.

Description of status indicator:

?During normal production, the safety door is closed and the indicator light is not lit.

?When the safety door is opened, the red indicator lights up.

▊Open dimension unit: mm

▊Schematic diagram of circuit

The following figure shows the circuit schematic when the lock tongue is inserted:

電路示意圖.png

Terminal definition:

Terminal 1 and terminal 5: safety circuit 1, which changes from normally closed to normally open when the safety door is opened.

Terminal 2: 24V

Terminal 3 and 7: safety circuit 2, which changes from normally closed to normally open when the safety door is opened.

Terminal 4: 0V

Terminal 6: When the safety door is opened, the contact voltage is 24V.

▊	Application paradigm

D3SL-Y series application example a

In this case, the D3SL-Y product provides a mechatronic solution for the field of robot safety protection.

1. Press the enter command button to stop the machine. The lock controlled by electromagnetic coil limits that the key can only be released in the protected area or the machine is in a safe state (yellow LED indicator light shows the state).

Two safety keys A can be pulled out, and the status is displayed on the red LED indicator.

2. The key A is used to lock the door, and the security key B is released at this time. Key B is brought into the protection area as a safety key to prevent people from being locked in or the machine from being restarted accidentally.

Reverse operation can safely restart the machine.

Application example b of D3SL-Y series

In this case, there is a debugging switch in the potentially dangerous safety protection zone.

1. Turn and pull out the key on any POK key switch, and the machine will stop after completing the working cycle. At this time, the electromagnetic coil can enter the protection area after being connected.

The operator can bring the safety key into the protection area to prevent the machine from restarting.

2. Insert the key into the POD key switch in the protected area to start the safe debugging mode.

3.LOK internal release device can open the protection area from the inside to prevent people from being locked into the protection area by mistake. By hitting the internal release button on the lock body, the lock tongue is released from the lock head and the door can be opened from the inside.