Assa DK-26 manual DC Lock AC Power Wiring, DC Lock with DC Power

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Rev. A.2, 10/03

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reduce the switching life of the relay. The arc also creates electronic noise which could cause the microprocessor to malfunction. The MOV should be spliced into the lock power wires as close to the lock as possible. Some DC electric locks have internal kickback protection including all Securitron Magnalocks. You don’t need the MOV for these locks but if you are not sure, it does no harm to install the MOV so long as the lock power is in the 12-24 volt range.

FIG. 4: DC LOCK - AC POWER WIRING

TRANSFORMER

12 OR 24 VAC

 

 

AC

 

 

IN

 

 

F

 

 

DC IN

 

 

 

 

+

/OUT

 

 

NOTE: MOV NOT REQUIRED IF

 

SECURITRON MAGNALOCK IS USED

NC1 C1 NO1

IF FAIL SECURE

 

 

+

DC FAIL SECURE

 

 

 

 

 

OR FAIL SAFE LOCK

IF FAIL SAFE

MOV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.3.3 DC LOCK WITH DC POWER

Select a power supply of the same voltage as the lock (12 or 24). Make sure the capacity of the supply is large enough to operate both the DK-26 and the lock. The DK-26 does not require regulated power but certain specialized electric locks do, so follow the rule of matching the power supply to the requirements of the lock.

DC locks come in “fail secure” and “fail safe” versions. A fail secure lock is secure when not powered and a fail safe lock is secure when powered. All magnetic locks are fail safe. Figure 5 shows correct wiring. The positive DC terminal connects to the common of relay #1 and either the NO1 terminal (if the lock is fail secure) or the NC1 terminal (if the lock is fail safe) connects to the lock’s positive power input. This is shown in dotted lines. You only connect one of these two terminals. Note that some DC locks are polarized and you must be sure to connect the lock power wires correctly to positive and negative. Others are not polarized and it doesn’t matter which way they are connected. Consult the lock instructions.

Note installation of the MOV across the power wires to the lock. The MOV is the small black disk shaped component furnished loose with the DK-26. Its function is to absorb inductive kickback from the lock’s coil. Without the MOV, this kickback voltage will arc over the relay contacts and reduce the switching life of the relay. The arc also creates electronic noise which could occasionally cause the microprocessor to malfunction. The MOV should be spliced into the lock power wires as close to the lock as possible. Some DC electric locks have internal kickback protection including all Securitron Magnalocks. You need not employ the MOV for these locks but if you are not sure, it never does any harm to install the MOV so long as the lock power is in the 12-24 volt range.

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Contents Adding Other Lock Control Switches Connecting the Keypad Cable to the CPU Board1 Changing the User and PROG. Code from Keypad --Page Setting the Time Range and Toggle ModeNightlight Function Wiring with Touch Sense BAR and MagnalockPhysical Installation Physical Installation of Keypad Power Selection WiringDK-26 Power Consumption Volts Power and Electric Lock WiringOverview of CPU Board DC Lock with AC Power AC Lock AC Power WiringDC Lock with DC Power DC Lock AC Power WiringDC Lock DC Power Wiring Adding Other Lock Control SwitchesUSE of the F Terminal REX Function Adding External Contacts for Fail Safe and Fail Secure LocksDouble Break Wiring for Free Egress TWO Pole Switch Fixed Programming ProgrammingRev. A.2, 10/03 Page-11 Keypad Changeable Programming Changing the User and Program Code from the Keypad Masterkey USE of the Hard Code Adding Multiple User CodesDeleting Codes Subset CodesChanging LED and Beeper Operation USE of the Programmable Relay Doorbell FunctionDuress Function Door Prop Alarm Function ANTI-TAMPER Alarm FunctionHardwired Code Disabling Additional Hard Wired OptionsNightlight Function Dual PAD OperationAlarm System Shunting Wiring to Shunt Alarm System on DoorANTI-TAILGATING Wiring of DK-26, Touch Sense BAR and Magnalock Wiring with Securitrons Touch Sense BAR and MagnalockMAGNACARE→ Limited Lifetime Warranty With the Unit in Program Mode Fast Yellow Flash Appendix a Command SummaryRev. A.2, 10/03 Page-ii PROBLEM-- a key isn’t echoed no beep or LED flash PROBLEM-- Door opens on a short code that wasn’t programmed PROBLEM-- How to check the Keypad

DK-26 specifications

The Assa DK-26 is a state-of-the-art electronic locking system designed to provide enhanced security for a variety of applications, including commercial, institutional, and residential environments. This locking solution is characterized by its robust construction, advanced technology, and user-friendly features, making it a popular choice among security professionals.

One of the standout features of the Assa DK-26 is its innovative design, which combines mechanical and electronic security elements. The locking mechanism utilizes a high-security cylinder, ensuring that unauthorized access is thwarted. This cylinder is key-operated, allowing for traditional key entry while also supporting electronic access control, offering flexibility to users.

The DK-26 is equipped with advanced electronic technologies that enhance its functionality. One of the key technologies integrated into this system is RFID (Radio Frequency Identification). This allows users to gain access using key fobs or cards that contain embedded RFID chips. The system can be programmed to allow or deny access based on time schedules, occupancy status, or individual user credentials, providing a high level of control over who can enter a facility.

Another notable characteristic of the Assa DK-26 is its ability to integrate with various security management systems. This compatibility allows for centralized control and monitoring of multiple locking devices, enabling security personnel to efficiently manage access across an entire building or campus. Additionally, the DK-26 features real-time audit trails, which log all access attempts and can be reviewed for security audits or investigations.

The DK-26 is designed for durability and resilience, featuring weather-resistant materials that make it suitable for both interior and exterior applications. Its sleek and modern aesthetic adds to the appeal for businesses looking to maintain a professional appearance while ensuring optimal security.

Installation of the Assa DK-26 is straightforward, as it can be retrofitted to existing door hardware without requiring extensive modifications. This ease of installation, combined with its reliable performance, makes the DK-26 an intelligent choice for anyone looking to upgrade their locking systems.

In summary, the Assa DK-26 electronic locking system combines high-security mechanical features with advanced electronic technologies, making it a versatile and effective solution for securing a diverse range of environments. Its RFID access capabilities, integration with security management systems, and robust construction make it a standout choice in modern security solutions.
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