Summary of the content on the page No. 1
PN# 500-16900
Rev. A.2, 10/03
SECURITRON MODEL DK-26 DIGITAL KEYPAD
TABLE OF CONTENTS AND GUIDE TO THIS MANUAL
The DK-26 is a powerful and versatile product with many features and modes of operation. In
most applications you will use only some of these features so this table of contents includes a
description of the type of application that applies to each different section. By studying it first,
you can save considerable time by skipping over those parts of the manual that don't ap
Summary of the content on the page No. 2
Rev. A.2. 10/03 SECTION 4.2 KEYPAD CHANGEABLE PROGRAMMING-----------------------------Page 12 This section explains how to set up easy code change from the keypad by employing a Program code which is relatively constant and a User code which is often changed for better security. SECTION 4.2.1 CHANGING THE USER AND PROG. CODE FROM KEYPAD --Page 13 This details the code changing procedure that should be taught to the end user. SECTION 4.2.2. ADDING MULTIPLE USER CODES-------------------
Summary of the content on the page No. 3
Rev. A.2. 10/03 SECTION 6.3 ANTI-TAMPER ALARM FUNCTION ---------------------------------Page 18 Someone entering 16 wrong digits while attempting to guess the code will activate the programmable relay. SECTION 6.4 DOOR PROP ALARM FUNCTION -----------------------------------------Page 18 The programmable relay will activate if the door is left open too long. SECTION 6.5 NIGHTLIGHT FUNCTION-----------------------------------------------------Page 19 The programmable relay will activate
Summary of the content on the page No. 4
Rev. A.2, 10/03 Page-1 SECURITRON MODEL DK-26 DIGITAL KEYPAD INSTALLATION & OPERATING INSTRUCTIONS 1. DESCRIPTION Securitron's DK-26 is a digital keypad system designed for medium/high security control of electric locks. It consists of two components: the keypad and the CPU board connected by a 16 ft. cable. This allows the CPU board to be mounted within the protected area for higher security. Tampering with or even destroying the keypad will not release the door. The
Summary of the content on the page No. 5
MOUNTING SURFACE Rev. A.2, 10/03 Page-2 FIG. 1: PHYSICAL INSTALLATION OF KEYPAD (1) MOUNT SCREW TO ENGAGE SLOT AT TOP OF KEYPAD DRILL 1/8" (3MM) HOLE CABLE (2) DRILL 3/8" (10MM) HOLE FOR CABLE (3) SECURE BOTTOM WITH SECOND SCREW. COVER SCREW HEAD WITH "DK-26" LABEL. DRILL 1/8" (3MM) HOLE NOTE: CHOOSE PHILIPS OR SPANNER (TAMPER) HEAD SCREW The CPU Board is furnished in a snap-apart steel enclosure with the board itself mounted on plastic snap-trak. The CPU Board must be installed in
Summary of the content on the page No. 6
Rev. A.2, 10/03 Page-3 3. WIRING 3.1 POWER SELECTION The DK-26 operates on 12 to 24 volts AC or DC. Nearly all electric locks operate on voltage within this range, so the power supply you would normally utilize to operate the electric lock will also operate the DK-26. Power consumption of the DK-26 depends on voltage and is shown on the following chart: DK-26 POWER CONSUMPTION: 12 VOLTS 24 VOLTS REST STATE (MIN) 7 mA 20 mA RELAYS, LED’S, + BEEPER ON (MAX) 160 mA 190
Summary of the content on the page No. 7
GREEN GRN LED YELLOW YEL LED RED RED LED BLUE BEEPER WHITE COMMON KEYS BLACK GRAY KEYS BROWN KEYS BEIGE KEYS KEYS ORANGE DISABLE HARD CODE PINK KEYS DISABLE ALL USER CODES KEYS VIOLET REX INPUT (REMOTE RELEASE) COM. FOR REX, UCD, HCD TERMS PS3 PS2 PS1 PUSH TO PROGRAM HARD CODE PUSH TO SET PROGRAM MODE AC IN F DC IN/OUT Rev. A.2, 10/03 Page-4 FIG. 2: OVERVIEW OF CPU BOARD KEYPAD CABLE MICROPROCESSOR 12/24 AC POWER AUX. FREE TERMINAL SOCKET 12/24 DC NEGATIVE SPDT 12/24 DC POWER + + DPDT RE
Summary of the content on the page No. 8
AC IN F DC IN /OUT Rev. A.2, 10/03 Page-5 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
Summary of the content on the page No. 9
AC IN F DC IN /OUT Rev. A.2, 10/03 Page-6 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
Summary of the content on the page No. 10
AC IN F DC IN /OUT AC IN F DC IN /OUT NC C Rev. A.2, 10/03 Page-7 FIG 5: DC LOCK - DC POWER WIRING POWER SUPPLY NOTE: MOV NOT REQUIRED IF SECURITRON MAGNALOCK IS USED + + 12 OR 24 VDC IF FAIL SECURE NC1 C1 NO1 + DC FAIL SECURE OR FAIL SAFE LOCK DC POWER NEED NOT MOV BE REGULATED IF FAIL SAFE 3.4 USE OF THE “F” TERMINAL FIRE ALARM The F terminal on the power strip is not connected to CONTACTS anything. It is a free terminal with either of two intended uses. First, on some complicat
Summary of the content on the page No. 11
AC IN F DC IN /OUT AC IN F DC IN /OUT C C Rev. A.2, 10/03 Page-8 lock and if it’s fail secure, the switch will need to send power to the lock. Figure 6 shows how to add external contacts for non timed remote release of the lock for both lock types. FIG. 6: ADDING EXTERNAL CONTACTS FOR FAIL SAFE AND FAIL SECURE LOCKS FOR NON-TIMED REMOTE FOR NON-TIMED REMOTE RELEASE OF FAIL SECURE RELEASE OF FAIL SAFE LOCK, PLACE NC CONTACTS LOCK, PLACE NO CONTACTS IN CIRCUIT AS SHOWN IN CIRCUIT AS S
Summary of the content on the page No. 12
AC IN F DC IN/OUT Rev. A.2, 10/03 Page-9 When using exit switches, the possibility must be considered that an electronic failure may occur to the DK-26 and a person will not be able to exit. If the DK-26 controls the only door exiting the area, additional steps should be taken to improve the reliability of exiting so as to avoid trapping someone. This can most easily be done by implementing a secondary means of releasing the lock not dependent on the DK-26's REX input. Additional switch
Summary of the content on the page No. 13
AC IN F DC IN/OUT Rev. A.2, 10/03 Page-10 FIG. 8: DOUBLE BREAK WIRING FOR FREE EGRESS (SPDT SWITCH) C NC + NO FAIL SAFE CPU BOARD ELECTRIC SPDT MOV SWITCH LOCK + REX NC1 C1 WHEN THE EXIT SWITCH IS ACTIVATED, THE NC CONTACTS OPEN WHICH RELEASES THE FAIL SAFE LOCK. AT THE SAME TIME, THE NO CONTACT DIRECTLY ACTIVATES THE REX INPUT. THIS DEENERGIZES THE LOCK CONTROL RELAY WHICH RELEASES THE LOCK "A SECOND TIME" FOR THE AMOUNT OF TIME THAT HAS BEEN PROGRAMMED. IF THE DK-26 SUFFERS A FAILURE, TH
Summary of the content on the page No. 14
Rev. A.2, 10/03 Page-11 "traffic control" applications, as the longer the code remains unchanged, the greater the risk that an unauthorized person will be able to learn it. The DK-26 makes it simple for you to program the unit in this “fixed” way. You will utilize a push button set, single code called the “Hard code”. With power applied to the unit, note that the yellow LED is on steadily. This signals that all code memories are empty. This is important as you don’t want any unknown c
Summary of the content on the page No. 15
Rev. A.2, 10/03 Page-12 codes to be certain that the unit will operate only on the single code you plan to enter. Follow the steps shown below. Press the “Prgm Code” button on the CPU board for one second. Confirm fast flashing yellow LED Enter 0-0 followed by the Bell key (or wait 5 seconds). Confirm two red flashes Enter 8-8 followed by the Bell key (or wait 5 seconds). Confirm two red flashes Extinguish the fast yellow flashing LED by pressing the Bell Key or waiting 30 secon
Summary of the content on the page No. 16
Rev. A.2, 10/03 Page-13 After you’ve completed your entries, test your user and program codes by entering them. The user code should open the door. The program code should cause the yellow LED to flash rapidly (program mode). Exit the program mode by hitting the Bell key. Below we show a step by step summary of programming the two codes. Power up unit; confirm steady yellow LED Press the “Prgm Code” button on the CPU board for one second Confirm rapid flashing yellow LED Within
Summary of the content on the page No. 17
Rev. A.2, 10/03 Page-14 Enter program code, followed by the Bell Key, note rapid yellow flashing LED (program mode) Enter prefix 0-1 followed immediately by a new 2-7 digit User code End your entry with Bell key or wait 5 seconds Note two red LED flashes for confirmation, note rapid yellow flashing LED returns Press Bell key to terminate program mode or wait 30 seconds Re-enter new User code (door should open) The program code should need changing much less often. To do it: En
Summary of the content on the page No. 18
Rev. A.2, 10/03 Page-15 button in the CPU board. It is deliberately kept separate from all programming functions. Another use for it, however, is as a “masterkey” code. For example, consider a facility with multiple DK-26’s under the control of different departments. Each department might want to employ different Program and User codes to restrict cross access but a common Hard code could be established for all of the units so that security management personnel could enjoy universal a
Summary of the content on the page No. 19
Rev. A.2, 10/03 Page-16 To delete all User codes, there is a special prefix. Put the unit into program mode (fast yellow flash) from the “Prgm Code” button or from the existing Program code and enter 8-8. This special prefix will immediately delete all User codes and you’ll immediately receive the two red flashes. There is no need to hit the Bell key as it is used for early termination of sequences that don’t have a fixed length (typically codes). 8-8 as a prefix is a complete command.
Summary of the content on the page No. 20
Rev. A.2, 10/03 Page-17 To return the red/green LED logic to factory set default, put the unit into program mode and enter 7-4. 6. USE OF THE PROGRAMMABLE RELAY The DK-26 CPU board includes a second relay whose 5 Amp, SPDT contacts are marked CX, NCX and NOX (see Figure 2). This relay is employed for different functions which are selected by commands sent to the CPU board while the unit is in program mode. In general, you need to choose the function you want to make active for this re
