Assa Abloy Securitron DK-26 Installation And Operating Instructions Manual

Assa abloy dk-26 digital keypad system

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Page 1 ASSA ABLOY, the global leader in door opening solutions MODEL DK-26 DIGITAL KEYPAD SYSTEM INSTALLATION AND OPERATING INSTRUCTIONS Securitron Magnalock Corp. Tel 775.355.5625 550 Vista Boulevard Fax 775.355.5633 Sparks, NV 89434 info@securitron.com www.securitron.com © Copyright, 2009, all rights reserved PN# 500-16900...
Page 3: Table Of Contents
Fax 775.355.5633 in door opening solutions Sparks, NV 89434 info@securitron.com www.securitron.com SECURITRON MODEL DK-26 DIGITAL KEYPAD TABLE OF CONTENTS AND GUIDE TO THIS MANUAL SECTION 1. DESCRIPTION -------------------------------------------------------------Page 3 SECTION 2. PHYSICAL INSTALLATION ----------------------------------------------Page 3 SECTION 3. WIRING --------------------------------------------------------------------Page 4 SECTION 3.1 POWER SELECTION -----------------------------------------------------Page 4...
Page 4: Securitron Model Dk-26 Digital Keypad
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.
Page 5: Section 3.2 Connecting The Keypad Cable To The Cpu Board
Referring to figure 2, select a transformer of the same output voltage as the lock (12 or 24 VAC). Make sure the capacity of the transformer is large enough to operate both the DK-26 and the lock and that the transformer is UL listed under the UL 294 standard.
Page 6: Section 3.3.3 Dc Lock With Dc Power
For convenience and economy, most DC electric locks can be operated from an AC transformer when the DK-26 is used. Select a transformer of the same voltage as the lock (12 or 24). The CPU board converts the input AC to DC to operate the lock. Make sure the capacity of the transformer is large enough to operate both the DK-26 and the lock and that the transformer is UL listed under the UL 294 standard.
Page 7 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.
Page 8: Section 3.4 Use Of The "F" Terminal
The connection to the fire alarm contacts is normally made in the power supply but if you are using a plug in power supply, you’ll want to make the connection on the DK-26 CPU board where you have terminals.
Page 9 Figure 6, the push button NC contacts can be metered on the DK-26 CPU board. If for any reason a failure occurs with the DK-26, a person can still exit by holding the exit button down while pushing the door open. Note, you should always consult your local building or fire department when securing doors that are part on an emergency exit path to make sure you are complying with local codes.
Page 10: Section 4. Programming
The DK-26 has ten numbered keys and a bell key which is used for several functions. Each of these keys is read separately by the unit, so the DK-26 is a true 11 digit access device. This provides excellent security against a code being guessed. Also, the DK-26 employs non-volatile EEPROM memory so that all programming is retained in a power failure.
Page 11: Section 4.2 Keypad Changeable Programming
Section for fixed code programming. 4.2 KEYPAD CHANGEABLE PROGRAMMING In this application, two codes are programmed into the DK-26. The first, called the Program code acts as a password which allows changing the User code. It is the User code which is employed regularly to gain access.
Page 12: Section 4.2.2. Adding Multiple User Codes
Press Bell key to terminate program mode or wait 30 seconds The logic behind this procedure is as follows. All programming for the DK-26 starts with putting the unit into program mode (except entering the single Hard code). The unit is put into program mode by either pressing the “Prgm Code”...
Page 13: Section 4.3 "Masterkey" Use Of The Hard Code
User code was a subset of the Program code. The unit could not be put into program mode from the keypad. The DK-26, however, avoids this problem by rejecting any code that is a subset of another code in memory. It signals this rejection by showing the single red (error) flash instead of the two-flash confirmation signal.
Page 14: Section 4.6 Setting The Time Range And Toggle Mode
30 seconds. Enter a correct User code to test that the changed time is working. The DK-26 will operate in toggle mode if key 9 followed by 00 is entered when the unit is in program mode. In toggle mode operation, the relay will energize when a correct code is entered and deenergize when a correct code is entered a second time.
Page 15: Section 6 Use Of The Programmable Relay
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 relay (if any) and the following sections lay out the choices.
Page 16: Section 6.4 Door Prop Alarm Function
6.4 DOOR PROP ALARM FUNCTION CONNECT A DOOR This function provides enhanced security at the door UCD HCD SWITCH WHICH by creating an alarm signal any time the door is left OPENS WHEN THE open too long while being used for entry or exit. DOOR OPENS TO With the function enabled, select a relatively long UCD OR HCD...
Page 17: Section 7.2. Hard Wired Code Disabling
7.3 ALARM SYSTEM SHUNTING The DK-26's lock control relay is of the double pole, double throw type. Note that in all the other drawings in this manual, we show only one of the poles being used (C1, NC1 and NO1).
Page 18: Section 7.4 Anti-Tailgating
Note that a variation of this wiring scheme could be desired if you are using the second pole of the DK-26’s lock control relay to shunt an alarm system (see Section 7.3). You would then want the Touch Bar to operate the DK-26’s lock control relay in double break fashion so that the alarm system is shunted both for entry and exit.
Page 19: Appendix A Command Summary
If the voltage reads very low, the problem may be that a fail safe lock being controlled by the DK-26 is drawing too much current for the power supply. Remove the lock from the circuit. If this restores proper voltage and operation of the DK-26, you'll have to determine if the power supply is undersized or if there is a short circuit in the lock wiring which is pulling down the power supply.
Page 20 The DK-26 employs three special type fuses called PolySwitches. PolySwitches look like capacitors. To identify them on the board note the drawing to the right.
Page 21 PROBLEM-- Keys do not operate but a beep is heard every five seconds This is a diagnostic feature which indicates that one of the keys is being read as down (always being pressed). In that condition, the CPU board will not be able to read any other keys. It can happen because of mechanical failure within the switch element such that the key really is down, or keypad wires that are shorted to each other.
Page 22 come on, the problem is with the LED in the keypad or with the internal wiring within the keypad. The keypad will have to be replaced to restore operation of the LED. PROBLEM-- Error signal (one second long red pulse) received while programming Anytime you receive an error signal, retry the programming operation.
Page 23 If the problem shows up frequently, it is usually bad power. This particularly occurs when a fail secure lock is operated from the same supply as the DK-26. When the lock is energized, it may draw too much power for the power source. This reduces the voltage and these voltage swings can crash the microprocessor.

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