PN# 500-16900
Page 17
Rev. D, 12/11
APPENDIX A: COMMAND SUMMARY
WITH THE UNIT IN PROGRAM MODE (FAST YELLOW FLASH):
00 followed by 5-7 digits sets Program code
01 followed by 2-7 digits set first User code
02-followed by 2-7 digits sets second User code
Additional User codes can be set up to the prefix 59 (total 59 User codes)
70 will sound beeper when door is open (except toggle mode). Echo and prompt beeps are
retained
71 will silence beeper at all times
72 will return beeper to factory set
73 will reverse light logic (red to echo, green to show door is open)
74 will return light logic to normal
75 will direct Hard code to programmable relay for duress (entering Hard code releases door and
switches programmable relay)
76 will transfer programmable relay to alarm function (16 wrong digits switches programmable
relay as well as locking out keypad for 30 seconds)
77 will transfer programmable relay to light function (relay operates for 5 seconds when any key
is pressed.)
78 will return programmable relay to doorbell function.
79 is alternate code delete. Any valid code entered directly after the 79 command will be
deleted
80 re-assigns the HCD terminal to anti-tailgating
81 re-assigns the UCD terminal to anti-tailgating
82 re-assigns the HCD terminal to door prop alarm
83 re-assigns the UCD terminal to door prop alarm
(Note the door prop alarm function automatically includes anti-tailgating)
84 returns either input to original (code disable) meaning
88 will erase all user codes (not Program or Hard code)
89 will return all functions (including timer) to factory set. Codes are unchanged.
Pressing 9 when in program mode sets the timer. Two digit codes must be entered from 01 to
99 seconds. Default is 5 seconds. Entering 00 sets toggle mode.
APPENDIX B: TROUBLESHOOTING
Note first that the DK-26 replaces older Securitron keypads: the DK-20, DK-20+ and DK-25.
The DK-26 keypad and CPU board are not compatible with any of the older units so make sure
you have both a DK-26 keypad and DK-26 CPU board. If the keypad label is missing, you can
identify a DK-26 keypad by the fact that it has three LED’s. The DK-26 circuit board is marked
with its name. Also, as you are going through these troubleshooting points, note that the goal is
to get the unit working, but if this is not possible, to identify whether the failure is in the keypad
or in the CPU board.
PROBLEM-- Unit appears dead.
First check that power has been correctly connected and use a voltmeter on the CPU board to
make sure that the correct voltage level is present. 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.
If the DK-26 is receiving specified voltage, briefly short terminal SRC to terminal REX. You
should hear the relay click. This confirms that the CPU board is working but for some reason,
it’s not reading the keys. Make sure that the keypad cable is connected exactly as shown in
Figure 2. It is fairly easy to skip a terminal when connecting the keypad cable and also a strand
of wire may jump between two terminals. Pay particular attention to the keypad white wire
going into terminal WHT. If this wire is not connected, the keypad will appear to be dead.
Summary of Contents for Securitron DK-26
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