Velleman HAA2801 - Manual (Page 17)

17
2) BASIC WIRINGS OF AN INTER-LOCK SYSTEM USING TWO SPLIT-DECODED KEYPADS
An inter-lock system needs two door controllers. This application example uses two keypad systems
with simple cross wire connection on their "Output 1 Inhibit" and "Inter-lock Control Output" terminals.
It is necessary to link up the "(-) GND" terminals of the two keypads as common ground to achieve
the inter-lock logical functions.
• Use keypad to open the door from outside
• Press egress button to open the door from inside
• Connect the door magnetic sensors on the doors to monitor their positions
• While door 1 is open, then, door 2 is forced to keep close, or vice versa
• Use N.O. Relay output for fail-secure lock; and N.C. output for fail-safe lock
• Please also see the "NOTE" stated in the Application Example (1)
- ALARM O/P
- KEY ACT O/P
- N.O.
- COM
- N.C.
- N.O.
- COM
- N.C.
- N.O.
- COM
- N.C.
- TAMPER
- GND(-)
- DOOR SENS
- O/P 1 INHIB
- INT. LOCK
- DU OUT
- DOOR BELL IN
- EG IN
- DATA I/O
- KEYPAD PWR
- GND(-)
- 12-24V DC
N.O. ELECTRIC LOC
K
1N4004
DOOR 1
OUTPUT RELAY
1
N.O. Output for Fail-secure Loc
k
N.C. Output for Fail-safe Loc
k
N.C.
OUTPUT
1
OUTPUT 2
OUTPUT
3
DIGITAL KEYPAD
AD-1312 OR AP-960 EGRESS BUTTON DOOR BELL BUTTON
N.O.
(-
)
(-
)
N.O.
DOOR
1
SENSING
COMMON GROUND
(-
)
DA-2800 OR DA-2801
DA-2800 OR DA-2801
CROSS WIRE CONNECTION FOR INTER-LOCK FUNCTIONS
- ALARM O/P
- KEY ACT O/P
- N.O.
- COM
- N.C.
- N.O.
- COM
- N.C.
- N.O.
- COM
- N.C.
- TAMPER
- GND(-)
- DOOR SENS
- O/P 1 INHIB
- INT. LOCK
- DU OUT
- DOOR BELL IN
- EG IN
- DATA I/O
- KEYPAD PWR
- GND(-)
- 12-24V DC
N.O. ELECTRIC LOC
K
1N4004
DOOR
2
OUTPUT RELAY
1
N.O. Output for Fail-secure Loc
k
N.C. Output for Fail-safe Loc
k
N.C.
OUTPUT 1
OUTPUT
2
OUTPUT
3
DIGITAL KEYPAD
AD-1312 OR AP-960
EGRESS BUTTON DOOR BELL BUTTON
N.O.
(-
)
(-
)
N.O.
DOOR
2
SENSING