User guide
HAA2850
v4 - 15.11.2013
8
©Vellema n nv
Note 2: set output 2 to Start/Stop mode (programming option 51) for
On/Off control.
o inter-lock system with 2 keypads
A
12
-
24V AC/DC power supply
(not incl.)
B
output type: N.C. (fail
-
safe) or
N.O. (fail-secure)
P1
egress pushbutton to open
door 1
P2
egress pushbutton to open door
2
L1
electric lock 1
L2
electric lock 2
S1
sensor door 1
S2
sensor door 2
•
While door 1 is open, door 2 is forced in the locked-status and vice-
versa.
•
Use the N.O. relay output for fail-secure locking; use the N.C.
output for fail-safe locking.
Note 1: use the keypad to open the door from the outside, use an egress
button to open it from the inside.
Note 2: use magnetic sensors to determine the positions of the doors.