© 2002 Carlo Gavazzi Industri A/S. All rights reserved
31
G 3800 X015 Configuration Software
October 2002
G 3800 X015 Configuration Software
October 2002
G 3800 X015 Configuration Software
October 2002
Time characteristics
In the following figure, “IN” is the input channel of the motion detector or the contact, while “OUT” is the out-
put signal of the same channel. In addtion, the object “Motion detector” has been integrated in the intruder
alarm system (whose alarm siren can also be seen in the below diagram). The number of impulses has been
set to “3”.
t
t
t
PMan_TMotion_1a
t
P2
t
P1
t
P4
t
P3
t
P1
, t
P2
, t
P3
and t
P4
are the points of time at which the motion detector generates a signal. The impulse duration
depends on the characteristics of the detector. T
N
is the set off time retriggered by the impulses t
P2
and t
P3
and
therefore only begins after elapse of the third impulse.
The alarm will not start until after the fourth impulse t
P4
, and only when the time elapse between t
P1
and t
P4
is
less than 10 s.
Alarm siren
IN
OUT
T
N
