Output:
Technical failure output
[OKout]:
Block scheme
BANDIT
Technical output
(
OKout
)
The 3 terminal connectors of the [OKout] are connected with the
COM, NC
and
NO
contact of a
relay. The MCU determines, following the incoming signals from the failure detection electronics,
the status of this relay.
:
Max
500 mA./
12 Volt
hnic
lures
Log; tec
al fai
c
Electronic ircuits
for detection of
t c
e hnical failures
0 V
12 V
MCU
Relay
12 V /
1 A
As long as the internal
BANDIT-
electronics
don’t detect an internal failure, this relay will be
activated
(
COM
and
NC
open)
.
As long as there is detected a failure, the [OKout] contact will be in rest (
COM
and
NO
open).
Following, you’ll find an explanation of the different possible internal failures the
BANDIT
electronics are able to detect:
4
The glass fuse F2 (500 mA from [Supply]) is interrupted.
4
The glass fuse F3 (6.3 A battery fuse) is interrupted.
4
There is no battery or the voltage of the battery is too low.
4
The ambient temperature of the mounted HY-3 pack exceeds 120°F.
4
The heat exchanger can not reach its goal temperature. This can mean:
a) the internal over temperature fuse is interrupted
b) the heating element from the heat exchanger is faulty
4
The internal fan doesn’t run properly.
4
The unit is asking for more than 7 days to exchange its HY-3 pack. This item however is
not a real failure, but an abnormal situation whereby the reliability of the unit is endangered
because of to little amount of fog liquid in reserve. See also page 24, changing HY-3 pack.
4
There is a lack of main power supply for more than 15 minutes (main power or main fuse
F1).
4
The MCU measures unrealistic values through its sensor inputs.
4
Through a connected control box, an internal failure can be simulated .
c
c
OKout
OKout
com nc
nc no
no
p. 25 - Outputs - Technical failure output [Okout]
Log page
Log page
Log page
test
tech out
OK
BANDIT
240
PB
v.
408