Ascon Tecnologic - e34B - OPERATING INSTRUCTIONS - PAG. 13
5.10.2 External alarm from digital input
The instrument can signal an alarm external to the instrument
using the digital input setting
iFi
=
4
or
5
. The instrument
signals the alarm turning
ON
the alarm LED ( ) and display-
ing
AL
label alternated to the variable set with parameter
Ids
.
Mode
iFi
=
4
operates no action on the control output, while
iFi
=
5
deactivates the control output at digital input intervention.
5.10.3 Open door alarm
The instrument can signal the open door alarm coondition using
the digital input setting
iFi
=
1
,
2
and
3
. As the digital input is
activated, the instrument signals that the door is open showing
on the display the
oP
label alternated to the variable set with
parameter
ids
.
After the delay set with parameter
AoA
the instrument signals
the Open Door alarm with the configured devices (buzzer and/
or Output), lighting up the LED while showing the
oP
label.
At the open door alarm intervention are also re-activated the
inhibited outputs (compressor).
5.10.4 Mains voltage alarms
The instrument can automatically disable the control outputs
when the mains voltage, measured by the instrument through
its power supply, is lower or higher than the values set at
parameters:
ULU
Low voltage alarm (expressed as V x 10);
UHU
High voltage alarm (expressed as V x 10).
When the alarm triggers and after the delay programmed to
the
UUd
parameter, the instrument disables the control out-
puts, signals the alarm by activating the configured device
(output and/or buzzer) and shows
HU
(high voltage alarm), or
LU
(low voltage alarm) on the display alternated to the vari-
able set with
dS
parameter.
If the voltage measurement is not correct, it can be changed
with an offset that can be set using the
UOU
parameter.
UHU
e.g. 250 V
ULU
e.g. 200 V
off
off
off
ON
ON
HU
LU
AL
10 V
10 V
Volt
time
V
5.11 Function of keys
/ and /
The
/ key function can be defined using the
tUF
param-
eter to perform the following functions:
oF
The key carries out no function;
1
Pressing the key for at least 1 s, is possible to enable/
disable the
ECO
operating mode. Once the selection has
been made, the display shows for about 1 s the active Set
Point code (
SP1
,
SP2
,
SP3
or
Eco
) and its value. When
the instrument exits the
ECO
operating mode, it returns at
the same operating mode it was using at
ECO
enabling;
2
Pressing the key for at least 1 s is possible to switch the
instrument from
ON
to
Stand-by
state and vice-versa.
The /
key function can be defined using the
tFb
param-
eter to perform the following functions:
oF
The key carries out no function;
1
Pressing the key for at least 1 s, is possible to enable/dis-
able the
L1
light output or the auxiliary output, if config-
ured as
oFo
=
2
.
6. ACCESSORIES
The instrument is equipped with a
TTL
serial communications
port wit a 5 poles connector that allows to connect some ac-
cessories described in the following paragraphs.
6.1
Parameters configuration by A01
Through the
TTL
port and with the
A01
device, is possible
to transfer from and toward the instrument all the functioning
parameters.
The
A01
is mainly usable for the serial programming of some
instruments which need to have the same parameters con-
figuration or to keep a copy of the parameters settings of an
instrument and allow its rapid retransmission.
The same device allows to connect a PC via USB with which,
through the appropriate configuration software for “
AT Univer-
salConf tools
”, the operating parameters can be configured.
To use the device
A01
it is necessary that the device or instru-
ment are being supplied directly or through the key.
AC supply
Supply adapter
12 VDC
Power supply
Ente
r
PW
S
12
V
A B C
TTL
+
-
US
B
to PC
USB
Ente
r
PW
S
12
V
A B C
TTL
+
-
US
B
to PC
USB
For additional info, please have a look at the
A01
instruction
manual.
