Ascon tecnologic e33B User Manual

Ascon Tecnologic - e33B - OPERATING INSTRUCTIONS - PAG. 7
5.4 Digital input configuration
The digital input function (available on terminal 12 or instead
of Pr3 input if ip3 = dg) is defined using the iFi parameter
and the action is delayed for the time programmed with pa-
rameter iti. The iFi parameter can be configured for the
following functions:
0 Digital input not active;
1 Cell door opening with NO contact: at input closure (and
after the iti) the instrument displays alternately oP and
the variable set at idS parameter. With this mode of
operation of the digital input activates also the time set
with parameter AoA elapsed which the alarm is activated
to warn that the door has been left open. In addition, at
door opening, the instrument returns to Normal operation
if it was in Eco mode and the Eco mode activation was
enabled through parameter iEt;
2 Cell door opening with NO contact: Similar to iFi = 1
but with evaporator fans stop. In addition, at open door
alarm intervention (AoA), the fans are restarted;
3 Cell door opening with compressor and fan outputs lock
and NO contact: similar to iFi = 2 but with compressor
and fans lock. At open door alarm intervention (AoA)
both the fans and the compressor are re-activated.
4 External alarm signal with NO contact: at input closing
(and after the iti time) the alarm is activated and the
instrument alternately shows on the display: AL and the
variable set with parameter idS;
5 External alarm signal withall control outputs disabled and
NO contact: at input closing (and after the iti time) all
the control outputs are disabled, the alarm is activated
and the instrument alternately shows on the display: AL
and the variable set with parameter idS;
6 Normal/Eco mode selection with NO contact: at input clos-
ing (and after the iti time) the instrument switches to
Eco operation mode. Opening the digital input, the instru-
ment returns in Normal operation mode.
7 Instrument On/Off (stand-by) selection with NO contact:
at input closing (and after the iti time) the instrument
is switched ON while it is placed in Stand-by mode when
the digital input is open;
8 Turbo cycle activation command with NO contact: at in-
put closing (and after the iti time) the instrument starts
a Turbo cycle;
-1, -2, -3, etc. - Features identical to the above but obtained
through a NC contact and a reversed logic operation.
5.5 Outputs and buzzer configuration
The instrument outputs can be configured by the relative pa-
rameters oo1, oo2 and oo3. The outputs can be configured
for the following functions:
ot To control the temperature control device (e.g. Compres-
sor). To manage the cooling control device for neutral
zone control or Cooling (rHC = nr);
df To control the defrosting device;
Fn To control the evaporator fans;
Au To control the auxiliary device;
At To control a silenceable alarm device through a contact
that is NO in normal operation then closed during the
alarm;
AL To control an alarm that cannot be silenced through
a contact that is NO in normal operation then closed
during the alarm;
An To control an alarm with a memory function through
a contact that is NO in normal operation then closed
during the alarm (see alarm memory);
-t To control a silenceable alarm device through a con-
tact that is NC in normal operation then opened during
the alarm;
-L Control an alarm that cannot be silenced through a
contact that is NC in normal operation then opened
during the alarm;
-n To control an alarm with a memory function through
a contact that is NC in normal operation then opened
during the alarm;
on To command a device that must be turned ON when
the instrument is ON. The output is therefore deac-
tivated when the instrument is not powered or is in
standby mode. This mode of operation can be used
as a control of the shop window lighting, anti-fogging
resistors or other utilities;
HE To control a heating device in neutral zone (rHC = nr);
L1 Showcase light connected to Normal/Eco mode. The
output turns ON when the Normal mode is active while it
is turned OFF when the Eco mode is active;
L2 Internal cell light. The output is always OFF and only
switches ON from a digital input signal when it is con-
figured as door opening switch (iFi = 1, 2, 3);
oF Output disabled.
If one of the outputs is configured as auxiliary output (= Au),
its function is set by parameter oFo and its operation can be
conditioned by the time set at parameter otu.
oFo parameter can be configured for the following functions:
oF Auxiliary output not active;
1 Temperature control output delayed with NO con-
tact: the auxiliary output is activated with a delay that
can be set with parameter otu applied to the output
configured as ot. The output is then turned OFF at
the same time as the ot output is disabled. This func-
tion mode can be used as a command for a second
compressor or for all other working utilities according
to the same ot output conditions, but which must be
delayed after the start up of the compressor to avoid
excess electricity absorption;
2 Activation by digital input. The output is activated by
a digital input signal if correctly configured (iFi = 9).
These commands have a bi-stable (toggle) function (at
first pression the output is activated, at the second is
disabled). The Aux output can be turned OFF auto-
matically after the time set at parameter otu.
When otu = oF the output is activated and deactivated only
manually, via the digital input. Differently, the output, once
activated, is turned OFF automatically after the otu time.
This mode of operation can be used as a control of the shop
window lighting, anti-fogging resistors or other utilities.
If present, the internal buzzer can be configured by param-
eter obu for the following functions:
oF Buzzer always disabled;
1 The Buzzer sounds when an alarm is active;
2 The Buzzer sounds when a key pressed (no alarm);
3 The Buzzer sounds when a key pressed and when an
alarm is active.

Ascon tecnologic e33B Specifications

General

Brand	Ascon tecnologic
Model	e33B
Category	Temperature Controller
Language	English