1652H4A02 Ed.09
26
Open door alarm
The door has been open for a longer time than defined in parameter
A12
, the open door
alarm is activated.
In order to detect the open door, configuration is required of one of the digital inputs as “door
contact” (
I10
or
I20
=1).
Activates alarm relay (only if
o10
=1) and sound alarm.
HACCP alarm
The alarm is activated should situations be detected which could endanger the integrity of the
products stored in the cold room.
If the temperature of the cold room is higher than that defined in parameter
h1
for a length of
time exceeding that defined in parameter
h2
, the alarm activates, displaying the message
. on screen.
HCP
Upon pressing the mute key, the sound alarm switches off, but the alarm remains.
Once the temperature drops below parameter
h1
, if the mute key has been pressed, the alarm disappears. If the
mute key has not been pressed, the audible alarm deactivates but the HACCP indicator remains in flashing mode,
indicating than a non-confirmed HACCP alarm has occurred.
Press the mute key to confirm an HACCP alarm.
If, during a power failure, a HACCP alarm occurs, when the power supply returns, the HACCP alarm is activated and
the display shows the messages
HCP
and
PF
(power failure) alternately.
Alarm delays
These delays prevent certain alarms from being shown, to allow the installation to recover its normal operation
after certain events.
-Delays in start-up (A3): This delays the activation of the temperature alarms upon receiving power (at start-up
or after a power supply failure) or when exiting Stand-by mode. This allows for the installation to start up
avoiding alarms.
-Delay after a defrost (A4): This delays the activation of the temperature alarms when a defrost completes.
-Delay to minimum and maximum temperature alarm (A5): This delays the activation of the maximum (A1)
and minimum (A2) temperature alarms, from when the temperature in probe 1 reaches the programmed
value.
-Delay to activation of external alarm (A6): This delays the activation of the external alarm, from when the
digital input becomes active.
-Delay to deactivation of external alarm (A7): This delays the deactivation of the external alarm, from when
the digital input becomes active.
-Delay to open door alarm (A12): This delays the activation of the alarm upon detecting that the door is open.
Configuration of alarm relay
(only devices with 5 relays)
Should relay AUX 2 have been configured as an alarm (
o10
=1), parameter
A9
allows for the relay status to be
defined when an alarm is triggered:
A9
=0 Relay active (ON) in the event of an alarm (OFF without alarm)
A9
=1 Relay inactive (OFF) in the event of an alarm (ON without alarm)
