AKO AKO-15690, Руководство пользователя

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1569H042 Ed.03
18
9.6.- Alarms
The unit warns the user with a message on the screen of the activation of a relay or the activation of an acoustic signal in
certain circumstances, according to the programming of the following parameters.
Max/Min Temperature Alarm
Shows the AH or AL message when the temperature in probe 1 reaches the value set in
the A1 (maximum temperature) or A2 (low temperature) parameters.
This value can be:
Absolute (A0=1): A1/A2 should indicate the temperature at which the alarm should
be activated.
Relative to SP (A0=0): A1/A2 should indicate the number of degrees above or
below the set point at which the alarm is activated. This
option allows users to adjust the set point without having to
modify the high and low alarm settings.
Parameter A10 sets the differentials for both parameters (hysteresis).
Activates alarm relay (if P62= 1) and sound alarm.
Example
In a controller we configure the following parameters: SP =2, A1 =10, A10 =2
- If A0=0 (relative to SP), the maximum temperature alarm goes off when probe 1 reaches 12 degrees
and is disabled when it reaches 10 degrees.
- If A0=1 (absolute), the maximum temperature alarm goes off when probe 1 reaches 10 degrees and is
disabled when it reaches 8 degrees.
External alarm/severe external alarm
Displays the message AE (external alarm) or AES (severe external alarm), when the digital
input configured as external alarm or severe external alarm is activated.
The severe external alarm also deactivates all the charges, therefore, the temperature regulation
is stopped. When this alarm disappears the device returns to its normal operation.
At least one of the digital inputs must be configured as external alarm (
P10 or P11 =2) or severe external alarm
( P10 or P11 =3).
Activates alarm relay (if P62= 1) and sound alarm.
Defrost alarm completed by time.
Shows the Adt alarm message when a defrost terminates by time-out, if parameter A8 =1.
DOES NOT activate the alarm relay or the sound alarm, it is only shown on the display.
Door open alarm
Displays the PAb message when the door stays open for a time greater than that set with parameter A12 . (One of
the digital inputs must be configured as door contact ( P10 or P11= 1).
Activates alarm relay (if P62= 1) and sound alarm.
Pump down malfunction error (Stop)
Displays the Pd message if a malfunction is detected when the installation is stopped
using the pump down manoeuvre. (See page 17).
DOES NOT activate the alarm relay or the sound alarm, it is only shown on the display.