1565H041 Ed.03
10 Advanced configurations
10.1.- Digital inputs
They allow the unit to react in certain external events, and their configuration depends on the component that is
connected and has the following options:
Ÿ
Input configuration (1 or 2):
It defines the behaviour of digital input 1.
ž
Disabled: It does not carry out any function.
ž
Door contact: Using a contact installed in the cold room door, it allows conditioning certain functions
of the unit to the door status (if the compressor/fans stop when opened, delay the activation of the
alarms, etc.).
ž
External alarm: It activates the unit's external alarm (See page 22), it can be used as activation of
pressure pre-alarms.
ž
Severe external alarm: It activates the unit's severe external alarm (See page 22), stopping the
installation. It can be used as activation of pressure alarms.
ž
Remote defrost: It activates the defrost remotely, for example using an external button.
ž
Remote energy saving: It activates energy saving remotely, for example using an external button.
ž
Low pressure input: It activates the low pressure alarm (See page 23) and allows controlling the pump
down function (See page 21).
ž
Thermostat control: It uses this function to adjust the temperature using an external thermostat. This
function is usually used when the refrigerator unit has its own built-in thermostat. (See page 16).
Ÿ
Input alarm delay (1 or 2):
It defines the time that passes from when the signal is received until the alarm is
activated. It only works if the input is configured as external alarm, severe external alarm or low pressure input.
Ÿ
Input polarity (1 or 2):
It defines the type of contact present in the digital input (1 or 2);
ž
Normally open: The input activates when the contact closes.
ž
Normally closed: The input activates when the contact opens.
Ÿ
Inact. with door open:
It determines the inactivity time of the compressor and/or fans after the cold room
door is opened. (It requires one of the digital inputs to be configured as "Door contact”). This allows the
installation to continue to operate if the door is accidentally left open.
It only acts if one of the
Stop compressor when opening door
or
Stop fans when opening door
parameters is at "Yes”.
Function of the digital inputs
25
Summary of Contents for AKO-15650
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