AKO 16526A, User Manual

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3516526A02 Ed. 01
21
Set Point change mode
This allows for quick alternation between two working temperatures in the cold room store, modifying the Set Point
in line with the value indicated in parameter C12. The aforementioned value may be negative or positive, which
allows for the Set Point to be reduced or increased. If it is configured in 0, the mode is disabled.
It is activated in three possible ways:
By means of an external switch connected to one of the digital inputs. The digital input should be configured as “Set
Point change (I10 or I20=4). Activation through this method cancels any other activation and can only be deactivated
using the same method.
By means of the AKONet application. This requires the device to be connected to a Modbus network (See page 41).
By means of the CAMM module and the AKO CAMM tool application.
EXAMPLE:
If the SELFDRIVE mode is active:
It is recommended for calibration to be performed with the lowest set point value.
It is recommended that the difference between set points is not greater than 5ºC in negative cold room
stores and 2ºC in positive cold room stores.
Compressor protection timing
Parameter C4 allows for selection of the type of timing to be applied to protect the compressor. These delays prevent
continuous compressor starts and stops.
These timings affect the COOL and AUX 1 relays (if o00=1)
OFF-ON
(C4=0): Minimum time in OFF mode before each start-up.
OFF-ON / ON-OFF (C4=1): Minimum time in ON and OFF mode for each cycle.
The delay time is defined by means of parameter C5; if C5=0, timing is disabled.
Configuration:
I10:
4
I11:
0
Change
Set Point
DIG. IN
Solenoid
D1 Gnd D2 / S3
D1 D1= OFF D1= ON
S1
(SP+C12)+C1
SP+C1
SP+C12
SP
OFF-ON (C4=0)
COOL
ON
OFF
SP SP+C1
C5
OFF/ON / ON-OFF (C4=1)
COOL
ON
OFF
SP SP+C1
C5 C5