Danfoss ADAP-KOOL Drive User Manual

28-71 Day/ Night Bus Indicator
Range: Function:
0* [0 - 1] This parameter is written by the LON Bus periodically to indicate day or night. This is a read only
parameter on LCP. 1 indicates night and 0 indicates day.
28-72 Enable Day/ Night via Bus
Range: Function:
0* [0 - 1] This parameter enables or disables usage of Day/Night Bus Indicator (28-71). If this parameter is
set to 0 [Disable] then the value in par. “Day/Night Bus Indicator” (28-71) is discarded in day-night
control. If this parameter is set to 1 [Enable] then the value in par. 28-71,
Day/Night Bus Indica-
tor
, is considered in day-night control. If the day night signal is not received via bus the day/night
indication can be programmed via digital inputs.
28-73 Night Setback
Range: Function:
0* [0 – (par.3-03 – par. 3-02) ] This parameter defines the value by which the compressor setpoint should be increased, during
night.
28-74 Night Speed Drop
Range: Function:
0* [0 – (par.4-13 – par.4-11) ] This parameter defines the value by which the maximum speed limit of the condenser fans should
be lowered during night. The range of the value is from 0 to difference of par. 4-13
Motor Speed
High Limit [RPM]
and par. 4-11 Motor Speed Low Limit [RPM] .
28-75 Night Speed Drop Override
Range: Function:
0* [-1000000.000 – 1000000.000 ] This parameter defines a limit on the condenser feedback (pressure) when night action is active. If
condenser feedback is more than the value set in this parameter, then night action is deactivated
(if already active) and day action is activated. A value of zero in this parameter means that night
speed drop will be active independent of condenser pressure.
3.21.3 28-8* P0 Optimization
The AKD102 supports the ADAP-KOOL P0 Optimisation feature. This enables automatic adaptation of the suction pressure to optimally match the system’s
actual load.
To enable this function par. 20-25
Setpoint Type must be set to “Floating”. The drive now accepts setpoint changes from the LON bus. The drive assures
that the set minimum and maximum limits for the feedback suction pressure are observed.
28-81 dP0 Offset
Range: Function:
-999999.9 -
999999.9
[] The value of the parameter is added to the setpoint provided par. 20-25 Setpoint Type is program-
med to “Floating”. The unit of the parameter is shown as Kelvin indicating that the feedback is
assumed to be a pressure converted to an equivalent temperature via the pressure-to-temperature
conversion functions selectable in par. 20-01, 20-03 or 20-06.
28-82 P0
Range: Function:
-999999.99
9 -
999999.999
[] The feedback pressure measured on the analogue inputs, converted to an equivalent temperature.
3 Parameter Description ADAP-KOOL
®
Drive Programming Guide
220 MG.11.N1.02 - VLT
®
is a registered Danfoss trademark
3

Danfoss ADAP-KOOL Drive Specifications

General

Brand	Danfoss
Model	ADAP-KOOL Drive
Category	DC Drives
Language	English