Override; Selecting Sensor Type And Where The Signal Must Be Connected - Danfoss AK-PC 530 User Manual

Override

The controller contains a number of functions that can be used
together with the override function in the master gateway.
They can therefore only be used in combination with data
communication.
Function via data communication
Stop of injection when the compressor is
stopped
Night setback
Suction pressure optimisation
The system unit registers the refrigeration point which handles the largest capacity (requires the
lowest suction pressure). The parameter may be logged for use in a service situation.

Selecting sensor type and where the signal must be connected

Overview for setting o06
Regulation
Pack/chiller
with frost protection
+ condenser
Chiller
without frost protection
+ condenser
Pack/chiller
with frost protection
+ dry cooler
Chiller
without frost protection
+ dry cooler
*) Supplies signal to frost protection.
**) Will supply signal to floating condenser regulation if it is defined in r33 (r33 = 2 or 4).
***) With brine cooling where there should also be frost protection, connect the regulation sensor to either Sc4 or Saux (defined in o81).
AK-PC 530
Functions to be used in the system units
override function
AKC ON
Day/night control and time schedule
P0 optimisation
P0-input Pc-input
AKS 32R* AKS 32R
Pt1000
AKS 32R
PTC1000
Pt1000
AKS 32R*
PTC1000
Pt1000 Pt1000
PTC1000 PTC1000
Manual RS8EJ302 © Danfoss 05-2010
Selection of parameter in AK-PC 530
084B8007 Sw.1.3x
- - - MC Inject ON
r27 NightSetback
Select controller address
(The parameters are found automatically and
do not become visible).
- - - MLC
Sc3** Sc4
Pt1000 Pt1000***
PTC1000 PTC1000***
Pt1000 Pt1000
PTC1000 PTC1000
Pt1000 Pt1000***
PTC1000 PTC1000***
Pt1000 Pt1000
PTC1000 PTC1000
Saux Setting in o06
0
Pt1000***
1
PTC1000***
2
Pt1000
PTC1000 3
Pt1000*** 4
5
PTC1000***
Pt1000 6
7
PTC1000
21