Operating instructions
cod. 1592011000
1592011000 XC706M GB 31-08-2001
rel. 1.0
Pa. 9 / 23
If the “err” message will be displayed it means that the programming failed. In this case turn the
unit off and then on if you want to restart the download again or remove the “Hot key” to abort
the operation.
4.2 UPLOAD (From the instrument to the “Hot key”)
1.
When the unit is ON, insert the “Hot key” and push UP key of compressor section; the
"uPL" message appears and the values of parameters will memorised on the hot key.
2.
At the end of the data transfer phase the instrument displays the following messages:
“end “ for right programming.
“err” for failed programming. In this case push “SET” key if you want to restart the
programming again or remove the not programmed “Hot key”.
3.
Remove the “Hot Key”.
5. List of parameters
5.1 Configuration parameters - compressor section
WARNING: after having modified one of these parameters the controller automatically
switches off and on to load the new map.
5.1.1
Plant dimensioning and type of regulation.
By means of these parameters the plant can be dimensioned according to the number and type
of compressors and the number of steps for each one.
CpnU:
Compressor Number: number of compressor present in the plant. (1-6).
CtyP: Compressor type: it selects if the compressor have the same power (homogeneous) or
not.
0 = compressor with different capacities: in this case the regulation is neutral zone.
1 = homogeneous: the regulation can be neutral zone or proportional band.
CPst:
Compressor Steps: present only if CtyP=1: compressor homogeneous (1-6).
It is equal to the numbers of compressor valves plus one. NOTE: with 2 compressors
(CPnU=2), each with 3 steps (CPSt=3), the relays have to be connected as below:
44 45 46 47 4 8 49 5 0 51 5 2 53 5 4 55
5HOD\
$
5HOD\
$
5HOD\
$
5HOD\
$
5HOD\
$
5HOD\
$
9DOYH
FRPS
9DOYH
FRPS
&RPS
9DOYH
FRPS
9DOYH
FRPS
&RPS
PC1 ..PC6 Power of compressor 1...6: for setting the power of single compressors. Available
only if CtyP=0. The power is identified by a value (range 1÷255) proportional to the
capacity of single compressor.
