Uniflair UST500, Инструкция по эксплуатации

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UST500 CONTROL BOARD
06MC0074@00B0100
14/04/2010
41
Compressors (folder PAr/CP)
UST can control installations with 1 refrigeration circuit featuring 1 or 2 compressors.
Each compressor is piloted by a device relay.
The compressors are on or off depending on the temperature control functions set (see Compressor Control - Temperature Control chapter).
Compressor parameters can be viewed and configured in folder CP (see User Interface and Parameters chapters).
The parameters are:
•
CP00, CP01 to define the type and number of compressors in the installation;
•
CP03..CP10 to set timings.
Type of compressors
Parameter CP00 indicates the type of compressor
•
CP00=0 ordinary compressor
•
CP00=1 partialized 2 step
Parameter CP01 indicates the number of compressors in each circuit
•
CP01=1 1 compressor
•
CP01=2 2 compressors
Configuring digital outputs as compressor:
The compressor or compressors, or compressor and its partialization is/are connected to one of the available relay outputs D01…D04, D06 or
to the D05 open collector output, setting the following parameters:
•
CF45…CF50= 1 for compressor 1
•
CF45…CF50= 2 for compressor 2 or partialization
Compressor timings
Safety timings
The switching on and off of compressors must respect safety timings that can be set using the relative parameters as described below:
Minimum time between the switching on of more than one compressor (CP05)
If there are 2 compressors in the installation, the minimum time between the switching on (CP05) and the switching off (CP06) of the two
compressors is observed.
The switch off delay between two compressors is not applied in the event of a compressor shutdown alarm, in which case they are stopped
immediately.
ON-ON timing for more than one compressor
The second compressor will switch on, when requested, after the delay (in seconds) set in parameter CP05 Minimum time between the
switching on of more than one compressor– after the first one has switched on.
Minimum time between the switching on of more than
one compressor
(CP05)