OI_EC2-XC645CX_A1_A2L_A3_EN_Rev01_866933.docx EC2-XC645CX 35/54
Limitation of DGS compressor capacity by parameters PM and PMA
The capacity of the DGS compressor can be limited by the PM and PMA parameters, as shown
in the following diagram.
The capacity of the DGS compressor is limited by the PM and PMA parameters.
PM In percentage, it sets the minimum capacity of the DGS activation during a period tdS. For
instance, with tdS = 20 s and PM = 20, the minimum activation of the DGS is 4 s.
NOTE: For digital scroll (dGty = SCrL) the minimum allowed value of PM is 10
For digital stream (dGty = StrM) the minimum allowed value of PM is 0
NOTE: For a proper functioning of the DGS, it’s recommended a minimum activation time
of 2 seconds.
PMA It limits the percentage of the DGS activation during a tdS period according to the
formula: ((Pbd * PMA) / 100) * tdS.