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PQ-132-U
5.4 Input signal adaptation
5.4.1 SYS_RANGE (System pressure)
Command
Parameters
Unit
Group
SYS_RANGE X
x= 10… 1000
bar
STD
This command defines the pressure, which corresponds to 100 % of the input signal. If the demand is set
incorrectly, this leads to incorrect system settings, and the dependent parameters cannot be calculated
correctly.
5.4.2 ARATIO (Cylinder area ratio)
Command
Parameters
Unit
Group
ARATIO X
x= 200… 5000
-
EXP
In order to limit the output force in either direction correctly the parameter ARATIO provides the ratio of the two
surfaces of the cylinders piston.
A divisor of 1000 for area B to set base.
Accordingly, a corresponding entry of the value A (ARATIO) of 1000 a ratio of A / B = 1000/1000
For example: surface ratio A/B = 2.08:
ARATIO has to be set on 2080
surface ratio A/B = 0,5:
ARATIO has to be set on 500
surface ratio A/B = 1:
ARATIO has to be set on 1000
This parameter is used to calculate a pseudo differential pressure which, multiplied by the larger of the two
surfaces, yields the resulting force. This value becomes negative for forces in direction "B".
5.4.3 PRESET:Q (Internal preset value)
Command
Parameters
Unit
Group
PRESET:Q
0… 10000
0,01%
STD
This parameter is entered in 0,01%.
Alternative to the analog input the flow can be specified as a parameter
. When the analogue input is switched
off with
SIGNAL: Q = OFF, the configured value in PRESET: Q gets active.
