gefran ADP200

ADP200 Application PID-IMM User Manual Pag. 56 of 80
5.6 Saturation Limit
Saturation limits fix maximum output capability of application’s control loops in pressure control.
Figure 29: Saturation Limit
Relevant parameters can be found in SAT_LIMIT menu:
Ipa
Parameter Name
Unit
Type
Default
Min
Max
11118 High Sat Pr Control rpm FLOAT 3000 0.00 4000.00
11120 Low Sat Pr Control rpm FLOAT -30 -1000.00 0.00
11122 NegSpeedLowP bar FLOAT 20.0 0.00 1000.00
11124 NegSpeedHighP bar FLOAT 30.00 0.00 1000.00
Ipa 11118 HighSatPrControl:
High Sat(uration) Pr(essure) control set to rated pump speed or less.
This is the maximum speed that will be set when pressure control is active.
Ipa 11120 LowSatPrControl:
Low Sat(uration) Pr(essure) control set minimum pump set-point speed.
Limited negative speed is generally allowed only if pressure is in enable state of the hysteresis
specified from parameters Neg(ative)SpeedHighPr(essure) (higher/activate threshold) and
Neg(ative) Speed Low Pr(essure) (lower/disable threshold).
If the hysteresis is in disable state the minimum speed allowed is 0 Rpm. (see. Figure)
Ipa 11122 NegSpeedLowPr:
Neg(ative)SpeedLowPr(essure) set the level of pressure that disable the hysteresis for low saturation
pressure loop speed set point.
Ipa 11124 NegSpeedHighPr:
Neg(ative)SpeedHighPr(essure)set the level of pressure that enable the hysteresis for low saturation
pressure loop speed set point.