Commissioning 73/104
RE 92076-01-B/10.2017, A4... with HS5E pilot control valve/Series 3x,
Bosch Rexroth AG
8.1.7.6 Setting the pressure controller parameters
The pump controller in the cascade structure consists of a pressure controller with
a lower-level swivel angle controller. The settings of the swivel angle controller are
mainly dependent on the pump size and you do not normally need to set them on
a plant-specific basis. This means that it is generally enough to adapt the controller
parameters in the pressure controller.
Below, we will give you information about setting the individual parameters:
Fig. 25: Damped oscillation
Step
Behavior/result
Measure
1
Overshoots
(damped oscillation)
Check the value of the dead volume (P-0-2813) and correct
it if necessary.
2
Overshoots
(damped oscillation)
Increase feedback of integrator (P-0-2812) to reduce initial
overshoots
3
Actual pressure value
still overshooting
Reduce P-gain (P-0-2809); if necessary, increase D
component
Pr
es
sur
e
Time
Pressure command value
Actual pr
es
sur
e v
alue
Damped oscillation
