Parker PQDXXA-Z10 - Page 36

36
Digital Pump Control Module
Series PQDXXA-Z10
Installation and Setup Manual
Bulletin HY30-3255-INST/UK
Parker Hannifin Manufacturing Germany GmbH & Co. KG
Pump&MotorDivisionEurope
Chemnitz, Germany
Typical Step Responses:
Actual value nears only slow to the command value:
 Increase P action, if this improves, decrease I, iterate possibly.
Actual value nears only slow and with small oscillations to the command value:
 Increase P action, if this improves, decrease D action, iterate possibly.
Actual value nears only without overshoot to the actual value:
 Increase P action to get a faster response in the actual value.
Actual value nears with small overshoots to the command value:
 Optimal system behaviour
 If no overshoots are not allowed, reduce P action
Actual value nears with fast to the command value but overshoots are to big
 Decrease P action, if this improves, increase I action, iterate possibly.