Parker PQDXXA-Z10 - Displacement and Pressure Control Parameters

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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
SENS (Setting of the Sensor monitoring):
ON Sensor monitoring is activated. The Reset has to be done manually. The error will be
shown at the module and in the Monitor view until the reset.
OFF Sensor monitoring is deactivated.
AUTO Sensor monitoring is activated. The module gets automatically reset after the failure or
the defect is corrected. A manual reset is not necessary.
The manual reset is done by switching the ENABLE signal at PIN 8.
The module monitors signals from the displacement sensor as well as from the pressure sensor
accordingtoaspeciedrangeandtheelectriccircuittothevalvemagnets.Signalsoutofthe
speciedrange(pressuresensor<3mA,displacement<1V)oranopenedelectriccircuit(broken
cable detection) are detected as failure. The module will force the pump to dead head. The green
READY LED is flashing. The error category and the error description are shown via the Status
LEDs (please see chapter 4).
The pressure sensor is not monitored at TYPE F and P.
MIN:WQ / MAX:WQ (Setting of the displacement command scaling):
MIN:WQ Setting of the lower limit of the internal displacement command signal.
MAX:WQ Setting of the upper limit of the internal displacement command signal.
MIN:WQ and MAX:WQ can be used to set a minimum displacement respectively a maximum
displacement without changing the command signal resolution 0-10 V.
AIN:WQ (Command signal type – Displacement Control):
The command signal of the displacement control can either be a current signal [C, 4-20mA] or a voltage
signal [V, 0-10V]. Default setting is a voltage signal.
Voltages at PIN 10 are not monitored by the broken cable (SENS) detection.
AQ:UP / AQ:DOWN (Ramp times - displacement control):
AQ:UP Ramp time settings for rising displacement commands in ms.
AQ:DOWN Ramp time settings for dropping displacement commands in ms.
It is recommended to activate ramps to achieve sustainable system stability. Ramps can be acti-
vated with a suitable voltage signal to PIN 5 / RAMP ON.
 Ramptimesinthesoftwarerefertoacommandstepof100%anddenetherampgradient.Ramp
times are proportional to the percentage of the command steps.