Parker PQDXXA-Z10 - Analog Outputs; Digital Outputs

16
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
Analog Outputs
Diagnosis displacement
PIN 15 provides an analog readout proportional for
the actual pump displacement. The signal is +10 V
at full stroke and 0,15 V at dead head and stand-by
pressure,iftheLVDTadjustmentiscorrectandthe
programming of the module matches the actual
pump size and displacement. The maximum current
load to this output is 10 mA.
Diagnosis pressure
PIN 16 provides an analog readout for the actual
pressure, when a pressure transducer is installed
and the module is programmed. The signal is +10
V at nominal pressure (350 bar) and 0 V at 0 bar
pump outlet pressure. The maximum current load
to this output is 10 mA.
Reference voltage output
PIN 12 provides a stabilized +10 V reference signal,
which can be used to drive potentiometers for the
analog input signals. The maximum current load
for the reference output is 10 mA.
Digital outputs
Ready
The Ready output (PIN 1) gives information on
the module being ready to operate. A signal larger
than +10 V signals a logic 1, a signal lower than
+2 V signals a logic 0. PIN 1 has a logic 1 signal,
when all necessary sensors are attached and intact
and the Enable signal is set (logic 1 at PIN 5). The
control loop is closed under these conditions. The
Ready LED (green) is lighted.
When a sensor fault occurs (cable broken, no
sensor connected, signal out of range, or wrong
pump size selected) a logic 0 is sent. The Ready
LED starts flashing.
Status
The Status I output (PIN 2) delivers via switch
sequence information about the error category.
Memory, command, sensor and solenoid errors can
be evaluated. A signal higher than +10 V signals
a logic 1, a signal lower than +2 V signals a logic
0. The signals at PIN 2 are also shown as flash
sequence at LED Status I.
In addition the LED Status II gives information
about the error description. The switch sequence
at PIN 2 and the flash sequence at LED Status I
for the error category and the flash sequence at
LED-Status II for the error description are described
in the picture shown below.
The display of error category and error description
easestheelderrordiagnosis.
The activity of the horse power control is shown
via a static signal at the Status I and Status II
LED.Ifthetotalinputpoweriswithinthespecied
corner power, both Status LEDs are off. Status I
is a logic 0. During fast control actions both status
LEDs will flicker.