5
Parker Hannifin Manufacturing Germany GmbH & Co. KG
Pump & Motor Division Europe
Chemnitz, Germany
Electro hydraulic proportional controls version 45 for
axial piston pumps, PV series
Bulletin MSG30-3254-INST/UK
Installation and setup manual
Circuit diagram
Figure 4: Circuit diagram for electronic module PQDXXA-Z10
diagnosis, displacement, 0...+10 V
ready, 24 V nominal
status I, 24 V nominal
diagnosis, pressure, 0...+10 V
10 V reference output
solenoid p-valve
(pressure pilot valve)
solenoid B Q-valve
(displacement control valve)
solenoid A Q-valve
(displacement control valve)
power supply
power supply
18...30 V
0
18...30 V
0
0 V
9
6
29
31
13
14
11
5
7
8
10
3
17
19
12
15
16
1
2
12 V
5 V
DC
DC
PWM
18
20
21
23
4
22
24
enable ramp, 24 V nominal
enable p/Q-control, 24 V nominal
enable power amplifier, 24 V nom.
connect to terminal 11, 0 V
displacement transducer
LVDT = 0...+10 V or CIP = 4...20 mA
pressure command, (p
cmd
) 0... +10 V
or 4...20 mA
horse power 0... +10 V
command (L
cmd
) 0
pressure transducer 0... +10 V
or 4...20 mA
displacement cmd. (Q
cmd
) 0... +10 V
or 4...20 mA
µC
4. Electronic module PQDXXA-Z10 –
Function
To control the proportional solenoid the elec-
tronic module PQDXXA-Z10 is offered. This
module is able to control all PV sizes and all
control option.
Figure 3 shows this module from the outside,
figure 4 the electronic control circuit.
For further information please see Bulletin
MSG30-3255-INST/UK
Figure 3: Electronic module PQDXXA-Z10
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