Bulletin 5715-482
Installation Manual
Series ED105
Power Amplifier for
Pressure Valves
Parker Hannifin GmbH
Hydraulic Controls Division
Gutenbergstr. 38
41564 Kaarst, Germany
Tel.:
(+) 2131-513-0
Fax:
(+) 2131-513-230
www.parker.com
Copyright 2000, Parker Hannifin GmbH
Contents
Power Amplifier for Pressure Valves
Series ED105
Installation Manual
Note
This document and other information from Parker Hannifin GmbH, its
subsidiaries, sales offices and authorized distributors provide product or
system options for further investigation by users having technical
expertise. Before you select or use any product or system it is important
that you analyse all aspects of your application and review the information
concerning the product or system in the current product catalogue. Due
to the variety of operating conditions and applications for these products
or systems, the user, through his own analysis and testing, is solely
responsible for making the final selection of the products and systems
and assuring that all performance and safety requirements of the
application are met. The products are subject to change by Parker
Hannifin GmbH at any time without notice.
IA ED105 UK A5.PM6.5 RH
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Parker Hannifin GmbH
Hydraulic Controls Division
Power Amplifier for Pressure Valves
Series ED105
Installation Manual
Electronic module for the control of proportional
pressure relief valves. The pressure values and the
changing sequence are determined by externally
applied command signals as well as internal limit
potentiometers. The measurement value (Volts) at
the module is indirectly proportional with the pressure level, which is in turn influenced by the volume
of flow (quantity, viscosity).
Features
Processing and amplification of the externally
supplied positive commands into output signals
for the control solenoid.
Can be combined with EZ150 or external programmable control.
MIN/MAX-limiters for matching the working
range to the full command range.
Pulsed low-loss amplifier power stage with constant current control.
Dither generator with applied frequency to improve static characteristics.
Diagnosis by means of diagnostic sockets as
well as LEDs for indicating working conditions.
Characteristics
Power supply
Power required
Set value voltage
Reference outputs
Solenoid output current max.
Ramps
Ambient temperature
Connection
Shielded cable connections
Fuse
filtered: 22...38V, unfiltered: 18...26V
max. 40VA
0...+10VDC
+10V / max. 10mA
1.3A
not available
0...+70C
31pole male connector, DIN 41617
Supply connections and valve: AWG16; Commands: AWG20
2A medium lag, DIN 41571
Ordering Code
ED
105
00
Module
Type
Electronic Module
Pressure Valves
Design
Series
for Valves
Code
Modulausfhr.
DSA
DWU
DWE
105
Amplifier for
command signal
input, Min/Maxlimiting
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Parker Hannifin GmbH
Hydraulic Controls Division
Power Amplifier for Pressure Valves
Series ED105
Installation Manual
EMC
EN 50081-2
EN 50082-2
EN 55011
ENV 50140
EN 61000-4-4
ENV 50204
EN 61000-4-5
EN 61000-4-2
EN 61000-4-6
Block Diagram
Connector (Elevation B)
14
16
18
Input command voltage 0...+10 VDC
Output +10 V reference
Input 24 VDC supply
26
Output control solenoid
11
Reference potential 0V supply
25
Output control solenoid
31
Reference potential 0V set value
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Power Amplifier for Pressure Valves
Series ED105
Installation Manual
Operating and Diagnostic Elements
(Elevation A)
Notes
MIN-limiting for matching lowest pressure
Turn off the electrical power
to this board whenever the
hydraulic supply to the valve
is not on.
MAX-limiter for highest pressure
Always turn off the power to
this board before removing
it from the card holder.
Only potential-free measuring equipment to be used.
Red socket for current diagnostic
Red LED for:
indicating function of control solenoid
(B not used)
Black socket for current diagnostic
Red grip strip with reference
information for measured
values.
Dimensions
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Power Amplifier for Pressure Valves
Series ED105
Installation Manual
INSTALLATION GUIDE TO ELECTRONIC MODULES
TO PROVISION OF ELECTROMAGNETIC COMPATIBILITY.
Power Supply
The utilized power supply has to comply with the EMC-standards (CE-sign, certificate of conformity).
Parker is offering the following power supplies:
EX00-N01
EX00-N04
EX00-N08
( 2.5 Amp.)
( 5.0 Amp.)
(10.0 Amp.)
Relais and solenoids operating from the same supply circuit than the valve electronics has to be fitted
by surge protection elements.
Wiring Cable
The wires between the installation site of the module and the peripheral units, as power supply, valve
solenoids, command signal source has to be shielded. The following wire sizes must be reached: power
supply AWG 16, other connections AWG 20. The capacity should not exceed a value of approx. 130 pF/
m (wire/wire). The maximum cable length is 50m. No power current lines may be placed within the wired
shielded cables to the electronic module. The cable shield has to be connected to ground at both ends
(see also chapter Grounding). Please be aware of ground loops.
Connectors
The connection of the position transducer needs a sensor connector 4pin+E featuring metal case and
integrated cable shield coupling. Parker can provide suitable connectors:
5004108
(Connector 4pin+E)
The connectors has to be installed according the connection diagram, the cable shield has to be tied
on the whole periphery to the provided coupling clamp.
Installation
The module has to be mounted within a conductive, shielded enclosure. Usable is i.e. an EMC-approved
control cabinet. A perfect grounding of the enclosure is mandatory (see also chapter "Grounding")
Grounding
The mounting plate of the valve has to be connected to the grounded metal machine frame. The cable
shields must be tied to ground at the control cabinet. A low-ohmic potential compensation wire has to
be provided between the control cabinet and the machine frame (cable wire >AWG 7 cross section) to
prevent ground loops.
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