HYDAC EDS 8000 User Manual
Electronic Pressure Switch
EDS 8000
(Menu navigation according to VDMA)
User Manual
(Translation of original instructions)
Status 09.09.2009 HYDAC ELECTRONIC GMBH Part No. 669820
User manual EDS 8000 US Page 2
Table of Contents
1 SAFETY INFORMATION...................................................................3
2 FUNCTIONS OF THE EDS 8000.......................................................3
3 INSTALLATION.................................................................................3
4 CONTROLS OF THE EDS 8000 .......................................................4
5 DIGITAL DISPLAY............................................................................4
6 OUTPUT FUNCTION.........................................................................7
6.1 Switching Outputs ...........................................................................7
6.1.1 Switch point setting (SP)....................................................................7
6.1.2 Window function setting (Fno / Fnc)...................................................7
6.2 Setting ranges for the switching outputs ......................................8
7 MENU NAVIGATION.........................................................................9
7.1 Main menu........................................................................................9
7.2 Extended functions........................................................................10
8 ERROR MESSAGE.........................................................................11
9 PIN ASSIGNMENT..........................................................................11
10 TECHNICAL SPECIFICATIONS .....................................................12
11 ORDERING DETAILS .....................................................................13
12 ACCESSORIES...............................................................................14
12.1 For electrical connection...............................................................14
12.2 For mechanical connection...........................................................14
13 INSTRUMENT DIMENSIONS..........................................................15
Status 09.09.2009 HYDAC ELECTRONIC GMBH Part No. 669820
User manual EDS 8000 US Page 3
1 Safety Information
Before commissioning,
- check the instrument and any accessories supplied
- read the operating instructions
- ensure that the instrument is suitable for your application.
If the instrument is not handled correctly, or if the operating instructions and specifications
are not adhered to, damage to property or personal injury can result.
2 Functions of the EDS 8000
Depending on which model you have, the instrument offers the following functions:
• Display of the actual pressure in psi, Mpa or bar
• Switching of the switch outputs in accordance with the pressure and the pre-set
switching parameters
• Menu navigation in accordance with the VDMA standard 24574-1
• Coloured LED backlight indicates the switching status
3 Installation
The EDS 8000 can be mounted directly via the pressure connection or indirectly
on a hydraulic block using a hose or a minimess line
(for torque value, see Chapter 9 - Technical specifications).
For optimum alignment, we recommend connecting the EDS 8000 mechanically using a
rotating adapter (for Mechanical Accessories see Chapter 12.2).
The electrical connection must be carried out by a qualified electrician according to the
relevant regulations of the country concerned (VDE 0100 in Germany). The housing of
the pressure switch must be properly earthed. When fitting into a hydraulic block, it is
sufficient if the block is earthed via the hydraulic system. When installing with a minimess
hose, the housing must be earthed separately (e.g. with a screened cable).
CAUTION:
The EDS 8000 must be fitted using a suitable open-end wrench
(across flats 27) on the hexagon nut of the pressure connection.
Do not install the EDS 8000 by gripping the housing, as this would damage the
housing or the entire instrument.
Additional installation suggestions which, from experience, reduce the effect of
electromagnetic interference:
• Make line connections as short as possible
• Use screened cabling (e.g. LIYCY 4 x 0.5 mm²)
• The cable screening must be fitted by qualified personnel subject to the ambient
conditions and with the aim of suppressing interference
• Keep the unit well away from the electrical supply lines of power equipment, as well
as from any electrical or electronic equipment causing interference
Status 09.09.2009 HYDAC ELECTRONIC GMBH Part No. 669820
User manual EDS 8000 US Page 4
4 Controls of the EDS 8000
2 keys (↓↑ and E) for adjusting the switch points, switchback points and additional functions
4-digit
digital display
LED backlight
to indicate switch points
(red = active / green = inactive)
E
Use the keys to select the next menu point, or alternatively to adjust the values.
• To scroll through the menu
• To increase the value
• Hold the key down to fast-scroll
• To select the menu point
E
• To confirm value
through the parameter values
5 Digital display
Once the power supply has been switched on, the device briefly flashes "EdS", and then
begins to show the actual pressure.
To check the unit of measurement being used for the pressure indication, press the righthand key. Depending on the setting, bar, psi or MPa will be shown.
The backlight changes colour according to the settings of the switch outputs and their
switch points, i.e. when the switch output is inactive or low-level, the relevant backlight is
"green", when the switch output is active or high-level, the relevant backlight is "red".
Backlight Backlight
for switching output 1 for switching output 2
Status 09.09.2009 HYDAC ELECTRONIC GMBH Part No. 669820
User manual EDS 8000 US Page 5
Reading the digital display
Description
Switch point, output 1
Switch-back point, output 1
Switch point, output 2
Switch-back point, output 2
Pressure window upper value, output 1
Pressure window lower value, output 1
Pressure window upper value, output 2
Pressure window lower value, output 2
Extended functions
Reset
Switch delay time, output 1
Switch delay time, output 2
Switch-back delay time, output 1
Switch-back delay time, output 2
Representation on
7-segment display
sp1
rp1
sp2
rp2
fk1
fl1
fk2
fl2
ef
res
ds1
ds2
dr1
dr2
ASCII representation
SP1
RP1
SP2
RP2
FH1
FL1
FH2
FL2
EF
RES
dS1
dS2
dR1
dR2
Output 1
Output 2
Normally open when hysteresis
function is active
Normally open when window function
is active
Normally closed when hysteresis
function is active
Normally closed when window function
is active
Unit conversion
Units in bar
Units in MPa
Units in psi
Maximum value
Error indication
Delete
Extended functions
ov1
ov2
kno
fno
knc
fnc
uni
bar
mpa
psi
ki
err
--ef
Ou1
Ou2
HNO
FNO
HNC
FNC
Uni
Bar
MPa
psi
HI
ERR
---
EF
Yes
No
Version
Status 09.09.2009 HYDAC ELECTRONIC GMBH Part No. 669820
yes
no
Uer
Yes
No
Ver
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