HYDAC EDS 601 User Manual
Elektronischer Druckschalter
Electronic Pressure Switch
Manocontacteur électronique
EDS 601
Benutzerhandbuch
Operating Manual
Manuel d'utilisation
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CONTENTS
1. General
1.1. Features
1.2. Installation options
1.3. Settings
1.4. Warranty
1.5. Queries and problems
2. Installation
2.1. Installed as pressure gauge
2.2. Installed as front panel measuring unit
2.3. Making the electrical connection
2.4. Supply voltage
2.5. Dimensions
2.6. Pin connections
2.7. Connection examples analogue output
3. Operation
3.1. Overview
3.2. Setting the switching points
3.3. Basic settings
3.4. Altering the measuring range
3.5. Altering the calibration
3.6. Disabling the programming
4. Error messages
4.1. Operating errors
4.2. Data errors
4.3. Invalid operating conditions
5. Technical data
6. Appendix A: Menu hierarchy
7. Appendix B: Parameter form sheet
8. Appendix C: Application example
General
1.
Features
1.1.
l built-in pressure sensor with steel membrane
l 4-digit, 7-segment display to show the current pressure
l analogue output, switchable 0..10 V or 4..20 mA as current source
l two individually adjustable switching relays with change-over contacts
1.2.
Installation options
l directly into the system using a G ¼ threaded connection,
or via a mechanical adapter into a G ½ pressure gauge connection
to DIN 16288
l as a front panel unit where the connection is made via a hydraulic hose
Settings
1.3.
Switching point settings:
l Switching point and switching hysteresis relay 1 and relay 2
Basic settings:
l Switching direction relay 1 and relay 2
l Switching delay relay 1 and relay 2
l Switch-back delay relay 1 and relay 2
l Measured value filter on the display value
l Standard display value (current pressure, switching point or peak value)
l Analogue output signal (0..10 V or 4..20 mA)
Measuring range settings:
l Upper and lower measuring range limit
Calibration options:
l Re-calibration of the internal sensor for both zero and final value settings
l Re-calibration of the signal range of the analogue output
Warranty
1.4.
Both the components of the EDS 601 and the complete unit are subject to
stringent quality controls. Each EDS 601 is individually calibrated and subjected
to a final test. In this way we can guarantee that the unit is fault-free on despatch
and conforms to the given specifications. However, if there is cause for
complaint, please return the pressure switch to us outlining the fault.
Interference by anybody other than Hydac personnel will invalidate all warranty
claims.
Queries and problems
1.5.
If you have any queries regarding technical details or the suitability of the
pressure switch for your application, please contact our sales/technical
department. The EDS 601 pressure switches are maintenance-free and should
operate perfectly when used according to the specifications
(see Technical Data). If faults do nonetheless arise, please contact the
Electronics Servicenter.
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FLUPAC LIMITED
Technical sales
Tel.: 01608 / 81 12 11
Fax: 01608 / 81 12 59
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Installation
2.
Installed as pressure gauge
2.1.
The EDS 601 can be installed directly into the hydraulic system via the G ¼
threaded connection or an adapter. Depending on the type of connection, the
sealing should be to DIN 3852 or DIN 16288. The torque should be within the
range 20..30 Nm. (Where adapted for G½: 45..50 Nm).
Installed as front panel measuring unit
2.2.
The unit is installed in a front panel cut-out of 68.5 x 68.5 mm. The unit is
secured with clamps from the mounting set, which can be ordered separately.
For mechanical de-coupling the hydraulic connection must be via a standard
small bore instrument hose. The sealing can be by means of an O-ring or a
metallic soft seal to DIN 3852. The torque should be within the range 20..30 Nm.
Note: When installed as a front panel unit a rigid hydraulic connection
G
Making the electrical connection
2.3.
The electrical connection should be carried out by a qualified electrician
according to the relevant regulations of the country concerned (VDE 0100 in
Germany).
The electronic pressure switches EDS 601 carry the mark. A declaration of
conformity is available on request.
The EMC-standards EN 50081-1, EN 50081-2, EN 50082-1 and EN 50082-2
apply.
The requirements of the standards are fulfilled only if the pressure switch
housing is earthed correctly by qualified personnel. If the pressure switch is
mounted inline, it is sufficient if the pipe is earthed via the hydraulic system. In
the case of hose-mounting, the housing must be earthed separately via the PE
connection of the 4-pole plug.
Additional assembly notes which, from experience, reduce the effect of
electromagnetic interference:
l Make line connections as short as possible.
l Use screened lines (e.g. LIYCY 4 x 0.5 mm
l The cable screening must be fitted by qualified personnel subject to the
l Direct proximity to connecting lines of user units or electrical or electronic
must not be used.
2
).
ambient conditions and with the aim of suppressing interference.
units causing interference must be avoided as far as possible.
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2.4.
Supply voltage
The EDS 601 switches on automatically as soon as sufficient supply voltage is
available. If, however, the supply voltage afterwards falls so low that reliable
operation can no longer be guaranteed, "- - - - appears in the display and the
relays and the analogue output are switched off. As soon as sufficient voltage is
once more available the unit operates again automatically. If the voltage sinks so
low that operation is no longer possible at all, the unit switches itself off
completely.
Dimensions
2.5.
164
98,7
83,5
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2.6.
72
SP1 SP2
Prog
72
Pin connections
PE
1
2
3
67
G1/4"
PE
1
2
3
4
Voltage supply Relay outputs
Plug to DIN 43650 / IEC 4400 plug to DIN 43651
Pin 1: 24V Pin 1: relay 1 N/C contact
Pin 2: 0V Pin 2: relay 1 N/O contact
Pin 3: analogue output Pin 3: relay 1 common supply
Pin 4: relay 2 N/C contact
Pin 5: relay 2 N/O contact
Pin 6: relay 2 common supply
2.7.
Connection examples analogue output
EDS 601
1
24 V
3
Signal
R
L
2
0 V
EDS 601
1
3
2
Current output: Voltage output:
max. load resistance 400 W min. load resistance 2 kW
100,5
6
5
24 V
Signal
V
0 V
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