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PS 1 – LCD 
 
 

 

 

 

www.lesa.de 

– the fastest way to get in touch!

          

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6.7 

External level sensor 4 – 20 mA 

 

 

“4 - 20 mA Interface“ 

needs to be selected under “level control” in the menu. An external sensor

 

dual   conductor system 4 – 20 mA may connected to terminals 34 (-) and 35 (+) 

 

 

The sensor is supplied with a stabilized DC voltage of approximately 20 Volts. At delivery the

 

effective range of the level sensor is set so it matches the effective range of the internal 

 

pressure sensor. If connecting a level sensor with a different effective range the according setting 

 

needs to be changed in the menu (compare to 4.2). The output is active meaning the control unit 

 

supplies the sensor with power. 

 

If used in the Ex-zone according regulations need to be obeyed.  

 

6.8       Analog Outlets 

 

 

Analog outlets are supposed to be used for the connection to control systems.  

 

Signals change proportionally to the level.  

 

 

0 -10 V       = Terminal 36 (+) and 37 (-)  (load max. of 20 mA) 

 

4 – 20 mA  = Terminal 38 (+) and 39 (-)  (resistance max. 250 Ohm)

 

 

 

The length for the cable used for analog outlets should not exceed 1.50m  

 

6.9 

Network-independent alarm:  

 

(Only with the standard version) 

 

 

This function is omitted with the optional versions with 2 sensors, motor circuit breaker or main 

 

switch. With the use of a rechargeable battery a network-independent alarm signal can be sounded 

 

in the event of a power failure. The alarm issued is a constant acoustic signal. 

 

 

Ensure correct polarity when inserting the rechargeable battery!  

 

 

In order to ensure faultless functionality, the rechargeable battery must be fully charged before 

 

insertion, or charged for 24h in the switchgear. 

 

 

Attention! 

 

Never

 use non-rechargeable batteries. 

 

The following rechargeable batteries are approved for use: 

 

 

 

 

 

 

 

Nickel-metal hydride rechargeable battery 

(NiMH)

 

 

 

 

 

 

 

 

Nickel-cadmium rechargeable battery

 (NiCd)

 

 

7.0  Trial phase without pump  

 

7.1 

In order to test the control unit without pumps the following needs to be considered  

 

 

-  It is sufficient to connect N1 and L1  

 

-  Unless the motor current protection is set to 0 A, the message “

L pump off” 

will appear 

 

 

-  Terminals 21 / 22 need to be bridged, otherwise the message 

“Thermal Fault 2”

 will appear.  

 

-  Thermal fault 1 need to be deactivated in the settings menu, otherwise the message  

 

   

“Thermal Fault 1”

 will appear. 

 

 

 

 

 

Содержание PS1.LCD

Страница 1: ...ons Optional auch mit Hauptschalter oder externem Motorschutzschalter erhältlich Auch komplett fertig montiert Freiluftsäule FS PS1 LCDK Operating Manual LESA Messtechnik Hegholt 59 22179 Hamburg Phone 49 40 641 00 41 Fax 49 40 641 18 36 www lesa de ...

Страница 2: ...es on configuring the parameters 4 1 Table of possible settings 4 2 Supplements to the individual items in the configuration menu 5 0 Error reports in the display potential faults assistance 5 1 Table of possible fault messages 5 2 The settings in the menu cannot be changed 6 0 Installation pneumatic and electrical connection and connection of 3 and 1 motors 6 1 Installation 6 2 Hose attachment 6 ...

Страница 3: ...he personnel for installing initiating and maintaining the control unit has to hold according qualifications for this work 1 3 Safety information for the operator The existing safety rules and risk management plans and local energy supply companies should be followed When opening the unit Taking the safety screen or a cover off or when working at the pump the power to the control unit needs to be ...

Страница 4: ...different parts may waive manufacturer s liability for possible consequences 1 7 Prohibited operations The safety of operation of the delivered product can only be granted when the product is used appropriately according to paragraph 1 1 of the operating manual The limiting values given in technical values have to be adhered to in any case 1 8 Transport and storage The control unit needs to be sto...

Страница 5: ...oltage free and non isolated 230V High water alarm Memory amount of pump activations Operating hour meter Amperemeter High stability Simple operation Atex Mode Service Mode When running in manual mode the pump shuts down automatically after 2 minutes Determination of level is achieved alternatively through internal pressure converter external 4 20 mA Level sensor or floating switch Select effectiv...

Страница 6: ...umber of pump activations and motor current can be checked Additionally Anzeige the settings are adjusted with the digital potentiometer If the turning knob has not been activated for more than 20 seconds the display will return to the initial setting Compare to 3 1 Settings Button By pressing the button the malfunctions Overload Pump Off and Thermal Fault 2 will be Auswahl confirmed after the cau...

Страница 7: ...irst line the level will be displayed at all times In the lower lines hours of operation are displayed as long as the pump has not been activated If the pump is operating the motor current will be displayed In case any malfunctions have occurred they will appear alternately in the lower line of the display Automatic background lighting switch off If no further settings are actuated on the device t...

Страница 8: ...e pump has not been activated for 24 hrs it will automatically run for duration of the set time Acoustic alarm Is deactivated Is activated Is activated In case of a malfunction the internal piezo buzzer will sound Intervall Alarm Is deactivated Is activated Is activated The fault information relay will be synchronized Instead of a flashing light it is possible to use a more economic steady burning...

Страница 9: ... The bullet Operation limit can be chosen in the menu In the condition supplied at delivery the value is set to zero This means the function is deactivated If the value is set between 1 60 minutes the pump will be deactivated once it ran for longer than the pre set time without interruption Additionally an alarm will be triggered and an according fault report will appear on the display The pump wi...

Страница 10: ...vated meaning all settings can be adjusted Deactivating the service mode in the menu leads to only being able to check values over the digital potentiometer While the service mode is deactivated no setting with the exception of language can be adjusted Level Control There is a choice whether the control unit is operated by the internal level sensor impact pressure air supply an external level sens...

Страница 11: ...Check pump for mode or high water level High waterswitch Contact for the high water switch has closed Check if pump floating switch are functioning Reverse signals start stop level The settings for start and stop levels interfere Check level settings Reverse signals start flood level The settings for high water alarm and start level interfere Check settings for level Runtime error Pumps run withou...

Страница 12: ... hose connection later on The hose connection needs to have an inside thread G1 8 towards the control unit When exchanging the hose connection it is important to hold the according nut with a 14 mm wrench You need to make sure to use an appropriate sealing agent when inserting the screw connection 6 3 Electric connection power supply and pumps The electric connection needs to be installed by an el...

Страница 13: ... necessary Power supply to the pumps 1 The connection of the pumps occurs on contactor T2 L und T3 N ATTENTION Because measuring the current needs to happen through T2 the motor needs to be connected at this terminal Thermal motor protection contact Warning contact Temp 1 Terminal 20 21 the pump is unlocked automatically after having cooled off Limiting contact Temp 2 Terminal 21 22 The pump is un...

Страница 14: ...0 11 Dry run protection Polarity of the terminals 10 Plus and 11 Minus When connecting a floating switch to terminals 10 11 surfacing of the cutting unit blade wheel from the medium can be prevented Caution The Dry run protection is only active in automatic mode When used in the Ex zone the according regulations need to be obeyed If a special program has been agreed upon it is optional to enable t...

Страница 15: ...tlets should not exceed 1 50m 6 9 Network independent alarm Only with the standard version This function is omitted with the optional versions with 2 sensors motor circuit breaker or main switch With the use of a rechargeable battery a network independent alarm signal can be sounded in the event of a power failure The alarm issued is a constant acoustic signal Ensure correct polarity when insertin...

Страница 16: ...ion Temperature range 20 to 60 C Measurements 170 x 290 x 130 mm W x H x D Measurements with cable connection and air supply Fuse 5 x 20 1AT alarm outlet Power supply for 4 20 mA Level sensor 20V DC cable connections 2 x M25 x 1 5 1 x M16 x 1 5 Hose connection 6 8 mm If desired different hose connections can be delivered Technical Data always remain subject to change 9 0 Norms Applicable EU regula...

Страница 17: ...PS 1 LCD www lesa de the fastest way to get in touch 17 10 0 Annex ...

Страница 18: ...PS 1 LCD www lesa de the fastest way to get in touch 18 Caution When connecting 1 motors the maximum connected load is 2 4 KW ...

Страница 19: ...PS 1 LCD www lesa de the fastest way to get in touch 19 Relay output signal output analog output ...

Страница 20: ...PS 1 LCD www lesa de the fastest way to get in touch 20 Bore pattern ...

Страница 21: ... www lesa de the fastest way to get in touch 21 Note on opening the lid 1 Push the grey side part upwards 2 The lid can now be opened forwards Be loosening both grey side parts the lid can be completely removed ...

Страница 22: ...le Alarmmodule GSM Module Messumformer Fernwirk Pumpsysteme Messglocken Pneumatische Leitung Schaltanlagenbau Automatisierung Fernwirktechnik Freiluftsäulen komplett bestückt mit PS1 LCD PS2 LCD Kompaktschaltschrank LCD2 System Metall GfK Außenschränke Leersäulen EVU Anschlusssäule Verschraubungen für pneumatische Leitung Schwimmschalter Tauchsensoren Ultraschallsensoren Stabsonden Druckschalter A...

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