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5.1.1 

Menu items factory settings, data import and 
export 

5.2 

Supplements to the individual items in the 

configuration menu 

5.2.1

 

Start Delay

The  delay  configured  will  only  be  active  after  a  loss  in  power 
(staggered  start  in  projects).  For  each  further  start,  the  pumps will 
immediately turn on when they are triggered via the level. 

5.2.2

 

Lowest level configurations (On/Off) 

If a switch-on point lower than 5 cm is selected, then the software will 
automatically use 5 cm as the switch-on point. If a switch-off point 
lower than 3 cm is selected, then the software will automatically use 

3 cm  as  the  switch-off  point.  This  also  applies  to  starting  overrun 
time,  which  will  then  start  at  3  cm.  This  is  necessary  for  the  safe 
operation of the switchgear system. 

5.2.3

 

Stop Delay, Overrun 

Overrun facilitates draining below the level sensor, e.g. for dynamic 

pressure systems. 

5.2.4

 

Runtime monitoring, Running time max. 

The menu can be used to access the item maximum runtime. In the 
default setting, this value is set to zero, i.e. the function is disabled. 
When a value of 1 – 60 minutes is set, then 

a  deactivation  of  the  pump  occurs  when  the  pump  runs  without 
interruption for longer than the set value. Moreover, an alarm will be 
triggered  and  a  corresponding  error  report  will  be  shown  on  the 
display.  The  pump  will  not  run  again  until  the  error  has  been 
confirmed. The runtime monitoring applies to both the automatic as 
well as the manual mode. 

5.2.5

 

Current monitoring (max. current) 

The  nominal  current  of  the  corresponding  pumps  can  be  set 

immediately. The software in the control adds a certain percentage 
to  the  set  value  to  compensate  tolerances.  The  triggering  occurs 
according  to  an  I²  /  t  function  and  with  this,  the  increased  initial 
current of the pump is taken into account. 

5.2.6

 

Inspection 

The

 

PS

MEGA 

1

 can issue a message on the display on when servicing 

is  to  be  performed.

 

The  configuration  possibilities  are  90,  180  or 

365 days.  The  function  can  also  be  turned  off  at  this  point  in  the 
menu (factory settings).

  

 Only service personnel are able to change or reset the 

settings.

 

5.2.7

 

Th. fault 1, Th. fault 2 

For  pumps  whose  temperature  monitoring  consists  of  only  one 
bimetallic  contact  per  pump,  thermal  error 1  can  be  deactivated 
accordingly in the menu. Thermal error 2 cannot be turned off in the 
menu.  

5.2.8

 

Error memory, Last fault

 

The last 4 errors that occurred remain stored in non-volatile memory 
and can be retrieved in the menu under  “Last fault”. 

 

Caution Last 

fault 1 is the last fault that occurred. If “Last fault 1” is called up in the 

menu,  the  last  errors  can  be  deleted  from  the  memory  with  the 
acknowledge button. 

5.2.9

 

Rotary field error 

The  rotary  field  monitoring  monitors  both  the  phase  sequence  as 
well as the lack of a phase. The pumps are locked in the event of a 
phase error, an alarm is issued and the message “Rotary field error” 
appears on the display. The rotary field monitoring can be activated 
and deactivated via the menu.  

The rotary field monitoring must be switched during 

the operation of 1~ motors. 

5.2.10

    

3~ monitoring 

Display, evaluation and monitoring of the motor current on all three 
phases. In the event of the deactivation of the 3~ monitoring, only a 
single  phase  (L1)  is  monitored.  This  enables  the  operation  of  1~ 
motors. (See page 10, point 7. Electrical connection) 

5.2.11

    

ATEX – Mode

 

ATEX mode has to be activated for pumps implemented in EX zones. 
ATEX mode impedes  the pumps from being turned on via manual 
function, via forced switch-on or via remote control system until the 
switch-off point is met. If the pumps are started via the overrun time 
or  manual  function  while  the  switch-off  point  is  exceeded,  then 

draining can occur below the switch-off point.  
The  manual  function  will  be  automatically  interrupted  after 
2 minutes. When the ATEX function hinders pumps from turning on, 
the display will show the report 

“ATEX: Level below switch-off point.”

 

5.2.12

    

Service – Mode 

The default setting is for service mode to be activated, i.e. all setting 

can be changed. When the service mode is turned off in the menu, 
the settings can only be queried using the digital potentiometer.  

When the service mode is deactivated, no settings can be 
changed other than the local language. 

Menüpunkt 

Erklärung 

Preferences reset 

All settings can be reset with this function. 

Attention: 

Pump starts, operating hours, 

error memory and maintenance status are 
preserved. 

FatFS: Filename 

An input menu can be opened here to assign 
a file name. Now the current settings and log 

files can be saved under this file name. 

FatFS: Read 

The file with the setting parameters is read 
by the SD card 

FatFS: Write

 

The file with the current parameters is 
written by the SD card. 

FatFS: Log

 

The operating hours, pump starts and error 
notifications are transferred to the memory 
card. 

PS

MEGA 

1

www.lesa.de

         

7

 

Содержание PSMEGA 1

Страница 1: ...e pump control Options FS PSMEGA1Freiluftsäule Messglocke V4A Schwimmschalter Tauchsensor Operating Manual www lesa de PSMEGA1_2v0 04092020 LESA Messtechnik Hegholt 59 22179 Hamburg Germany Phone 49 40 641 00 41 Fax 49 40 641 18 36 ...

Страница 2: ...n menu images and notes on configuring the parameters 5 1 Table of possible settings 5 2 Supplements to the individual items in the configuration menu 6 0 Error reports in the display potential errors assistance 6 1 Table of possible fault messages 6 2 The settings in the menu cannot be changed 6 3 Motor contactor monitoring 7 0 Installation pneumatic and electrical connection and connection of 3 ...

Страница 3: ...and maintenance of the switchgear must hold the requisite qualifications 2 3 Safety instructions for the operator Observe the existing regulations governing accident prevention the VDE specifications and stipulations of the local energy supply company When opening the device removal of the panel or terminal cover or working on the pumps the control must be switched off from the power supply throug...

Страница 4: ...rnal audible alarm Collective fault alarm fixed voltage and potential free High water alarm potential free Memory number of pump starts Operating hours counter Ammeter Pump change Forced switchover High interference immunity Easy to operate ATEX mode Service mode Input for float switch dry run protection Analogue outputs 0 10 V and 4 20 mA Fault memory stores the last 4 faults Automatic display il...

Страница 5: ... The green LED will blink If the pump is being run via the manual function then it will automatically shut off after 2 minutes and the green LED will flash irregularly The automatic and manual operation are shut down using this button The green LED is off The pump is switched based on the level The green LED is lit continuously If power is interrupted during manual mode then the control system wil...

Страница 6: ...arm 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 light Thermal fault 1 Is deactivated Is activated Is deactivated There is no bimetallic contact alarm contact connected to terminal 12 13 Rot field fault Is deactivated Is activated Is activated in case the phase sequence is ...

Страница 7: ... the menu 5 2 8 Error memory Last fault The last 4 errors that occurred remain stored in non volatile memory and can be retrieved in the menu under Last fault Caution Last fault 1 is the last fault that occurred If Last fault 1 is called up in the menu the last errors can be deleted from the memory with the acknowledge button 5 2 9 Rotary field error The rotary field monitoring monitors both the p...

Страница 8: ...y language can also be changed when service mode is deactivated 5 2 17 Menu items data import and export The PSMEGA 1 offers the option of writing and reading configuration files 5 2 18 FatFS Filename At this point the file name is assigned for the configuration and log files The file name PSMEGA 1 is preset A code page can be opened by pressing the select acknowledge button A character can be sel...

Страница 9: ... 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 without interruption for longer than the time set Check function of pump Floating switch malfunction Validation of floating switch...

Страница 10: ...n must be paid that a right rotary field is created The terminals are labelled L1 L2 L3 N The PE terminals are implemented as a brass rail 7 3 1 Connection of the pump The connections L1 L2 L3 of the pump are directly attached to the motor contactor The protective earth conductor is connected to the remaining PE terminal The bimetallic contact which unlocks the pump after it has cooled down needs ...

Страница 11: ...prox 24 volt In the delivered state the measuring range of the level sensor is set in such a manner that it matches the measuring range of the internal pressure sensor In the event that the level sensor should be connected with a different measuring range then the corresponding setting must be changed in the menu see section 5 2 14 The output is active i e the sensor is supplied with voltage by th...

Страница 12: ...e 20 bis 50 C Dimensions 250 x 225 x 115 mm HxWxD Dimensions with cable gland and air connection Fuse 5 x 20 1AT alarm output Voltage supply for 4 20 mA sensor and float switch 24V DC Cable glands 2 x M25 x 1 5 1 x M16 x 1 5 3 x M16 x 1 5 blind plug Hose attachment 6 8 mm Other hose connections are available on request Software version Ver 0 3 When opening the device removal of the panel or termin...

Страница 13: ...12 0 Annex Terminal block wiring diagrams Terminal connection of 3 motors Terminal connection of 1 motors Caution When connecting 1 motors the maximum connected load is 2 4 KW PSMEGA 1 www lesa de 13 ...

Страница 14: ...Relay outputs signal inputs and analogue outputs PSMEGA 1 www lesa de 14 ...

Страница 15: ...A 180 mm B 180mm o 5 0mm PSMEGA 1 www lesa de 15 ...

Страница 16: ...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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