KVT MF 1000 Manual Download Page 9 | Manualshive

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KVT MF 1000 Manual Download Page 9

K U N S T S T O F F – V E R B I N D U N G S – T E C H N I K G M B H

Stand: Okt-12

Werkering 6 – 33609 Bielefeld – Tel. 0521 / 93207-0 – Fax 0521 / 93207-11

Kap. 7 – Seite 9

7.3.4

Flow rate monitor and filter

The flow rate monitor guarantees that no start signal is sent to the EWS gen-
erator if there is insufficient flow rate in the cooling circuit. The EWS generator
start signal is interrupted as soon as the flow rate drops below the flow rate
value set on the evaluation board [4]. The generator is not ready for use.

The flow rate monitor evaluation board is inside the EWS compensation. No
modifications to the board must be made under any circumstances without
consulting

KVT Bielefeld GmbH

. If the generator starts although there is insuf-

ficient coolant flow, this results in irreparable damage to the connected EWS
converter.

Photo10: Flow monitor, filter casing

The mesh filter [1] absorbs dirt particles which can adversely affect the oper-
ating efficiency of the flow rate monitor.
The filter can be removed for cleaning or replacement by undoing the hex-
agonal nut.

Photo11: Filter

Coolant connections

LT 100 flow monitor

Filter casing

Mesh filter
Mesh size = 250 µm

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Summary of Contents for MF 1000

Page 1: ...K U N S T S T O F F V E R B I N D U N G S T E C H N I K G M B H Stand Okt 12 Werkering 6 33609 Bielefeld Tel 0521 93207 0 Fax 0521 93207 11 Kap 7 Seite 1 EWS system components MF 1000 MF 1500 ...

Page 2: ...sed in compliance with this product manual It is recommended to thoroughly work through these instructions before using the EWS system components 7 1 2 General The requirement for a cutting edge joining technology has been achieved by KVT Bielefeld with the development of EWS generators and electromag netic converters It specifically concerns the installation of metallic compo nents and thread ins...

Page 3: ...nd output adjustment optimised for the least losses Safety and monitoring functions are of course included in the electronic con trol and regulator unit The infinitely variable power setting makes it possible to optimally adjust the output power for the particular application Photo 2 EWS generator MF 1000 MF 1500 7 2 2 Controls and display elements 1 Mains switch 2 Fault display fault indicator la...

Page 4: ...ents 2 Ready fault message to an upstream control unit 5 pole 270 see 7 6 7 fault circuit diagram for the pin assignments 3 Type plate with serial number Photo 4 EWS generator connections on the rear side 7 2 4 Fuse protection 1 Mains cable 2 Mains fuse 10 A for 1000 W and 12 A for 1500 W 3 Secondary fuse 16A flink Photo 5 Fuse protection 7 2 5 Back up fuse Generator Back up fuse Cable length Cabl...

Page 5: ...flash when this overload threshold is reached Simultaneously the fault indicator relay is set In this way an electrical control is possible as well as the optical control The overload display is automatically reset with the subsequent start impulse or by pressing the test button optional However if the fault LED is lit with a steady light this can be caused by several things defective secondary fu...

Page 6: ...ency 28 35 kHz Frequency control automatic Power adjustment infinitely variable from 25 to 100 Table 3 Technical data 7 3 EWS compensation MF1000 7 3 1 Mode of operation The compensation Photo 6 is interposed as connector for adjusting the EWS converter s to the generator Only one optimal adjustment matching of the compensator to the EWS converter s used guarantees fault free operat ing efficiency...

Page 7: ...n to the converter is performed optional ly using special flexible EWS tubed cable or with copper pipe The following connections and components are on the rear side of the com pensation Photo 8 Rear side of the compensation MF 1000 1 Start socket the EWS generator can be activated using this by an up stream control unit with a voltage free contact see 7 6 7 Start circuit diagram for pin assignment...

Page 8: ... number and size of the installed condenser blocks 1 frequency adjustment and with the transmission ratio tapping 3 impedance adjustment of the transmitter 2 inside the com pensator Photo 9 EWS compensation inside and transmission ratio Modifications must only be made after consultation with KVT Bielefeld GmbH Condenser block Transmitter Transmission ratio terminal block Flow rate monitor evaluati...

Page 9: ...erator is not ready for use The flow rate monitor evaluation board is inside the EWS compensation No modifications to the board must be made under any circumstances without consulting KVT Bielefeld GmbH If the generator starts although there is insuf ficient coolant flow this results in irreparable damage to the connected EWS converter Photo10 Flow monitor filter casing The mesh filter 1 absorbs d...

Page 10: ...rrent Eddy currents are produced in the insert heat element by this magnetic field The insert heat element is heated in seconds by the eddy currents The temperature that the insert heat element is heated to ban be adjusted for the duration of the heating and the position of the insert in the converter during the heating This temperature can be reproduced very precisely The optimal heating paramete...

Page 11: ...sponsibility of the customer to provide one of the corresponding spare parts necessary for production reliability Components made of high quality technical ceramic are often used in ERW converters Depending on manufacture these components are subject to a replacement time of approx 6 weeks Spare part supply by KVT Bielefeld it is basically not provided The spare parts necessary for production reli...

Page 12: ...000 mm by KVT Bielefeld The length of the tubed cable is adapted for the respective application Gradation in 50 mm steps is usual Two EWS tubed cables one pair of EWS tubed cables are needed for connecting a converter to a compensator Photo 13 ERW pair of tubed cables 1 Connection to the compensator 2 Labelling type length 3 Spacing clips for parallel routing 4 Connection to the converter Instead ...

Page 13: ...ompensator connection pins 3 Green flow rate control LED Photo14 ERW connection cable 2 Screw the EWS compensation to the electromagnetic converter using a pair of EWS tubed cables or copper pipe All connections must be made with an electrically conductive material brass copper Converter connection Thread G1 8 1 Copper sealing ring Photo 15 EWS tubed cable converter side Compensator connection Fer...

Page 14: ...ed pump 5 Connect generator and cooler with 230 V mains 6 Switch on cooler 7 Switch on generator The fault control lamp lights immediately after switching on It goes out after a few seconds Afterwards the equipment is ready for use 8 Set the power regulator to the smallest value 9 Press the remote control switch or test button 10 Adjust the power regulator as necessary to the required power for th...

Page 15: ...ust also be taken into account that these components are not designed for permanent jerky movements They must be parked on a vibration free sup port Furthermore it must be ensured that the cooling slots are not obstruct ed A suppression of the natural air circulation can cause overheating and thus destruction of the electronic components 7 6 2 Checking the water flow rate The green LED on the EWS ...

Page 16: ...f the compensation This measure can be per formed with compressed air This must also be carried out for the other water bearing EWS components 7 6 4 Safety instructions Electromagnetic radiation is produced during operation Heart pacemakers or other sensitive electronic compo nents can be damaged Persons with heart pacemakers or similar must keep away from these components during operation otherwi...

Page 17: ...K U N S T S T O F F V E R B I N D U N G S T E C H N I K G M B H Stand Okt 12 Werkering 6 33609 Bielefeld Tel 0521 93207 0 Fax 0521 93207 11 Kap 7 Seite 17 7 6 5 Function diagram EWS ...

Page 18: ...K U N S T S T O F F V E R B I N D U N G S T E C H N I K G M B H Stand Okt 12 Werkering 6 33609 Bielefeld Tel 0521 93207 0 Fax 0521 93207 11 Kap 7 Seite 18 7 6 6 EWS connection cable circuit diagram ...

Page 19: ...K U N S T S T O F F V E R B I N D U N G S T E C H N I K G M B H Stand Okt 12 Werkering 6 33609 Bielefeld Tel 0521 93207 0 Fax 0521 93207 11 Kap 7 Seite 19 7 6 7 Generator Start Fault circuit diagram ...

Page 20: ...g Replace converter new matching ON ON pressed OFF none None too little coolant flow rate Switch on cooling cir cuit Clean filter Check smaller flow amount ON ON pressed OFF none ERW cable not con nected Connect ERW connec tion cable ON ON pressed OFF pulsates wrong matching ERW hoses parallel Reduce amplitude by reducing power setting 4 and restart genera tor ON ON pressed OFF pulsates Amplitude ...

Page 21: ...ace EWS converter if necessary Increase coolant flow rate Clean or replace fine filter Replace fuse according to the specification Mains control lamps YE S YE S NO ON steady ON flashing OFF OFF EIN Fault No power mains Fault Defective mains fuse Fault ERW compensator not correctly matched Fault ERW compensator not correctly matched Fault Coolant flow rate too low Fault Short circuit ERW converter ...

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