Utilising the robust, maintenance-free asynchronous motor in combination with COMBIVERT digital drives, it is now possible to incorporate these drives into fields of application where in the past service intensive DC or expensive servo technology have been the only options.

As a manufacturer of frequency inverters, servo systems and geared motors KEB has built up 25 years experience in solving drives applications. Using this knowledge as a basis, KEB has developed the new generation regulated inverter series COMBIVERT F4.

KEB COMBIVERT F_4-F

The system is easy:

• reliable incremental or Sin/CosgFico9er feedback gives rotor speed
• fast current and speed regulationnenables exact control of the rotating field in the motor which ensures optimum motor performance.
• the heart of the COMBIVERT consists of the clip-set KEB-MFC/DSP and the VeCon analogue processor and gives the benefits of
• accurate speed holding for grinding drives
• rugged mechanic and around the clock availability for steel industries
• tension control for winding application
• rated motor torque at standstill for lifts, cranes and hoists
• high peak torque capacity of acceleration of tools in machining centres
• low noise for theatre and stage

The principle of field-orientated control requires frequent measurements of voltage, current and rotor speed. The microprocessor then performs fast calculations and compares to an adaptive motor model. This method derives the applications exact torque, speed and power requirements and therefore provides new regulation values for the motor, ensuring maximum performance.

Field-orientated technology has the ability to accurately control the motor magnetising flux and hence motor torque. The powerful microprocessor used can also achieve "PLC" functions, programmable I/O, timers etc. thus creating the unique possibility of networking or machine control without se-perate "PLC".

Optimum performance is guaranteed when using the "matched" combination of KEB COMBIVERT and eiher KEB servo-motor or KEB COMBIGEAR geared motor. As a result it is often possible to use a drive combination of a smaller kW rating.

The benefits for the user are reduced investment, quick pay back, extended maintenance and service intervals, easy adaption to new requirements, low expenditure for training and commissioning.

Energy efficient solution as complete drive resources are used reducing power requirement and running costs.

KEBCOMBIVERT F_4-F

The complete drive system with three-phase a.c. motors consisting of:

• KEB servo-motor with encoder feedback RS 422 - 2500 pulses / revolution, separate ventilation or self-ventilation option: Spring-applied brake Standard design ВЗ, В5, B14 with IEC dimensions or KEB COMBIGEAR as geared motors in the design: inline helical gear, shaftmounted helical gear, spur worm gear, or helical bevel gear for applications of 0.25... 55 kW and output speed between 2... 800 min^-1
• exactly matched frequency inverters KEB Combivert F4-F with output rating of 0.75 ...75kW for the functions speed control torque control synchronous control as well as electronic gearbox and the application software feature single-axis positioning
• for the fast installation prefabricated encoder cable with plug connection can be supplied
• and for the user friendly commissioning of systems

• KEB Combivis
• removable programming operators
• KEB operator terminal

• quick and easy adjustments using the CP-Mode with simple parameter structun

0. Password input
1. Actual speed indication
2. Inverter status
3. Apparent motor current
4. max. apparent motor current
5. Actual torque
6. Set-point speed indication
7. Acceleration time
8. Deceleration time
9. Torque limit
10. max. set-point speed
11. Jog speed
12. P-factor speed regulator
13. l-factor speed regulator
14. Incremental encoder pulses / revolution
15. Behaviour when at external error
16. Offset REF 1
17. Zero point hysteresis REF1
18. Function output A1
19. Amplification output A1
20. Amplification output A2
21. Switching condition output D1
22. Switching condition output D2
23. Torque level output D1
24. Speed level output D2
25. Motor power
26. Rated motor speed
27. Rated motor current
28. Rated motor frequency
29. Rated motor output factor cos (<p)
30. Rated motor voltage
31. Motor adaption
32. Control on/off
33. Boost
34. Rotation reversal incremental encoder 1
35. Reaction to limit switch
36. Function 2nd analog input

• 8 parameter sets in the application mode allows flexibility and adaptability

described in great detail in the application manual part no.: OF.F4.0EA-K110

F4 - an inverter with many possibilities:

• Preadjusted basic unit in a control cabinet with cover status display and fault indicator.
• Operation and indication by means of the DIGITAL OPERATOR 00.F4.010-2009
• Additionally with isolated serial RS232/485 interface on Sub-min D-connector with the INTERFACE OPERATOR 00.F4.010-1009
• Basic operator and programming station MEMORY OPERATOR 00.F4.010-3009 plugable, universal data medium for easy to service customer settings - in connection with the COMBICARD SYSTEM 00.F4.000-3009 a safe tool for the unit parameterizing.

Field bus communication in interconnection with PLC or PC is done via pluggable serial interface modules.

• LON - Operator 00.F4.010-4009
• CAN - Operator 00.F4.010-5009
• PROFIBUS - Operator 00.F4.010-6009
• BUS - Operator 00.F4.010-7009
• InterBus-Loop - Operator 00.F4.010-8009
• In-pipe Inspections Services