Lift Drives

COMBIVERT F6/S6 Lift

The COMBIVERT F6 and S6 Lift Drives offer a powerful and precise drive solution for modern lift systems. They enable precise control of speed and torque and ensure smooth, comfortable and energy-efficient operation – regardless of load and lift height.

With the Lift software package, developed specifically for lift operation, the drives meet the highest safety requirements and offer maximum flexibility in the design of various system concepts. Thanks to their compact design, high overload capacity and excellent control quality, the COMBIVERT F6 and S6 Lift are ideal for lift applications with limited installation space and the highest comfort requirements.

Highlights

Overload capacity
Compact design
Flexible motor operation: For asynchronous/synchronous motors, with or without a gearbox
Encoderless control for asynchronous/synchronous motors
High switching frequency

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Technical data

Device variant	COMBIVERT F6 Lift		COMBIVERT S6 Lift
Power range		0.75 kW ... 250 kW – 400 / 480 V
		0.75 kW ... 45 kW – 200 V 3 Ph
		0.75 kW ... 1.5 kW – 200 V 1 Ph
Rated currents	11A ... 460 A		4 A ...16.5 A
Peak currents (60 s)	...2 x I_n		...2 x I_n
Fieldbus communication		CANopen Lift (CiA 417), DCP 3 +4, Modbus, DIN 66019, Ethernet TCP/IP
Communication interfaces		CAN, serial RS-323/485 RS-232/485, Ethernet
Functional Safety		STO, SBC
Encoder interfaces		Multi-encoder

Advanced functions for optimised lift operation

Automatic inertia determination for the entire system
Ogive function enhances short travel
Travel counter and direction change counter
Emergency travel programmes in the event of earthquakes, evacuations, etc.
Event and error logs with time stamp
Automatic calibration of motor data
Synthetic pre-torque
Brake chopper monitoring with safe shutdown
Encoderless emergency operation of synchronous motors
Adaptive speed profile with limited mains power

FUNCTIONAL SAFETY FOR LIFT CONSTRUCTION

Safety is a crucial factor in lift construction. The COMBIVERT F6 and S6 Lift Drives integrate proven safety-related functions directly into the frequency converter, thereby making an active contribution to the protection of people, equipment and buildings – without the need for additional external safety components.

Benefits for lift manufacturers

Reduced system complexity thanks to integrated safety functions
No option cards, multi-encoder interface built into the unit
Fewer external components, reduced installation effort
Simplified safety verification
Higher system availability and shorter downtimes
Future-proof solution for expansions and new standard requirements

Lift Drives comply with the relevant standards for lift systems, including:

EN 81-20 / EN 81-50
EN ISO 13849 and IEC 61508 / IEC 61800-5-2
(Functional safety of machinery and drives)

They therefore support the standard-compliant verification of functional safety up to PL e or SIL 3, depending on the function and system design.

Keb drives safety sto — Safe Torque Off (STO)

Keb drives safety sbc — Safe Brake Control (SBC)

The safety-related functions are implemented directly within the device – no external safety relays or motor contactors are required:

Safe Torque Off (STO)

Two-channel safe shutdown of motor torque
Certified up to PL e / SIL 3
Operation without motor contactors possible
Advantages: reduced wiring effort, reduced EMC, fewer sources of error

Safe Brake Control (SBC)

Monitoring of the motor brake via dedicated inputs
Meets the requirements for UCM (Unintended Car Movement)
Increased safety during standstill and holding functions

In addition, the F6 and S6 Lift Drives offer numerous functions to ensure safe operation and prevent faults:

Motor phase check before every trip
Overspeed and blockage monitoring
Speed and torque monitoring
Software-based motor protection switch
Temperature monitoring of motor and inverter
Internal monitoring of brake chopper and power sections
Deceleration monitoring for shortened shafts
Special modes for evacuation, UPS operation and earthquakes

Evacuation without an encoder is also possible with synchronous machines, for example in the event of a fault or during maintenance work.

CONTROL WITH A LIFT OPERATOR

Optional LCD display designed specifically for lift applications

Intuitive operation
Lift terminology, 7 languages
Choice of metric or imperial units
USB and Ethernet interfaces
Detailed diagnostics and data logging
5-level parameter password protection
Custom parameter library available
Memory space and real-time clock
Detailed diagnostics
Also suitable as a remote display

In use in these areas of application

Lifts and escalators

Drive controllers with special lift features, regenerative systems, the matching filter technology, and more provide the prerequisites for the safe and efficient drive of elevator systems.

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