KEB Elevator Drives are built to handle the most difficult elevator applications. The drives feature high overloads, an integrated brake transistor, and are capable of 16kHz switching frequency.
KEB drives have been designed with the elevator adjuster in mind. They program in familiar units like fpm through a full text LCD display. Upload/download functionality makes saving and copying parameters easy. A static motor learn procedure can be done under the brake without needing to balance the car. In the end, this saves the contractor time and money.
KEB’s LCD elevator operator features a time-stamped fault log to help diagnose problems. Tools like KEB’s Combivis software allows multi-channel scope traces which can be useful for troubleshooting.
KEB elevator drives offer a host of internal safety features
KEB elevator drives offer a number of different control options:
KEB supports the following dual channel encoder cards:
KEB’s synthetic pre-torque functionality reduces rollback and smooths take-off. The functionality is easy to adjust and integrates with KEB’s internal brake handling function.
KEB’s feed-forward torque control (FFTC) can be activated by doing a system inertia learn of the elevator. This function provides optimal response for dynamic gearless systems.
KEB’s I/O functions are freely programmable by the user. A short list of functionality which can be assigned to the I/O includes:
KEB also offers a CANOpen Lift option that is developed according to the CiA 417 standard. This improves the interoperability of the drive in the elevator control system.
The R6 regen drives can provide a quick return on investment for a building owner by reducing energy costs. If you are interested in seeing how much you could potentially save – contact KEB America for more information.
KEB’s R6 line regen unit is extremely compact and can be mounted easily in the elevator control panel.
The R6 unit uses patented NCM control technology to synchronize its output to the utility line. NCM is extremely robust against lineside disturbances and voltage notching.
KEB’sR6 regen drives can be used with either 208-230V or 480V mains. The units auto-identify the line voltage and make the necessary adjustments.
KEB Harmonic Filters provide less than 8% THDI performance.
KEB Z1 filters are easy to implement and maintain. They are passive devices that do not require extra circuitry or controls to operate.
KEB filters are available for large and small elevators. The Z1 product is offered up to 400A nominal current.