Frequency inverters for elevators - Loher DYNAVERT L
Compact and tailored for these applications

Loher frequency inverters for elevators, DYNAVERT L guarantee the highest degree of reliability and travel comfort. Depending on the particular requirement, they can be flexibly used for supply voltages extending from 230 V to 500 V. They can control both synchronous as well as induction motors. DYNAVERT L units are efficient, easy to handle and can be used for elevator systems with ratings of up to 105 kW. They are state-of-the-art fully digitized voltage-source DC link converters equipped with fourth generation IGBTs.

Their equipping means that they can be easily used in all operating environments – even in hospitals and chemical plants. Today, elevator drives are designed either as gearless or as geared solutions. The benefit of using Loher DYNAVERT L  -  it is suitable for both systems by setting software parameters only – ee. within DYNASYS S - at gearless and within DYNASYS G at geared solutions.

DYNAVERT L - Customer benefits

• Compact and ready-to-connect unit with integrated EMC filter, line reactor, braking chopper, braking resistor and a quiet contactor for the travel commands. This is the reason that no additional wiring is required
• Up to an elevator power of 30 kW the drive unit can be accommodated in a control cabinet with a depth of 260 mm
• Operation with only one contactor for the travel commands in conformance with DIN EN 81-1 possible – TÜV certified (German Technical Inspectorate)
• Encoder inputs integrated as standard to control synchronous and induction motors
• Comfortable operation possible – even without speed feedback ( for asynchronous motors, up to approx. 1.2 m / s passenger cabin speed only) 

DYNAVERT L - Technical data overview

DYNAVERT L - typical applications

• Elevators for passengers and loads, implemented as cable elevators according to EN81-1, inclined elevators

Sercices and Features

DYNAVERT L frequency inverters – cost-effective and powerful

• Highest performance at a low cost – 50 % energy saving over standard drives
• Can be connected to TN, TT and IT line supplies up to 500 V
• Safe, reliable and disturbance-free operation using the integrated filter, reactors and contactor(s) for the travel commands
• Quick and easy commissioning using optimum control adaptation and user-friendly,
  PC-supported software – IMS
• Conventional and DCP interface that can be adapted to all elevator controls
• EMC directives are fulfilled without requiring any additional mounted components
• Ready-to-install frequency inverter saves installation time significantly
• Integrated solution of the power components reduces costs for the higher-level elevator control