Conversion Kit for Replacing a Ziehl-Abegg ZA1FU Inverter with an RST Unit Technical Description of the RST-Elektronik FRC-IMD3 The FRC-IMD3 frequency inverter from RST Elektronik is designed for use in elevator systems and offers the following features: Input voltage range: 180V to 480V Overload capacity: Factor 2.0 at 15 kHz switching frequency Motor compatibility: Operation with asynchronous and synchronous (gearless) motors Encoder compatibility: Support for all common square wave and sine wave encoders Safety features: Optional integrated STO function for operation without contactors Communication interfaces: DCP (DCP3/DCP4), CANopen Diagnostics and maintenance: Integrated data logger, data storage via USB stick, PowerControl PC software for parameterization User interface: Multilingual menu navigation Technical specifications of the FRC-IMD3: Rated / maximum current: 16 A / 32 A Motor power: 7.5 kW Dimensions (H x W x D): 358 x 186 x 220 mm Weight: approx. 10 kg In the event of a conversion from Zieh-Abegg to RST IMD inverters, we require the complete system data. The following data is required: -Travel height -Car speed - Encoder data (photo of the encoder nameplate) -Drive data machine (photo of the drive nameplate) - System with or without travel contactors (STO) - Control system manufacturer (circuit diagram from which the connection assignment can be taken)





