The document describes the TORQMAX F5 ELEVATOR DRIVE, a frequency inverter designed for smooth speed regulation of three-phase motors in elevator applications. It is manufactured by MCE and KEB America.
Function Description
The TORQMAX F5 series inverter is a high-quality, dynamic performance frequency inverter. It is exclusively designed for smooth speed regulation of a three-phase motor in elevator applications. The inverter provides various control modes, including open-loop V/Hz, open-loop vector, closed-loop FOC (Field-Oriented Control), closed-loop analog pretorque, closed-loop digital pretorque, and closed-loop synthetic pretorque. These modes allow for precise control of motor speed and torque, with features like internal pretorque to minimize rollback at brake pick-up without external load weighing devices.
The drive supports various speed selection methods, including digital speed selection (up to five speeds), binary speed selection (up to seven speeds), absolute analog speed, bi-polar analog speed, and serial speed control via DIN66019 protocols (Service 49 and 50) and CiA417 (CAN Open Lift functionality). Direction control can be managed by digital inputs or polarity of analog signals, with specific logic for handling simultaneous direction signals.
The inverter includes encoder feedback interfaces (X3A and X3B) for precise motor position and speed feedback, supporting incremental TTL, EnDat, Sin/Cos, SSi, Hiperface, UVW, and Resolver encoder types. It also offers encoder scaling and rotor detection modes for PM synchronous motors, including Stationary Pole Identification (SPI) and Encoder Pole Learn.
Safety features include Safe Torque Off (STO) functionality in accordance with IEC 61800-5-2, performance levels (ISO13849-1), and SIL 3 (IEC 61508 and IEC62061). It also has a brake transistor monitor circuit to detect brake transistor failure and signal the elevator controller for a safe shutdown.
Important Technical Specifications
The TORQMAX F5 drive is available in various power ratings and voltage classes:
- 7.5 hp to 60 hp for 230V class (270A peak)
- 7.5 hp to 175 hp for 480V class (450A peak)
- CPU Software version 4.3 or greater
- Application Software Version 3.34
Input Ratings:
- 230V Units: Supply voltage 180-260VAC (+/- 0%), 50/60 Hz (+/- 2). Rated input current ranges from 28A (13/E housing) to 264A (23/U housing).
- 480V Units: Supply voltage 305-528VAC (+/- 0%), 50/60 Hz (+/- 2). Rated input current ranges from 17A (13/E housing) to 385A (28/W housing).
- Branch circuit protection requires fast-acting Class J fuses, with specified amperage ratings for each unit size.
Output Ratings:
- Output voltage: 3 x 0...V input (3 x 0...255V).
- Output frequency: Generally 0 to 599Hz.
- Rated switching frequency: 4 kHz, 8 kHz, 12 kHz, or 16 kHz, depending on the unit size and configuration.
- Maximum switching frequency: 8 kHz or 16 kHz.
- Stall current at various switching frequencies is provided for each unit size.
Braking Circuit:
- Minimum braking resistance and maximum braking current are specified for each unit size.
- A line choke with minimum 3% impedance is required for 230V inverters 50hp and greater, and for 480V inverters 100hp and greater. An isolation transformer can also satisfy this requirement.
- Special output chokes are recommended for long motor cable lengths (greater than 40 feet) to mitigate high voltage peaks and dV/dt on motor windings.
Installation Information:
- Max. shielded motor cable length: 165 ft to 330 ft, depending on unit size.
- Tightening torque for power terminals: 4.5 in-lb to 220 in-lb.
Environmental Conditions:
- Maximum surrounding air temperature: 45°C (113°F).
- Storage temperature: -25°C to 70°C (-13°F to 158°F).
- Operating temperature: -10°C to 45°C (14°F to 113°F).
- Housing design/protection: Chassis / IP20 / Pollution Degree 2.
- Relative humidity: max. 95% without condensation.
- Derating: Power rating must be reduced by 1% for each additional 330 ft (100 m) above 3,300 ft (1000 m). Maximum elevation for operation is 6,560 ft (2000 m).
Encoder Feedback Interfaces:
- TTL incremental input/output signal channels: 2...5V.
- EnDat, Sin/Cos, SSi, Hiperface encoder input channels: 1 Vpp with 2.5 V offset.
- EnDat encoder interface X3A: Input resistance 120 Ohm, max input frequency 200 kHz, max cable length 100m.
- SSi encoder interface X3A: Input resistance 120 Ohm, max input frequency 200 kHz, max cable length 100m.
- UVW encoder interface X3A: Input resistance 120 Ohm, max input frequency 200 kHz, encoder line number 1...8192 inc.
Usage Features
- Small Mounting Footprint: Designed for efficient use of space.
- Multi-lingual LCD Display: User-friendly interface with multiple language options (English, Spanish, French, German, Italian, Portuguese, Russian).
- Structured Parameter Lists: Simplifies adjustment and handling of drive settings.
- OEM Customization: Allows for specific configurations without special software.
- Adjustment Wizards: Guides users through start-up and operation procedures.
- Keypad Operator: Provides a user interface for programming and diagnostics, with buttons for navigation, parameter adjustment (NUM function for direct value entry), and hotkeys for quick menu access.
- QR Codes: Links to KEB America YouTube channel for instructional videos and support.
- Elevator App: Mobile application for programming, diagnostic, and troubleshooting via Bluetooth dongle. Features real-time diagnostic dashboard, parameter viewing/adjustment, saving/emailing parameter reports, and PDF manuals.
- Custom Parameter Lists: Allows masking of parameters from view based on user access password level.
- Custom Defaults Settings: Pre-saved parameter files (.dw5) can be loaded to create custom default settings.
Maintenance Features
- Error Messages & Fault Log: Displays drive faults and special events with time-stamps, stored in flash memory on the keypad operator.
- Fault Data Logging: Captures scope traces of up to four parameters in high resolution before and after a drive fault, saved to flash memory and transferable via FTP for evaluation.
- Diagnostic Screens: Split-view screens grouped by related parameters for easier troubleshooting.
- Transistor Tests: Instructions for checking input and output circuits of the inverter using a multi-meter in diode check mode, with specified values for different housing types.
- Overload Curves: Time-dependent overload curves for different housing sizes, indicating when an overload fault will be triggered and when it can be reset.
- Low Speed Overload: Describes how the drive manages current at low speeds to prevent overheating of power transistors, including carrier frequency reduction.
- Auto Reset: Configurable parameter (LX01) to automatically reset most drive faults a specified number of times per hour.
- Function Test: Parameter (LX06) to turn on all fans at high speed for checking their operation.
- Watchdog Timer: Serial watchdog timer (LX09) between keypad and control card, and Field Bus Watchdog (FB12) for serial communication.
- Motor Overheat Warning: Output can be configured to trigger a warning based on motor temperature (LM10) or PTC thermistor resistance.
- Braking Resistance: Parameter (LX18) to set braking resistor value for calculating dissipated energy, stored in DG42.
- Unintended Movement Test: Functionality (LX21, LX25) to detect and log unintended motor movement after a normal high-speed run.
- Combivis Software: Computer program for connecting to the drive, setting/uploading/downloading parameters, and taking scope traces for evaluation and diagnostics.
- Replacement Parts: List of part numbers for LCD Serial Elevator Keypad Operator, TTL Encoder Card Kits, EnDat Encoder Card Kits, and Ferrite Rings. Emphasizes providing the drive serial number to KEB Service and Repair Department for correct part identification.
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