Overview
Demag frequency inverters ensure that your motors deliver the performance that you expect. We offer solutions for virtually all drive applications with our Dedrive Pro 880 and Dedrive Compact STO ranges. To meet even the most demanding requirements.
Dedrive Pro 880 and Dedrive Compact STO provide optimum utilisation of motor output for variable speed control. The starting current is limited and, at the same time, the motor and gearbox loads are reduced – any mechanical elements (including the crane girders and crane runway) are protected and loads are transported smoothly and gently.
See all the performance details and benefits on the product pages
For demanding drive applications – from 0.55 to 560 kW
Dedrive Pro 880 frequency inverters
Safe. Efficient. Controlled.
Our new generation of Dedrive Pro 880 frequency inverters offers high-performance components ranging from 0.55 to 560 kW for 380 to 690 V systems. This new range of frequency inverters is the right solution for many crane control requirements.
Developed by a crane manufacturer for crane manufacturers: Dedrive Pro 880 offers completely configured software solutions and minimises engineering and design costs with its Demag CraneControl system
Efficient engineering
Dedrive Pro 880 offers completely configured software solutions and minimises engineering and design costs with its crane control system.
- Precise control and monitoring with Direct Torque Control (DTC)
- High load handling rates by means of sensor-less load-sway reduction
- Precise load handling by synchronised control of several hoist units
- Torque shared between mechanically connected geared motors
- Mechanical brake control with monitoring system
- Reduced power consumption thanks to efficiency calculator
High safety and reliability
STO (Safe Torque Off) is already integrated as standard. Further functions are supported by an optional safety module (available from January 2017):
- Safe Stop 1 (SS1)
- Safe Stop Emergency (SSE)
- Safe Brake Control (SBC)
- Safe Limited Speed (SLS)
- Safe Maximum Speed (SMS)
Simple commissioning
- Drive Composer PC tool for commissioning, configuration and monitoring
- Drive Composer Pro: user-defined parameter windows, control diagrams for installation configuration and setting safety functions.
Convenient operation
- Intuitive control panel for easy menu navigation for convenient parameter programming and diagnostics
Retrievable settings
- Complete software and parameter configurations can be saved on a removable memory unit. This ensures that the system can be quickly returned to service after a unit is replaced.
Direct synchronisation
- Interlinking several frequency inverters for directly synchronised drive-to-drive communication (D2D) – without the need for additional hardware
Open communication
- Data exchange with many automation systems thanks to plug-in field bus adapter
Pro-active service
Comprehensive service functions for preventive maintenance (lifetime counters), e.g.:
- Crane elapsed operating time counter
- Frequency inverter elapsed operating time counter
- Fan operating time counter
- Brake starting frequency counter
- Hoist load spectrum recorder
- Inverter starting frequency counter
Complete transparency
- Remote diagnosis tool with integrated web server
- Process and drive data are recorded and saved
- Processes are monitored by means of integrated warning and fault reporting functions
Hardware
- Motor outputs from 0.55 to 560 kW
- Rated voltage: 380 – 415 V, 380 – 500 V, 525 – 690 V (+/-10%)
- 1.5 times overload capability for 1 minute/5 minutes
- Short-circuit/earth-fault resistant motor circuit output
- CE, CSA and UL listed
- IP 55 enclosure up to size R9 (optional)
- Master/slave capable
- Integrated line filter (optional)
- Integrated line reactor
- Integrated brake chopper
- Evaluation of motor temperature detector
Optional functions
- Communication modules for field bus network, e.g. PROFIBUS, PROFINET
- Extension modules to add control inputs and outputs as well as speed encoder evaluation
- External PTC thermistor evaluation
- Keypad terminal for parameter programming and commissioning
- Drive Composer (Pro) PC software for convenient parameter programming and diagnosis as well as visualisation
Software
- Control of cylindrical and conical-rotor motors
- Automatic parameter identification
- Direct torque control with/without rotary encoder for fast compensation when loads change
- Speed and torque monitoring
- Special function for smooth acceleration
- Load-sway damping
- Setpoint memory, setpoint steps (4-stage) and bipolar/unipolar analogue control modes
- Load-dependent speed for hoist operation with field weakening (ProHub)
- Load spectrum calculation (also depending on the speed)
- Speed or torque control freely selectable
- Master/slave function, electronic gearbox and closed-loop control
- Intelligent braking logic system for brake monitoring by evaluation of the corresponding feedback contacts
- Comprehensive diagnosis functions
Dedrive Pro 880
Dedrive Compact STO
Outstanding drive performance combined with maximum functionality
Our Dedrive Compact STO frequency inverters offer outstanding performance and satisfy even the most demanding drive requirements with ease. They feature not only tried-and-tested reliability and functionality, but also:
- high overload capability
- simple operation
- control characteristics for travel and lifting applications independent of the load
- can already be used for 0.75 kW recommended motor shaft output
- highly cost-effective thanks to low wear on the drive system
- application modules are also available with Dedrive Compact STO
Developed by a crane manufacturer for crane manufacturers: Dedrive Pro 880 offers completely configured software solutions and minimises engineering and design costs with its Demag CraneControl system
Dedrive Compact STO frequency inverters are used for starting-and-stopping applications and operating sequences to meet a wide variety of requirements for series AC motors with motor shaft outputs from 0.75 to 110 kW.
Outstanding performance and efficiency
- Reliable operation also under harsh conditions
- Fast commissioning
- Equipped with line filters as standard (up to size 3, 17A)
- Numerical and graphic actual-value analysis
- Low drive system wear compared to line-fed motors
Safety
- High overload capability: up to 10 seconds/factor of 2 every 10 minutes, also for very high peak loads
- Protection against unexpected start-up thanks to Safe Torque Off (STO) safety function
- Rugged design: low susceptibility to vibration
Individual configurations
- Programmed parameters for solutions to meet specific requirements
Dedrive Compact STO frequency inverters offer outstanding hardware and software characteristics.
Hardware
- Output currents from 2.4 to 210 A
- Nominal voltage range from 380 to 480 V +10/-15%
- Overload capability: factor of 1.5 for 60 seconds, factor of 2.0 for 10 seconds (except for DIC-4-040)
- Short-circuit/earth-fault resistant motor circuit output
- CE and cULus listed
- System bus for master/slave applications
- Integrated line filter up to size 3
- Integrated brake chopper
- Plug-in control terminals
- Evaluation of motor temperature detector
- STO – Safe Torque Off to EN 61800-5-2 meets the requirements of Cat. 3, PL d to EN ISO 13849-1 and SIL 2 to IEC 61508
- External 24 V supply
Options
- Keypad unit for parameter programming and commissioning
- Communications modules for field bus network
- Universal extension modules to add control inputs and outputs, as well as PTC thermistor and speed encoder evaluation
- Parcom Compact PC software for convenient parameter programming and diagnosis
- Filters, line reactors, braking resistors
Software
- Control of cylindrical and conical-rotor motors
- Parameter identification when the motor is at standstill
- Field-oriented control with/without speed encoder for highly dynamic speed control
- Speed monitoring
- Rounding function for smooth acceleration
- Four switchable data sets (e.g. control, ramp or motor switchover)
- Control modes with pre-programmed input assignment: setpoint memory, setpoint steps (2 to 8-stage) and analogue control modes
- Motor potentiometer via keypad unit
- Brake release monitoring
- Programmable joystick characteristics
- Load-dependent speed for hoist operation with field weakening (ProHub)
- Load spectrum calculation
- Freely programmable logic functions with digital and analogue links
- Speed or torque control freely selectable
- Simple positioning function via defined position path
- Master/slave function, electronic gearbox and closed-loop control
- Average and peak value memory for various process variables
- Comprehensive diagnosis functions
- Positioning – 32 data sets for destination positions and travel profiles