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