The inverter is especially characterized by its customer-oriented performance and ease-of-use. Its large mains voltage range enables it to be used all over the world.

Design

The MICROMASTER 440 has a modular design. The operator panels and the modules can be easiliy exchanged.

International standards

  • The MICROMASTER 440 inverter complies with the requirements of the EU low-voltage guideline.
  • The MICROMASTER 440 inverter has the CE marking.
  • Acc. to UL and c UL certified
  • c-tick

Main characteristics

  • Easy, guided start-up
  • Modular construction allows maximum configuration flexibility
  • Six programmable isolated digital inputs
  • Two scaleable analog inputs (0 V to 10 V, 0 mA to 20 mA) can also be used as a 7th/8th digital input
  • Two programmable analog outputs (0 mA to 20 mA)
  • Three programmable relay outputs (30 V DC/5 A, resistive load; 250 V AC/2 A, inductive load)
  • Low-noise motor operation thanks to high pulse frequencies, adjustable (observe derating if necessary)
  • Protection for motor and inverter

Options (overview)

  • EMC filter, Class A/B
  • LC filter and sinusoidal filter 
  • Line commutating chokes
  • Output chokes
  • Gland plates
  • Basic Operator Panel (BOP) for parameterizing the inverter
  • Plain text Advanced Operator Panel (AOP) with multilanguage display
  • Plain text Asian Advanced Operator Panel (AAOP) with Chinese and English display
  • Plain text Cyrillic Advanced Operator Panel (CAOP) with Cyrillic, German and English display 
  • Communication modules
    • PROFIBUS
    • DeviceNet
    • CANopen
  • Pulse encoder evaluation module
  • PC connection kits
  • Mounting kits for installing the operator panels in the control cabinet doors
  • PC start-up tools, executable under Windows 98/NT/2000/XP Professional
  • TIA integration with Drive ES

Mechanical features

  • Modular design
  • Operating temperature
    • 0.12 kW to 75 kW: -10 °C to +50 °C (+14 °F to +122 °F)
    • 90 kW to 200 kW: 0 °C to +40 °C (+32 °F to +104 °F)
  • Compact housing as a result of high power density
  • Easy cable connection, mains and motor connections are separated for optimum electromagnetic compatibility
  • Detachable operator panels
  • Screwless control terminals on detachable I/O board

Performance features

  • Latest IGBT technology
  • Digital microprocessor control
  • High-quality Vector Control system
  • Flux Current Control (FCC) for improved dynamic response and optimized motor control
  • Linear V/f characteristic
  • Quadratic V/f characteristic
  • Multipoint characteristic (programmable V/f characteristic)
  • Torque control
  • Flying restart
  • Slip compensation
  • Automatic restart following mains failure or fault
  • User-definable function blocks for logic and arithmetic operations
  • Kinetic buffering
  • Positioning ramp down
  • High-grade PID controller for simple internal process control (autotuning)
  • Programmable acceleration/deceleration, 0 s to 650 s
  • Ramp smoothing
  • Fast Current Limit (FCL) for trip-free operation
  • Fast, repeatable digital input response time
  • Fine adjustment using two high-resolution 10-bit analog inputs
  • Compound braking for controlled rapid braking
  • Integrated brake chopper (only for 0.12 kW to 75 kW inverters)
  • Four skip frequencies
  • Removable “Y” capacitor for use on IT mains supplies (with non-grounded mains supplies, the “Y” capacitor must be removed, and an output choke installed)

Protection features

  • Overload capability
    • CT mode
      0.12       kW to 75 kW:
      Overload current 1.5 x rated output current (i.e. 150 % overload capability) for 60 s, cycle time 300 s,
      and 2 x rated output current (i.e. 200 % overload capability) for 3 s, cycle time 300 s
      90       kW to 200 kW:
      Overload current 1.36 x rated output current (i.e. 136 % overload capability) for 57 s, cycle time 300 s,
      and 1.6 x rated output current (i.e. 160 % overload capability) for 3 s, cycle time 300 s
    • VT mode
      5.5       kW to 90 kW:
      Overload current 1.4 x rated output current (i.e. 140 % overload capability) for 3 s,
      and 1.1 x rated output current (i.e. 110 % overload capability) for 60 s, cycle time 300 s
      110       kW to 250 kW:
      Overload current 1.5 x rated output current (i.e. 150 % overload capability) for 1 s,
      and 1.1 x rated output current (i.e. 110 % overload capability) for 59 s, cycle time 300 s
  • Overvoltage/undervoltage protection
  • Inverter overtemperature protection
  • Special direct connection for PTC or KTY to protect the motor
  • Earth fault protection
  • Short-circuit protection
  • I 2 t motor thermal protection
  • Locked motor protection
  • Stall prevention
  • Parameter interlock