Dimensional drawings

Circuit diagrams

Assets

Application

The MICROMASTER 430 inverter is suitable for a variety of variable-speed drive applications. Its flexibility provides for a wide spectrum of applications. It is especially suitable for use with industrial pumps and fans.

The inverter is especially character­ized by its customer-oriented performance and ease-of-use. It has more inputs and outputs than the MICROMASTER 420, an optimized operator panel with manual/automatic switchover, and adapted software functionality.

Design

The MICROMASTER 430 inverter has a modular design. The operator panels and communication modules can be easily exchanged.

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
• Control of up to three additional drives on the basis of PID control (motor staging)
• Operation of drive directly on mains (with external bypass circuit)
• Low-energy mode
• Detects dry run of pumps (belt failure detection)

Options (overview)

• Line commutating chokes
• Output chokes
• LC filter and sinusoidal filter 
• Gland plates
• Basic Operator Panel 2 (BOP-2) for parameterizing the inverter
• Communication modules
  • PROFIBUS
  • DeviceNet
  • CANopen
• 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/ME/XP Professional
• TIA integration with Drive ES

International standards

• The MICROMASTER 430 inverter complies with the requirements of the EU low-voltage guideline.
• The MICROMASTER 430 inverter has CE marking.
• Acc. to U_L and c U_L certified
• c-tick

Mechanical features

• Modular design
• Operating temperature: –10 °C to +40 °C (+14 °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
• 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)
• Flying restart
• Slip compensation
• Automatic restart facility following power failure or fault
• Energy saving mode (stopping e.g. of a pump at low speeds)
• Motor staging (connection and disconnection of additional motors, use of inverter as control drive in a pump cascade)
• Manual/automatic mode
• Load torque monitoring (belt failure detection; detects dry run of pumps)
• High-grade internal PID controller for simple process control
• Programmable acceleration/deceleration times, 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 rapid controlled braking
• Four skip frequencies
• Removable “Y” capacitor for use on IT systems (with non-grounded mains supplies, the “Y” capacitor must be removed, and an output choke installed)

Protection features

• Overload capability
  • 7.5 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
• I²t motor thermal protection
• Locked motor protection
• Stall prevention
• Parameter interlock