General technical specifications of the SIPLUS MICROMASTER 420

Application

The SIPLUS MICROMASTER 420 inverter is suitable for a variety of variable-speed drive applications. It is especially suitable for applications with pumps, fans and in conveyor systems.

It is the ideal cost-optimized frequency inverter solution. The inverter is especially characterized by its customer-oriented performance and ease-of-use. Its large range of line voltages enables it to be used all over the world.

Design

The SIPLUS MICROMASTER 420 inverter has a modular design. The operator panels and communication modules can be easily exchanged without the need for any tools.

Main features

• Easy, guided commissioning
• Modular construction allows maximum configuration flexibility
• Three programmable isolated digital inputs
• One analog input (0 to 10 V, scalable) can also be used as a 4th digital input
• One programmable analog output (0 mA to 20 mA)
• One programmable relay output
  30 V DC/5 A, resistive load
  250 V AC/2 A, inductive load
• Low-noise motor operation through high pulse frequencies, adjustable (observe derating if necessary)
• Protection for motor and inverter

Accessories (overview)

• EMC filter, class A/B
• LC filter
• Line commutating reactors
• Output reactors
• Shield connection plates
• Basic Operator Panel (BOP) for parameterizing the inverter
• Plain-text Advanced Operator Panel (AOP) with multiple-language 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
• PC connection kits
• Mounting kits for installing the operator panels in control cabinet doors
• PC commissioning programs under Windows 98/NT/2000/XP Professional
• TIA integration with Drive ES

International standards

• The MICROMASTER 420 inverter fulfills the requirements of the EU low-voltage directive
• The MICROMASTER 420 inverter has CE marking.
• Certified according to u_L and c u_L
• c-tick

Mechanical characteristic data

• Modular design
• Operating temperature -10 °C to +50 °C (+14 °F to +122 °F)
• Compact enclosure due to high power density
• Simple cable connection, separate mains and motor connections for optimum electromagnetic compatibility
• Plug-in operator panels
• Screwless control terminal strip

Performance characteristic data

• Latest IGBT technology
• Digital microprocessor control
• Flux current control (FCC) for enhanced dynamic response and optimized motor control
• U/fcharacteristic linear
• U/fcharacteristic quadratic
• Multipoint characteristic (programmable U/fcharacteristic)
• Flying restart
• Slip compensation
• Automatic restart after mains failure or operational fault
• Simple process control
• Parameterizable ramp-up/ramp-down times 0 s to 650 s
• Ramp smoothing
• Fast current limitation (FCL) for uninterrupted operation
• Fast, reproducible response from the digital inputs
• Precise setpoint input by means of a high-resolution 10-bit analog input
• Compound braking for controlled rapid braking
• 4 skip frequencies
• Removable "Y" capacitor for use on IT networks (with ungrounded networks the "Y" capacitor must be removed and an output reactor installed)

Protection characteristic data

• Overload current 1.5 x rated output current (i.e., 150% overload capability) for 60 s, cycle time 300 s
• Overvoltage/undervoltage protection
• Overtemperature protection for the inverter
• Motor protection using a PTC connection via digital input (possible with supplementary circuit)
• Ground-fault protection
• Short-circuit protection
• Thermal motor protection I²t
• Motor blocking protection
• Stall protection
• Parameter locking