SIEMENS Inverter MICROMASTER 430

The MICROMASTER 430

The MICROMASTER 430s are a range of 3AC-frequency inverters for controlling the speed of three phase AC motors. The various models available range from the 7,5 kW input to the 250 kW input.
The MICROMASTER 430 is especially well suited for use with pumps and ventilators when used with its factory set functions and settings.
The inverters are microprocessor-controlled and use state-of-the-art Insulated Gate BipoIar Transistor (IGBT) technology. This makes them reliable and versatile. A special pulse-width modulation method with selectable Pulse frequency permits quiet motor operation. Comprehensive protective functions provide excellent inverter and motor protection.

Options (overview)

■ Line commutating chokes
■ Output chokes
■ LC filter
■ Gland plates
■ Basic Operator Panel 2 (BOP-2) for parameterizing the inverter
■ Communication modules
– PROFIBUS
– DeviceNet
– CANopen

Applications

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

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

International standards

■ The MICROMASTER 430 inverter complies with the requirements of the EU lowvoltage guideline
■ The MICROMASTER 430 inverter has the > marking

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 terminal strip on detachable I/O board.

Technical specifications

Technical data

MICROMASTER 430

Mains voltage and power ranges

380 V to 480 V 3 AC  ±10 %

7.5 kW to 250 kW (variable torque)

Power frequency

47 Hz to 63 Hz

Output frequency

for inverter 7.5 kW to 90 kW

0 … 650 Hz, (limitation to 550 Hz in production to comply with legal requirements) 1)

for inverter 110 kW to 250 kW

0 Hz to 267 Hz

Power factor

≥ 0.95

Inverter efficiency

for inverter 7.5 kW to 90 kW

96 % to 97 %

for inverter 110 kW to 250 kW

97 % to 98 %

(Further information is available on the Internet at:
Overload capability

for inverter 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

for inverter 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 60 s, cycle time 300 s

Inrush current

less than rated input current

Control method

linear V/f characteristic; quadratic V/f characteristic; multipoint characteristic (programmable V/f characteristic); flux current control (FCC); energy saving mode

Pulse frequency

for inverter 7.5 kW to 90 kW

4 kHz (standard)
2 kHz to 16 kHz (in 2-kHz-steps)

for inverter 110 kW to 250 kW

2 kHz (standard)
2 kHz to 4 kHz (in 2-kHz-steps)

Fixed frequencies

15, programmable

Skip frequency ranges

4, programmable

Setpoint resolution

0.01 Hz digital
0.01 Hz serial
10 bit analog

Digital inputs

6 fully programmable isolated digital inputs; switchable PNP/NPN

Analog inputs

2 programmable analog inputs

  • 0 V to 10 V, 0 mA to 20 mA and –10 V to +10 V (AIN1)
  • 0 V to 10 V and 0 mA to 20 mA (AIN2)
  • both can be used as 7th/8th digital input

Relay outputs

3, programmable
30 V DC/5 A (resistive load),
250 V AC/2 A (inductive load)

Analog outputs

2, programmable (0/4 mA to 20 mA)

Serial interfaces

RS-485, option RS-232

Motor cable length

for inverter 7.5 kW to 90 kW

Without output choke

max. 50 m (shielded)
max. 100 m (unshielded)

With output choke

See variant dependent options

for inverter 110 kW to 250 kW

Without output choke

max. 200 m (shielded)
max. 300 m (unshielded)

With output choke

See variant dependent options

Electromagnetic compatibility

for inverter 7.5 kW to 90 kW

Inverter with internal filter Class A available

for inverter without filter

7.5 kW to 15 kW

EMC filter Class B to EN 55 011 available as an option

18.5 kW to 90 kW

EMC filter Class B from Schaffner available as an option

110 kW to 250 kW

EMC filter Class A available as an option

Braking

DC braking, compound braking

Degree of protection

IP20

Operating temperature range

for inverter 7.5 kW to 90 kW

-10 °C to +40 °C (+14 °F to +104 °F)

for inverter 110 kW to 250 kW

0 °C to +40 °C (+32 °F to +104 °F)

Storage temperature

-40 °C to +70 °C (-40 °F to +158 °F)

Relative humidity

95 % (non-condensing)

Installation altitude

for inverter 7.5 kW to 90 kW

up to 1000 m above sea level without derating

for inverter 110 kW to 250 kW

up to 2000 m above sea level without derating

Standard SCCR
(Short Circuit Current Rating) 2)

FSC: 100 kA
FSD, FSE, FSF, FSFX, FSGX: 65 kA

Protection features for

undervoltage, overvoltage, overload, earth faults, short-circuits, stall prevention, locked motor protection, motor overtemperature, inverter overtemperature, parameter change protection

Conformity with standards

for inverter 7.5 kW to 90 kW

 UL, cUL, CE, c-tick

for inverter 110 kW to 250 kW

UL available soon, cULavailable soon, CE

CE marking

Conformity with low-voltage directive 73/23/EEC