Pumps Modular Variable Frequency Drive Inverter With Variable Speed Drive

Certification:CE
Model Number:MICROMASTER 420
Minimum Order Quantity:1 PCS
Delivery Time:2-15 days
Payment Terms:T/T, , Western Union,Paypal,, MoneyGram,, L/C
Place of Origin:Germany
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Address: Liushi Town,Yueqing City,Zhejiang Province,China
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Product Details

MICROMASTER 420 Types Variable Frequency Drive Inverter Pumps Inverter

Application

The MICROMASTER 420 inverter is suitable for a variety of variable-speed drive applications.
It is especially suitable for applications for pumps, fans and 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 supply-voltage range enables it to be used all over the world.

Design

The MICROMASTER 420 has a modular design. The operator panels and communication modules can be easily exchanged without requiring any tools.

Main characteristics
  • Easy, guided start-up
  • Modular construction allows maximum configuration flexibility
  • Three fully programmable isolated digital inputs
  • One scalable analog input (0 V to 10 V) 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 frequency, adjustable (observe derating if necessary)
  • Complete inverter and motor protection
Mechanical features
  • Modular design
  • Operating temperature: -10 °C to +50 °C (+14 °F to +122 °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
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 mains failure or fault
  • Internal PI controller for simple process control
  • 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 a high resolution 10-bit analog input
  • 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)

Technical specifications

Technical data

MICROMASTER 420

Mains voltage and power ranges


200 V to 240 V 1 AC ±10 %0.12 kW to 3 kW
200 V to 240 V 3 AC ±10 %0.12 kW to 5.5 kW
380 V to 480 V 3 AC ±10 %0.37 kW to 11 kW
Power frequency47 Hz to 63 Hz
Output frequency0 ... 650 Hz, (limitation to 550 Hz in production to comply with legal requirements) 1)
Power factor≥ 0.95
Inverter efficiency96 % to 97 % (Further information is available on the Internet at:
Overload capabilityOverload current 1.5 x rated output current (i.e. 150 % overload capability) for 60 s, cycle time 300 s
Inrush currentLess than rated input current
Control methodLinear V/f characteristic; quadratic V/f characteristic; multipoint characteristic (programmable V/f characteristic); flux current control (FCC)

Pulse frequency


16 kHz (standard with 230 V 1/3 AC)
4 kHz (standard with 400 V 3 AC)
2 kHz to 16 kHz (in 2 kHz steps)
Fixed frequencies7, programmable
Skip frequency ranges4, programmable

Setpoint resolution


0.01 Hz digital
0.01 Hz serial
10 bit analog
Digital inputs3 fully programmable isolated digital inputs; switchable PNP/NPN
Analog input1, for setpoint or PI controller (0 V to 10 V, scaleable or for use as 4th digital input)
Relay outputs1, programmable, 30 V DC/5 A (resistive load); 250 V AC/2 A (inductive load)
Analog output1, programmable (0 mA to 20 mA)
Serial interfacesRS-485, optional RS-232
Motor cable lengths
  • without output choke

max. 50 m (shielded)
max. 100 m (unshielded)
  • with output choke
see variant dependent options

Electromagnetic compatibility


Inverter available with internal EMC filter Class A; available as options are EMC filters to EN 55 011, Class A or Class B
BrakingDC braking, compound braking
Degree of protectionIP20
Operating temperature–10 °C to +50 °C (+14 °F to +122 °F)
Storage temperature–40 °C to +70 °C (–40 °F to +158 °F)
Relative humidity95 % (non-condensing)
Installation altitudeUp to 1000 m above sea level without derating
Standard SCCR
(Short Circuit Current Rating) 2)
100 kA

China Pumps Modular Variable Frequency Drive Inverter With Variable Speed Drive supplier

Pumps Modular Variable Frequency Drive Inverter With Variable Speed Drive

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