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 frequency | 47 Hz to 63 Hz |
Output frequency | 0 ... 650 Hz, (limitation to 550 Hz in production to comply with
legal requirements) 1) |
Power factor | ≥ 0.95 |
Inverter efficiency | 96 % to 97 % (Further information is available on the Internet at:
|
Overload capability | Overload current 1.5 x rated output current (i.e. 150 % 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) |
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 frequencies | 7, programmable |
Skip frequency ranges | 4, programmable |
Setpoint resolution
| 0.01 Hz digital 0.01 Hz serial 10 bit analog |
Digital inputs | 3 fully programmable isolated digital inputs; switchable PNP/NPN |
Analog input | 1, for setpoint or PI controller (0 V to 10 V, scaleable or for use
as 4th digital input) |
Relay outputs | 1, programmable, 30 V DC/5 A (resistive load); 250 V AC/2 A
(inductive load) |
Analog output | 1, programmable (0 mA to 20 mA) |
Serial interfaces | RS-485, optional RS-232 |
Motor cable lengths | |
| max. 50 m (shielded) max. 100 m (unshielded) |
| 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 |
Braking | DC braking, compound braking |
Degree of protection | IP20 |
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 humidity | 95 % (non-condensing) |
Installation altitude | Up to 1000 m above sea level without derating |
Standard SCCR (Short Circuit Current Rating) 2) | 100 kA |
Company Profile
Yueqing Richuang Automation Equipment Co.,Ltd founded in 2011,
position as the sourcing specialist of industrial parts &
equipment. Our Business model are tailored for manufacturers, end
users and seller to order their Maintenance, Repairing and
Operating goods.
We're specializes in distributing and selling of well-know
automation products, which includes Programmable Logic Controllers
(PLC), Low-voltage Controland Distribution products, Industrial testing equipment,frequency
Inverters, Servo system,Sofeware, etc. Our Brands include Schneider, ,ABB, Sick,Mitsubishi,
Omron,IFM, Fluke, and many other Automation Equipment factories and
suppliers.
As a group of companies, We try to provide wisdom, individual
product solution.We are fully responsible all of our products.
Focus to before-after sales service, consult, quality guarantee,
training base on customer benefit and satisfy. With abundant stock
and years of exporting experience, we are looking forward to
receiving your inquiry list!