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Product
Overview
Micromaster
4 is the new Siemens universal drive series for AC motors from 120W up
to 90kW. It distinguishes itself by its new, user-friendly parameter structure,
simple installation and commissioning as well as the fact that it can
be simply integrated into automation projects, e.g. using Drive ES (Drive
Engineering Software), whilst easily accessible terminals and interchangeable
operator panels simplify installation and start-up.
MICROMASTER
420 - General Purpose Standard Drive (0.12kW - 11kW)
- Flux-current
control (FCC) to optimise the voltage applied to the motor at all frequencies
and under all load conditions. This ensures the best possible immunity
to tripping/stalling under load transient conditions and assures the
necessary torque levels whilst minimising the heating effects in the
motor
- Slip
compensation for constant motor speeds under changing load conditions.
- "Flying
re-start" function allows the inverter to be re-connected to motors
which are still spinning after a brief power interruption.
- Freely-programmable
digital Inputs & Outputs
- The
analogue I/O can be flexibly programmed (offset, range, addition to
the digital set point etc.).
- Multi-point
V/f characteristics for use with synchronous motors and reluctance motors
- Sophisticated
dc injection braking and "compound braking" to assure minimum
motor stopping times
- Fast
current limit and Vdc max. controllers guarantee that if the specified
ramp times are too short for the load the drive adapts and does not
trip.
- The
pulse frequency is automatically optimised for low noise operation assuming
that the ambient temperature and load conditions permit.
- Integrated
Kilowatt-hour measurement for energy consumption.
- BICO
(Binary Connector) technology allows the inputs/outputs to be soft-wired
to function blocks in the drive inverter.
- Interchangeable
operator panels which can be simply connected to the drive; either BOP
(Basic Operator Panel) for individual commissioning, or AOP (Advanced
Operator Panel) which can be used to commission and control up to 31
drive inverters. The AOP can save up to 10 data sets. Data sets, saved
in the AOP, can be directly loaded into another drive (after connecting
the AOP) or via the built in Serial link.
MICROMASTER
440 - High Performance Standard Drive (0.12kW - 90kW)
The
MICROMASTER 440 is the latest drive product from the MICROMASTER 4 series.
It has high-performance vector control and many attractive product features
for speed and torque control of induction motors. This makes it ideal
for a wide range of industrial applications.
Additional
features over MICROMASTER 420:
- Frame
sizes A, B, C, D, E, F
- Output
up to 75kW (Constant Torque="CT") or 90kW (Variable Torque="VT")
- High-performance
Vector control (no encoder)
- Encoder
feedback option if required.
- 6
freely programmable digital inputs
- 3
freely programmable digital outputs (relay)
- 2
flexible analogue inputs, which may also be used as digital inputs
- 2
analogue outputs
- Integrated
braking chopper
- Overload
capability, 200% rated current for 3 s, 150% rated current for 60 s
(within 5 min.)
- High
quality integrated PID controller (auto-tuning)
The
MICROMASTER products are naturally CE marked and fulfill the specifications
of the EC Low Voltage Directive and EC EMC Directive. They are also in
compliance with UL and cUL.
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