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• Lower capital cost
• Smaller installed footprint
• Less maintenance
• Reduced spare parts inventory
• Start multiple motors one-by-one
and transfer them on utility lines
• Run the last motor continuously on
VFD at variable speed
• Increased energy savings
• Standard product customizable
with pre-engineered options
• IP42 enclosure
• Step-down transformer for
higher input voltages
• Input switchgear
• Redundant fan
• Multiple motor operation
• Additional I/Os
• Full voltage bypass
• Communication protocols
• Other customer-specific options
The MV4 Series drive provides six-cycle
power loss ride-through and keeps the
process running without tripping.
The MV4 Series operates continuously
and provides available power to the
motor at a lower input supply voltage
(up to 70% of nominal voltage).
The MV4 Series offers the ability to
catch and take control of a spinning
load without any damaging torque
impacting the equipment if started
while the load is already spinning.
• Standard control interface offers
digital inputs/outputs and analog
inputs/outputs as standard. Each
of these inputs/outputs can be
programmed to a variety of different
functions for flexibility.
• Touchscreen operator interface
allows for quick, user-friendly
programming. Screens for fault
parameters and meters are user
configurable.
The MV4 Series drive can be
programmed for up to three critical
frequency bands and ride-through
these without any resonance issues.
Most centrifugal pump and fan
applications are sized for worst-case
operating conditions and typically
operate well below the full speed and
full power point.
The MV4 Series drive is supplied with
a user-configurable economy-mode
setting for applications larger than
single channel 1250 HP/1 MW. The VFD
control initiates the standby of parallel
power sections that are not required
to meet the operating load conditions,
increasing the overall efficiency and
reducing power consumption.
For example, if a fan is operating at
no more than 88% of the rated speed,
the load requires 68% or less of the
rated power, allowing the drive to
conserve energy by placing one power
channel in standby.
Process control benefits MV4 Series drive options
Flying start
into a spinning load
À la carte option packaging
Up and down
synchronous transfer
One drive for multiple motors
Ease of set-up & diagnostics
Under-voltage operation
Power dip ride-through Critical speed avoidance
Economy-mode feature
11GE I MV4 Series10 GE I MV4 Series