NEMA Type 1, Type 12, or Type 4 may be specified.
the motor to be switched from inverter to across the line
operation. This utilizes two mechanically interlocked contactors
controlled by a front panel mounted inverter/bypass selector
Same as bypass except it
automatically transfers the motor to across the line operation.
Allows for the selection of panel
front speed control or remote station speed control. Includes a
local/remote selector switch, auto/manual selector switch and
terminal connection for remote speed pot and start/stop push
For added protection of equipment and personnel,
electrostatically shielded isolation transformers are available.
The transformers are mounted in Type 1 enclosures and are
available in most common voltages.
Space heater and air conditioners are used to control the
internal environment of the inverter enclosure. Fans and filters
can also be supplied for the industrial environments.
Single Phase Input:
Units may be set up for single phase input to operate a three
Provide additional line impedance for installations where the
incoming power is unstable. Recommended where a drive is powered
by a very large supply transformer.
Voltage or current devices can be supplied to interface with
instrumentation systems. Level, pressure and temperature are
For applications requiring fast deceleration, or applications
with high inertia load, dynamic breaking resistors may be
A number of meters can be provided for customer use. Optional
meters include (digital or analog) frequency, voltmeters,
ammeters, watt meters, elapsed time meters and percent load.
Remote stations can be provided with many different combination
of devices. Standard stations contain an analog frequency meter,
a speed pot and either a run/stop selector switch or stop/start
Includes a run/jog selector switch. When in the jog position,
the start pushbutton is momentary only.
A complete line of process control equipment is available to
simplify even the most complex operations.
Listing is available for all built up units.
Circuit breaker or main switch may be incorporated in a built-up
May be added to minimize harmonic current distortion that can
effect electrical systems.
Solve noise problems to and from equipment by reducing radio
Long Lead Filters:
Used where the length of cable between the drive and motor is
long resulting in damaging voltages.
Many digital communication options are available for interfacing
with various brand name protocols.