A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Fuji FRENIC 5000 Series Variable Frequency Drive
for general industrial machines
New Surplus
Benefits:
Dynamic torque-vector control Dynamic torque-vector control system
performs high-speed calculation to determine
the required motor power for the load
status. Our key technology is optimal
control of voltage and current vectors for maximum output torque.
Reduced motor wow at low speed Motor wow at low speed (1Hz) reduced to
less than 1/2 of that achieved by
conventional inverters, with the dynamic
torque-vector control system, in
combination with the Fuji’s unique digital
AVR.
New on-line tuning sytem On-line tuning to continuously check for
variation of motor characteristics during
running for high-precision speed control.
Environment-friendly features Provided with low-noise control power
supply systems which minimize noise
interference on peripheral devices such as
sensors.
Advanced, convenient features 16-step speed with timer control, rotating motor
pick-up control for conveyance machinery
Automatic energy-saving operation, PID control,
cooling fan on/off control, line/
inverter changeover operation for fans and pumps
Rotating motor pick-up control:
Restarts motor without any shocks, by detecting motor speed
where motor is coasting after momentary power failure occurs
Communications features Equipped with RS-485 interface as standard.
Universal DI/DO : Monitors digital I/O signal
status and transmits to a host controller, helping
to simplify factory automation.
Intelligent Keypad panel
Copy function: Easily copies
function codes and data to other
inverters.
Jogging (inching) operation from the Keypad
or external signal
Remote operation using optional extension
cable (not included)
Protective functions, maintenance
Motors with various characteristics
can be used by setting thermal
time constant for the electronic
thermal overload protection.
Input phase loss protective function protects
the inverter from damage caused by disconnection
of power supply lines
Motor is protected with a PTC thermistor
Other
Side-by-side mounting (up to 30HP) saves
space when inverters are installed in a panel
The uniform height (10.24inch(260mm)) of
products (up to 10HP) makes it easy to design
panels.
User-definable control terminals: Digital input (9
points), transistor output (4points), and relay
contact output (1point).
Active drive feature: Performs prolonged
acceleration at reduced torque, monitoring the
load status to prevent tripping.
Stall prevention function is provided as standard.
Active or inactive can be also selected
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