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 »
Hitachi SJ200 Series Variable Frequency Drive
Compact, high-torque, full-featured drive
New Surplus
BENEFITS:
High starting torque of 200%
or greater at 1Hz - Newly developed technology - Intelligent Sensorless Vector Control - cope
provides optimal high torque without motor tuning.
Trip avoidance function - Advanced over-current trip avoidance function for acceleration, and
over-voltage trip avoidance function for deceleration.
Reduced trip likelihood means improved drive system reliability and
availability.
Removable Control Terminal - Connector type control terminal minimizes control terminal
wiring when performing field maintenance.
Removable Keypad - Keypad (digital operator) can be connected via a cable.
Remote operation ready.
Improved PID control - Reverse PID function changes the sign of
the deviation value which is the difference
between target and feedback values
Output Timing
and Logic functions - Output terminals can be assigned logical operators
AND, OR and XOR with RUN, AL and so on.
ON and OFF delay times are settable for each output
terminal. Allows for more flexible system design.
Analog setpoint
calculate functions - An offset frequency can be added to or subtracted
from the output frequency when ADD terminal is ON.
For example, if output frequency setting is 40Hz and
offset frequency is 5Hz, output frequency becomes
45Hz (or 35Hz) when ADD terminal is ON.
Versatile Functions - Pure analog monitor output (8-bit, 0-10V DC) - External thermistor terminal (PTC) - Cooling-fan on/off - Side-by-side installation - Regenerative braking circuit - Instantaneous power failure recovery - Second motor setting - Over-voltage suppression at deceleration - 3-wire control - RS-485 Serial port with Modbus®-RTU - Analog input selection - Second acceleration/deceleration setting - Jogging - Auto-carrier frequency reduction - Unattended start protection (USP) - Analog input wire-break detection
Global Performance - Conformity to global standards.
CE, UL, c-UL and c-Tick approvals.
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