Overview
“•The “”F700P inverter for fans and pumps”” can drive both general-purpose motors
(3-phase induction motors) and IPMmotors. The F700P could be thesolution to your energy saving need”
(1) Energy saving with speed con
” The consumed power of a variable-torque load, such as fans, pumps, and blowers, is proportional to the cube of its rotation speed.
This means that controlling the rotation speed to adjust the air volume
can lead to energy savings”
(2) Energy saving with Optimum excitation control (General-purpose motors)
” Optimum excitation control continuously adjusts the excitation
current to an optimum level to provide the highest motor efficiency, and that leads to substantial energy savings. ”
(3) Energy saving with IPM motors
•High efficiency achieved with IPM motors
The IPM motors that have permanent magnets embedded in their rotors
are even more efficient than the high-performance energy-saving motors.
(4)Various Functions for Fans and Pumps
(1) Variable-torque acceleration/deceleration pattern
Variable torque loads suchas fans and blowers can be accelerated/decelerated in a short period of time.
(2) Full-scale PID function
To save energy in low-speed operation: PID output shutoff (sleep) function
To shorten the start-up time of PID control: PID automatic switchover function
For air conditioning applications: Forward/reverse rotation switching by external signals
To use various types of detectors: PID set point and measured value outputs in
voltage (0 to 5V / 0 to 10V) and current (4 to 20mA)
(3) Complete I/O terminals come standard
Contact input (12 terminals), analog input (3 terminals), open
collector output (5 terminals), relay output (2 terminals), analog
output, and pulse train output come standard. Various functions
can be assigned to these terminals.
Voltage and current are selectable for analog input.
ON/OFF status of the signals inputted to or outputted from th I/O terminals can be displayed on the operation panel.
(4) Automatic acceleration/deceleration time switchover
” A frequency where the acceleration/deceleration time is changed can be pre-set; an
external switch is not required to switch the time setting. This function is especially
useful for an operation thatrequires high torque in alow speed operation”
(5) Password function
Parameter writing/reading can be restrictedwith a 4-digit password.
This function is useful to prevent parameter values from being rewritten by misoperation
(6) Keep running during instantaneous power failure
Automatic restart after instantaneous power failure function / flyinstart function.
After an instantaneous power failure, the operation is re-startable from the coasting motor speed.
Even if the rotation direction has been forcibly reversed, the operation can be
smoothly restarted in the original direction.
Power failure time deceleration-to-stop function.
During operations of fans and blowers, the operation is continued at an
instantaneous power failure without the motor coasting
(7) Energy saving effect checked at a glance
The energy saving effect can be checked on the energy saving monitor.
The measured output power amount can be output in pulses.
