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4. Specifications
4.2 Common specifications
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4.2
Common specifications
Con
tro
l
Control method
Soft-PWM control / High carrier frequency PWM control
Induction
motor
Selectable among V/F control, Advanced magnetic flux vector control, and Real sensorless vector
control
PM motor
(PM sensorless vector control)
Output
frequency
range
Induction
motor
0.2 to 590 Hz (The upper-limit frequency is 400 Hz under Advanced magnetic flux vector control and
Real sensorless vector control.)
PM motor
0.2 to 400 Hz (not operable at maximum motor frequency or higher)
Frequency
setting and
resolution
Analog input
0.015 Hz /60 Hz at 0 to 10 V / 12 bits (terminals 2 and 4)
0.03 Hz /60 Hz at 0 to 5 V / 11 bits or 0 to 20 mA / 11 bits (terminals 2 and 4)
Digital input
0.01 Hz
Frequency
accuracy
Analog input
Within ±0.2% of the maximum output frequency (25°C ±10°C)
Digital input
0.01% or less of the set output frequency
Voltage/frequency
characteristics
Base frequency can be set from 0 to 590 Hz. Constant-torque/variable-torque pattern can be selected
(with induction motor only).
Starting
torque
Induction
motor
Advanced magnetic flux vector control: 150% at 0.5 Hz, Real sensorless vector control: 200% at 0.3
Hz (0.4K to 3.7K), 150% at 0.3 Hz (5.5K or higher)
PM motor
50%
Torque boost
Manual torque boost (induction motor only)
Acceleration/deceleration
time setting
0 to 3600 s (acceleration and deceleration can be set individually), linear or S-pattern acceleration/
deceleration modes are available.
DC injection
brake
Induction
motor
Operation frequency (0 to 120 Hz), operation time (0 to 10 s), operation voltage (0 to 30%) variable
PM motor
Operation time (0 to 10 s) variable. Operating voltage (operating current) fixed.
Stall prevention operation
level
Operation current: 0 to 220% variable, with selectable availability of the function
Torque limit level
Torque limit value can be set (0 to 400% variable).
Op
eratio
n
Frequency
setting
signal
Analog input
Terminals 2 and 4: 0 to 10 V / 0 to 5 V / 4 to 20 mA (0 to 20 mA)
Digital input
Input using the operation panel.
Input of four-digit BCD (binary-coded decimal) or 16-bit binary (when the option FR-A8AX E kit is
installed).
Start signal
Forward and reverse rotation or start signal automatic self-holding input (3-wire input) can be
selected.
Input signal (standard model:
7, Ethernet model: 2)
Low-speed operation command, Middle-speed operation command, High-speed operation command,
Output stop, Forward rotation command, Reverse rotation command, Inverter reset
The signal to be input can be changed using
Pr.178 to Pr.184 (Input terminal function selection)
.
Operational function
Maximum and minimum frequency settings, multi-speed operation, acceleration/deceleration pattern,
thermal protection, DC injection brake, starting frequency, JOG operation, output stop (MRS), stall
prevention, regeneration avoidance, frequency jump, rotation display, automatic restart after
instantaneous power failure, remote setting, automatic acceleration/deceleration, retry function,
carrier frequency selection, fast-response current limit, forward/reverse rotation prevention, operation
mode selection, slip compensation, droop control, speed smoothing control, traverse, auto tuning,
applied motor selection, RS-485 communication
, Ethernet communication
, PID control, easy
dancer control, cooling fan operation selection, stop selection (deceleration stop/coasting), power
failure time deceleration-to-stop function, stop-on-contact control, PLC function, life diagnosis,
maintenance timer, current average monitor, multiple rating, speed control, torque control, torque
limit, safety stop function
O
u
tput
sign
al
Open collector output (2)
Relay output (1)
Inverter running, Up to frequency, Fault (The open collector output terminals are provided only with
the standard model.)
The signal to be output can be changed using
Pr.190 to Pr.192 (Output terminal function
selection)
.
Pulse train output
(FM type inverter)
1440 pulses/s at full scale, 2400 pulses/s at maximum.
Analog output
(AM type inverter)
-10 to +10 V / 12 bits
