8.2 Common specifications
Output frequency range
Speed control range
IPM motor control
DC injection brake
Stall prevention operation level
Input signals (twelve terminals)
Open collector output (five
Relay output (two terminals)
When used with
the FR-A7AY, FR-
Pulse train output
(Max. 2.4kHz: one terminal)
(Max. 10VDC: one terminal)
High carrier frequency PWM control (V/F control)/Optimum excitation control/Simple magnetic flux vector
control/IPM motor control
0.5 to 400Hz
0.015Hz/60Hz (terminal 2 and 4: 0 to 10V/12-bit)
0.03Hz/60Hz (terminal 2 and 4: 0 to 5V/11bit, 0 to 20mA/approx.11-bit, terminal 1: 0 to ±10V/12-bit)
0.06Hz/60Hz (terminal 1: 0 to ±5V/11-bit)
Within ±0.2% of the maximum output frequency (25°C ±10°C)
Within 0.01% of the set output frequency
1:10 under V/F control, 1:15 under Simple magnetic flux vector control, 1:10 under IPM motor control
Base frequency can be set from 0 to 400Hz. Constant-torque/variable-torque pattern or adjustable 5 points V/
F can be selected.
Under Simple magnetic flux vector control and slip compensation: 120% (at 3Hz)
0 to 3600s (acceleration and deceleration can be set individually), linear or S-pattern acceleration/
deceleration modes are available.
General-purpose motor control: Operation frequency (0 to 120Hz), operation time (0 to 10s), operation
voltage (0 to 30%) can be changed.
Operation current level can be set (0 to 150% variable). Whether to use the function or not can be set.
Terminal 2 and 4: 0 to 10V, 0 to 5V, and 4 to 20mA are available.
Terminal 1: -10 to +10V and -5 to 5V are available.
4-digit BCD or 16-bit binary using the setting dial of the operation panel or parameter unit (when used with
the option FR-A7AX)
Forward and reverse rotation or start signal automatic self-holding input (3-wire input) can be selected.
The following signals can be assigned to Pr. 178 to Pr.189 (input terminal function selection): multi-speed
selection, remote setting, second function selection, terminal 4 input selection, JOG operation selection,
automatic restart after instantaneous power failure/flying start, external thermal relay input, inverter run
enable signal (FR-HC/FR-CV connection), FR-HC connection (instantaneous power failure detection), PU
operation external interlock signal, PID control enable terminal, PU-External operation switchover, output
stop, start self-holding selection, forward rotation command, reverse rotation command, inverter reset, PTC
thermistor input, PID forward/reverse action switchover, PU/NET operation switchover, External/NET
operation switchover, command source switchover, DC feeding operation permission, DC feeding cancel,
and PID integral value reset.
Maximum and minimum frequency settings, frequency jump operation, external thermal relay input selection,
polarity reversible operation, automatic restart after instantaneous power failure operation, original operation
continuation at an instantaneous power failure, electronic bypass operation, forward/reverse rotation
prevention, remote setting, second and third function, multi-speed setting, regenerative avoidance, slip
compensation, operation mode selection, PID control, and computer link operation (RS-485)
The following signals can be assigned to Pr.190 to Pr.196 (output terminal function selection): inverter running,
up to frequency, instantaneous power failure/undervoltage, overload warning, output frequency detection,
second output frequency detection, regenerative brake prealarm
alarm, PU operation mode, inverter operation ready, output current detection, zero current detection, PID
lower limit, PID upper limit, PID forward/reverse rotation output, electronic bypass MC1
, electronic bypass MC3
command is ON, during deceleration at occurrence of power failure, during PID control activated, PID
deviation limit, IPM motor control
DC feeding, life alarm, fault output 3 (power-off signal), energy saving average value updated timing, current
average value monitor, fault output 2, maintenance timer alarm, remote output, alarm output, and fault output.
Fault code of the inverter can be output (4-bit) from the open collector.
In addition to above, the following signals can be assigned to Pr.313 to Pr.319 (extension output terminal function
selection): control circuit capacitor life, main circuit capacitor life, cooling fan life, and inrush current limit circuit
life. (Only positive logic can be set to the extension terminals of FR-A7AR.)
The following signals can be assigned to Pr.54 FM terminal function selection(pulse train output) and Pr. 158 AM
terminal function selection (analog output): output frequency, motor current (steady or peak value), output
voltage, frequency setting value, running speed, converter output voltage (steady or peak value), electronic
thermal relay load factor, input power, output power, load meter, reference voltage output, motor load factor,
energy saving effect, regenerative brake duty
Output frequency, motor current (steady or peak value), output voltage, fault display, frequency setting value,
running speed, converter output voltage (steady or peak value), electronic thermal relay load factor, input
power, output power, load meter, cumulative energization time, actual operation time, motor load factor,
cumulative power, energy saving effect, cumulative energy savings, regenerative brake duty
PID measured value, PID deviation, inverter I/O terminal monitor, input terminal option monitor
terminal option monitor
, option fitting status monitor
Fault record is displayed when a fault occurs. Past 8 fault records (output voltage/current/frequency/
cumulative energization time right before the fault occurs) are stored.
Function (help) for operation guide and troubleshooting
, fan fault output, heatsink overheat pre-alarm, inverter running start
, during retry, PID output interruption, pulse train output of output power,
, PID set point, and PID measured value.
, and terminal assignment status
, electronic thermal relay function pre-
, electronic bypass
, PID set point,