Operation panel or
Additional display by
the parameter unit
Tab. A-3: Common specifications (2)
The braking torque indicated is a short-duration average torque (which varies with motor
loss) when the motor alone is decelerated from 60Hz in the shortest time and is not a
continuous regenerative torque. When the motor is decelerated from the frequency higher
than the base frequency, the average deceleration torque will reduce. Since the inverter
does not contain a brake resistor, use the optional brake resistor when regenerative energy
is large. A brake unit (FR-BU2) may also be used.
This protective function is available with the three-phase power input specification model
This protective function does not function in the initial status.
When using the inverters at the ambient temperature of 40°C or less, the inverters can be
installed closely attached (0cm clearance).
The product may only be exposed to the full extremes of this temperature range for short
periods (e.g. during transportation).
A - 4
You can select from among output frequency, motor current (steady), output voltage, frequency
setting, cumulative energization time, actual operation time, motor torque, converter output volt-
age, regenerative brake duty, electronic thermal relay function load factor, output current peak
value, converter output voltage peak value, motor load factor, PID set point, PID measured value,
PID deviation, inverter I/O terminal monitor, I/O terminal option monitor, output power, cumula-
tive power, motor thermal load factor, and inverter thermal load factor.
Fault definition is displayed when the protective function is activated,
the output voltage/current/frequency/cumulative energizing time right before the protection func-
tion was activated and the past 8 alarm definitions are stored.
Output voltage/current/frequency/cumulative energization time immediately before the fault
Operation guide/trouble shooting with a help function
Overcurrent during acceleration, overcurrent during constant speed, overcurrent during
deceleration, overvoltage during acceleration, overvoltage during constant speed,
overvoltage during deceleration, inverter protection thermal operation, motor protection thermal
operation, heatsink overheat, input phase failure
at start, output phase failure, external thermal relay operation
internal board fault, PU disconnection, retry count excess
inrush resistance overheat, communication error, analog input error, USB communication error,
Fan alarm (FR-E720S-050 or more, FR-E740-040 or more), overcurrent stall prevention, overvolt-
age stall prevention, PU stop, parameter write error, regenerative brake prealarm
electronic thermal relay function prealarm, maintenance output
−10°C to +50°C (non-freezing)
For indoor use only, avoid environments containing corrosive gases, install in a dust-free location.
Max. 5.9m/s² (JIS 60068-2-6) or less at 10 to 55Hz (directions of X , Y and Z axes)
, output side earth (ground) fault overcurrent
, option fault, parameter error,
, CPU fault, brake transistor alarm,
brake sequence error 4 to 7
−20°C to +65°C
Max. 90% (non-condensing)
Max. 1000m above sea level