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Instructions on operation
·Be sure to install the surface cover before turning on the power (closed). Do not remove the cover while
power to the inverter is turned on.
Electric shock may occur.
·Do not operate switches with wet hands, as electric shock may result.
·When the retry function is selected, the inverter may restart automatically after tripping. (Design the
machine to ensure personal safety in the event of restart)
Accident may result.
·When the torque limiting function is selected, operating conditions may differ from preset conditions
(acceleration/deceleration time or speed). In this case, personal safety must be assured.
Accident may result.
·As the STOP key is effective only when a function setting has been established, install an emergency
switch independently, and when an operation via the external signal terminal is selected, the STOP key
on the KEYPAD panel will be disabled.
Accident may result.
·As operations start suddenly if alarm is reset with a running signal input, confirm that no running signal is
input before resetting alarm.
Accident may result.
·When an alarm is activated, the motor coasts. If the motor needs to be stopped in such a case, install a
brake to the machine with the motor.
Accident may result.
·If AUTO RESTART is selected in the restart mode after momentary power failure (function code F14), the
inverter restarts automatically starting the motor rotation when the power is recovered.
Accident may result.
·When the tuning (function code H01) is started, the motor, machine or equipment starts and stops
repeatedly. Ensure safety before performing tuning.
Accident may result.
·If the user set the function codes wrongly or without completely understanding this user’s manual, the
motor may rotate with a torque or at a speed not permitted for the machine.
Accident or injury may result.
·Do not touch inverter terminals when energized even if inverter has stopped.
Electric shock may result.
·Do not start or stop the inverter using the main circuit power.
Failure may result.
·Do not touch the heat sink or braking resistor because they become very hot.
Burns may result.
·As the inverter can set high speed operation easily, carefully check the performance of motor or machine
before changing speed settings.
Injury may result.
·Do not use the inverter braking function for mechanical holding.
Injury may result.
·During pre-excitation, the speed adjuster does not function and the motor may be rotated by load
disturbance. When using pre-excitation, therefore, also use the mechanical brake.
Injury may result.
·If improper data is set at the function code related with speed adjuster as in the case of setting high gain
abruptly, the motor may hunt.
Injury may result.