Safety precautions
iv
• Electric noises occur from the inverter, motor, and wire, causing peripheral sensors and/or devices to
malfunction. Take a measure against the noises to prevent such malfunctioning.
Otherwise, an accident could occur.
• Leakage current from the EMC filter built-in type inverter is relatively large. Make sure that it is correctly
grounded.
Otherwise, an electric shock could occur.
Operation
• Be sure to mount the front cover before turning the power ON. Do not remove the front cover when the
inverter power is ON.
• Do not operate switches with wet hands.
Otherwise, an electric shock could occur.
• If the "auto-reset" function has been specified, the inverter may automatically restart and run the motor
stopped due to a trip fault, depending on the cause of the tripping. Design the machinery so that human
body and peripheral equipment safety is ensured even when the auto-resetting succeeds.
• The motor may run with different acceleration/deceleration time and/or frequency due to stall prevention
function (current limiting), anti-regenerative control, and overload stop. Design the machinery so that safety
is ensured in such cases.
Otherwise, an accident could occur.
• The
key on the keypad works only when "Enable keypad" is selected with the function code F02.
Provide an emergency stop switch separately. When the run command source is switched from the keypad
with "Link operation selection" (LE), the
key will not work. To enable emergency stop with the key
on the keypad while the external signal terminal is selected as the run command source, select "STOP key
priority" with the function code H96.
• If any of the protective functions has been activated, first remove the cause. Then, after checking that the all
run commands are set to OFF, release the alarm. If the alarm is released while any run commands are set
to ON, the inverter may supply the power to the motor, running the motor.
Otherwise, an accident could occur.
• If you enable the "Restart mode after momentary power failure" (Function code F14 = 3, 4, or 5), the
inverter automatically restarts the motor running when the power is recovered. Design the machinery or
equipment so that human safety is ensured after restarting.
• If the user configures the function codes wrongly without completely understanding this User's Manual, the
motor may rotate with a torque or at a speed not permitted for the machine.
Otherwise, an accident or injury could occur.
• Even though the inverter has interrupted power to the motor, if the voltage is applied to the main circuit
input terminals L1/R, L2/S and L3/T, voltage may be output to inverter output terminals U, V, and W.
• When the servo-lock command is ON, the inverter keeps on outputting voltage on output terminals [U], [V]
and [W] even if a run command is OFF and the motor seems to stop.
• Even if the motor stops due to DC braking or pre-excitation, voltage is output to inverter's output terminals
[U], [V], and [W].
Otherwise, an electric shock could occur.
• The inverter can easily accept high-speed operation settings. When changing the speed setting, carefully
check the specifications of motors or equipment beforehand.
Otherwise, an injury could occur.
• If the software version is No.3600, never use the terminal function "BATRY" (Enable battery operation). This
function will not work. When the battery power is used in an Up/Down operation, the drive target may fall
due to insufficient lack in the worst case.
Otherwise, an accident could occur.
To Next Page
Loading...
Need help?
General
