Chapter 1
Safety Precautions
1-3
1.1.5 During operation
Danger
Do not connect or disconnect the motor while inverter is operating the motor. The inverter and the
disconnect device can sustain damage from high levels of switch-off current transients.
Danger
z
To avoid electric shock, do not take the front cover off while power is on.
The motor will restart automatically after stop when auto-restart function is enabled. In this case, care
must be taken while working around the drive and associated equipment .
z
Note: The operation of the stop switch is different than that of the emergency stop switch.
The stop switch has to be activated to be effective. Emergency stop has to be de-activated
to become effective.
Caution
z
Do not touch heat-generating components such as heat sinks and brake resistors.
z
The inverter can drive the motor from low speed to high speed. Verify the allowable speed ranges of
the motor and the associated machinery.
z
Note the settings related to the braking unit.
z
Do not check signals on circuit PCB while the inverter is running.
Caution
Allow a minimum of 5 minutes power down before attempting to disassemble or check the
components within the drive.
1.1.6 Useable environment
Caution
When the inverter top dust cover has been removed the drive can be installed in a non-
condensing environment with temperature ranging between –10
degree C
to +50
degree C
and relative
humidity
of 95% or less, but the environment should be free from water and
metal dust.
