v
• If you enable the "restart mode after momentary power failure" (Function code F14 = 4 or
5), then the inverter automatically restarts running the motor when the power is recovered.
(Design the machinery or equipment so that human safety is ensured after restarting.)
• If you set the function codes wrongly or without completely understanding this instruction
manual and the FRENIC-Mini User's Manual, the motor may rotate with a torque or at a
speed not permitted for the machine.
An accident or injuries could occur.
• Do not touch the inverter terminals while the power is applied to the inverter even if the
inverter stops.
Doing so could cause electric shock.
• Do not turn the main circuit power on or off in order to start or stop inverter operation.
Doing so could cause failure.
• Do not touch the heat sink or braking resistor because they become very hot.
Doing so could cause burns.
• Setting the inverter to high speeds is easy. Before changing the frequency (speed) setting,
check the specifications of the motor and machinery.
• The brake function of the inverter does not provide mechanical holding means.
Injuries could occur.
Wiring length for EMC filter built-in type
• When the wiring length between the inverter and motor exceeds 10 m, the filter circuit may
be overheated and damaged due to increase of leakage current. To reduce the leakage
current, set the motor sound (carrier frequency) to 2 kHz or below with function code F26.
Otherwise a failure could occur.
Installation and wiring of an option card
• Before installing an RS-485 Communications Card, turn off the power, wait more than five
minutes, and make sure, using a circuit tester or a similar instrument, that the DC link bus
voltage between the terminals P (+) and N (-) has dropped below a safe voltage (+25
VDC).
• Do not remove the terminal cover for the control circuits while power is applied, because
high voltage lines exist on the RS-485 Communications Card.
Failure to observe these precautions could cause electric shock.
To Next Page
Loading...
