Yaskawa Matrix Converter - Manual (Page 6)

iv
„ Setting Parameters
„ Test Run
CAUTION
• Be sure that the ground terminal is properly grounded using a wire of the recommended size.
200 V class: Ground to 100 Ω or less 400 V class: Ground to 10 Ω or less
If a wire smaller than the recommended size is used, the MxC may not operate properly.
• Check to be sure that the voltage of the main AC power supply satisfies the rated voltage of the
MxC.
Injury or fire may occur if the voltage is not correct.
• Do not perform voltage tolerance tests on the MxC.
Such tests may damage semiconductor components and other devices.
• Tighten all terminal screws to the specified tightening torque.
Failure to do so may result in fire.
• Do not connect AC power to output terminals U, V, and W.
Circuitry in the MxC will be damaged if voltage is applied to the output terminals.
• Do not wire AC power lines to terminals p1, n1, r2, s2, or t2. These terminals are used for connect-
ing peripheral devices only.
Applying voltage to these terminals will damage the MxC.
• Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits.
The MxC may be damaged and circuitry may overheat if these devices are connected.
• Do not connect electromagnetic switches or magnetic contactors to the output circuits.
If a load is connected while the MxC is operating, a power surge will trigger the overcurrent protection circuit in the MxC.
CAUTION
• Disconnect the load (machine, device) from the motor before performing Rotational Auto-Tuning.
The motor may turn, possibly resulting in injury or damage to equipment. Also, motor constants cannot be correctly set
with the motor attached to a load.
• Stay clear of the motor during Rotational Auto-Tuning.
The motor may start operating suddenly when stopped, possibly resulting in injury.
WARNING
• Make sure that the front cover is properly attached before turning on the power supply.
Failure to do so may result in electric shock.
• Leave a reasonable amount of space between yourself and the application when using the fault
reset function. The machine may start moving suddenly once the alarm is cleared.
The application should be designed to ensure safety when the MxC is restarted.
Failure to do so may result in injury.
• Provide a separate emergency stop switch (the STOP key on the digital operator works only when
it has been enabled).
Failure to do so may result in injury.
• Reset alarms only after confirming that the RUN signal has been switched off.
Failure to do so may result in injury.