EM12-Z series user manual
2
Danger
the frequency inverter. The input terminals (R, S, T) and output terminals (U, V,
W) are properly connected. No short-
circuit exists in the peripheral circuit. The
wiring is fastened. Failure to comply will result in damage to frequency inverter.
Cover the frequency inverter properly before power-on to prevent electric shock.
Before
power-on
Warning
Do not perform the voltage resistance test on any part of the frequency inverter
because such test has been done in the factory. Failure to comply will result in
accidents.
All peripheral devices must be connected properly under the instructions
described in this manual. Failure to comply will result in accidents.
After
power-on
Danger
Do not open the frequency inverter’s cover after power-
electric shock.
Do not touch the frequency i
nverter with wet hand and its peripheral circuit to
prevent from electric shock.
Do not touch the terminals of the frequency inverter (including the control
terminals). Failure to comply may result in electric shock.
Do not touch the U, V, W terminal or mo
tor connecting terminals when
frequency inverter automatically does safety testing for the external high-voltage
electrical circuit. Failure to comply may result in electric shock.
Warning
Note the danger during the rotary running of motor when check
Failure to comply will result in accidents.
Do not change the factory default settings of the frequency inverter. Failure to
comply will result in damage to the frequency inverter.
During
operation
Danger
Do
not go close to the equipment when selected the restart function. Failure to
comply may result in personal injury.
Do not touch the fan or the discharging resistor to check the temperature. Failure
to comply will result in personal injury.
Signal detection must be performed only by qualified personal during operation
Warning
Avoid objects falling into the frequency inverter when it is running. Failure to
comply will result in damage to frequency inverter.
Do not start/stop the frequency inverter by tur
ning the contactor ON/OFF.
Failure to comply will result in damage to the frequency inverter.
Maintenance
Danger
Do not repair or maintain the frequency inverter at power-
will result in electric shock.
Repair or maintain the frequency inverter only after the charge light on
frequency inverter is powered off. This allows for the residual voltage in the
capacitor to discharge to a safe value. Failure to comply will result in personal
injury.
Repair or mai
ntenance of the frequency inverter may be performed only by
qualified personnel. Failure to comply will result in personal injury or damage to
the frequency inverter.
