1. Safety Information and Precautions
EM15 User’s Manual
2
Before
power-on
Danger
⚫
Check that the following requirements comply with:
The voltage class of the power supply is consistent with the rated voltage class of
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-on to prevent from
electric shock.
⚫
Do not touch the frequency inverter 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 motor 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 the parameters.
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 turning 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-on. Failure to comply
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 maintenance 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.