Chapter 1.Inspection and safety precautions
3
Ch
ap
ter 1
Otherwise it may cause an accident!
During
operation
Danger
● The inverter's cover plate must be closed before power on.
Otherwise it may cause an electric shock!
● Wiring of all external accessories must comply with the guidance
of this manual, please correctly wiring in accordance with the
circuit connection methods described in this manual. Otherwise it
may cause an accident!
Note
● Do not open cover plate after energizing. Otherwise there is a
risk of electric shock!
● Do not touch the driver and peripheral circuits with wet hands.
Otherwise there is a risk of electric shock!
● Do not touch any input and output terminals of the inverter.
Otherwise there is a risk of electric shock!
● The inverter automatically perform the safety testing for the
external strong electrical circuit in the early stages of energizing,
therefore never touch the driver terminals(U, V, W) or motor
terminals, otherwise there is a risk of electric shock!
● If you need to identify the parameters, please pay attention to the
danger of injury during motor rotation. Otherwise it may cause an
accident!
● Please do not change the inverter manufacturer parameters.
Otherwise it may cause damage to this unit!
When
maintaining
Danger
● Do not touch the cooling fan and the discharge resistor to feel the
temperature. Otherwise it may cause burns!
● Non-professional personnel is not allowed to detect signal when
operating. Doing so may cause personal injury or damage to this
unit!
● When the inverter is operating, you should avoid that objects fall
into this unit.Otherwise cause damage to this unit!
● Do not start/stop the driver by switching on/off contactor.
Otherwise cause damage to this unit!
● Do not perform repairs and maintenance for the live electrical
equipment. Otherwise there is a risk of electric shock!
● The repairs and maintenance task can be performed only when
the inverter bus voltage is lower than 36V,Otherwise, the residual
charge from capacitor would cause personal injury!
● Non-well-trained professional personnel is not allowed to
perform repairs and maintenance of inverter. Doing this may cause
personal injury or damage to this unit!
● After replacing the inverter, parameter settings must be redone,
all pluggable plugs can be operated only in the case of powering
off!
1-3.Precautions
No.
Type
Explanation
1
Motor insulation
inspection
Please perform motor insulation inspection for the first time use,
re-use after leaving unused for a long time as well as regular
check, in order to prevent damage to the inverter because of the
motor's winding insulation failure. Wiring between motor and
inverter shall be disconnected, it is recommended that the 500V
voltage type megger should be adopted and insulation resistance
shall be not less than 5MΩ.
2
Motor thermal
protection
If the rated capacity of the selected motor does not match the
inverter, especially when the inverter rated power is greater than
