Chapter 1 Inspection and Safety Precautions
6
No.
Type
Explanation
2) The cooling fan and the rotor shaft for non-inverter motor
are coaxially connected, the fan cooling effect is reduced
when the rotational speed is reduced, therefore, when the
motor works in overheating occasions,a strong exhaust
fan should be retrofitted or replace non-inverter motor
with the inverter motor;
3) The inverter has built-in the adaptive motor standard
parameters, according to the actual situation, please
identify motor parameters or accordingly modify the
default values to try to meet the actual value,otherwise it
will operation affect and protection performance;
4) When short-circuit of cable or motor internal will activate
the inverter alarm, even bombing. Therefore, firstly
perform insulation short-circuit test for the initial
installation of the motor and cable, routine maintenance
often also need to perform such test. Note that the parts to
be tested and the inverter shall be disconnected
completely when testing.
15
Others
1) Never connect the AC power to the inverter output
terminals (U, V, W) .
2) Properly fix and lock the panel before powering on, so as
to avoid hurting the personal safety due to internal poor
capacitors.
3) Never perform wiring, checking and other operations
after power is turned on.
4) Do not touch the internal circuit board and its
components in order to avoid the risk of electric shock
after this unit is powered,
5) Do not touch internal circuit board and any parts after
powering off and within five minutes after keyboard
indicator lamp goes out,you must use the instrument to
confirm that internal capacitor has been discharged
fully,otherwise there is a danger of electric shock.
6) Body static electricity will seriously damage the internal
MOS field-effect transistors, etc.,if there are not anti-
static measures, do not touch the printed circuit board
and IGBT internal device with hand, otherwise it may
cause a malfunction.
7) The ground terminal of the inverter (E or
）
shall be
earthed firmly according to the provisions of the
National Electrical Safety and other relevant standards.
Do not shut down (power off) by pulling switch,and
only cut off the power until the motor stopping
operation.
8) It is required to add the optional input filter attachment so
as to meet CE standards
