EXPERT Standard Series User Manual
33
50m, AC output reactor had better be mounted to
Reduce the leakage current and prolong the service life of motor. When installing,
please consider the Voltage drop problem of AC output reactor; Or the
input/output voltage of drive is stepped up or the motor is derated to protect the
motor.
(8) Safe grounding wire
The drive and motor must be earthed separately for safely as there is leakage
current in the drive, the grounding resistance shall be less than 10Ω. The
grounding wire shall be as short as possible, and its diameter shall be in line with
the standard given in table3-2.(Only two kinds of conductors are provided with
the same metal, the value in the table can be correct, if not, the sectional area of
protective conductor is determined with equivalent conductive factor method and
referred to table 3-2)
Table2-4 Sectional area of protective conductor
Corresponding conductor sectional
area(mm
2
)
Min sectional area of corresponding
grounding conductor(mm
2
)
S ≤ 16
S
16 < S ≤ 35
16
35 < S
S/2
2.4.2 Power Grid system requirement
This product is suitable for the grid system with neutral grounding. If it is used
in the IT system, the varistor group jumper shall be removed, as shown in the
VDR screw, otherwise may cause damage to the drive
Safety capacitor set screws
Diagram2-18 Location diagram of safety capacitor (EMC) short crew
The varistor group integrated inside of drive is connected by default, If leakage
protection switch action when the whole machine is powered on, the safety
