Advertisement
Wiring system
When the voltage unbalance of the three-phase power supply exceeds 3%, the
rectifier component will be damaged.
The input power factor of the drive is required to be higher than 90%. In case of
above situations, install the AC reactor at the input end of the drive or DC reactor to
the DC reactor terminal.
Input noise
The input noise filter can reduce the noise that flows from the power supply to the
drive or the drive to power supply.
Thermal protection relay
Although the drive has motor overload protection function, when one drive drives
two or more motors or multi pole motors, to prevent the motor over temperature
failure, thermal protection relay shall be installed between the drive and each motor,
and the motor overload protection parameter FC.00 shall be set as "0" (motor
protection disabled).
Output noise filter
When the noise filter is applied to the output side of drive, the conduction and
radiation interference can be reduced.
Output AC reactor
When the cable connecting the drive and the motor is longer than 100m, it is
suggested to install AC output reactor to suppress the high-frequency oscillation to
avoid the damage to motor insulation, large leakage current and frequent drive
protective actions.
3.3 Attention for Main Circuit Wiring
Power Supply Wiring
It is forbidden to connect the power cable to the drive output terminals; otherwise,
the internal components of the drive will be damaged.
To facilitate the input side over current protection and power failure maintenance,
the drive shall connect to the power supply through the circuit breaker or leakage
circuit breaker and contactor.
Please confirm that the power supply phases, rated voltage are consistent with that
of the nameplate, otherwise, the drive may be damaged.
3.4. Motor Wiring
It is forbidden to short circuit or ground the drive output terminals; otherwise the
internal components of the drive will be damaged.
SINAMICS V50 converter
6
Operating Instructions, 04/2022, FW V1.0, A5E44777205B AB
Advertisement
