IACDRIVE I5300 Series User Manual page 25

I5300 User Manual
2.4.1 Description of Peripheral Electrical Devices
Table 2-3 Description of peripheral electrical devices
Part Mounting Location
MCCB Power receiving side
Between MCCB and
Contactor
AC drive input side
AC input
AC drive input side
reactor
EMC
AC drive input side
Input filter
I5300 series AC drive
DC of 7.5G and above
reactor configured with DC
reactor as standard
Between AC drive
AC output output side and the
reactor motor, close to the
AC drive
1) Do not install the capacitor or surge suppressor on the output side of the AC drive.
Otherwise, it may cause faults to the AC drive or damage to the capacitor and surge
suppressor.
2) Inputs/Outputs (main circuit) of the AC drive contain harmonics, which may interfere with
the communication device connected to the AC drive. Therefore, install an anti-interference
filter to minimize the interference.
3) For more details on peripheral devices, refer to related selection manual.
Function Description
Interrupt the power supply when overcurrent occurs on
downstream devices
Start and stop the AC drive.
Do not start and stop the AC drive frequently by switching
the contactor on and off (less than twice per minute) nor
use it to directly start the AC drive.
• Improve the power factor of the input side.
• Eliminate the higher harmonics of the input side
effectively and prevent other devices from being
damaged due to distortion of the voltage waveform.
• Eliminate the input current unbalance due to unbalance
between the power phases.
• Reduce the external conduction and radiation
interference of the AC drive.
• Decrease the conduction interference flowing from
the power end to the AC drive and improve the anti-
interference capacity of the AC drive.
• Improve the power factor of the input side.
• Improve the efficiency and thermal stability of the AC drive.
• Eliminate the impact of higher harmonics of the AC
drive input side and reduce the external conduction
and radiation interference.
The output side of the AC drive generally has much
higher harmonics. When the motor is far from the AC
drive, there is much distributed capacitance in the circuit
and certain harmonics may cause resonance in the
circuit, bringing about the following two impacts:
• Degrade the motor insulation performance and
damage the motor in the long run.
• Generate large leakage current and cause frequent AC
drive protection trips.
If the distance between the AC drive and the motor is
greater than 100 m, install an AC output reactor.
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