MD600 Series Compact AC Drive Hardware Guide-EN-B06.PDF - 第29页
Electrical Design ‑ 28 ‑ 4 Electrical Design 4.1 Electrical Wiring Diagram Wiring diagram for the MD600 (RS485 model) Figure 4‑1 Input terminals of three‑phase/single‑phase power supply
System Connection
‑27‑
Component
Installation
position
Applicable
model
Function overview
AC input
reactor
Input side of the
drive
All models It provides the following functions: Improves the power factor on the
input side.
Eliminates harmonics on the input side and prevents other devices from
being damaged due to voltage waveform distortion.
Eliminates input current unbalance caused by inter-phase unbalance.
EMC filter Input side of the
drive
All models It provides the following functions: Reduces the conduction and
radiation interference generated by the AC drive to external devices.
Simple
Filter
Input side of the
drive
All models It provides the following functions: Reduces the conduction and
radiation interference generated by the AC drive to external devices.
Decreases conduction interference flowing from the power supply to the
AC drive and improves the anti-interference capacity of the AC drive.
Braking
Resistor
Input side of the
drive
All models A drive with the model name containing letter B is equipped with a
built-in braking unit. After the braking resistor is connected to the
braking unit, the braking resistor consumes regenerative energy during
motor deceleration.
Output
reactor
Output side of
the drive
All models Harmonics are present in the output side of the drive. When motor is far
from AC drive, there is excessive distributed capacitance in the circuit.
Certain harmonics may cause resonance in the circuit, which can:
● Degrade the motor insulation performance and damages the motor in
the long time.
● Generates large leakage current and causes frequent AC drive
protection trips.
The output reactor can protect motor insulation and reduce bearing
current, prolonging the service life of the motor.
Magnetic
ring and
magnetic
buckle
AC drive input
side or output
side
All models When installed on the input side, the ferrite ring can be used to suppress
the noise in the input power supply system of the drive. When installed
on the output side, the ferrite ring can be used to suppress interference
generated by the drive to external devices and reduce the bearing
current.
Signal cable All models Improves the anti-interference performance of signals.
Motor Output side of
the drive
All models Select an applicable motor.
External
operating
panel
Connect the
external
operating panel
to the CN2 port.
All models LCD operating panel SOP-20-810 and LED operating panel MD-BP-M.
Note: For selection of peripheral electrical devices, see
" Accessory Specifications
"
on page 103
.
Electrical Design
‑29‑
Wiring diagram for the MD600 (CAN model)
Figure 4‑2 Input terminals of three‑phase/single‑phase power supply
● Signal interference may cause malfunctions. Therefore, keep the signal cable at
least 20 cm away from the power cable and separately configure the input and
output sides of the main circuit.
● Do not leave cuttings inside the drive while wiring. Failure to comply may result
in errors, faults, and malfunctions.
● Keep the drive clean. Do not drop cuttings or dust into the drive while drilling
mounting holes on the control cabinet.
4.2 Cable Preparations
During the electrical design phase, you need to prepare cables according to the cable list
and cable preparation.