Electrical Design
‑55‑
If capacitive loads (for example, lighting, PC, PLC, and power factor correction capacitors)
share one network with the drive, resonance may occur. Resonant current may damage the
units on the network.
3.2.4 Checking Motor Compatibility
The drive can be used for an AC asynchronous induction motor, a permanent magnet
synchronous motor or an AC induction servo motor. One drive can be connected to
multiple induction motors.
Based on actual AC line voltage and motor load, select motor capacity and AC drive
type from the table of ratings in the "Technical Data" section.
3.2.5 Using a PMSM
Only one permanent motor can be connected to the output side of each inverter.
It is recommended that a safety switch be installed between the permanent
synchronous motor and the drive. The safety switch can safely disconnect the motor
from the drive. According to the safety instructions, ensure that the motor does not
send power back to the drive during maintenance.
3.2.6 Cable Routing Requirements
1. Separated routing of signal cables and power cables
When analog signals are used for remote control on the cabinet module, separate
signal cables from high‑voltage circuits (power input, inverter output, and braking
resistor connection cables) by a distance above 50 cm to reduce interference from
the AC drive and other equipment to analog signals. Comply with this requirement
for cable routing even inside the control cabinet.
2. Analog control signal cables
Use shielded twisted pair cables. Minimize the length of unshielded part of the
cable (about 5 mm to 7 mm) and wrap the exposed part with insulation tape to
prevent the shielded cable from coming into contact with other equipment and
incurring interference.
3. Motor cables
Use shielded cables. Minimize the distance between the cabinet module and the
motor, and route the motor cables separately from other cables. Also, avoid long‑
distance parallel routing of the motor cables and other cables to reduce
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