Electrical Installation
‑128‑
U, V, and W on the output side
● Wiring and installation of external main circuits must comply with local
regulations and related IEC requirements.
● Use copper lead wires of appropriate dimensions.
● Avoid connecting the output side to a capacitor or surge protection device. Failure
to comply may result in frequent triggering of the protection mechanism or even
damage to the AC drive.
● An excessively long motor cable may result in electrical resonance due to the
distributed capacitance. The electrical resonance may in return lead to damage to
motor insulation or high leakage current, triggering the overcurrent protection
mechanism of the AC drive. When using a motor cable longer than 100 m, install
an AC output reactor close to the AC drive.
Grounding (PE) terminal
For grounding requirements, see "6.5 Grounding".
Wiring example (T13 models)
The following figure illustrates the wiring of main circuit terminals and grounding (PE)
terminals of T13 models. For requirements and recommendations of main circuit
routing, see "
7.4.4 Cable Routing Requirements
"
on page 144
and "
7.4.5 Routing
Recommendations
"
on page 145
.
Figure 7‑26 Wiring of main circuit terminals and grounding (PE) terminals
To prevent mice and insects from entering the cabinet and causing damage to the AC drive,
use sealing materials such as fireproof mud to seal the cable inlet/outlet holes after wiring
the main power terminal and grounding (PE) terminal.
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