System Composition
‑37‑
Figure 3‑7 Layout of main circuit terminals for T9 models
Table 3–2 Descriptions of main Circuit terminals
Terminal Identification Terminal Name
Function
R, S, T
Three‑phase power supply
input terminals
Connected to a three‑phase
AC input power supply
(+), (‑)
Positive and negative
terminals of the DC bus
Common DC busbar input;
connected to the external
braking unit of T9 models
and above.
(+), BR
Braking resistor connection
terminals
Used to connect to the
braking resistor of T8
models and below
Note: Only models with the
name containing "B" are
equipped with brake
resistance terminals. For
models with the name
excluding "B", external
brake units are required.
U, V, W
Output terminals Connected to a three‑phase
motor
Grounding terminal (PE) Used for protective
grounding
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