Inovance MD520-4T5.5BS - Page 25

System Structure
‑24‑
R S T
POWER
U V W
MOTOR
BR (+) (-)
Figure 3‑6 Main circuit terminals of T5 to T8 models
(-)
TR S
(+)
U
WV
POWER
MOTOR
Figure 3‑7 Main circuit terminals of T9 models
Table 3–2 Description of main circuit terminals
Mark
Name
Description
R, S, T
Three‑phase power supply
input terminals
Connected to AC input
three‑phase power supply.
(+), (‑) Positive and negative
terminals of DC bus
Common DC busbar input,
connected to the external
braking unit of T9 models
and above.
(+), BR‑ Braking resistor connection
terminals
Connected to the braking
resistor of T8 models and
below.
U, V, W
Output terminals Connected to a three‑phase
motor.
Grounding terminal (PE) Used for protective
grounding.