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2.2
Terminals
Terminals Of Main Circuit
Table 2-1: Main circuit terminals of three-phase
Terminal
Terminal Name
Description
R, S, T
Three-phase power supply input terminals
Connect to the three-phase AC power supply
P(+), (-)
Positive and negative terminals of DC bus
Common DC bus input point
P(+), BR
Connecting terminals of braking resistor
Connect to a braking resistor
U, V, W
Output terminals
Connect to a three-phase motor.
Grounding terminal
Must be grounded.
Table 2-2: Main circuit terminals of single-phase
Terminal
Terminal Name
Description
L1, L2
Single-phase power supply input terminals
Connect to the single-phase 220 VAC power supply.
P(+), (-)
Positive and negative
terminals
of DC bus
Common DC bus input point.
P(+), BR
Connecting terminals of braking resistor
Connect to a braking resistor.
U, V, W
Output terminals
Connect to a three-phase motor.
Grounding terminal
Must be grounded.