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Installation and Wiring
2.2.3 Main Circuit Terminals
R S
T
U V W
BR
+
-
Figure 2-5
Terminal arrangement in MD500L-T3.7GBO to MD500L-T15GBO
R S T
POWER
U V W
MOTOR
BR (+) (-)
Figure 2-6
Terminal arrangement in MD500L-T18.5GBO to MD500L-T30GBO
Table 2-1
Description of main circuit terminals
Terminal
Name
Description
R, S, T
Three-phase power
supply input terminals
Connected to AC input three-phase power supply
(+), (-)
DC bus positive and
negative terminals
Common DC bus input, connected to the external
braking unit for AC drives of 90 kW and above
(+), BR
Braking resistor
connection terminals
Connected to the external braking resistor for AC
drive of 75 kW and below
U, V, W
AC drive output
terminals
Connected to a three-phase motor
Ground (PE) terminal
Grounding connection