KE300A Inverter Mechanical and Electric Installation
36
Note:
1. Terminal
◎
refers to the main circuit terminal, terminal
○
refers to the control circuit terminal.
2. Built-in braking unit is standard in the inverters below 30kW, and optional for 30kW inverters.
3. Braking resistor is optional for user.
3.2.5 Main circuit terminals and connections
Danger
Make sure that the power switch is at OFF status prior to perform wiring
connection. Otherwise there may be danger of electric shock!
Only the qualified and trained personnel can perform wiring connection. Otherwise
it may cause equipment and human injuries!
It should be earthed reliably. Otherwise there may be danger of electric shock or
fire!
Caution
Make sure that the rated value of the input power supply is consistent with that of
the inverter. Otherwise it may damage the inverter!
Make sure that the motor matches the inverter. Otherwise it may damage the motor
or generate inverter protection!
Do not connect the power supply to the terminals of U, V and W. Otherwise it may
damage the inverter!
Do not directly connect the brake resistor between the DC bus terminals (+) and (-).
Otherwise it may cause fire!
1)
Main circuit terminals
b
R
W
V
U
PB
(+)
N
L
Figure 3-5
Main circuit terminals
（
1AC 220V, 0.4
～
1.5kW
）
b
R
T
W
V
U
PB
(+)
S
R
Figure 3-6
Main circuit terminals
（
3AC 220V, 0.4
～
1.5kW
）
b
R
(+) (-)
PB
L1
R
S
L2
T
U V W
Figure 3-7 Main circuit terminals
（
1AC/3AC 220V, 2.2kW; 3AC 380V, 0.75
～
5.5kW
）
(-)
V
W
T
U
S
R
PB
(+)
Figure 3-8 Main circuit terminals
（
3AC 380V, 7.5kW
）
