DRV-28 inverter
s Installation guide
-21-
4.3 Standard wiring of main circuit
4.3.1 Wiring diagram of main circuit
4.3.1.1 AC 3PH 400V(-20%)
–440V(+10%) main circuit wiring diagram
37kW and below
45-110kW(inclusive)
132kW and above
Brake resistor
Brake unit
Brake resistor
Brake resistor
Brake unit
Input
reactor
Input
filter
Fuse
Input
reactor
Input
filter
3-phase
power
380
V±15%
50/60Hz
3-phase
power
380
V±15%
50/60Hz
R
S
T
R
S
T
U
V
W
PE
U
V
W
PE
Output
reactor
Output
filter
M
（
+
） （
-
）
P1
（
+
）
（
-
）
PB
3-phase
power
380
V±15%
50/60Hz
Fuse
Fuse
R
S
T
U
V
W
PE
Output
reactor
Output
filter
M
M
（
+
）
（
-
）
DC+
DC-
DC+
DC-
DC reactor
Output
reactor
Output
filter
Input
reactor
Input
filter
Fig 4.7 Main circuit wiring diagram for AC 3PH 400V(-20%)
–440V(+10%)
Note:
1.
The fuse, DC reactor, brake unit, brake resistor, input reactor, input filter, output reactor and
output filter are optional parts. See Appendix D
Optional peripheral accessories
for details.
2.
P1 and (+) have been short connected by default for 400V 132kW and above inverters. If users
need to connect to external DC reactor, take off the short-contact tag of P1 and (+).
3.
When connecting the brake resistor, take off the yellow warning sign marked with PB, (+) and (-)
on the terminal block before connecting the brake resistor wire, otherwise, poor contact may
occur.
4.
Built-in brake unit is optional for 400V 45kW-110kW models.
