DRV-28 inverter
s Product overview
-9-
R
S
T
U
V
W
（
+
）
（
-
）
DC reactor
P1
PE
PE
Fig 3.3 400V (132kW and above) main circuit diagram
Note:
1. 132kW and above inverters can be connected to external DC reactors. Before connection, it is
required to take off the copper bar between P1 and (+). 132kW and above inverters can be
connected to external brake unit. DC reactors and brake units are optional parts.
2. 18.5kW
–110kW (inclusive) inverters are equipped with built-in DC reactor.
3. 37kW and below models carry built-in brake units, 45kW
–110kW (inclusive) supports built-in
brake unit. The models that carry built-in brake unit can also be connected to external brake
resistor. The brake resistor is optional part.
3.3 Product specification
Function description
Specification
Power input
Input voltage (V)
AC 3PH 400V (-20%)–440V (+10%) rated voltage: 400V
Input current (A)
Refer to
Rated value
Input frequency (Hz)
50Hz or 60Hz, allowable range: 47–63Hz
Power
output
Output voltage (V)
0–input voltage
Output current (A)
Refer to Rated value
Output power (kW)
Refer to Rated value
Output frequency (Hz) 0–400Hz
Technical
control
performance
Control mode
SVPWM control, SVC, VC
Motor type
Asynchronous motor, permanent-magnet synchronous
motor
Speed regulation ratio
Asynchronous motor 1: 200 (SVC); Synchronous motor 1:
20 (SVC) , 1:1000 (VC)
Speed control precision ±0.2% (SVC), ±0.02% (VC)
Speed fluctuation
± 0.3% (SVC)
Torque response
<20ms SVC) , <10ms (VC)
