Hitachi SJ300 Series Instruction Manual page 28

1–8
SJ300 Inverter Specifications
Item
SJ300 inverters,
400V models
Applicable motor size *2
Rated capacity (400 / 480V) kVA
Rated input voltage
Rated input current (A)
Rated output voltage *3
Rated output current (A)
Efficiency at 100% rated output, %
Watt loss,
approximate (W)
Starting torque *6
Dynamic braking
approx. % torque,
short time stop *7
DC braking
Weight
Tables for 400V class inverters, continued...
U.S. version 750HFU
European ver. 750HFE
HP 100
kW 75
103.2 / 123.8
164
149
95.2
at 70% output 2675
at 100% output 3800
with motor one frame size down), 100% at 0 Hz (with feedback board)
w/o braking unit
with braking unit 45–70%
kg / lb 60 / 132
Footnotes for the preceding tables and the table that follows:
Note 1: The protection method conforms to JEM 1030.
Note 2: The applicable motor refers to Hitachi standard 3-phase motor (4-pole). When using
other motors, care must be taken to prevent the rated motor current (50/60 Hz) from
exceeding the rated output current of the inverter.
Note 3: The output voltage decreases as the main supply voltage decreases (except when
using the AVR function). In any case, the output voltage cannot exceed the input
power supply voltage.
Note 4: To operate the motor beyond 50/60 Hz, consult the motor manufacturer for the
maximum allowable rotation speed.
Note 5: When SLV is selected, please set the carrier frequency higher than 2.1 kHz.
Note 6: At the rated voltage when using a Hitachi standard 3-phase, 4-pole motor (when
selecting sensorless vector control—SLV).
Note 7: The braking torque via capacitive feedback is the average deceleration torque at the
shortest deceleration (stopping from 50/60 Hz as indicated). It is not continuous
regenerative braking torque. The average decel torque varies with motor loss. This
value decreases when operating beyond 50 Hz. If a large regenerative torque is
required, the optional regenerative braking resistor should be used.
Note 8: The frequency command will equal the maximum frequency at 9.8V for input voltage
0 to 10 VDC, or at 19.6 mA for input current 4 to 20 mA. If this characteristic is not
satisfactory for your application, contact your Hitachi sales representative.
Note 9: The storage temperature refers to the short-term temperature during transport.
Note 10: Conforms to the test method specified in JIS C0911 (1984). For the model types
excluded in the standard specifications, contact your Hitachi sales representative.
Note 11: NEMA 1 applies up to 22kW. An optional wire-entry conduit box is required for
30kW to 55kW models to meet NEMA 1 rating.
400V Class Specifications
900HFU 1100HFU
900HFE 1100HFE
125 150
90 110
121.9 / 146.3 150.3 / 180.4
3-phase (3-wire) 380 to 480V ±10%, 50/60 Hz ±5%
194 239
3-phase (3-wire): 380 to 480V (corresponding to input voltage)
176 217
95.2 95.2
3375 3900
4800 5550
180% at 0.5 Hz (SLV), 130% at around 0 Hz (SLV, 0 Hz domain,
10%
40–60% 30–50%
Variable operating frequency, time, and braking force
60 / 132 80 / 176
— 1500HFU
1320HFE —
175 200
132 150
180.1 / 216.1 180.1 / 216.1
286 286
260 260
95.2 95.2
4670 4670
6650 6650
25–40% 20–35%
80 / 176 80 / 176