Hitachi SJ300-037HFE 用户手册

SJ300 Inverter Specifications

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Tables for 400V class inverters, continued...

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.

Item

400V Class Specifications

SJ300 inverters,
400V models

UL version

750HFU

900HFU

1100HFU

—

1500HFU

CE version

750HFE

900HFE

1100HFE

1320HFE

—

Applicable motor size *2

100

125

150

175

200

110

132

150

Rated capacity (400 / 480V) kVA

103.2 / 123.8

121.9 / 146.3

150.3 / 180.4

180.1 / 216.1

Rated input voltage

3-phase (3-wire) 380 to 480V ±10%, 50/60 Hz ±5%

Rated input current (A)

164

194

239

286

Rated output voltage *3

3-phase (3-wire): 380 to 480V (corresponding to input voltage)

Rated output current (A)

149

176

217

260

Efficiency at 100% rated output, %

95.2

Watt loss,
approximate (W)

at 70% output

2675

3375

3900

4670

at 100% output

3800

4800

5550

6650

Starting torque *6

180% at 0.5 Hz (SLV), 130% at around 0 Hz (SLV, 0 Hz domain,

with motor one frame size down), 100% at 0 Hz (with feedback board)

Dynamic braking
approx. % torque,
short time stop *7

w/o braking unit

10%

with braking unit

45–70%

40–60%

30–50%

25–40%

20–35%

DC braking

Variable operating frequency, time, and braking force

Weight

kg / lb

60 / 132

80 / 176