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7.1 Specifications
(1) Specifications of the 400 V class model
Model name (type name)
SJ700B-□□□HFF
Max. applicable motor
capacity (4-pole) (kW)
400V
Rated capacity
(kVA)
480V
Rated input AC voltage
Rated output voltage
Rated output
(Note1)
current (A)
(Note2)
Regenerative braking
Minimum connectable
resistance (Ω)
Approx. weight (kg)
Protective structure
Control system
Output frequency range
Frequency accuracy
Frequency setting
resolution
Voltage/frequency
characteristic
Speed fluctuation
Rated overload current
Acceleration/deceleration
time
Starting torque
DC braking
Note 1: The value of this row is that for UL application.
Note 2: The value of this row is that of actual ability.
055
075
110
5.5
7.5
11
8.3
11.0
15.2
9.9
13.3
18.2
Three-phase (3-wire), 380 to 480 V (+10%, -15%), 50/60 Hz (±5%)(note3)
Three-phase (3-wire), 380 to 480 V (corresponding to the input voltage)
14
17
23
14
16
22
Internal BRD circuit (external discharge resistor)
70
70
70
3.5
6
6
Within ±0.01% of the maximum output frequency for digital input, within ±0.2% of maximum frequency
for digital input (at 25±10°C)
Digital input: 0.01 Hz
Analog input: Maximum output frequency/4000
(O terminal input: 12 bits/0 to +10 V, O2 terminal input: 12 bits/-10 to +10 V, OI terminal input: 12 bits/0
to +20 mA)
V/f characteristic variable with the base frequency set between 30 to 400 Hz, constant- or
reduced-torque V/f control, sensorless vector control, 0Hz-range sensorless vector control
(set the carrier frequency less than 3kHz)
±0.5% (with sensorless vector control or 0Hz-range sensorless vector control)
150%/60 seconds, 200%/3 seconds
0.01 to 3,600.0 seconds (in linear or curved pattern)
150%/0.5Hz (with sensorless vector control or 0Hz-range sensorless vector control)
120%/0Hz-range torque (with 0Hz-range sensorless vector control or with a motor of capacity one class
lower than the inverter connected)
Triggered at motor start-up, when the actual motor frequency exceeds the acceleration frequency set by
a stop command, when the actual motor frequency exceeds the frequency set by a frequency
command, or by an externally input command (braking force, time, and frequency are variable).
150
185
220
15
18.5
22
20.9
25.6
30.4
24.1
30.7
36.5
30
39
45
29
37
43
50
35
35
6
14
14
IP20
Sine-wave PWM control
0.1 to 400 Hz
7 - 1
Chapter 7 Specifications
300
370
450
30
37
45
39.4
48.4
58.8
47.3
58.1
70.6
60
72
88
57
70
85
External regenerative braking
unit
35
-
22
22
30
550
55
72.7
87.2
105
105
30
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