STEP ET Series - Technical Performance and Specifications of the Inverter

Chapter 4 Wiring of Inverter
Shanghai Sigriner STEP Electric Co., Ltd.
- 12 -
Spec
ifica
tion
Inverter
model
EP6/ET6 series (heavy load)
EH6 series (light load)
EP6 rated
input
current
(A)
ET6
rated
input
current
(A)
Rated
output
current
(A)
Applica
ble
motor
Power
(kW)
Overload
150%
(1min)
Rated
input
Current
(A)
Rated
output
current
(A)
Applic
able
motor
(kW)
Overloa
d 110%
(1min)
F7
4T250
207
207
216
110
324
248
250
132
275
4T304
248
248
260
132
390
300
304
160
334.4
F8
4T377
300
300
304
160
456
373
377
200
414.7
4T414
365
365
377
200
565.5
410
414
220
455.4
F9
4T477
410
410
414
220
621
456
477
250
524.7
4T520
465
465
477
250
715.5
507
520
280
572
4T605
520
520
520
280
780
584
605
315
666
F10
4T675
584
584
605
315
907.5
657
675
355
742.5
Remarks: 1. The DC reactor is equipped in the EP6 series ≥ 22 kW as standard
configuration;
2. The DC reactor is equipped in the EH6 series ≥ 30 kW as standard configuration;
3. The DC reactor is equipped in the ET6 series full range as standard configuration.
2.2 Technical performance and specifications of the inverter
Power input
Input voltage
380-480 V (-15% - +10%), three-phased TN, TT
Input frequency
50/60Hz（±5%）
Allowable
voltage
fluctuation
Voltage imbalance < ± 3%
Power output
Voltage
0VAC~input voltage
Overload level
Heavy load 150%, 1 min/10min; light load 110%, 1 min/10min
Efficiency (full
load)
96%-99%
Output frequency
accuracy
±0.01Hz
Control
characteristics
Control mode
GVC
SVC
FOC
Enabling torque
150%
150%
150%
Output frequency
0~600Hz
0~600Hz
0~120Hz
Carrier frequency
1.5-16 kHz (derated); the carrier frequency can be automatically adjusted
according to load features.
(Derating is required for the use above the rated carrier frequency)
Frequency
setting resolution
Digital input: 0.01 Hz
Analog input: 1/2048 of the highest output frequency (signed 11 bits)
Running
command
channel
Operation panel setting, control terminal setting, communication setting
Frequency
setting channel
Operation panel preset, digital/analog preset, communication preset, pulse
preset
Automatic
Voltage
Automatically adjusts the duty cycle of the output PWM signal according to
the fluctuation of bus voltage, thus reducing the impact of grid voltage