Common specifications for SB70G series
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Item |
Description |
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Input |
Rated voltage and frequency |
1 phase: 220v; 3-phase: 220v/380V/690V，50/60Hz |
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Allowable range |
Voltage: 320～420V; voltage imbalance＜3％; frequency:47～63 Hz |
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output |
Output voltage |
3-phase, 0V～input voltage, with the error less than 5%. |
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Output frequency range |
V/F control: 0.00～650.00Hz Vector control: 0.00～200.00Hz |
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Basic specifications |
Motor control mode |
V/F control without PG, V/F control with PG, vector control without PG, vector control with PG, V/F separate control |
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Steady-state speed precision |
Vector control without PG: ≤1％ Vector control with PG: ≤0.02％ |
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Starting torque |
Not less than 150% of rated torque at 0.50Hz |
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Overload capacity |
150％ of rated current for 1 minute |
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Frequency resolution |
Digital reference: 0.01Hz Analog reference: 0.1％ of max. frequency |
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Output frequency precision |
Analog reference: :±0.2％ of max. frequency（25±10℃） Digital reference: 0.01Hz（－10～＋40℃） |
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Command source |
Keypad, terminal and communication. They can be switched over by terminals |
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Frequency reference source |
Keypad, communication, UP/DOWN value, AI1, AI2, PFI and arithmetic unit |
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Auxiliary frequency reference |
Achieves flexible frequency setting |
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Torque boost |
Auto or manual torque boost |
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V/F curve |
User defined V/F, linear V/F and 5 reduced-torque curves |
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Accel/decel |
Linear or S-curve acceleration/deceleartion |
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Jog |
Jog freuqnecy: 0.10～50.00Hz Jog accel/decel time: 0.1～60.0s |
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Auto energy saving |
V/F curve is optimized automatically based on the load condition, achieving auto energy-saving run |
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AVR |
Keeps the output voltage constant automatically when the voltage of power grid fluctuates |
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Auto carrier regulation |
Carrier frequency is regulated automatically based on the load characteristic and ambient temperature |
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Random PWM |
Regulates the tone of the motor noise |
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Droop control |
Applicable to cases where multiple inverters drive the same load |
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Momentary power failure |
Ensures uninterrupted operation by controlling the DC link voltage |
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Dynamic braking |
Built-in braking unit and external braking resistor for models of 15kW or less |
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DC braking |
Braking time: 0.0～60.0s Braking current: 0.0～100.0％ of rated current |
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PFI |
Highest input frequency: 50kHz |
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PFO |
Open-collector pulse(square wave) output of 0～50kHz, programmable |
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Analog input |
2 channels of analog input, voltage or current type, positive or negative |
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Analog output |
2 channels of analog output, 0/4～20mA or 0/2～10V, programmable |
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Digital input |
8 channels of optional multi-function digital input(leakage/source type) |
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Digital output |
2 channels of optional multi-function digital output(leakage/source type); 2 channels of multi-function relay output |
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Communication |
Bulti-in RS485 port, supporting Modbus protocol and USS commands |
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Characteristic functions |
Process PID |
Two sets of PID parameters; multiple correction modes; free PID function |
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Multiple PLC modes |
User can set 8 PLC run modes, with each having up to 48 stages. The mode can be selected by terminals. PLC status can be saved at power failure. |
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Multi-speed select mode |
4 selection modes. Refer to F4-17 |
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User defined menu |
30 user parameters can be defined |
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Parameter display change |
Can display parameters different from the default ones |
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Toreque control |
Torque/speed control can be switched by terminals. Multiple torque setting modes. |
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Zero-servo |
Zero-speed position can be locked |
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High-speed UP/DOWN counter |
Synchronous control, counting in production, stop contol by count and precise position control can be realized |
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High-speed meter counter |
Stop control by length and length indication can be achieved |
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Wobble |
Ensures even winding of textiles |
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Programmable unit |
Comparator, logic unit, trigger, arithmetic unit, filter, multiple-way switch, timer |
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kWh meter timer |
For adjustment of optimal energy saving strategy |
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Protection functions |
Overcurrent, overvoltage, undervoltage, input/output phase loss, output short-circuit, overheating, motor overload, external fault, analog input disconnection, stall prevention, etc. |
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Options |
Braking unit, remote control box, digital I/O expansion board, encoder interface board, analog input expansion board, keypad with copying function or potentiometer, keypad mounting box, keypad extension line,I/O reactor, EMI filter, Profibus-DP module, etc. |
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Ambient |
Service site |
Altitude less than 1000 meters; indoor; no direct sunlight; free of dust,corrosive gases, inflammable gases, oil mist, water vapor, water drops, salt mist, etc. |
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Temperature/humid |
-10～＋40℃/20～90％RH, no condensation |
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Storage temperature |
-20～＋60℃ |
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Vibration |
Less than 5.9m/s2（0.6g） |
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Structure |
Protection degree |
IP20 |
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Cooling method |
Forced air cooling, with fan control |
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