Product Information
‑22‑
Table 1–11 Technical specifications of the drive unit
Item Specifications
Basic parameters Load type Motor type: Synchronous motor/Asynchronous motor
Output frequency resolution Digital setting: 0.01 Hz
Analog setting: Maximum frequency x 0.025%
Carrier frequency V/f control: 0.8 kHz to 15 kHz (6 kHz by default)
SVC: 2 kHz to 7 kHz (6 kHz by default)
The carrier frequency is automatically adjusted based on
heatsink temperature.
Motor type and control mode Three‑phase asynchronous motor: V/f control, sensorless
vector control (SVC)
PMSM: SVC
Speed range 1:50 (asynchronous motor V/f control)
1:100 (asynchronous motor, SVC)
Speed control accuracy ±1.0% (V/f control)
±0.5% (SVC)
Speed fluctuation ±0.5% (SVC)
Torque response < 20 ms (SVC)
Torque control accuracy ±5% (SVC) (above 10 Hz)
Torque control mode SVC
Overload capability 1 h for 115% of the rated current, 1 min for 150% of the
rated current, 2s for 178% of the rated current
Torque boost Automatic boost; customized boost 0.1% to 30.0%
V/f curve Linear V/f curve; Multi‑point V/f curve; Square V/f curve;
Complete V/f separation; Half V/f separation
Protections Short circuit to ground upon power‑on, inter‑phase short
circuit, motor overtemperature (PTC), drive overcurrent,
drive overload (output power limit), motor overload, drive
overvoltage, drive undervoltage, drive stall in SVC mode,
drive overtemperature, output phase loss, communication
fault, current detection fault, motor auto‑tuning fault,
EEPROM reading‑writing fault, locked‑rotor protection,
excessive speed deviation, stall alarm
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