Specifications of the Yaskawa A1000 Inverter:

• Overload Tolerance: Normal Duty Rating: 120% of rated output current for 60s, Heavy Duty Rating: 150% of rated output current for 60s
• Carrier Frequency: 2 kHz (user-set, 2 to 15 kHz possible)
• Maximum Output Frequency: 400 Hz
• Control Methods: Open Loop Vector Control (Current Vector), V/f Control, PM Open Loop Vector Control (for SPM and IPM motors)
• Frequency Control Range: 0.01 to 400 Hz
• Frequency Setting Signal: Main frequency reference: 0 to +10 VDC (20 kΩ), 4 to 20 mA (250 Ω), 0 to 20 mA (250 Ω). Main speed reference: Pulse Train Input (max. 32 kHz)
• Starting Torque: 200%/0.5 Hz (assumes Heavy Duty rating IM of 3.7 kW or less using Open Loop Vector Control), 50%/6 Hz (assumes PM Open Loop Vector Control)
• Acceleration and Deceleration Times: 0.0 to 6000.0s (4 selectable combinations of independent acceleration and deceleration settings)
• V/f Characteristics: User-selected programs, V/f preset patterns possible