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Control Methods
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Frequency Control Range
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V/f, OLV, and OLV/PM: 0.01 Hz to 590 Hz
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AOLV/PM: 0.01 Hz to 270 Hz
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EZOLV: 0.01 Hz to 120 Hz
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Frequency Accuracy
(Temperature Fluctuation)
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Digital inputs: ±0.01% of the maximum output frequency (-10 °C to +40 °C (14 °F to 104 °F))
Analog inputs: In ±0.1% of the maximum output frequency (25 °C ±10 °C (77 °F ±18 °F))
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Frequency Setting Resolution
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Digital inputs: 0.01 Hz
Analog inputs: 1/2048 of the maximum output frequency (11-bit)
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Output Frequency Resolution
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0.001 Hz
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Frequency Setting Signal
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Main speed frequency reference: 0 Vdc to 10 Vdc (20 kΩ), 4 mA to 20 mA (250 Ω), 0 mA to 20 mA (250 Ω)
Main speed reference: Pulse train input (maximum 32 kHz)
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Starting Torque
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Note:
Correctly select the drive and motor capacity for this starting torque in these control methods:
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Speed Control Range
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Zero Speed Control
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Possible in AOLV/PM control methods.
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Torque Limits
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You can use parameter settings for different limits in four quadrants in these control methods:
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Acceleration and Deceleration Times
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0.0 s to 6000.0 s
The drive can set four pairs of different acceleration and deceleration times.
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Braking Torque
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Approximately 20% without a resistor
Approximately 125% with a dynamic braking option
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Short-time average deceleration torque
Motor output 0.1/0.2 kW: over 150%
Motor output 0.4/0.75 kW: over 100%
Motor output 1.5 kW: over 50%
Motor output 2.2 kW and larger: over 20%, Overexcitation Braking/High Slip Braking allow for approximately 40%
| Warning |
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Set L3-04 = 0 [Stall Prevention during Decel = Disabled] when you operate the drive with:
- a regenerative converter
- regenerative unit
- braking resistor
- braking resistor unit.
If you set the parameter incorrectly, the drive can decelerate for too long and cause serious injury or death.
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Note:
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Short-time average deceleration torque refers to the necessary torque to decelerate the motor (uncoupled from the load) from the rated speed to zero. Motor characteristics can change the actual specifications.
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Motor characteristics change the continuous regenerative torque and short-time average deceleration torque for motors 2.2 kW and larger.
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V/f Characteristics
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Select from 15 pre-defined V/f patterns, or a user-set V/f pattern.
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Main Control Functions
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Feed Forward Control, Restart After Momentary Power Loss, Speed Search, Overtorque Detection, Torque Limit, 17 Step Speed (max.), Accel/Decel Switch, S-curve Acceleration/Deceleration, 3-wire Sequence, Auto-Tuning (Rotational and Stationary), Dwell Function, Cooling Fan ON/OFF Switch, Slip Compensation, Torque Compensation, Frequency Jump, Upper/Lower Limits for Frequency Reference, DC Injection Braking at Start and Stop, Overexcitation Braking, High Slip Braking, PID Control (with Sleep Function), Energy Saving Control, MEMOBUS/Modbus Communications (RS-485 max, 115.2 kbps), Auto Restart, Application Presets, DriveWorksEZ (customized functions), Parameter Backup Function, Online Tuning, KEB, Overexcitation Deceleration, Overvoltage Suppression, High Frequency Injection, etc.
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