3 Drive Specifications
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 11
Item Specification
Momentary
Power Loss
Ride-thru
Stops when power loss is longer than 15 ms and continues operation if power loss is shorter than 2 s
(depending on parameter settings).
Note:
• Load size and motor speed can cause the stop time to be shorter.
• Drive capacity will change the continuous operation time. A Momentary Power Loss Recovery
Unit is necessary to continue operation through a 2 s power loss on models 2001 to 2042 and
4001 to 4023.
Heatsink
Overheat
Protection
Thermistor
Braking Resistor
Overheat
Protection
Overheat detection for braking resistor (optional ERF-type, 3% ED)
Stall Prevention
Stall prevention is available during acceleration, deceleration, and during run.
Ground Fault
Protection
Electronic circuit protection
Note:
This protection detects ground faults during run. The drive will not provide protection when:
• There is a low-resistance ground fault for the motor cable or terminal block
• Energizing the drive when there is a ground fault.
DC Bus Charge
LED
Charge LED illuminates when DC bus voltage is more than 50 V.
Table 3.4 Control Characteristics
Item Specification
Control Methods
• V/f Control
• Open Loop Vector
• PM Open Loop Vector
• PM Advanced Open Loop Vector
• EZ Vector Control
Frequency
Control Range
• V/f, OLV, and OLV/PM: 0.01 Hz to 590 Hz
• AOLV/PM: 0.01 Hz to 270 Hz
• EZOLV: 0.01 Hz to 120 Hz
Frequency
Accuracy
(Temperature
Fluctuation)
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))
Frequency
Setting
Resolution
Digital inputs: 0.01 Hz
Analog inputs: 1/2048 of the maximum output frequency (11-bit signed)
Output
Frequency
Resolution
0.001 Hz
Frequency
Setting Signal
Main speed frequency reference: -10 Vdc to +10 Vdc (minimum 15 kΩ), 0 Vdc to 10 Vdc (minimum
15 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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