YASKAWA GA700 Technical Manual page 372

9.5 Drive Specifications
Item
• Open Loop Vector Control: ±0.2% (25 °C ±10 °C (77 °F ±18 °F))
• Closed Loop Vector Control: ±0.02% (25 °C ±10 °C (77 °F ±18 °F))
• Advanced Open Loop Vector Control: ±0.2% (25 °C ±10 °C (77 °F ±18 °F))
• Open Loop Vector Control for PM: ±0.2% (25 °C ±10 °C (77 °F ±18 °F))
• Advanced Open Loop Vector Control for PM: ±0.2% (25 °C ±10 °C (77 °F ±18 °F))
Speed Control
Accuracy
• Closed Loop Vector Control for PM: ±0.02% (25 °C ±10 °C (77 °F ±18 °F))
• EZ Open Loop Vector Control: ±0.2% (25 °C ±10 °C (77 °F ±18 °F))
Note:
Speed control accuracy varies depending on drive installation method and motor type. Contact Yaskawa or your
nearest sales representative for details.
• V/f Control: Approximately 3 Hz
• Closed Loop V/f Control: Approximately 3 Hz
• Open Loop Vector Control: ±10 (25 °C ±10 °C (77 °F ±18 °F))
• Closed Loop Vector Control: 50 Hz (25 °C ±10 °C (77 °F ±18 °F))
• Advanced Open Loop Vector Control: 20 Hz (25 °C ±10 °C (77 °F ±18 °F))
Speed Response
• Open Loop Vector Control for PM: 10 Hz (25 °C ±10 °C (77 °F ±18 °F))
• Advanced Open Loop Vector Control for PM: 40 Hz (25 °C ±10 °C (77 °F ±18 °F))
• Closed Loop Vector Control for PM: 250 Hz (25 °C ±10 °C (77 °F ±18 °F))
• EZ Open Loop Vector Control: 5 Hz (25 °C ±10 °C (77 °F ±18 °F))
Note:
Speed response varies depending on drive installation method and motor type.
Zero Speed
Possible in CLV, AOLV/PM, and CLV/PM.
Control
Torque Control Parameter settings allow separate limits in four quadrants in OLV, CLV, AOLV, AOLV/PM, CLV/PM, EZOLV.
0.0 s to 6000.0 s
Accel and Decel
Times
The drive allows four selectable combinations of independent acceleration and deceleration settings.
Approx. 20%
Approx. 125% with a dynamic braking option
• Short-time average deceleration torque
Motor capacity 0.4/0.75 kW: over 100%
Motor capacity 1.5 kW: over 50%
Motors 2.2 kW and larger: over 20%, Overexcitation Braking / High Slip Braking allow for approx. 40%
• Continuous regenerative torque: Approx. 20%. Dynamic braking option allows for approx. 125%, 10% ED, 10 s
Note:
Braking Torque
• Models 2004 to 2138 and 4002 to 4168 have a built-in braking transistor.
• Set L3-04 = 0 [Decel Stall Prevention Selection = Disabled] to disable Stall Prevention when using a regenerative
converter, regenerative unit, dynamic braking unit, braking resistor, or braking resistor unit. The drive may not stop
within the designated deceleration time if Stall Prevention is not disabled.
• Short-time deceleration torque refers to the torque required to decelerate the motor (uncoupled from the load) from
the rated speed to zero. Actual specifications may vary depending on motor characteristics.
• Continuous regenerative torque and short-time deceleration torque for motors 2.2 kW and larger vary depending on
motor characteristics.
V/f
Select from 15 predefined V/f patterns, or a user-set V/f pattern.
Characteristics
Torque Control, Droop Control, Speed/Torque Control Switching, Feed Forward Control, Zero Servo Function, Restart
After Momentary Power Loss, Speed Search, Overtorque/Undertorque Detection, Torque Limit, 17 Step Speed (max.),
Accel/Decel Switch, S-curve Accel/Decel, 3-wire Sequence, Auto-Tuning (Rotational and Stationary), Dwell, Cooling
Fan ON/OFF Switch, Slip Compensation, Torque Compensation, Frequency Jump, Upper/lower Limits for Frequency
Main Control
Reference, DC Injection Braking at Start and Stop, Overexcitation Braking, High Slip Braking, PID Control (with Sleep
Functions
Function), Energy Saving Control, MEMOBUS/Modbus Communication (RS-485 max, 115.2 kbps), Fault Restart,
Application Presets, DriveWorksEZ (customizable functions), Removable Terminal Block with Parameter Backup
Function, Online Tuning, KEB, Overexcitation Deceleration, Inertia (ASR) Tuning, Overvoltage Suppression, High
Frequency Injection.
Item
Motor Electronic thermal overload protection
Protection
Momentary Drive stops when output current exceeds 200% of the HD output current.
Overcurrent
Protection
372
Specification
Table 9.7 Protection Function
Specification
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual