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9.4 Drive Specifications
434 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
9.4 Drive Specifications
Note:
• Perform Rotational Auto-Tuning to achieve the specifications listed for OLV, CLV, and AOLV.
• Install the drive in an environment that meets the required specifications for optimum product life.
Table 9.6 Control Characteristics
Item Specification
Control Method
• V/f Control
• V/f Control w/ PG
• Open Loop Vector Control
• Closed Loop Vector
• Advanced Open Loop Vector
Frequency Control
Range
• Advanced Open Loop Vector Control (AOLV): 0.01Hz - 120 Hz
• Closed Loop V/f Control(CL-V/f), Closed Loop Vector Control (CLV): 0.01Hz - 400 Hz
• V/f Control (V/f), Open Loop Vector Control (OLV): 0.01 Hz - 590 Hz
Frequency Accuracy
(Temperature
Fluctuation)
Digital inputs: Within ±0.01% of the maximum output frequency (-10 °C to +40 °C (14 °F to 104 °F))
Analog inputs: Within ±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 (20 kΩ), 0 Vdc to 10 Vdc (20 kΩ), 4 mA to 20 mA (250 Ω), 0 mA to 20 mA (250 Ω)
Starting Torque
• V/f Control (V/f): 150%/3 Hz
• Closed Loop V/f Control (CL-V/f): 150%/3 Hz
• Open Loop Vector Control (OLV): 200%/0.3 Hz
• Closed Loop Vector Control (CLV): 200%/0 min -1
• Advanced Open Loop Vector (AOLV): 200%/0.3 Hz
Note:
Drive capacity must selected appropriately to obtain this starting torque under Open Loop Vector Control (OLV), Closed Loop Vector Control (CLV),
and Advanced Open Loop Vector Control (AOLV).
Speed Control Range
• V/f Control (V/f): 1:40
• Closed V/f Control (CL-V/f): 1:40
• Open Loop Vector Control (OLV): 1:200
• Closed Loop Vector Control (CLV): 1:1500
• Advanced Open Loop Vector Control (AOLV): 1:200
Zero Speed Control Possible in Closed Loop Vector Control (CLV).
Torque Limits
Parameter settings allow separate limits in four quadrants in Open Loop Vector Control (OLV), Closed Loop Vector Control (CLV), and Advanced Open
Loop Vector Control (AOLV).
Accel & Decel Time
0.0 s to 6000.0 s
The drive allows four selectable combinations of independent acceleration and deceleration settings.
Braking Torque
Approx. 20%
Approx. 125% with a dynamic braking option
• Short-time average deceleration torque
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%, approximately 40% with overexcitation braking
• Continuous regenerative torque: Approx. 20%. Dynamic braking option allows for approximately 125%, 10% ED, 10 s
Note:
• Models 2003 to 2115 and 4002 to 4150 have a braking transistor.
• Set L3-04 = 0 [Stall Prevention during Decel = Disabled] when using a regenerative converter, regenerative unit, braking unit, braking resistor, or
braking resistor unit. The drive may not stop within the designated deceleration time if L3-04 = 0 .
• Short-time average 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 average deceleration torque for motors 2.2 kW and larger vary depending on motor characteristics.
V/f Characteristics Select from 15 predefined V/f patterns, or a user-set V/f pattern.
Main Control
Functions
Droop Control, Feed Forward Control, Zero Servo Function, Torque Limit, 9 Step Speed (max.), Accel/Decel Switch, S-curve Accel/Decel, Auto-Tuning
(Rotational and Stationary), 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, MEMOBUS/Modbus Communication (RS-485: max. 115.2 kbps),
Removable Terminal Block with Parameter Backup Function, Online Tuning, Overexcitation Deceleration, Inertia (ASR) Tuning, Crane Sequence.
Table 9.7 Protection Function
Item Specification
Motor Protection
Electronic thermal overload protection
Momentary
Overcurrent
Protection
Drive stops when the output current is more than 200% of the rated output current.