54 YASKAWA ELECTRIC TOEP C710616 50B YASKAWA AC Drive - A1000 6-Phase/12-Pulse Input Installation Guide
A.2 Drive Specifications
A.2 Drive Specifications
Note: 1. Perform rotational Auto-Tuning to obtain the performance specifications given below.
2. For optimum performance life of the drive, install the drive in an environment that meets the required specifications.
Item Specification
Control
Characteristics
Control Method
The following control methods can be set using drive parameters:
• V/f Control (V/f)
• V/f Control with PG (V/f w/PG)
• Open Loop Vector Control (OLV)
• Closed Loop Vector Control (CLV)
• Open Loop Vector Control for PM (OLV/PM)
• Advanced Open Loop Vector Control for PM (AOLV/PM)
• Closed Loop Vector Control for PM (CLV/PM)
Frequency Control Range 0.01 Hz to 400 Hz
Frequency Accuracy
(Temperature Fluctuation)
Digital input: within ±0.01% of the max output frequency (-10°C to +40°C)
Analog input: within ±0.1% of the max output frequency (25°C ±10°C)
Frequency Setting
Resolution
Digital inputs: 0.01 Hz
Analog inputs: 1/2048 of the maximum output frequency setting (11 bit plus sign)
Output Frequency
Resolution
0.001 Hz
Frequency Setting Signal -10 V to 10 V, 0 V to 10 V, 0 mA to 20 mA, 4 mA to 20 mA, Pulse Train Input
Starting Torque <2>
V/f, V/f w/PG: 150% at 3 Hz
OLV: 200% at 0.3 Hz <1>
CLV, AOLV/PM, CLV/PM: 200% at 0.0 r/min <1>
OLV/PM: 100% at 3 Hz
Speed Control Range <2>
V/f, V/f w/PG: 1:40
OLV: 1:200
CLV, CLV/PM: 1:1500
OLV/PM: 1:20
AOLV/PM: 1:100
Speed Control Accuracy
<2>
OLV: ±0.2% (25°C ±10°C)
CLV: ±0.02% (25°C ±10°C)
Speed Response <2>
OLV, OLV/PM, AOLV/PM: 10 Hz
CLV, CLV/PM: 50 Hz
Torque Limit
Parameters setting allow separate limits in four quadrants
(available in OLV, CLV, AOLV/PM, CLV/PM)
Accel/Decel Time
0.0 s to 6000.0 s (4 selectable combinations of independent acceleration and deceleration
settings)
Braking Torque
Approx. 20% (approx. 125% when using braking resistor)
<3>
• Short-time decel torque <4> : over 100% for 0.4/ 0.75 kW motors, over 50% for 1.5 kW
motors, and over 20% for 2.2 kW and above motors <5> (overexcitation braking/High Slip
Braking: approx. 40%)
• Continuous regenerative torque: approx. 20%
<5> (approx. 125% with dynamic braking
resistor option
<3> : 10% ED, 10 s)
V/f Characteristics User-selected programs and V/f preset patterns possible
Main Control Functions
Torque Control, Droop Control, Speed/torque Control Switching, Feed Forward Control, Zero
Servo Function, Momentary Power Loss Ride-Thru, Speed Search, Overtorque/Undertorque
Detection, Torque Limit, 17 Step Speed (max), Accel/decel Switch, S-curve Accel/decel, 3-wire
Sequence, Autotuning (rotational, stationary tuning), Dwell, 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 Comm. (RS-
422/RS-485 max, 115.2 kbps), Fault Restart, Application Presets, DriveWorksEZ (customized
function), Removable Terminal Block with Parameter Backup Function, Online Tuning, KEB,
Overexcitation Deceleration, Inertia (ASR) Tuning, Overvoltage Suppression, High Frequency
Injection.
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