Yaskawa AC Drive - A1000 Option Hz High Frequency Custom - Manual (Page 8)

3 Summary of Modifications from Standard Software
8 YASKAWA TM.A1000SW.056 YASKAWA AC Drive - A1000 Custom Software Supplement
‹ General Precautions
1. The drive should generally be at least two model/capacity sizes larger than the motor.
2. Use only devices designed specifically for operation with a PWM drive.
3. For operation in Open Loop Vector Control for PM motors, contact Yaskawa.
4. When operating a PM motor at high frequency, an AC reactor should be installed between the motor and drive to
reduce drive and motor heating.
PM Motor Settings
Number of digits past the decimal
point are as follows:
E5-05 (Motor Stator Resistance): 4 digits
E5-06 (Motor d-Axis Inductance): 3 digits
E5-07 (Motor q-Axis Inductance): 3 digits
E5-08 (Motor q-Axis inductance for Extended Observer):
3 digits
E5-09 (Motor Induction Voltage Constant 1): 2 digits
E5-24 (Motor Induction Voltage Constant 2): 2 digits Number of digits past the decimal
point are as follows:
E5-05 (Motor Stator Resistance): 3 digits
E5-06 (Motor d-Axis Inductance): 2 digits
E5-07 (Motor q-Axis Inductance): 2 digits
E5-08 (Motor q-Axis inductance for Extended
Observer): 2 digits
E5-09 (Motor Induction Voltage Constant 1): 1 digit
E5-24 (Motor Induction Voltage Constant 2): 1 digit
Deleted Functions
• Estimation type Speed Search
• High Slip Braking (HSB)
• Energy Saving Control
• KEB
• Overexcitation Deceleration
Refer to Modified Parameters on page 9 .
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Changed Item High Frequency Software Standard Software