5.5 E: Motor Parameters
224 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
E5-07: Motor q-Axis Inductance (Lq) (for PM Motors)
Sets the q-axis inductance in 0.01 mH units. This parameter is set during the Auto-Tuning process.
E5-09: Motor Induction Voltage Constant 1 (Ke) (for PM Motors)
Sets the induced peak voltage per phase in units of 0.1 mV/(rad/s) [electrical angle]. Set this parameter when using an
IPM motor with derated torque (SSR1 series or equivalent) or an IPM motor with constant torque (SST4 series or
equivalent).
Set the voltage constant with E5-09 or
E5-24 when E5-01 is set to FFFF. This parameter is set during Auto-Tuning for
YASKAWA SSR1 or SST4 series PM motors.
Note: Ensure that E5-24 = 0 when setting parameter E5-09. An alarm will be triggered, however, if both E5-09 and E5-24 are set 0, or
if neither parameter is set to 0. When E5-01 = FFFF, then E5-09 = 0.0.
E5-11 Encoder Z-Pulse Offset () (for PM Motors)
Sets the offset between the rotor magnetic axis and the Z-pulse of the encoder connected. This parameter is set during
Parameter Auto-Tuning for PM motors and during Z Pulse Tuning.
E5-24: Motor Induction Voltage Constant 2 (Ke) (for PM Motors)
Set the induced phase-to-phase rms voltage in units of 0.1 mV/(min
-1
) [mechanical angle]. Set this parameter when using
an SPM Motor (SMRA Series or equivalent).
When E5-01 is set to FFFF, use either E5-09 or
E5-24 for setting the voltage constant. This parameter is set during
Parameter Auto-Tuning for PM motors.
Note: Ensure that E5-09 = 0 when setting parameter E5-24. An alarm will be triggered, however, if both E5-09 and E5-24 are set 0, or
if neither parameter is set to 0. When E5-01 = FFFF, then E5-09 = 0.0.
E5-25: Polarity Switch for Initial Polarity Estimation (for PM Motors)
There is normally no need to change this parameter from the default value.
Switches polarity for initial polarity estimati
on. If “Sd = 1” is listed on the nameplate or in a test report for a YASKAWA
motor, E5-25 should be set to 1.
Note: Available control mode for parameter E5-25 varies by drive model:
CIMR-A2A0004 to 2A0415 and 4A0002 to 4A0675: Available when A1-02 = 6, 7
CIMR-A4A0930 and 4A1200: Available when A1-02 = 5, 6, or 7
Setting 0: “Sd = 1” is not listed
Setting 1: “Sd = 1” is listed
No. Parameter Name Setting Range Default
E5-07 Motor q-Axis Inductance (for PM Motors) 0.00 to 600.00 mH Determined by E5-01
No. Parameter Name Setting Range Default
E5-09 Motor Induction Voltage Constant 1 (for PM Motors) 0.0 to 2000.0 mV/(rad/s) Determined by E5-01
No. Parameter Name Setting Range Default
E5-11 Encoder Z-Pulse Offset (for PM Motors) -180.0 to 180.0 deg 0.0 deg
No. Parameter Name Setting Range Default
E5-24 Motor Induction Voltage Constant 2 (for PM Motors)
0.0 to 6500.0 mV/(min
-1
)
Determined by E5-01
No. Parameter Name Setting Range Default
E5-25 Polarity Switch for Initial Polarity Estimation (for PM Motors) 0, 1 0
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