11.6 E: Motor Parameters
816 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
■ E5-07: PM q-axis Inductance (mH/phase)
No.
(Hex.)
Name Description
Default
(Range)
E5-07
(032F)
PM q-axis Inductance
(mH/phase)
Sets the PM motor q-axis inductance.
Determined by E5-01
(0.00 - 600.00 mH)
PM motor Auto-Tuning automatically sets this parameter to the value of [PM Motor q-Axis Inductance].
Note:
Do not change the setting calculated by Auto-Tuning unless it is necessary.
■ E5-09: PM Back-EMF Vpeak (mV/(rad/s))
No.
(Hex.)
Name Description
Default
(Range)
E5-09
(0331)
PM Back-EMF
Vpeak (mV/(rad/s))
Sets the peak value of PM motor induced voltage.
Determined by E5-01
(0.0 - 2000.0 mV/
(rad/s))
Set this parameter when you use an IPM motor with derated torque (SSR1-series) or an IPM motor with constant
torque (SST4-series).
PM motor Auto-Tuning automatically sets this parameter to the value of [Back-EMF Voltage Constant (Ke)].
When E5-01 = FFFF, only set E5-09 or E5-24 [PM Back-EMF L-L Vrms (mV/rpm)] as the induced voltage
constant.
Note:
When you set this parameter, also set E5-24 = 0.0. The drive will detect oPE08 [Parameter Selection Error] in these conditions:
• E5-09 = 0.0 and E5-24 = 0.0
• E5-09 ≠ 0.0 and E5-24 ≠ 0.0
■ E5-11: Encoder Z-Pulse Offset
No.
(Hex.)
Name Description
Default
(Range)
E5-11
(0333)
Encoder Z-Pulse
Offset
Sets the encoder Z-pulse offset.
0.0 degrees
(-180.0 - +180.0
degrees)
The drive uses the PM motor parameter settings and PM Stationary Auto-Tuning to set E5-11 to the value input
for “Encoder Z-Pulse Offset” automatically. The drive uses Z Pulse Offset Tuning or the Rotational Auto-Tuning
to set E5-11.
■ E5-24: PM Back-EMF L-L Vrms (mV/rpm)
No.
(Hex.)
Name Description
Default
(Range)
E5-24
(0353)
PM Back-EMF L-L
Vrms (mV/rpm)
Sets the RMS value for PM motor line voltage.
Determined by E5-01
(0.0 - 6500.0 mV/
min
-1
)
Set this parameter when you use an SPM motor (SMRA-Series Pico motor).
PM motor Auto-Tuning automatically sets this parameter to the value of [Back-EMF Voltage Constant (Ke)].
When E5-01 = FFFF, only set E5-09 [PM Back-EMF Vpeak (mV/(rad/s))] or E5-24 as the induced voltage
constant.
Note:
When you set this parameter, also set E5-09 = 0.0. The drive will detect oPE08 [Parameter Selection Error] in these conditions:
• E5-09 = 0.0 and E5-24 = 0.0
• E5-09 ≠ 0.0 and E5-24 ≠ 0.0
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