Parameter Details
12
12.6 E: Motor Parameters
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 835
■ 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.
0.0 mV/(rad/sec)
(0.0 - 2000.0 mV/(rad/s))
Set this parameter when you use an IPM motor with derated torque or an IPM motor with constant torque.
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.
200 V Class:
100.0 mV/min
-1
400 V Class:
200.0 mV/min
-1
(0.0 - 6500.0 mV/min
-1
)
Set this parameter when you use an SPM 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
■ E5-25: Polarity Estimation Timeout
No.
(Hex.)
Name Description
Default
(Range)
E5-25
(035E)
Expert
Polarity Estimation Timeout
Sets the function that switches polarity for initial polarity estimation. Usually it is not necessary to
change this setting.
0
(0, 1)
When “Sd = 1” is shown on the motor nameplate or test report for Yaskawa motors, set this parameter to 1.
0 : Disabled
1 : Enabled
To Next Page
Loading...
