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153
LM - Motor Data Parameters
This parameter provides a bett
er adjustment of the field weakening torque
curve. Under certain situations, if the input voltage is sagging too low or the
motor has very high slip, it is possible that the voltage limit might be reached.
This can be confirmed by monitoring the Modulation Grade in the Diagnostic
Screen #2 or DG.10. If the modulation grade reaches 100% or more the drive
is operating at the voltage limit and potentially can cause poor control of the
motor.
To prevent this from occurring the drive has an adjustable torque curve which
prevents the voltage limit from being reached. The value of this parameter is
normally calculated when the motor data is loaded in the LM parameters. After
entering the data, this value can be fine tuned.
This parameter is not applicable to PM Synchronous motors and therefore
will not appear.
LM25
Field Weakening
Speed
Torque
Speed (rpm)
Torque Limit
Curve
LC30
1.5xT
Rated
T
Rated
LM24
LM25
Содержание COMBIVERT F5
Страница 1: ...COMBIVERT F5 ELEVATOR DRIVE Reference Manual Version 3 34 0F5LUB K334...
Страница 203: ...203 LP Positioning Parameters LS02 LS01 LP03 LS02 LS01 LP03...
Страница 347: ...Notes...
Страница 348: ......