This parameter is not the efficiency of the motor but the ratio of the magnetizing current
to the total phase current of the motor. Lower power factor values will increase the
magnetizing current to the motor and thus increase the field strength resulting in tighter
control of the motor. Higher values decrease the magnetizing current and the field
strength.
If not known, a value of is recommended for high slip motors and a value of
is recommended for gearless induction motors.
This parameter is not applicable to PM synchronous motors and therefore will not appear.
LM07 Motor Torque
The rated motor torque in lb-ft or Nm, depending on selection of US02 System Units.
LM07 is writable for both motor types: permanent magnet and induction.
For PM motors the torque value must be entered and is used to establish the torque
constant. Enter the rated name plate torque.
Since the desired unit for rated motor torque may not appear on the motor nameplate,
below are the appropriate conversions:
HP x 5258 / Rated Speed (rpm)
kW x 7043 / Rated Speed (rpm)
HP x 7125 / Rated Speed (rpm)
kW x 9543 / Rated Speed (rpm)
LM08 Electric Motor Protection
This parameter is used to activate and select the type of motor overload function.
Depending on the setting of this parameter, the elevator drive
Electric Motor Protection
The trigger level is established in parameter LM09 Electric Motor Protection Current.
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