For PM motors the current threshold for electronic motor protection is set equal to the
rated motor current in LM03 and therefore does not appear. Additionally, some motors
must be protected from long term peak current to prevent damage to the motor windings.
Refer to LM11 Peak Motor Current below for additional settings and details.
LM10 Motor Overheat Temp.
• If one of the outputs is configured as Motor Overheat warning (LO05, LO10, LO15 or
LO20), the temperature at which the warning is triggered can be set.
• If the motor utilizes a KTY thermistor for temperature detection, then the trigger
temperature can be set directly.
• If the motor utilizes a PTC thermistor or relay for overheat detection, then the drive will
trigger based on the thermistor resistance or open relay, and not the temperature
setting.
Unit: Degree Celsius
LM11 Peak Motor Current Factor
Peak motor current factor for drive overload error for PM motors.
This parameter is not applicable to Induction Motors and therefore will not appear.
For PM motors the current limit for electronic motor protection is set equal to the rated
motor current in LM03. Some motors must be protected from long term peak current to
prevent damage to the motor windings. This parameter is then used to limit the time of
peak current to the motor. If the motor current exceeds this value for longer than 3.0
seco
down operation.
When adjusting the rated motor current in LM03, this value is automatically set to
200% of the LM03 Motor Current. After setting LM03, this parameter can then be
adjusted based on the max. current allowed by the motor manufacturer.
If this parameter is set too low, it may interfere with operation of the elevator
resulting in shut downs, particularly during acceleration or decelerations.
This parameter will NOT limit the maximum current output. It is only used to start
Refer to LC30 Maximum Torque for issues with current limiting.
If the LC30 Maximum Torque is set lower than LM11, peak current will be limited
to the corresponding LC30 value and this function cannot be realized. Likewise, if
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