Product characteristics
Brushless three-phase synchronous motors
Brushless three-phase synchronous motors have no electrical contact between rotor and stator. This means that the motor has no slip rings or commutators, which facilitates longer service life of the motor.
Neodymium permanent magnets
The magnets installed in the motor are permanent magnets. Neodymium is a hard magnetic material that enables the precise and highly dynamic positioning of the motors.
Three-phase stator winding
The three-phase winding in the stator reduces the amount of material required while maintaining the same electrical output. All phase angles are 120°.
Electronic commutation in the servo drive
The commutation of the motor is done electronically. The three coil turns are supplied from a bridge circuit.
Thermal contacts
A thermal contact LPTC-600 is installed to monitor and measure the winding temperature and to protect the motor against overheating. This can be read out by the user. No thermal contact is installed in the AM801x series.
Temperature warning and switch-off:
- Motor warning temperature at 120 °C
- Motor switch-off temperature at 140 °C
Holding brake [+]
The motors can be equipped as an option with permanent magnet holding brakes. These operate according to the quiescent current principle and open at a voltage of 24 VDC +6/-10 % with > 10,000,000 switching cycles.
The installed holding brake is not suitable for service braking, since there is no monitoring for wear and functionality by the servo drive and the configuration. This applies in particular to vertical axes.
 | Safety measures for vertical axes must be applied When operating vertical axes, appropriate additional measures must be taken; for example, including but not only:
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