Product characteristics
Compact design
The integrated servo drives of the AMI81xx series combine servomotor, servo drive and fieldbus connection in a space-saving design for all motion requirements in the power range up to 400 W.
Machines without control cabinet
You can place the integrated servo drives of the AMI81xx series as EtherCAT slave directly at the machine without control cabinet and without upstream I/O level. This allows compact machines to be realized without a control cabinet.
Neodymium permanent magnets
The magnets installed in the servo drives are permanent magnets. Neodymium is a hard magnetic material that enables the precise and highly dynamic positioning of the servo drives.
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 power section
The servo drives are commutated 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 servo drive against overheating. This can be read out by the user.
Temperature warning and switch-off:
- Warning temperature at 120 °C
- Switch-off temperature at 140 °C
Holding brake [+]
The servo drives 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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