Faulhaber incremental shaft encoders both indicate and control shaft velocity, direction of rotation and positioning.
Features of encoder range:
Very low current
Precise signal resolution
Ideal for low voltage battery operation
Insensitive to magnetic interference
Extremely light and compact
Highly compact design
Available in many combinations
Encoders come in the following technologies:
IE2-16 up to IE2-1024: Can be used with DC andBL motors from 13 up to 38mm
IE3-1024 (L): Can be used with DC andBL motors from 22 up to 44mm
IEM3-1024: Only with newBL motors from 8 up to 10mm
AES-4096: Only with BX4 motors from 22 up to 32mm
AESM-4096: Only with new BL motors from 8 up to 10mm
HXM3-64: DC and BL motors in diameter 6mm
HEM3-256:DC and BL motors from 8 up to 12mm
PA2-50/100:DC and BL motors from 6 up to 12 mm
HEDS, HEDM, HEDL: Can be used for DC and BL motors from 22 up to 35 mm
PE22-120: Used with stepper motors in diameter 22 mm
40B: only with BL motor 4490
Products and data sheet are in the Faulhaber catalogue (see file for download below)
Integrated Magnetic Encoder AEMT-12-16L
FAULHABER has expanded its encoder portfolio by adding multiturn absolute encoders with line driver. The encoder can be combined with brushless DC-motors of the B, BX4 and BP4 series.
The encoder is connected with a ribbon cable; suitable connectors are available. Different filter modules and adapters for connecting to FAULHABER Speed and Motion Controllers are also available.
The advantages at a glance:
Cable length of up to 5 m
Efficient operation with low torque ripple
No reference run after switch on necessary
In combination with brushless DC-servomotors, the new magnetic AEMT-12/16 L absolute encoder delivers absolute angle information with a pre-set multiturn resolution of 16 bits (65536 revolutions) and a single turn resolution of 12 bits (4096 steps) for commutation, speed control and motion control.
This position data can be queried by a SSI Interface with BiSS-C Protocol. With a line driver, the interface is designed differentially and is based on the RS422 standard. It is thereby possible to position the motor/encoder unit up to five metres away from the controller.
The BiSS-C protocol is designed for industrial applications in which high transmission speed, flexibility and minimal implementation effort are required.
Digital Hall sensors for commutation of the motors are no longer generally needed. With AEMT, sine commutation is possible as is very efficient operation of the motor with minimal torque ripple.
The encoder can be connected to a main power supply as well as a backup battery or alternative energy storage. If the main power supply is switched off, the backup battery will still provide the encoder with enough energy to detect motor revolutions and increment or decrement the multiturn count accordingly.
This way, when switching on the main supply again, the count is still valid. A new reference run is not necessary. The multiturn count can be reset via an additional interface pin during start-up.