TWK-ELEKTRONIK GMBH

A positive-locking mechanical connection between the cus-tomer’s shaft and the sensor shaft ensures that the magnet in the sensor shaft precisely reflects the rotation of the cus-tomer’s shaft. With the TBN model, one rotation (i.e. max. 16,384 steps) is recorded.With the subsequent absolute transmission, the TRN shaft encoder reaches a measuring range of up to 4096 rotations. The position and speed values (PDO - Process Data Object) are output via the CANopen protocol.

Robust case either in seawater resistant aluminum or in stainless steel - shaft in stainless steel - rotating components with permanent magnet in front chamber - electronic circuit with ASiC and Hall elements and interface components fitted within main chamber, separated from rotating components by a metallic wall - integral counter for the acquisition of revolutions, with non - volatile storage - optional potting against water jets (IP 69K) - electrical connections via lead exit (with connector for testing). Note: The device restores the position value in case the supply voltage is cut off, provided that the shaft is not deflected by more than ± 90° during the interruption of the supply voltage.

Robust case either in seawater resistant aluminum or in stainless steel - shaft in stainless steel - rotating components with permanent magnet in front chamber - electronic circuit with ASiC and Hall elements and interface components fitted within main chamber, separated from rotating components by a metallic wall - integral counter for the acquisition of revolutions, with non - volatile storage - optional potting against water jets (IP 69K) - electrical connections via lead exit (with connector for testing). Note: The device restores the position value in case the supply voltage is cut off, provided that the shaft is not deflected by more than ± 90° during the interruption of the supply voltage.

Robust case with wall thickness of 5 mm either in seawater resistant aluminum or in stainless steel - shaft in stainless steel - rotating components with permanent magnet in front chamber - electronic circuit with ASiC and Hall elements and interface components fitted within main chamber, separated from rotating components by a metallic wall - integrated absolute multiturn gearbox for the acquisition of revolutions - optional potting against water jets (IP 69K) - electrical connections via round plug M12x1 or lead exit.

Robust case either in seawater resistant aluminum or in stainless steel - shaft in stainless steel - rotating components with permanent magnet in front chamber - electronic circuit with ASiC and Hall elements and interface components fitted within main chamber, separated from rotating components by a metallic wall - integral counter for the acquisition of revolutions, with non - volatile storage - optional potting against water jets (IP 69K) - electrical connections via lead exit (with connector for testing). Note: The device restores the position value in case the supply voltage is cut off, provided that the shaft is not deflected by more than ± 90° during the interruption of the supply voltage.

Recording of the angular position and revolutions by means of Hall sensors - absolute multiturn transmission for up to 4096 revolutions - data output plus parameterisation and diagnosis via EtherCAT. Robust housing manufactured from seawater-resistant aluminium or stainless steel - stainless steel shaft - ball bearing with radial shaft seal-sensor circuit consisting of ASIC with Hall elements - electrical connection via M12 connector or cable outlet. In the model series TRK absolute encoders, the EtherCAT interface is integrated according to IEC 61158-2 to 6 and encoder profile CiA DSP406. To achieve the SIL2 level, the TRK/S3 contains a redundant sensor system and additional internal monitoring mechanisms as well as safe communication via the FSoE (failsave over EtherCAT) protocol. The FSoE protocol is implemented according to the Safety over EtherCAT specification ETG.5100 version 1.2.0.

Robust case with wall thickness of 5 mm either in seawater resistant aluminum or in stainless steel - shaft in stainless steel - rotating components with permanent magnet in front chamber - electronic circuit with ASiC and Hall elements and interface components fitted within main chamber, separated from rotating components by a metallic wall - integrated absolute multiturn gearbox for the acquisition of revolutions - optional potting against water jets (IP 69K) - electrical connections via round plug M12x1 or lead exit.

A correct mechanical connection between the customer and sensor shaft ensures that the sensor precisely detects the customer shaft's rotations. A safe position is provided by the plausibility check of two sensor systems. Detected errors are evaluated. The CAN interface outputs the validated position value and speed signal via the CANopen Safety protocol within an SRDO (Safety Relevant Data Object) using 2x2 messages (normal and inverted). The rotary encoder meets the conditions of safety level SIL2 according to IEC 61508 and performance level "d" according to EN13849. The prerequisite of safety-relevant operation is a failsafe master.

The potentiometer grinding track is embedded in a blue plastic housing and is picked up by precious metal grinders. The back of the housing is sealed dust-tight with a cover. The stainless steel drive shaft is mounted in bushings. Up to 3 potentiometer levels can be lined up one behind the other with a common wiper shaft. The levels can be adjusted against each other. Delivery is possible with or without mechanical stops. The PP 27 potentiometers are used as setpoint adjusters and as actual value and reference potentiometers in control and measuring circuits.

The KRP model series rotary encoders are intended for connecting directly to the Ethernet/IP network. Setting the address, baud rate or terminating resistances is not necessary. The IP address is assigned via a BOOTP or DHCP server in the Ethernet/IP network.The integrated 2-fold switch enables the KRP model series rotary encoders to be used in star, tree and line network topologies.