Reach your destination quickly and precisely

HTx and ETx encoders keep automated guided vehicles on track

Robust and versatile encoders from MEGATRON optimize the intralogistics of autonomous transport vehicles. Whether with integrated CAN bus connection, locally programmable teach-in function or energy harvesting: the encoders offer maximum flexibility for the respective application. Encoders from the ETx and HTx series ensure that autonomous vehicles reach their destination quickly and reliably.

MEGATRON encoders not only detect the steering angle, but also the speed of automated guided vehicles (AGVs). The kit encoders of the ETx25K series are particularly suitable for small AGVs as they require very little space with an installation height of only 8 mm. ETx25K encoders are available in both single-turn and multi-turn versions. They offer digital signal processing with magnetic, gradient-based sensing. The encoders are available with a choice of analogue (12 bit), incremental or serial (SSI or SPI) interface and meet the requirements of IP67 protection. A wide range of electronics for different power supplies and many electrical interfaces for data output allow the encoders to be optimally integrated into the application.

Robust and reliable
The robust HTx36 sensors from MEGATRON are ideal for use in larger AGVs such as autonomous forklifts. These encoders not only have a solid metal housing, but also a stainless steel shaft with double ball bearings, a durable bearing and resistance to shock and vibration. HTx36 encoders can therefore withstand high axle loads and actuation speeds and are available as absolute or incremental encoders.

The HTx36E absolute encoders operate with a resolution of 16 bits (singleturn) or 43 bits (multiturn) and are supplied with battery- and gearless true power-on technology (energy harvesting). This technology ensures that the encoders reliably detect the number of revolutions even when de-energized. Digital communication interfaces such as CANopen, SAE J1939 and SSI also ensure optimum integration of the encoder into the application. The AGV manufacturer receives an encoder with a pre-programmed angular range that is precisely customized to their vehicle. This saves costs in production and in programming the electronics.

Seamless application monitoring
The HTx36E with CAN bus also allows continuous monitoring of the encoder. For example, the encoder issues a warning if the shaft speed is exceeded, if the temperature range is exceeded, if there is a hardware defect (EEPROM) or if CAN is overrun. High single and multi-turn resolution ensures finely graded measurement results.

With the incremental version HTI36E, the user can freely select the number of pulses from 1 to 16,384 pulses per revolution in increments of 1 and set the index pulse to the desired position. The encoders are available with TTL or HTL output.

One encoder for multiple vehicle types
While the HTx36E encoders with CAN bus offer various setting options in the LLS configuration mode, the HTx36PM absolute encoders with analogue output feature multiturn electronics with a so-called teach-in function for flexibility in the field. This allows the user, for example, to set the start and end values of the output signal directly when installing the encoder using a simple programming device. This eliminates mechanical tolerances. On the other hand, the same encoder variant can be parameterized for different requirements, e.g. angular range, direction of rotation and power supply.

HTx and ETx encoder in AGV