1-channel incremental encoder interface, 32 bit EJ5151

EJ5151 | 1-channel incremental encoder interface, 32 bit

The EJ5151 EtherCAT plug-in module is an interface for connecting a 24 V incremental encoder via the signal distribution board. With the EJ5151, a 32 bit counter with a quadrature decoder and a 32 bit latch for the zero pulse can be read, set or enabled. Alternatively, the EJ5151 can be used as up/down counter with gate.

The EJ5151 supports the synchronous reading of the encoder value, together with other input data, into the EtherCAT system via high-precision EtherCAT distributed clocks (DC). In addition, a timestamp for the last captured incremental edge can be output. Due to the optional interpolating microincrement function, the EJ5151 can supply even more precise axis positions for dynamic axes.

Technical data EJ5151
Technology incremental encoder interface 24 V DC
Number of channels 1
Sensor inputs 1
Encoder connection A, B, C, gate/latch input 24 V DC, EN 61131-2, type 1, “0“: < 5 V DC, “1“: > 15 V DC, typ. 5 mA
Encoder operating voltage 24 V DC
Input frequency max. 400,000 increments/s (with 4-fold evaluation)
Quadrature decoder 4-fold evaluation
Commands read, set, latching
Supply voltage electronics 24 V DC (via signal distribution board)
Resolution 1/256 bit microincrements
Current consumption E-bus typ. 100 mA
Counter 1 x 16/32 bit switchable
Distributed clocks yes
Input signal 24 V DC
Special features gate or latch function, microincrements, timestamping of edges, period duration and frequency measurement, up/down counters
Dimensions (W x H x D) 12 mm x 66 mm x 55 mm
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/see documentation
Approvals/markings CE