
The ER5151-0002 EtherCAT Box is an interface for the direct connection of incremental encoders with 24 V DC inputs. A 32/16 bit counter with a quadrature decoder and a 32/16 bit latch for the zero pulse can be read, set or enabled. Interval measurement with a resolution of up to 100 ns is possible.
Due to the optional interpolating microincrement function, the ER5151-0002 can supply even more precise axis positions for dynamic axes. In addition, it supports the synchronous reading of the encoder value together with other input data in the EtherCAT system via high-precision EtherCAT distributed clocks (DC). The encoder is connected via an 8-pin M12 socket.
The EtherCAT Box modules with zinc die-cast housing are ready for use in harsh industrial and process environments. With the fully sealed design and metal surfaces the ER series is ideal for applications requiring enhanced load capacity and protection against weld spatter, for example.
Product status:
regular delivery
Product information
Technical data | ER5151-0002 |
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Protocol | EtherCAT |
Bus interface | 2 x M8 socket, shielded, screw type |
Technology | incremental encoder interface, differential (RS422), single-ended (TTL), counter, pulse generator |
Connection technology | M12 x 1, 5-pin, a-coded |
Number of channels | 1 |
Connection encoder/sensor | M12, screw type, 8-pin |
Encoder operating voltage | 24 V DC, single-ended |
Nominal voltage | 24 V DC (-15 %/+20 %) |
Encoder output current | 0.5 A |
Sensor supply | 24 V DC/0.5 A, short-circuit proof |
Counter | 1 x 16/32 bit switchable |
Limit frequency | 4 million increments/s (with 4-fold evaluation) |
Quadrature decoder | 4-fold evaluation |
Zero-pulse latch | 1 x 16/32 bit switchable |
Commands | read, set, enable |
Distributed clocks | yes |
Power supply connection | feed: 1 x M8 male socket, 4-pin; downstream connection: 1 x M8 female socket, 4-pin |
Current consumption from US | typ. 130 mA + load |
Electrical isolation | 500 V |
Weight | approx. 265 g |
Operating/storage temperature | 0…+55 °C/-25…+85 °C |
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 |
Approvals/markings | CE, UL |
Protect. rating/installation pos. | IP65/66/67 (conforms to EN 60529)/variable |
Housing data | 8 x M8, 4 x M12 |
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Dimensions (W x H x D) | 30 mm x 126 mm x 26.5 mm |
Material | zinc die-cast |
Installation | 2 fixing holes 3.5 mm diameter for M3 |

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