Product Description:

The ECPNC3-1 module is a multi-channel position counter produced by B&R Automation within the ECP Multi Control Modules series. It interfaces incremental encoders and forwards position and analog feedback to the main CPU in distributed motion systems used on packaging, assembly, and material-handling lines. By converting edge information into binary counts and scaled voltages, the unit coordinates axis control tasks in real time. This arrangement lets one module handle both position acquisition and analog command output for coordinated motion across compact distributed control racks.

The module offers an analog output with 10-bit plus sign resolution, allowing the controller to transmit bipolar setpoints with fine step control. The output stage spans ±10 V, so drives that expect industry-standard analog references can be driven directly. For digital feedback, the internal counter stores position values in a 24-bit binary register, giving a numerical range suitable for high-resolution linear or rotary encoders. Incoming quadrature signals are accepted up to 200 kHz, which supports fast encoder pulse streams in motion applications. Total power drawn from the internal 8-volt rail stays within 1.6 W, which helps limit heat buildup inside compact control cabinets.

Separate sensor supplies are provided: the 15-volt rail can source up to 500 mA for TTL or HTL encoders, while a 5-volt rail rated at 250 mA powers RS422 types. Signal lines may be routed as far as 50 m when shielded cable is used, and they terminate on a front-panel 9-pin D-type connector. Input thresholds range from 2.4 to 15 VDC, with sink currents of 5 mA at 15 V and 2 mA at 5 V, so the module accepts most incremental encoder formats. Because there is no galvanic isolation, the encoder ground must share the system reference to avoid offset errors. A 50 kHz maximum single-ended input frequency is also available for slower sensors.