Product Description:

The CSH02.1B-ET-EC-EC-L3-EM-NN-FW is an advanced motion-control module manufactured by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Mounted inside an IndraDrive stack, the card executes current, velocity, and position control algorithms that synchronize multiple servo axes in automated cells, packaging lines, and machine tools. Its Multi-Ethernet interface enables direct connection to common real-time networks, allowing the drive to exchange setpoints and status data with supervisory PLCs and SCADA systems without protocol converters.

Three high-resolution analog channels are present, and their conversion depth is 14 bit, which helps reduce quantization error on feedback signals. The board provides 3 analog inputs for process variables such as load cells, while 2 analog outputs can retransmit scaled values to recorders or auxiliary drives. Discrete control is handled by 11 digital inputs and 5 configurable digital I/O lines that can be programmed as either sources or sinks. For time-critical edge capture, the hardware includes 2 probe inputs. Three optional slots accept expansion cards for encoder feedback or safe-motion functions, and the built-in safe torque off channel can deliver 350 mA to external safety relays. Supported fieldbuses include sercos III, EtherCAT, EtherNet/IP, and PROFINET IO.

The drive’s current loop updates every 62.5 µs, giving tight torque regulation for high-inertia axes. Its encoder converter uses a 12-bit A/D width, and the signal chain accommodates sine inputs up to 400 kHz and square-wave tracks up to 1000 kHz, allowing high-resolution encoders to be processed without aliasing. Two 100Base-TX Ethernet ports provide a daisy-chain topology that maintains deterministic traffic across the selected fieldbus. The Multi-Ethernet hardware operates independently of the internal SPI links that serve daughter cards in the optional slots, so expanding local I/O does not disturb network timing.