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Selection Guide: Digital Controllers for Piezo Systems
Single-Axis Piezo Controllers | Multi-Axis Piezo Controllers | Modular Piezo Controllers | Digital Piezo Controllers |

Back to Introduction  |  Examples of Custom Designs
State-of-the-art PI digital piezo systems offer several advantages over systems controlled by analog electronics: real-time linearity compensation, elimination of several types of drift, and complex coordinate transformation. Digital controllers also allow virtually instant changes of servo parameters for different load conditions or settling requirements, allowing the piezo system to be run at 100% of its mechanical performance at all time.

PI digital controllers can also download device-specific parameters

and calibration information from ID-chip-equipped nanopositioning stages, facilitating interchangeability of nanomechanisms and controllers, while maintaining the highest level of linearity and precision. However, not all digital controllers are created equal. Poor implementations can add noise and lack certain capabilities of a well-designed analog implementation, such as fast settling time, compatibility with advanced feed-forward techniques, stability and robust operation.

Digital vs. Analog Control...
Download Brochure on Digital Nanopositioning Controllers.

Digital Controllers for Piezo Stages & Systems
Models* Function Voltage
[V]		 Power
[W]		 Sensor Channels Digital Interface
E-712 E-712 Modular Digital Piezo Controller System, up to 6 Axes -30 to 135 6 / 200 Capacitive 3/6 Ethernet/USB/RS-232
E-710 E-710 Digital piezo controller, 3–6 channels, static & dynamic linearization -20 to 120 25 Capacitive 3, 4, 6 RS-232 & IEEE 448,
Parallel
E-725 E-725 Digital piezo controller, 3 channels, stat. & dyn. linearization -30 to 135 25 Capacitive 3 Ethernet,
USB, RS-232
E-753 E-753 Digital high-speed piezo controller -30 to 135 7.5 Capacitive 1 TCP/IP,
RS-232
E-761 E-761 Digital piezo controller, board, 3 channels, sta. & dyn. linearization -20 to 120 5.3 Capacitive 3 PCI Bus
Digital Controllers for PiezoWalk® & Hybrids
E-861 E-861 Networkable controller for NEXACT® linear drives and positioniers -10 to +45 40 Incremental Encoder 1 USB, RS-323
E-755 E-755 Piezo controller for NEXLINE® nano-drive +/-250 15 Capacitive / incremental encoder 1 RS-323
C-702 C-702 Hybrid piezo / DC motor controller 24 - 2 incremental encoder TCP/IP, RS-323

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