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PI E-727 - User Manual

PI E-727
240 pages
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User Manual
E727T0005, valid for E-727
BRO, 2019-06-28
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
E-727 Digital Multi-Channel Piezo Controller

Table of Contents

Questions and Answers

  • D
    Donald WellsAug 1, 2025
    How to fix PI Controller communication issues?
    • J
      James McleanAug 1, 2025
      If you're having trouble communicating with the PI Controller, here are a few things to check: * Ensure you are using the correct communication cable and test it on another system if possible. * Allow the E-727 to fully power on (about 20 seconds, Power LED continuously lit) before establishing communication. * Verify the interface configuration (port, baud rate for RS-232; IP address, IP mask, network settings for TCP/IP; ensure no network restrictions). * Close any other programs that might be accessing the interface. * Test with other software using the '*IDN?' or 'HLP?' command, ending with an LF (line feed). * For E-727 models with EtherCAT, ensure TCP/IP and USB interfaces are enabled after leaving the OPERATIONAL EtherCAT state.
  • J
    Jason CampbellAug 13, 2025
    How to stop unintentional motion of PI Controller stage?
    • R
      Ronald CarlsonAug 13, 2025
      To prevent a PI Controller stage from moving unintentionally: * Check the Power Up AutoZero Enable parameter (ID 0x07000802) and adjust it if necessary. * See if a macro is specified as the start-up macro and cancel the selection of the start-up macro if necessary.
  • J
    jamesdiazAug 18, 2025
    How to reduce electromagnetic noise in PI Controller sensor signal?
    • O
      Oscar RomeroAug 18, 2025
      Check the sensor signal. If the sensor signal seems to be abnormal: Avoid interfering signals. Take particular care to ensure suitable shielding and grounding.
  • M
    michaeltuckerAug 22, 2025
    What to do if customer software doesn't run with PI drivers?
    • F
      frazierdonnaAug 23, 2025
      Check whether the system works with a terminal program. If so: Read the information in the corresponding software manual and compare the sample code on the product CD with your program code.
  • B
    Bruce RobertsAug 27, 2025
    Why is Device Parameter Configuration window unavailable in PIMikroMove?
    • D
      djonesAug 27, 2025
      Install the NI LabVIEW Run-Time Engine.
  • D
    Deborah HansenNov 4, 2025
    What to do if PI E-727 stage won't move?
    • T
      tracywilliamsNov 4, 2025
      If the stage connected to your PI Controller isn't moving, consider the following: 1. Check all cable connections, paying attention to any specified connection assignments. 2. If the stage was connected while the E-727 was on, try switching the E-727 off and on again or rebooting it. 3. Use the ERR? command to check for error codes, which might indicate a problem. 4. If possible, test with a different stage of the same type to rule out a defective stage or cable. 5. Ensure the high-voltage output isn't deactivated due to overheating (refer to “Overtemp Protection”). 6. Verify the parameter settings of the E-727 using the SPA? and SEP? commands or the Device Parameter Configuration window. 7. Confirm that the motion commands and syntax are correct and match the operating mode. 8. N...
  • M
    Melissa HobbsNov 8, 2025
    Why is my PI E-727 Controller stage oscillating or inaccurate?
    • D
      dtaylorNov 8, 2025
      If your PI Controller stage is oscillating or positioning inaccurately, consider these factors: * A changed load may cause this. If the stage is oscillating (unusual operating noise), immediately switch off the servo mode or switch off the E-727. Only switch on the servo mode after you have modified the settings of the notch filter and the servo-control parameters of the E-727. * Thermal instability of the system can also be a factor. Switch the E-727 on at least one hour before starting work. If the E-727 is not used, but should remain switched on to ensure the temperature stability: Make sure that the servo mode is switched off (open-loop operation) and the piezo output voltage is set to 0 V. To set the piezo output voltage to 0 V, set the axis position to a corresponding value with...

Summary

Safety

General Safety Instructions

Provides essential safety guidelines for the installation and operation of the E-727.

Product Description

Control Value Generation

Describes how control values are generated from various sources for axis motion.

Control Details

Details control parameters like slew rate limitation, control algorithms, and notch filters.

Installation

Installing the PC Software

Details the process of installing necessary PC software for E-727 operation.

Performing the Initial Installation

Guides through the initial setup steps for the E-727 and its software.

Operation

Communication

Details the communication interfaces and methods for controlling the E-727.

AutoZero Procedure

Explains the automatic zero-point adjustment procedure for sensors.

Configuring Trigger Output

Details how to configure trigger options, commands, and parameters for digital outputs.

Using the Analog Input

Guides on how to work with the analog input features of the E-727.

Using the Analog Output

Explains how to utilize the analog output capabilities of the E-727.

Wave Generator

Describes how to work with the wave generator for waveform output.

Dynamic Digital Linearization (DDL)

Explains the Dynamic Digital Linearization feature for improved accuracy.

Controller Macros

Details how to create, manage, and use controller macros for automation.

Adjustment Procedures

ID-Chip Support; Stage Replacement

Covers ID-chip functionality and procedures for stage replacement.

Servo-Controller Dynamic Tuning

Explains how to tune servo-control parameters for optimal performance.

SPI Interface

Configuration Parameters

Details parameters for configuring the SPI interface, including data usage and scaling.

Application Layer

Covers application-level data transfer protocols for SPI communication.

EtherCAT Interface

Configuring the EtherCAT Network

Details the steps for configuring the EtherCAT network and master.

EtherCAT Communication

Explains the EtherCAT communication state machine and details.

Controlling the Axes

Covers necessary adjustments, cycle time, and object dictionary for axis control.

Drive State Machine

Describes the drive state machine for each axis of the E-727.

Control Word

Details the bits and functions of the CiA402 control word.

Status Word

Explains the bits and information contained in the CiA402 status word.

Modes of Operation

Error Handling

Homing Mode

Profile Position Mode

Cyclic Synchronous Position Mode

GCS Commands

Parameters

Parameter Handling

Troubleshooting

Fault: Communication with the controller does not work

Fault: Stage does not move

PI E-727 Specifications

General IconGeneral
InterfaceUSB, RS-232
Operating Voltage24 VDC
Data Acquisition Rate10 kHz
Closed-Loop Resolution0.1 nm
Minimum Incremental Motion0.1 nm
Supported SensorsCapacitive
Control AlgorithmsPID, Notch Filter
Storage Temperature-20 to 70 °C

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