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PI E-621.SR User Manual

Lvpzt controller/amplifier module
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User Manual
PZ115, valid for E-621.SR
Eco, Bro, ibs_CHe, 3/28/2025
E-621.SR
LVPZT Controller/Amplifier Module
© 2025 Physik Instrumente (PI) SE & Co. KG, Karlsruhe, Germany. The text, photographs, and drawings in
this manual are protected by copyright. With regard thereto, Physik Instrumente (PI) SE & Co. KG retains
all the rights. The use of any text, images and drawings is permitted only in part and only when indicating
the source.
Original instructions
First printing: 3/28/2025
Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,
www.pi.ws

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Summary of Contents for PI E-621.SR

  • Page 1 E-621.SR LVPZT Controller/Amplifier Module © 2025 Physik Instrumente (PI) SE & Co. KG, Karlsruhe, Germany. The text, photographs, and drawings in this manual are protected by copyright. With regard thereto, Physik Instrumente (PI) SE & Co. KG retains all the rights. The use of any text, images and drawings is permitted only in part and only when indicating the source.

  • Page 2: Table Of Contents

    Installing the E-621.SR installed in a chassis .................. 25 Installing the E-621.SR not installed in a chassis ................26 Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 2 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 3 11.1 Lifetime of PICMA® actuators ......................46 12 Old equipment disposal Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 3 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws...

  • Page 4: Introduction

    1.1.1 Objective and target group of this user manual This user manual contains the information necessary for using the E-621.SR as intended. We assume that the user has basic knowledge of closed-loop systems, motion control concepts, and applicable safety measures.

  • Page 5: Figures

    Photographic illustrations may also differ and must not be seen as guaranteed properties. 1.1.4 Other applicable documents The devices and software tools from PI mentioned in this documentation are described in separate manuals. Product Document...

  • Page 6: European Declarations Of Conformity

    User Manual PZ115, valid for E-621.SR Eco, Bro, ibs_CHe, 3/28/2025 European declarations of conformity For the E-621.SR, declarations of conformity were issued according to the following European statutory requirements: Low Voltage Directive EMC Directive RoHS Directive The standards applied for certifying conformity are listed below.

  • Page 7: Safety

     Eliminate any malfunctions that may affect safety immediately. The operator is responsible for installing and operating the E-621.SR correctly  Install the E-621.SR system near the AC outlet and such that the AC power plug can be reached easily.
  • Page 8 DANGER Danger of death due to high voltage. E-621.SR LVPZT Controller/Amplifier Modules generate voltages up to 130 V for driving LVPZTs which can cause death or serious injury. When working with these devices or using PZT products from other manufacturers we strongly advise you to follow general accident prevention regulations.

  • Page 9: Organizational Measures

     Add all information from the manufacturer such as supplements or technical notes to the user manual.  If you give E-621.SR to a third party, also include this user manual as well as other relevant information provided by the manufacturer.

  • Page 10: Product Description

    See "32-pin main connector" on p. 44 for details. Figure 1: E-621.SR Front Panel Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 10 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 11 "Lifetime of PICMA® actuators" on p. 46 for details. The control input voltage can also be a computer-generated analog signal (e.g. from a DAQ board). You can use PI’s drivers for NI LabVIEW from a data storage device to generate that analog signal. See "Control modes"...
  • Page 12 *To give the E-816 computer interface submodule complete control over the servo mode selection, DIP switch 3 must be set to open-loop operation (= right). When installing the E-621.SR in a custom chassis, for servo mode selection via the E-816 furthermore make sure that pin 28a on the main connector is not connected to pin 14a or 14c (i.e.

  • Page 13: Modes Of Operation

    "Lifetime of PICMA® actuators" on p. 46 for details. The analog control input can be a computer-generated analog signal (e.g. from a DAQ board). You can use PI’s drivers for NI LabVIEW from a data storage device to generate that analog signal.

  • Page 14: Servo Modes (On / Off)

    SVO command via the E-816 computer interface submodule. By default and when installed in an E-50x.621 chassis from PI, pin 28a is not connected to pin 14a or 14c and hence set to servo off (open-loop operation) Via SVO command sent over the communications interface or received from a macro ...

  • Page 15: Closed-Loop Operation

    E-802 servo controller submodule is bypassed with J1 in position 2-3. Normally, you do not need to change jumper J1. Access to J1 requires removing the E-621.SR module from the chassis. See "Components and adjustment elements" on p. 18 for more information.

  • Page 16: Networking On I C Bus

    It is possible to command up to twelve E-621.SRs over a single RS-232 or USB interface from a single host PC. The E-621.SR connected to the RS-232 or USB link (the master) relays commands to the other units (slaves) on the network. Responses from the slaves are then relayed by the master back to the PC.

  • Page 17: Electronics Details

    If the signal on the SMB socket is to be used as trigger, DC offset must be deactivated or set to 0. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 17 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 18: Components And Adjustment Elements

    See also the E801B1008 and E-802 User Manuals for adjustment elements on those submodules which are not described here. Figure 4: E-621.SR (viewed from component side, with bottom edge on top) component locations; adjustment elements shown in default settings Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 18 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 19: Jumpers

    Factory setting: the servo-control mode depends on the setting of DIP switch 3 on the E-621.SR front panel, on pin 28a of the 32-pin main connector or on the SVO command settings. The slew rate limitation and notch filter are always ON.

  • Page 20: Switches

    Others are located on the main board or on submodules. See also the User Manual of the respective submodule for more details. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 20 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 21: E801B1008 Sensor Processing Submodule

    Should you ever need to make any adjustments on the sensor submodule, refer to the E801B1008 User Manual for more details. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 21 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 22: E-802 Servo Controller Submodule

    34. The E-802 submodule is described in detail in a separate user manual. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 22 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 23: Unpacking

    Data storage device with PC software from PI PZ115 User manual for E-621.SR (this document) Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 23 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 24: Installation

    NOTICE Air Circulation Place the E-621.SR system in a location with adequate ventilation. Insufficient air flow will cause overheating and premature failure.  Do not cover the ventilation slots on the top side of the E-621.SR.

  • Page 25: Installing The E-621.Sr Installed In A Chassis

     Connect the included power cord from the E-500.621 or E-501.621 chassis in which the E-621.SR is installed to a grounded wall socket (220 V to 240 V AC or 100 V to 120 V AC). Figure 8: E-621.SRs installed in compatible PI chassis (E-500.621 in this example) are automatically networked Physik Instrumente (PI) SE &...

  • Page 26: Installing The E-621.Sr Not Installed In A Chassis

    1.5 A to start oscillating. The power supply should have a buffer capacitor or should be able to supply the 1.5 A per E-621.SR for at least 1 second. The inputs and outputs of the DC-DC converter are not connected internally.

  • Page 27: Startup And Operation

    Notes: The servo must be ON in analog mode, when you want to work with a computer- generated signal (e.g. from a DAQ board) and PI’s drivers for NI LabVIEW (see step 5 below). To give the E-816 computer interface submodule complete control over the servo mode selection, DIP switch 3 on the E-621.SR front panel must be set to open-loop operation...

  • Page 28: Sensor Connection And Adjustment

    See "Front panel elements" on p. 10 for signal details. In analog mode, the control input voltage can also be a computer-generated analog signal (e.g. from a DAQ board). You can use PI’s drivers for NI LabVIEW from a data storage device to generate that analog signal.

  • Page 29: Open-Loop Zero-Point Adjustment

    Command voltages from 0 V Apply an analog signal in the 4. Exercise the piezo over Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 29 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 30: Open-Loop Sensor Range Adjustment

    Open-loop sensor range adjustment requires an external measuring device with 0.1 μm resolution and a 32-pin extension connector (P-895.00, not included). Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 30 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 31 PZ115, valid for E-621.SR Eco, Bro, ibs_CHe, 3/28/2025 INFORMATION Procedures which require removing the E-621.SR module from the chassis should be carried out by authorized, qualified personnel only. Disconnect the chassis from power when removing modules, and when resetting internal switches or jumpers.
  • Page 32 10 V. See the User Manual of the E801B1008 Sensor Processing Submodule for component designation and location. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 32 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 33: Servo-Control Static Gain Calibration

    If done in analog mode, you will also need a highly accurate voltage source and meter. INFORMATION Procedures which require removing the E-621.SR module from the chassis should be carried out by authorized, qualified personnel only. Disconnect the chassis from power when removing modules, and when resetting internal switches or jumpers.

  • Page 34: Servo-Control Dynamic Characteristics

    32-pin extension adapter to allow access to the trim potentiometers while the board is in operation. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 34 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 35 PZ115, valid for E-621.SR Eco, Bro, ibs_CHe, 3/28/2025 INFORMATION Procedures which require removing the E-621.SR module from the chassis should be carried out by authorized, qualified personnel only. Disconnect the chassis from power when removing modules, and when resetting internal switches or jumpers.

  • Page 36: Maintenance

    Risk of electric shock An E-621.SR system requires a supply voltage of 100 V to 120 V AC or 220 V to 240 V AC (line voltage). Touching the line voltage can result in serious or even lethal injury due to electric shock.

  • Page 37: Troubleshooting

    (axis identifier also required with single-axis systems.) Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 37 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 38 See "Servo- behaviour. control dynamic characteristics" on p. 34for details. Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 38 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...
  • Page 39 Another program is using the  Close the other program. interface Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 39 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws...
  • Page 40 Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 40 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 41: Technical Data

    5 °C to 50 °C (above 40 °C, power derated) Overheat protection Deactivation at 75 °C Dimensions 7 HP/3 RU Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 41 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws...

  • Page 42: E-621.Sr Chassis

    Degree of pollution Degree of protection IP20 according to IEC 60529 Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 42 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws...

  • Page 43: Frequency Response Diagram

    Eco, Bro, ibs_CHe, 3/28/2025 10.3 Frequency response diagram Figure 11: E-621.SR open-loop frequency response with various piezo loads. Values shown are capacitance in μF Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 43 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 44: Pin Assignment

    400 pF. ***Pins 14a and 14c should be connected to a protective ground Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 44 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 45: Strain Gauge Sensor Wiring

    Strain gauge sensor wiring Figure 12: Pin configurations and wiring for various different positioners Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 45 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 46: Appendix

    This must always be taken into consideration in an application. The recommended maximum range of the control input voltage for the E-621.SR amplifier module therefore is -2 V to 12 V, resulting in a piezo voltage range of -20 V to 120 V. A control input range of -3 V to 13 V is possible (results in -30 V to 130 V piezo voltage), but will reduce the actuator lifetime accordingly.
  • Page 47 =100) result in an approximate MTTF of 105,000 h, i. e. more than 11 years (see markings on the diagrams). Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 47 / 48 Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws,...

  • Page 48: Old Equipment Disposal

    Dispose of your old equipment according to international, national, and local rules and regulations. In order to fulfil its responsibility as the product manufacturer, Physik Instrumente (PI) SE & Co. KG undertakes environmentally correct disposal of all old PI equipment made available on the market after 13 August 2005 without charge.

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