VACGEN OMNIAX Series Operating And Maintenance Handbook

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Operating and Maintenance Handbook

OMNIAX TRANSLATOR SERIES

subject to change without notice and does not represent a commitment on the part of VACGEN. No

part of this document may be copied or distributed, transmitted, transcribed, stored in a retrieval

system or translated into any human or computer language, in any form or by any means, electronic,

mechanical, magnetic, optical, manual or otherwise or disclosed to third parties without the express

written permission of VACGEN, Maunsell Road, Castleham Industrial Estate, St, Leonards on Sea,

East Sussex, TN38 9NN, UK

Page 1 of 35

sales@vacgen.com

www.vacgen.com

+44 (0) 1424 856 333

Table of Contents

Summary of Contents for VACGEN OMNIAX Series

Page 1 Copyright Notice 2015 by VACGEN. All rights reserved. Information contained in this handbook is subject to change without notice and does not represent a commitment on the part of VACGEN. No part of this document may be copied or distributed, transmitted, transcribed, stored in a retrieval...
Page 2: Warranty
2. The Purchaser cannot return any product for warranty repair without the prior approval of VACGEN and the issue of a Goods Return Number (GRN). This shall be obtained by contacting the service center at VACGEN.
Page 3: Health And Safety Information
Consider possible reactions with materials of construction. Any equipment returned to VACGEN must have the correct Declaration of Contamination securely fastened to the outside of the packaging.
Page 4: Specifications
NW63CF (114mm (4.5") OD) Environment: This equipment is intended for use in clean, dry environments. For use in other conditions, please contact VACGEN Technical Sales. Materials of Construction: All units are manufactured mainly from austenitic stainless steel or aluminum alloy. Stainless steel is used for parts that form the vacuum envelope.
Page 5: Basic Dimensions
1.4 BASIC DIMENSIONS Figure 1 - Basic dimensions and layout of Omniax Page 5 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 6 184 to 284 configuration details. 186 to 386 186 to 586 (2) Motor specifications assume the 229 to 829 use of a VACGEN motor 273 to l073 1164 drive-controller. 1000 317 to 1317 1408 (3) Repeatability assumes the drive...
Page 7: Installation
All parts should be secure and there should be no 'play' in any of the movements. All screws should be securely fastened but not excessively tight. c. Any damage in transit should be, reported to the carrier and to VACGEN at Hastings, or your local agent, within three days. Retain the packaging.
Page 8 Warning: It is the responsibility of the user to fit emergency stops to automated equipment. (Note: VACGEN stepper motor controllers have a facility for adding emergency stops.) 2.4 XY MOTOR INSTALLATION a. Motor wiring details are given in Appendix B.
Page 9 Note: Changing the side to which the motor is fitted is possible, but will cause the direction of motion to reverse. It is therefore necessary to reverse the microswitches. Page 9 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 10 Re-tighten the two screws and check, by slowly running the knee onto the switch, that contact is being made consistently. Page 10 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 11 Always check the datum position and reset as necessary. 3.1.2 Operation • The unit must be correctly installed, and the information above followed carefully. • Manual operation is straightforward and needs no special consideration. Page 11 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 12 Remove the cover extrusion that encloses the microswitches by unscrewing the two screws securing it to the side of the Z-slide. Remove all cabling from the bakeout zone. Page 12 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 13: Routine Maintenance
Visually inspect the springs to cheek that no spring leaves have broken. Any broken springs must be replaced as soon as possible. Contact VACGEN Service Department for information. b. Check that the springs correctly support the payload by operating the vertical (Y) micrometer (or manually operate the Y motor).
Page 14 Note that it is not possible to lubricate the full length of the slide, but by cycling the movement a few times, the lubricant will be adequately dispersed. Page 14 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 15: Corrective Maintenance
(see diagram below). Unscrew this nut by about two turns relative to the spacer which has a radial hole. This will introduce end play to the shaft Page 15 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 16 Details will vary depending on the configuration. The following text assumes a VACGEN rotary drive is used. c. Check the condition of the rotary drive shaft that protrudes from the bearing housing. Carefully clean off any burrs or high spots that...
Page 17 Tool kit TOOLK, including; Metric spanners, hexagon keys, circlip pliers and gloves Electrical and VACGENcouple instrumentation: EFT series feedthroughs: Contact VACGEN for available feedthroughs and for information on instrumentation options. Rotary Drives: RD series (RD I, RD2 and RD224) precision rotary drives. These are compatible with the Omniax.
Page 18 VACGEN for assistance 4.2.8 Factory Servicing A factory servicing scheme exists for all translators. The translator should be returned to the VACGEN factory with a covering order. Please note also the terms and conditions for returning goods, outlined in the 'Repair' section in the front of this manual that apply to good returned for servicing.
Page 19: Appendix A. Horizontal Mounting
Warning: These springs are very powerful and have sharp edges. GREAT CARE should be taken to avoid physical injury if any attempt is made to disconnect the springs. First remove the translator from Page 19 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 20 These values relate to OMNIAX translators that include XY stage, rotary drive, feedthrough chamber with feedthroughs and normal specimen holders. The Z slide is taken as motorised but the XY stage is manual. For other configurations, such as the CTPO or cryostats, please consult VACGEN. Z Travel...
Page 21 These values relate to OMNIAX translators that include XY stage, rotary drive, feedthrough chamber with feedthroughs and normal specimen holders. The Z slide is taken as motorised but the XY stage is manual. For other configurations please consult VACGEN. a) Traveling unit:...
Page 22 XY stage is centralized. If any stiffness is noticed or if there is more resistance in one direction than the other, then advice should be sought from VACGEN. * With the XY stage centralized, check that both lever arms are horizontal. Adjustments may be made to the push rods via the end fittings.
Page 23 * The base of the end compensator and the track must be bolted firmly in position. t could dislodge Caution. Protect the OMMAX and its compensation units from accidental knocks tha the push rods and over-stress the system flange. Page 23 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 24 Bolt the base plate into position and remove the jacks. e. Protect the OMNIAX and its compensation unit from accidental knocks that could dislodge the push rod and over-stress the system flange. Page 24 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 25: Appendix B. Stepper Motor Connections
(SDU, SMC or SMC-E) and no responsibility can be accepted should performance be inadequate when other controllers are used. For attachment to VACGEN controllers, the motors (and encoders if applicable) can be supplied wired with suitable connectors. Otherwise, motors are supplied without connectors to allow connection to alternative drive and controller systems.
Page 26 4.6A 2.50mH Notes: (1) Step angle quoted for full step drive. VACGEN controllers use half step drives with step angle being 0.9 (2) Limit the maximum current to the following values, determined by the drive used. (Note that running at maximum current can cause motor to run hot and can give rise to resonance.)
Page 27 For the same reason, never disconnect a motor from its drive unless the power has first been switched off. Refer to previous section for colour coding of wires. Wiring diagrams for motors suitable for VACGEN Controllers Page 27 of 35 sales@vacgen.com www.vacgen.com...
Page 28 Cable: Motor to SMC, SME-E or SDU controller. DB08073 Cable: Encoder to SMC-E controller. XSOC24 Connector socket. Fitted to motor lad or connection to VACGEN controllers. XPLU11 Connector plug. Fitted to controllers for connection to XSOC24 motor socket. Page 28 of 35 sales@vacgen.com...
Page 29: Appendix C. Heater And Vacgencouples
* Resistance heating (HST option), or * Electron bombardment heating (FBH option). These heaters are intended for mounting onto the standard range of VACGEN sample holders (e.g. SH1, SH1E50, SH2, SH2E50, SH2R64, SH2F, SH2RT, SM2T and SM2VT.) Two VACGENcouples are provided with either heater module. These are available as either Type K (Chromel-Alumel) or Type N (Nicrosil-Nisil).
Page 30: Appendix D. Liquid Nitrogen Cooling
APPENDIX D. LIQUID NITROGEN COOLING WARNING: VACGEN cannot advise on the safe use and handling of liquid gases which is entirely the responsibility of the user. The use of liquid nitrogen in confined spaces can be extremely dangerous as nitrogen gas levels can build up rapidly. Ensure that the area is well ventilated. Always wear insulated gloves and safety goggles when handling liquid gases and surfaces that may be cold.
Page 31 A supply of liquid nitrogen. A condenser coil, insulated open polystyrene dewar and connecting polythene tubes with insulation (These items are available from VACGEN as an accessory, order code ZLNHX). D2. DESCRIPTION Liquid nitrogen condensed from dry gas, enters and leaves the translator through liquid feedthrough connections.
Page 32 The temperature will continue to fall and stabilise after approximately 1 hour. D6. BAKEOUT Disconnect all plastic tubes from the liquid nitrogen feedthrough connections before commencing bakeout. Page 32 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...
Page 33 VACGEN Maunsell Rd Castleham Industrial Estate East Sussex TN38 9NN England Tel: +44 (0) 3424 851291 Fax: +44 (0) 1424 851489 E.C. Declaration of Incorporation ref DoI-147 (VGF 4.06d Iss2) We hereby declare that the following product range: Part Codes:...
Page 34 Serving and repairs will only be carried out if the conditions for Servicing and Repair are complied with in full, according to the VACGEN Ltd. Conditions of Sale. A summary of these requirements are included on the inside front cover of the Operating Instructions.
Page 35 REVISION DATE COMMENTS INITIALS Jan 1994 Original release Sept 1997 ECN2765 Aug 2015 VACGEN rebrand Page 35 of 35 sales@vacgen.com www.vacgen.com +44 (0) 1424 856 333...

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Omniax translator series