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Telemark TT CHEETAH Series Instruction Manual

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TT CHEETAH SERIES
ELECTRON BEAM POWER SUPPLY
INSTRUCTION MANUAL
Copyright © TELEMARK, 2018 – All rights reserved
March 2018
telemark.com
Brand and product names are trademarks or
registered trademarks of their respective companies.
Current version of this manual can be found at
https://telemark.com/e-beam-power-supplies/tetrode-tube/
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  • Page 1 TT CHEETAH SERIES ELECTRON BEAM POWER SUPPLY INSTRUCTION MANUAL Copyright © TELEMARK, 2018 – All rights reserved March 2018 telemark.com Brand and product names are trademarks or registered trademarks of their respective companies. Current version of this manual can be found at...
  • Page 2 Components which are purchased by Telemark from other manufacturers will be guaranteed for any lesser time that such manufacturer warrants its products to Telemark. This warranty is valid only for normal use where regular maintenance is performed as instructed. This...
  • Page 3 DO NOT allow anyone who has not reviewed the manual to perform any part of the installation process or to attempt servicing of the power supply. Any questions must be brought to the attention of Telemark's service personnel. DO NOT obstruct the cooling inlets or outlets. Overheating can result, which...

  • Page 4: Table Of Contents

    Telemark TT Cheetah Series Power Supply Instruction Manual TABLE OF CONTENTS UNPACKING GENERAL DESCRIPTION SPECIFICATIONS INSTALLATION Introduction Mechanical System Grounding Practice............. 11 Grounding Ground Connections Interlock Connections Power Tube Installation ..............13 Input Voltage Selection ..............15 HVPS Rear Panel Connectors ............15...
  • Page 5 Telemark TT Cheetah Series Power Supply Instruction Manual LIST OF ILLUSTRATIONS Figure Title Page HVPS Front Panel (TT-8) ............12 HVPS Front Panel (TT-10) ............13 Suggested Ground Installation ........... 15 Power Tetrode in TT-6 ............... 16 TT-10/15/20 Tube sitting on Socket ........... 17 Tube fully inserted in Socket ............

  • Page 6: Unpacking

    Telemark TT Cheetah Series Power Supply Instruction Manual UNPACKING Remove the High Voltage Power Supply (HVPS) and Controller from their crate/carton(s), but do not discard the packing materials; retain the packing materials and carton in case the unit needs to be returned.

  • Page 7: General Description

    Telemark TT Cheetah Series Power Supply Instruction Manual GENERAL DESCRIPTION The TT series of Electron Beam Source Power Supplies are compatible with electron beam sources which use electro-magnetic deflection or a combination of permanent magnet deflection and electro-magnetic focusing. This High Voltage Power Supply (HVPS) incorporates the latest in fast response Tetrode Tube high voltage regulation and switching technology.

  • Page 8: Specifications

    Telemark TT Cheetah Series Power Supply Instruction Manual SPECIFICATIONS TT-3 CE TT-6 CE TT-6 CE TT-8 CE TT-8 CE Parameter 208 VAC 400 VAC 208 VAC 400 VAC Line Voltage * 208/230VAC 208VAC 400VAC 208VAC 400VAC Line Frequency 50/60Hz 60Hz...
  • Page 9 Telemark TT Cheetah Series Power Supply Instruction Manual The TT-8/10/15/20 are equipped with a "soft start" feature to eliminate excessive initial surge currents from their large HV transformers. It is considered good practice to select slow blow circuit breakers (fuses) with at least one...

  • Page 10: Installation

    Telemark TT Cheetah Series Power Supply Instruction Manual INSTALLATION Introduction The TT-3/6/8 Electron Beam Source Power Supply is designed to be mounted in a standard 19 inch electronic instrument rack. Any suitable place on a vacuum system with a standard 19 inch opening may be used.

  • Page 11: Mechanical

    Telemark TT Cheetah Series Power Supply Instruction Manual Figure 4-B HVPS Front Panel (TT-10 shown, with Controller and Sweep) Mechanical The High Voltage module (HVPS) of the TT-3/6/8 must be placed in a level 19 inch rack or other suitable cabinet that is capable of supporting a minimum of the following weights.

  • Page 12: Ground Connections

    Telemark TT Cheetah Series Power Supply Instruction Manual Connecting to Building Steel The best method known for grounding the E-beam is to tie the ground bar to building steel as close as possible using the appropriate grounding strap (varies based on the distance - see details below).

  • Page 13: Interlock Connections

    Telemark TT Cheetah Series Power Supply Instruction Manual Sweep Power Supply Filament Transformer Power Supply Controller Figure 4-C Suggested Ground Installation Interlock Connections It is extremely important for operator and equipment safety that the external interlocks are appropriately installed (see page 20 and section 7, Figures 8-A through 8-E).
  • Page 14 Telemark TT Cheetah Series Power Supply Instruction Manual These power supplies do have the tube already properly installed. Figure 4-D Power Tetrode installed in TT-6 The TT-8/10/15/20 are equipped with a directly heated power beam tetrode that requires separate shipping in a dedicated container to avoid damage.

  • Page 15: Input Voltage Selection

    Telemark TT Cheetah Series Power Supply Instruction Manual Figure Tube fully inserted into Socket, left TT-10/15/20, right TT-8 (~ ¼" or 6mm gap) Proper seating of the tube in its socket is essential for good current transfer for the heater filament (75A for TT-8, 160A for TT-10/15/20 !!!), preventing the socket contact rings from overheating and eventually burning out.

  • Page 16: Interconnection Procedure

    Telemark TT Cheetah Series Power Supply Instruction Manual Figure 4-H HVPS Rear Panel Connectors (TT-6 shown) Interconnection Procedure Figure 4-I Controller Rear Panel Connectors 1. Turn OFF all front panel circuit breakers. 2. Connect the ground stud on the rear panel of the HVPS chassis to a common ground on the vacuum system.

  • Page 17: Connector And Pin Definitions

    Telemark TT Cheetah Series Power Supply Instruction Manual 4mm² for 208VAC, min. #14AWG / 2.5mm² for 400VAC). Strip about 0.4 inch (~10mm) of insulation from the wires before crimping them to the terminals. Connect the completed connector assembly to J6 POWER IN on the HVPS.

  • Page 18: Controller

    Telemark TT Cheetah Series Power Supply Instruction Manual Pin# Name Description Phase 1 AC Phase 1 GND / PE AC GND / PE Neutral AC Neutral, on 400VAC units only Phase 2 AC Phase 2 Phase 3 AC Phase 3...
  • Page 19 Telemark TT Cheetah Series Power Supply Instruction Manual HV ON Indicator Output 0 to +Vcc Low = HV is on (O.C.)* High = HV is off Source ON Indicator Output 0 to +Vcc Low = Source is on (O.C.)* High = Source is off...
  • Page 20 Telemark TT Cheetah Series Power Supply Instruction Manual Unused Unused Unused Unused 24 All Interlocks OK Output 0 to +Vcc Low = All Interlocks satisfied Indicator (O.C.)* High = Not all Interlocks satisfied Unused 26 Source Ready/OFF Output 0 to +Vcc...
  • Page 21 Telemark TT Cheetah Series Power Supply Instruction Manual Note 2: If using “User +24VDC” as control supply for pins 2-6, 9 and 10, then GND and GND_ISO must be shorted externally (e.g. pins 17 and 18 or 35 and 36) J6 –...
  • Page 22 Telemark TT Cheetah Series Power Supply Instruction Manual Return pin used). Failure to do so will compromise correct functioning of the interlocks (always satisfied). Example: One safety switch to be used for VAC and HVAC interlocks: Connect one side of...

  • Page 23: Operation

    Telemark TT Cheetah Series Power Supply Instruction Manual OPERATION Controller Functions Figure 5-A Controller Front Panel Switch Functions Section Name Type Function Turns “auxiliary power” on/off to HVPS CONTROL CONTROL 2 Position POWER POWER and Controller circuitry HIGH Pushbutton Press to turn HV off...
  • Page 24 Telemark TT Cheetah Series Power Supply Instruction Manual Potentiometer Functions Section Name Type Function HIGH VOLTAGE 10-turn Sets HV output level in Local (and in VOLTAGE Remote, if selected with jumper at J5) SOURCE EMISSION 10-turn Sets emission output current in Local 10-turn trim Sets ‘pre-heat’...

  • Page 25: Operation

    Source meter will read a bias (preheat) filament current of around 18A. A good range for setting the bias for Telemark sources is some 17 to 20A, settings for other sources need to be determined by trial (yellow glow of the filament, but still a few amps below emission point, see next step below) but should be very similar.
  • Page 26 Telemark TT Cheetah Series Power Supply Instruction Manual The power supply is now ready for use. Standard Operation When operating the power supply it is considered good practice to first turn on the source filament (Source ON) and allow it to heat up to preheat level (Bias) for at least 10 to 15 seconds and only then turn on high voltage (HV ON).
  • Page 27 Telemark TT Cheetah Series Power Supply Instruction Manual • Cut-Back: This is the current limit where "cut-back" kicks in. This limit protects the power supply from damage from excessive output currents like from short circuits or from arcing in the vacuum chamber by turning off HV via the power tube. It also handles arcing of the electron beam source by quickly turning off the HV output for an extremely short instance to extinguish arcs.

  • Page 28: Preventive Maintenance

    Telemark TT Cheetah Series Power Supply Instruction Manual PREVENTIVE MAINTENANCE Preventive maintenance is to be done with main power turned off and locked out/tagged out, following your company’s safety program. • Check and confirm power supply earth ground is clean and secure at power supply ground terminal and at the facility earth ground point.

  • Page 29: Multi-Source Operation

    MULTI-SOURCE OPERATION (optional for TT-10/15/20) Introduction The TT-10/15/20 allow for operation of up to 3 electron beam sources simultaneously (optional). Each source output has its own Source Module plugged in at the rear of the HVPS cabinet. The Source Module supplies HV to an electron beam source, drives the filament transformer and measures and controls emission current for this particular source.
  • Page 30 Telemark TT Cheetah Series Power Supply Instruction Manual 12 F.P. ON in Remote Input Jumper only, Open = ON signals from PLC do not apply GND = F.P. ON switches are voltage active in remote mode 13 Digital GND (GND)
  • Page 31 Telemark TT Cheetah Series Power Supply Instruction Manual J6 – HANDHELD (26pin HD Sub-D M) For Handheld Remote Controller (Pendant, optionally available) J7 – INTERLOCKS – External Safety Interlocks (15pin Sub-D M) Name Input/ Signal Range Function Description Output/ Power...

  • Page 32: Addendum

    Telemark TT Cheetah Series Power Supply Instruction Manual ADDENDUM • Figure 8-A Connections TT-3 • Connections TT-6/8 – 208VAC Figure 8-B • Connections TT-6/8 – 400VAC Figure 8-C • Connections TT-10/15 – 208VAC Figure 8-D • Connections TT-10/15/20 – 400VAC Figure 8-E •...
  • Page 33 Telemark TT Cheetah Series Power Supply Instruction Manual Figure 8-A Connections TT-3...
  • Page 34 Telemark TT Cheetah Series Power Supply Instruction Manual Connections TT-6/8 – 208VAC Version Figure 8-B...
  • Page 35 Telemark TT Cheetah Series Power Supply Instruction Manual Connections TT-6/8 – 400VAC Version Figure 8-C...
  • Page 36 Telemark TT Cheetah Series Power Supply Instruction Manual Connections TT-10/15 – 208VAC Version Figure 8-D...
  • Page 37 Telemark TT Cheetah Series Power Supply Instruction Manual Connections TT-10/15/20 – 400VAC Version Figure 8-E...
  • Page 38 Telemark TT Cheetah Series Power Supply Instruction Manual Figure 8-F J5 Remote User I/O Connector...
  • Page 39 Telemark TT Cheetah Series Power Supply Instruction Manual ECLARATION OF ONFORMITY Telemark 1801 Commerce Ave Battle Ground, WA 98604, USA Declares that the products Product Name: TT Series High Voltage Power Supply Model Number(s) Cheetah TT-3/6/8/10/15 and Cheetah TT-6/8/10/15/20E Incl. Analog X-Y Beam Sweep Module or Digital...

This manual is also suitable for:

Cheetah tt-6 ce 400 vacCheetah tt-3 ceCheetah tt-8 ce 208 vacCheetah tt-8 ce 400 vacCheetah tt-10 ce 208 vacCheetah tt-6 ce 208 vac ... Show all

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