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Aetechron 8300 Series Operator's Manual

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8300 Series
Operator's Manual
Wide-Bandwidth, High-Power Digital Amplifiers
Models 8304, 8306, 8308 and 8310
574.295.9495 |
www.aetechron.com
2507 Warren Street, Elkhart, IN 46516

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  • Page 1 8300 Series Operator’s Manual Wide-Bandwidth, High-Power Digital Amplifiers Models 8304, 8306, 8308 and 8310 574.295.9495 | www.aetechron.com 2507 Warren Street, Elkhart, IN 46516...
  • Page 3 2507 Warren St. Elkhart, IN, 46516, U.S.A. receive an authorization to return the product for (574) 295-9495 service. All components must be shipped in a factory www.aetechron.c pack or equivalent which, if needed, may be obtained...

  • Page 4: Table Of Contents

    1.1 Features ..........................5 1.2  Configuration Options......................5 2  Amplifier Unpacking and Installation ....................6 2.1 Safety First ..........................6 2.2  Unpacking ..........................6 2.3 Check Contents ........................6 2.4 8300 Series Placement ......................6 2.5  Installing the Pagoda Top ......................7 3  Connections and Startup .......................9 3.1  Testing Before Controlled-Current Operation  ...............9 3.2  Connecting the Load ......................9 3.3  Connecting the Input Signal ....................10 3.4 Other DIP Switch Settings ....................10...

  • Page 5: Introduction

    8300 SERIES OPERATOR’S MANUAL – SECTION 1 Figure 1.1 – 8300 Series Front Panel 1 Introduction Congratulations on your purchase of an 8300 se- kVA output while drawing less than 10 kW of AC  ries digital power amplifier. 8300 series amplifiers  mains power! are 200Vp, low-noise, DC-to-50 kHz switch-mode  1.2 Configuration Options amplifiers. They are fast enough for DC automo- tive dropout testing and capable of AC voltages  A key to everyday product usability is quick and  required for ISO 61000 and Aviation testing. Plus,  easy product (re)configuration. The 8300 series  they have low enough noise and distortion specifi- amplifier provides all key configuration controls on  cations to be the reference power source in power  the back panel of the unit. Configuration options  quality measurements. available include: • Gain: Fixed or variable gain (0 to 40) 1.1 Features • Current Limit: From 5% to rated limit (to  Wide Bandwidth and Flexible protect fragile DUTs or where specified in the  The 8300 series amplifier is capable of reproduc- Standard) ing AC, DC and AC+DC waveforms into loads from  • DC Control: DC enabled or DC blocked and ...

  • Page 6: Amplifier Unpacking And Installation

    Once again, note In addition to the 8300 series amplifier, your ship- the explanation of the hazard and the ment should include the following: instructions for avoiding it. 1. Pagoda top 2.2 Unpacking 2. Quick Start Guide 3. 8300 series Operation Manual on USB drive Your amplifier will be delivered to the ship-to ad- dress enclosed in a wooden crate and transported  2.4 8300 Series Placement on a special, shock-absorbing pallet. With the  8300 series amplifiers are mounted on wheels to  addition of packaging, the amplifier can weigh up  allow rolling on a flat, smooth surface. To avoid  to 700 pounds (318 kg). To avoid serious injury  possible tipping, always push the amplifier from  and/or product damage, use a heavy-duty lift or  the front and avoid rough or pitted surfaces.  other suitable equipment to unpack and move the  product to its place of installation.

  • Page 7: Installing The Pagoda Top

    8300 SERIES OPERATOR’S MANUAL – SECTION 2 back of the amplifier to allow adequate airflow and  ware for later use. Note that the lifting bracket  hot air discharge through the amplifier rear. See  will remain installed in the chassis. See Figure Figure 2.2 for clearance recommendations. 2.3. Figure 2.3 – Removing the Lift Rings 3. Locate the four screws securing the screen  top. Remove the screws and then lift the  screen top off from the frame. The screen top  can be reserved or discarded. See Figure 2.4. Figure 2.2 – Clearance Recommendations  for Amplifier Placement 2.5 Installing the Pagoda Top A pagoda top has been shipped separately from  Figure 2.4 – Removing the Top Screen the product. To install the pagoda top on the prod- 4. Remove the screws, washers and nuts from  uct, the cable lift rings must be removed. Ensure  that the product is un-crated and located near its  the pagoda top, marking or otherwise noting  final installation site before installing the pagoda ...
  • Page 8 8300 SERIES OPERATOR’S MANUAL – SECTION 2 5. Locate the four mounting holes located just  7. Place one washer on each screw and, work- inside the lift-kit cross bars at the top of the  ing from the interior of the chassis, slide the  product. See Figure 2.6. screw through the product mounting hole and  6. Set the pagoda top onto the product top, mak- into the pagoda top. Secure using the supplied  ing sure the flanges of the top rest in the inset  nut. Repeat for the other three corners of the  on the product top.  pagoda top. Figure 2.6 – Pagoda Top Mounting Hole Locations Information subject to change 96-8006125_11-03-21...

  • Page 9: Connections And Startup

    8300 SERIES OPERATOR’S MANUAL – SECTION 3 Figure 3.1 – 8300 series I/O Panel (back panel) 3 Connections and Startup WARNING This section details the wiring and startup pro- ELECTRIC SHOCK HAZARD. cedures for an 8300 series amplifier operating in  Output potentials can be lethal. Make Controlled-Voltage mode (factory default). Before  connections only with AC Power OFF and input signals removed. connecting the amplifier inputs and outputs, make  sure the AC power is disconnected.  3.2 Connecting the Load 3.1 Testing Before Controlled-Current 3.2.1 Preparation and Cautions Operation Before connecting the amplifier, make sure the IMPORTANT: If your application requires Con-...

  • Page 10: Connecting The Input Signal

    8300 SERIES OPERATOR’S MANUAL – SECTION 3 enabled. When the DIP switches are placed in the  DOWN position, the input connectors are disabled.  See Figure 3.4 for DIP switch locations. Figure 3.2 – Connecting the Load 3.3 Connecting the Input Signal Figure 3.4 – DIP Switch Locations for  Both an unbalanced Input BNC jack and a bal- Input Connector Enable/Disable anced Input “WECO” terminal block connector  (mating WECO connector provided) are available  3.4 Other DIP Switch Settings on the amplifier back I/O panel for signal input.  Other DIP switches located on the amplifier mod- Connect your input signal source to the unbal- ule labeled “Master” can be used to enable fea- anced or balanced input connector as shown in  tures or configure the amplifier for special applica- Figure 3.3. Use cables that are high quality and  tions. See the Advanced Configuration section of shielded to minimize noise and to guard against ...
  • Page 11 8300 SERIES OPERATOR’S MANUAL – SECTION 3 Full AC requirements by product model are de- DANGER tailed below: The risk of lethal ELECTRICAL SHOCK MODEL 208V (±10%) 400V (±10%) exists when connecting AC mains! Disconnect the source before connect- 8304 30A, 50/60 Hz 15A, 50/60 Hz ing AC power wires to the amplifier’s AC 8306 30A, 50/60 Hz 15A, 50/60 Hz inputs. 8308 60A, 50/60 Hz 30A, 50/60 Hz...

  • Page 12: Start-Up Procedure

    8300 SERIES OPERATOR’S MANUAL – SECTION 3 Figure 3.6 – Three-Phase AC Mains Wiring 3.7 Start-up Procedure 1. Turn down the level of your signal source. 4. Press the front-panel POWER switch to  2. Make sure the Emergency Stop button on  turn the amplifier ON.  the front panel is in the ON position (not  5. Wait until the Run/Standby indicator turns  depressed). solid green. 3. Make sure the back panel access door is  6. Adjust your input signal level to achieve  closed and the breaker switch (near the  the desired output level. bottom of the amplifier rear) is in the ON  position. Information subject to change 96-8006125_11-03-21...

  • Page 13: Amplifier Operation

    8300 SERIES OPERATOR’S MANUAL – SECTION 4 4 Amplifier Operation 1. High/Low Line error  2. Overtemp condition 4.1 Front-Panel Controls and Indicators 3. Fault condition This section provides an overview of Front-Panel  4. The user presses the front-panel power switch  controls and indicators found on the 8300 series to the OFF (O) position. amplifier. Refer fo Figure 4.1 for component loca- In Standby mode, the amplifier’s low-voltage trans- tions. former is energized but the high-voltage transform- 4.1.1 Power Switch ers are not.
  • Page 14 8300 SERIES OPERATOR’S MANUAL – SECTION 4 cases where the amplifier’s transformers have  If the High/Low Line indicator does not turn off or  overheated, up to15 minutes of cooling time  if the amplifier does not return from Standby, the  may be required before the amplifier can re- amplifier may require servicing. See the Trouble- sume operation. See the Overtemp Indicator shooting section for more information. topic in this section for more information. 4.1.5 Overtemp Indicator 3. Fault condition: Press the front-panel power  The amplifier monitors the temperature inside the  switch to reset the amplifier. If the fault condi- high-voltage transformers and in the output stage  tion recurrs or does not clear, the amplifier may  heat sinks. The amber Overtemp indicator will light  require servicing. See the Troubleshooting and the amplifier will be placed in Standby mode  section for more information. when the temperature sensors detect a condition  4. Power switch pressed: When the amplifier is  that would damage the amplifier. If the Overtemp  operating (Run mode), pressing the front-panel  pulse is extremely short, as in the case of defec- power switch will place the amplifier in Standby ...

  • Page 15: Back-Panel Controls & Connectors

    8300 SERIES OPERATOR’S MANUAL – SECTION 4 Figure 4.2 – Back Panel Controls and Connectors Back-Panel Controls & Connectors Output Terminals – Connect output lines from the  load to this pair of high-current output terminals  This section provides an overview of Back-Panel  using 3/8-inch ring terminals.  controls and connectors found on the 8300 series amplifier. Please refer to Figure 4.2 for component  Back-Panel Safety Features locations. This section provides an overview of Back-Panel  Unbalanced BNC Input Connector – This input  safety features found on the 8300 series amplifier.  option provides a standard unbalanced input. Please refer to Figure 4.3 for component loca- tions.

  • Page 16: Advanced Configuration

    Select an alternate compensation network for  for DIP switch settings and descriptions.  Controlled Current operation designed for loads  from 1 mH to 5 mH. To locate the Master amplifier module, disconnect  • Install a custom compensation network for  the amplifier from the AC source, and then open  Controlled Current operation. 8300 Series Default DIP Switch Settings, Master Amplifier Module Red = Default DO NOT CHANGE DIP SWITCH SETTINGS DOWN 1 UNBALANCED INPUT 2 BALANCED INPUT 3 DC SERVO 4 OPERATION MODE...
  • Page 17 8300 SERIES OPERATOR’S MANUAL – SECTION 5 unused input connector can help to minimize noise  WARNING going into the amplifier. SW#2: Balanced Input ELECTRIC SHOCK HAZARD. When this switch is in the UP position, the bal- Follow these safety precautions before anced WECO input connector is enabled and  opening the amplifier’s back access door: can be used to send an input signal to the ampli- • Disconnect the AC power supply. fier. When this switch is in the DOWN position  • Wait at least 3-5 minutes after (default), this connector is disabled. Note that  disconnecting AC power before opening the access door.
  • Page 18 SW#7: Control Configuration 2 network. For information on installing a custom  IMPORTANT: Do not change the Control Con- figuration switch on any 8300 series amplifier compensation network, see Section 5.2 “Internal Master or Follower module unless instructed Configuration.” For more information on Con- by AE Techron Technical Support. Product trolled-Current operation, including instructions for ...
  • Page 19 0.125Ω 0.00Ω SW#17: Electronic Gain Matching IMPORTANT: Do not change the Electronic Figure 5.3 – Synthetic Impedance Switch  Gain Matching switch on any 8300 series Configurations amplifier Master or Follower module unless SW#21 - #24: Current Limit instructed by AE Techron Technical Support. These four switches control the current-limit set- Product failure could occur.

  • Page 20: Applications

    8300 SERIES OPERATOR’S MANUAL – SECTION 6 6 Applications 6.1 Controlled-Current Operation 6.1.1 Controlled-Voltage vs. Controlled- Current Modes of Operation AE Techron 8300 series amplifiers can be field- configured to operate as Voltage Amplifiers (Voltage-Controlled Voltage Source) or as Trans- conductance Amplifiers (Voltage-Controlled  Figure 6.1 – Input to Output Comparison,  Current Source). The mode selection is made via  Controlled-Voltage Operation the back-panel DIP switch #4. See the Advanced Configuration section for more information. When configured as a Controlled-Voltage source (voltage amplifier), the amplifier will provide an  output voltage that is constant and proportional  to the control (input) voltage. If the load’s imped- ance changes, the amplifier will seek to maintain  this ratio of input to output voltage by increasing or  decreasing the current it produces, as long as it is  within the amplifier’s ability to create the required  Figure 6.2 – Input to Output Comparison,  Controlled-Current Operation current. Use this mode if you want the output volt- age waveform to be like the input waveform (see ...
  • Page 21 8300 SERIES OPERATOR’S MANUAL – SECTION 6 with DIP switch settings will be sufficient for many  taching a load before configuring your amplifier for  applications, this compensation setting may also  Controlled Current operation. This will allow you  be adjusted in the field by installing a custom com- to verify that the input signal and the amplifier are  pensation network. The following section describes  operating correctly.  methods for determining proper compensation  Once this initial check is completed, power down  requirements when operating in Controlled-Current  the amplifier, attach your load, and move the  mode. Operation Mode DIP switch (SW#4, located on  the Master amplifier module’s back panel) to the  6.1.3 Controlling Compensation for CC Operation DOWN position to place the amplifier in CC mode.  AE Techron 8300 series amplifiers can be config- STEP 2: Determine Required Compensation. ured for either Controlled Voltage (CV) or Con- When operating an amplifier in Controlled- trolled Current (CC) mode of operation. When  Current mode, the load becomes an integral part  operating the amplifier in Controlled Voltage (CV)  of the system. In order to determine the required mode, compensation is not required. However, ...
  • Page 22 8300 SERIES OPERATOR’S MANUAL – SECTION 6 STEP 3: Enable Compensation Network low level (typically 0.25 to 2.0 volts). A limited-rise- time, repetitive pulse of low duty cycle is preferred.  If your load inductance is between 50 μH and 500  μH, and your load resistance is less than 5 ohms,  Observe the output current through a current  then you can likely use Compensation Network  monitor or current probe. Look for clean transition  1 for your application. If your load inductance  edges. The presence of ringing or rounding on the  is between 500 μH and 1.5 mH, and your load  transition edges indicates compensation problems.  resistance is less than 5 ohms, then you can likely (See Figure 6.5.) use Compensation Network 2 for your application.  If a change in compensation is necessary, an ad- (See Figure 6.3). These compensation networks  justment to the resistor component of the Compen- are enabled when Compensation Network 1 DIP  sation circuit is probably required.  switch (SW#6) or Compensatlon Network 2 DIP  switch (SW#5) on the Master amplifier module is  If the output current waveform is ringing, the circuit  set to the ON (UP) position.

  • Page 23: Driving Reactive Loads

    8300 SERIES OPERATOR’S MANUAL – SECTION 6 If the output current waveform is neither under  ters in the resistor location of the compensation  damped or over damped, but the top of the square  circuit because this can decrease stability and  wave is not level, then you should instead de- may increase inductance. crease the capacitor value (see Figure 6.8). • The parallel capacitor in the RC network serves  to increase stability but can be removed, if it is  not required for system stability. If the parallel  capacitor is used, it will usually decrease the  value of resistance needed. • In multiple amplifier systems, expect to decrease  Figure 6.8 – Square Wave Showing a  the value of R5 in series systems by 1/2. Decrease in C is Required 6.2 Driving Reactive Loads When making adjustments: Like all switching amplifiers, 8300 series ampli- Resistor: Increase or decrease resistance values fiers are able to reuse the energy returned from ...

  • Page 24: Maintenance

    8300 SERIES OPERATOR’S MANUAL – SECTION 7 7 Maintenance • Vacuum cleaner • Damp cloth (use water only or a mild soap  Simple maintenance can be performed by the user  diluted in water) to help keep the equipment operational. The fol- To ensure adequate cooling and maximum ef- lowing routine maintenance is designed to prevent  ficiency of the internal cooling fans, the amplifier’s  problems before they occur. See the Trouble- front and rear grills should be cleaned periodically.  shooting section, for recommendations for re- To clean the amplifier grills and filter, complete the  storing the equipment to operation after an error  following steps: condition has occurred. 1. Turn the amplifier OFF. Disconnect the ampli- Preventative maintenance is recommended after fier from its power source. the first 250 hours of operation, and every three  2. The front grill for each amplifier module is  months or 250 hours thereafter. If the equipment  secured to the module front panel by magnets. ...

  • Page 25: Troubleshooting

    8300 SERIES OPERATOR’S MANUAL – SECTION 8 8 Troubleshooting 3. Wait three to five minutes for the Power Supply  capacitors to discharge. 8.1 Introduction & Precautions 4. Open the back acess door and check the fol- lowing:  This section provides a set of procedures for  • Check to make sure the breaker switch on  identifying and correcting problems with the 8300  all amplifier modules is in the ON position. series amplifier. Rather than providing an exhaus- •   I nspect the modules for loose or discon- tive and detailed list of troubleshooting specifica- nected wires or connectors. tions, this section aims to provide a set of short- • Inspect the bus bars connecting the ampli- cuts intended to get an inoperative amplifier back  fier module’s outputs for any signs of char- in service as quickly as possible. ring or melting. The procedures outlined in this section are direct- • Inspect the entire lengths of wires and  ed toward an experienced electronic technician;  cables for breaks or other physical damage. it assumes that the technician has knowledge of ...

  • Page 26: Run/Standby Led Remains Amber

    8300 SERIES OPERATOR’S MANUAL – SECTION 8 amplifier’s internal transformers may need to be  8.7.2 Check for Inadequate Airflow replaced. Please see the Factory Service infor- 1. Check air filters. Over time they can become  dirty and worn out. It is a good idea to clean  mation at the end of this section. the air filters periodically with a mild detergent  8.6 Run/Standby LED Remains Amber and water. 2. Visually inspect fans to assure correct op- When the Run/Standby LED is lit solid amber, the  eration while amplifier is On (I). When an  amplifier is in Standby mode. Press the Power  OverTemp fault occurs, the amplifier fans will  switch to the ON position to place the amplifier in  automatically be placed in continuous high- Run mode. speed operation. Any inoperative, visibly slow,  or reverse-spinning fan should be replaced.  If the amplifier does not return to run mode, check  Please see the Factory Service information at to see if the High/Low Line, Overtemp, or Fault ...

  • Page 27: Factory Service

    8300 SERIES OPERATOR’S MANUAL – SECTION 8 8.9 Factory Service To clear the Fault condition, follow these steps: If the troubleshooting procedures are unsuccess- 1. Turn off the signal source. ful, the amplifier may need to be returned for  2. Turn off the AC mains. Factory Service. All units under warranty will be  3. Turn AC mains power back on. If the Fault  serviced free of charge (customer is responsible  LED doesn’t illuminate again, press the Power  for one-way shipping charges as well as any cus- switch to place the amplifier in Run mode and  tom fees, duties, and/or taxes). Please review the  turn the signal source on. Warranty at the beginning of this manual for more  4. If the Fault LED is still illuminated and the Fault  information. condition doesn’t clear, return the amplifier for  All service units must be given Return Authoriza- Factory Service. See the Factory Service infor- tion by AE Techron, Inc. before being returned.  mation at the end of this section. Return Authorizations can be requested on our ...

  • Page 28: Appendix A: Gain Dip Switch Settings

    8300 SERIES OPERATOR’S MANUAL – APPENDIX A Appendix A: Gain DIP Switch Settings Use this chart to determine the required settings  switches ON = Gain of 39.85, all switches OFF =  for DIP switches 9 through 16 to achieve the am- gain of 0 (signal will not be amplified). plifier gain you need for your application. Note: All  ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 39.85 39.69 39.54 39.38 39.22 39.06 38.91 38.75 38.60 38.44 38.29 38.13 37.97 37.81 37.66 37.50 37.35 37.19 37.04 36.88 36.72...
  • Page 29 8300 SERIES OPERATOR’S MANUAL – APPENDIX A ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 33.29 33.13 32.97 32.81 32.66 32.50 32.35 32.19 32.04 31.88 31.72 31.56 31.41 31.25 31.10 30.94 30.79 30.63 30.47 30.31 30.16 30.00 29.85 29.69 29.54 29.38 29.22 29.06 28.91 28.75 28.60 28.44...
  • Page 30 8300 SERIES OPERATOR’S MANUAL – APPENDIX A ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 25.63 25.47 25.31 25.16 25.00 24.85 24.69 24.54 24.38 24.22 24.06 23.91 23.75 23.60 23.44 23.29 23.13 22.97 22.81 22.66 22.50 22.35 22.19 22.04 21.88 21.72 21.56 21.41 21.25 21.10 20.94 20.79...
  • Page 31 8300 SERIES OPERATOR’S MANUAL – APPENDIX A ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 17.97 17.81 17.66 17.50 17.35 17.19 17.04 16.88 16.72 16.56 16.41 16.25 16.10 15.94 15.79 15.63 15.47 15.31 15.16 15.00 14.85 14.69 14.54 14.38 14.22 14.06 13.91 13.75 13.60 13.44 13.29 13.13...
  • Page 32 8300 SERIES OPERATOR’S MANUAL – APPENDIX A ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 10.31 10.16 10.00 9.85 9.69 9.54 9.38 9.22 9.06 8.91 8.75 8.60 8.44 8.29 8.13 7.97 7.81 7.66 7.50 7.35 7.19 7.04 6.88 6.72 6.56 6.41 6.25 6.10 5.94 5.79 5.63 5.47...
  • Page 33 8300 SERIES OPERATOR’S MANUAL – APPENDIX A ON = DIP Switch UP   OFF = DIP Switch DOWN SW#9 SW#10 SW#11 SW#12 SW#13 SW#14 SW#15 SW#16 Gain 2.66 2.50 2.35 2.19 2.04 1.88 1.72 1.56 1.41 1.25 1.10 0.94 0.79 0.63 0.47 0.31 0.16 Information subject to change 96-8006125_11-03-21...

  • Page 34: Appendix B: Amplifier Module Wiring Diagrams

    8300 SERIES OPERATOR’S MANUAL – APPENDIX B Appendix B: Amplifier Module Wiring Diagrams Information subject to change 96-8006125_11-03-21...
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