Wide-bandwidth, high-power digital amplifier (37 pages)
Summary of Contents for AE Techron 7800 Series
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7800 Series High-Power, High-Precision AC/DC Linear Power Amplifiers Operation Manual 574.295.9495 | www.aetechron.com 2507 Warren Street, Elkhart, IN 46516...
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This includes any damage to ITEMS EXCLUDED FROM WARRANTY another product or products resulting from such a This AE Techron Warranty is in effect only for failure defect. of a new AE Techron product which occurred within the Warranty Period.
0.1 ohm to 8 when there is a failure. ohms. The 7800 series is designed and built for applica- tions where large surge currents or long duration Information subject to change 96-8007105_07-14-23...
Figure 2.1 – Cable Lift Rings CAUTION 2.3 Check Contents CAUTION indicates hazards that could In addition to the 7800 Series cabinet, your ship- result in potential injury or equipment ment should include the following: or property damage. Once again, note the explanation of the hazard and the 1.
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• Wait at least 3-5 minutes after disconnecting AC power before opening the access door. • Wear safety goggles. • Contact AE Techron Technical Support for any questions or concerns. 2.5.1 Connecting the Load Please refer to the connection instructions for your 7800-Series model.
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Complete the following steps to connect the load to the 7800 series system output connectors. 1. Route your output cables through the grommet in the panel located at the top of the cabinet back. See Figure 2.5. Make sure the cable is ...
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2.7. load; fire can result. Complete the following steps to connect the load to the 7800 series system output connectors. 1. Route your output cable through the grommet in the panel located at the top of the cabinet back. See Figure 2.9. Make sure the cable ...
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7800 SERIES OPERATION – SECTION 2 2. Locate the four-position terminal barrier block on the back panel of the Master amplifier mod- ule (see Figure 2.10).Connect the negative ter- minal of the load to the SAMPLED COMMON terminal. Figure 2.11 – Wiring for unbalanced or balanced input connector (see Figure 2.11). The SIM card includes both an Unbalanced Input BNC jack and a Balanced Input “WECO” terminal block connector, an Input Select ...
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7800 SERIES OPERATION – SECTION 2 Figure 2.12 – Location of AC Mains Barrier Strip near the bottom of the amplifier. Locate the the line voltage. The amplifier will not operate power block, which is mounted behind the fuse properly outside these limits. and AC inlet panel (see Figure 2.12). Complete the following steps to connect the ampli- 4. Route the 10 AWG, 5 conductor power input fier to your three-phase power source: cable into the amplifier through the cable strain ...
2.6 Startup Procedure the input signal. The LCD screen on the upper module will display the VPEAK/VRMS/IPEAK/ Complete the following steps to power up the 7800 IRMS meters (multi-display) (see Figure 2.14). Series system. A. Depress the front panel SYSTEM POWER switch to turn the 7800 Series cabinet ON. Figure 2.14 – Amplifier LCD Screen when the system is enabled Information subject to change 96-8007105_07-14-23...
These modules are interlocked togeth- System Power– This illuminated switch is lo- er, with one Master amplifier controlling the opera- cated on the upper front of the 7800 series system tion of all of the amplifier modules in the system. cabinet and control the AC power to the system. With the exception of the power/breaker switch, a Press to enable power to the amplifier system. ...
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7800 SERIES OPERATION – SECTION 3 The following sections describe the controls and ling the Standby status will have the Standby and indicators found on the 7800 Series amplifier mod- Stop LEDs lit, while all other modules will have the ules. Ready and Standby LEDs lit. Pressing the Enable button on an amplifier module other than the mod-...
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7800 SERIES OPERATION – SECTION 3 fier module reporting the fault condition will clear Navigation Buttons the condition and return all amplifiers modules to Master Amplifier Module only. Run or Stop mode, depending on the status mode The Navigation buttons provide four arrow keys to the system was in when the fault condition oc- allow navigation through the different voltage and ...
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7800 SERIES OPERATION – SECTION 3 Figure 3.4 – Main Status Indicators for Multi-Amplifier Systems Indicator is lit Indicator is not lit Indicator may be lit Main Status of One or Main Status of Action Needed to Return More Amps in...
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7800 SERIES OPERATION – SECTION 3 Figure 3.5 – Fault Status Indicators for Single Amplifiers (continued) Fault Status Action Needed to Clear Fault Main Status Reported on Condition and Return to Indicators LCD Display State of Operation Run Mode Overvoltage: This indicates that the AC To clear an Overvoltage fault condi- mains voltage is more than +10% of nominal.
In systems with multiple amplifier modules, the This section provides an overview of Back-Panel Fault Status indicators on each module are used controls and connectors found on the 7800 series to determine the operational status of that module. amplifier modules. Please refer to Figure 3.7 for When a fault condition occurs on any module in visual locations.
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7800 SERIES OPERATION – SECTION 3 AC Power Connector - This is a NEMA style twist BNC Input Connector - This input option provides lock, 4 pin (208V) or 5-pin (400V), three-phase a standard unbalanced input. connector. Input Selector Switch - This switch selects which Low-Voltage Fuse - This is a 1A slow blow type input connector is active, the BNC or Weco.
Standby Mode on Overload disabled • 4.3 Configuration Settings Controlled If you need to make changes to your amplifier’s by DIP Switches configuration, please follow the instructions con- The 7800 series provides eight DIP switches lo- tained in this chapter for accessing the main board cated on the main board of each amplifier module. DIP switches and jumpers, and the power supply Most configuration settings can be made using board settings..
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When the Voltage Input DIP switch is in the Up po- fied. sition, the amplifier can be configured for use with Place the Low-Pass Filter DIP switch on the Mas- alternate multi-amp connectors in a multi-amp sys- ter amplifier module in the Up position (default) to tem (not available on 7800 series models). When disable the low-pass filter. To enable the low-pass this switch is in the Down position, the amplifier filter, place the DIP switch in the Down position. can be configured for use with standard multi-amp SW#4: Gain (20/6) connectors in a multi-amp system.
7800 SERIES OPERATION – SECTION 4 shunt across pins 2 and 3 on the main board of the is in the Down position on the Master amplifier Master amplifier modulev. module, a 2-Hz high-pass filter on the inputs pre- vents the transmission of DC signal. Standby on Overload The 7800 series amplifier’s IOC (Input/Output 4.4 Configuration Settings Controlled Comparator) Distortion Alert circuit continuously...
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7800 SERIES OPERATION – SECTION 4 below the main and display boards. To access the Bi-Level Power Supply Switch, complete the fol- lowing steps to remove the front panel and access the bi-level power supply switch. IMPORTANT: Before removing the Front Panel of any amplifier module, make sure the amplifier ...
7800 SERIES OPERATION – SECTION 5 NOTE: Before configuring your 7800 series sys- 5 Applications tem using these remote configurations, please 5.1 Remote Status and Control using contact AE Techron Technical Support for the the SIM Interlock I/O Connector proper settings to use for your application.
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7800 SERIES OPERATION – SECTION 5 5.1.2 Remote Amplifier Status and Reset The SIM Interlock I/O Connector can be used to Use a male, 25-pin D-Sub connector and high- quality wire to build the circuit. Figure 5.3 sche- create a circuit to monitor remotely one or more amplifier conditions, including Run status, Over- matic details the circuit and components required for all status and reset functions.
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7800 SERIES OPERATION – SECTION 5 Remote Signal of Run Condition Remote Signal of OverVoltage Condition Purpose: LED, when lit, signals Run state. Purpose: LED, when lit, signals Overvoltage condition. Method: Use a 6mA series resistor of 4.02K-ohm Method: Use a 6mA series resistor of 4.02K-ohm for LED or OPTO, tie Run (PIN 12) to –24V source...
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7800 SERIES OPERATION – SECTION 5 When Interlock (PIN 4) is shorted to Digital Ground IMPORTANT: The amplifier must be configured for (PIN 17), the amplifier is placed in Standby mode. Ready mode at startup (factory default) or the Run When switch is open, the amplifier is released to button must be pressed at the amplifier module front panel at startup. The Remote Enable/Standby the Run condition. Signal Type: DC circuit will not function if the Startup to Standby Latch has been activated on the amplifier. Level when Asserted: 0 to 8 V Level when Deasserted: 10 to 15 V 5.1.4 Remote Monitoring of Current...
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7800 SERIES OPERATION – SECTION 5 5.1.5 Remote Monitoring of Temperature Using the SIM-BNC Interlock connector located on the back panel of the amplifier, you can remotely monitor the temperature at the heat-sinks of the amplifier. Remote Monitoring of Temperature Purpose: Use a voltage meter to monitor tempera- ture at the heat-sinks. Method: Connect a voltage meter to monitor the temperature at the heatsinks of the amplifier. Con-...
This is a potentially current. Use this mode if you want the output volt- dangerous condition for both the AE Techron am- plifier and for any user who might come in contact age waveform to be like the input waveform (see with the amplifier output terminals. ...
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7800 SERIES OPERATION – SECTION 5 When operating in Controlled Current (CC) mode, 5.2.3 Controlling Compensation for CC Operation AE Techron 7800 series amplifiers can be config- a compensation circuit is required to ensure ac- curate output current. Since the load is a critical ured for either Controlled Voltage (CV) or Con- circuit component in CC mode, the inductive and trolled Current (CC) mode of operation.
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7800 SERIES OPERATION – SECTION 5 STEP 3: Determine if Default or Custom Compensation is Required. If your load inductance falls outside of the mid- If your load inductance is between 200 microHen- range, or if your load resistance is greater than...
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7800 SERIES OPERATION – SECTION 5 Procedure WARNING 1. Turn the power to the amplifier “OFF”. 2. Remove the four hex-head screws, located Do not attempt to access the Main Board along the left and right edges of the amplifier while the amplifier is running. Turn the amplifier off and disconnect the AC front panel using a Torx T15 driver.
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7800 SERIES OPERATION – SECTION 5 STEP 7: Optimizing the Compensation Values If the output current waveform is rounded, the circuit is overdamped: You have too little gain and Remember the load you are connecting is a should increase resistance (see Figure 5.15).
7800 SERIES OPERATION – SECTION 5 1. Turn the system OFF. Disconnect the amplifier 6 Maintenance from its power source. Simple maintenance can be performed by the 2. Remove the four Torx-head screws, located user to help keep the equipment operational. along the left and right edges of the front panel The following routine maintenance is designed of each amplifier module using a Torx T15 ...
7800 SERIES OPERATION – SECTION 6 7 Troubleshooting Check the fuse F1 on each amplifier module. If the 7800 series system is not operating correctly, Locate the fuse cover on the amplifier back panel review the topics below for help with troubleshoot- and turn the cover counter-clockwise to remove. ing the problem. If the condition or error you are...
If the troubleshooting procedures are unsuc- mode. If the OverTemp pulse is extremely short, cessful, the 7800 series system may need to be as in the case of defective wiring or switches, the returned for Factory Service. All units under war- OverTemp pulse may be too brief to observe.
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