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Pin #

Function

Description

Signal

Type

Level when

Asserted

Level when

Deasserted

Notes

Applications

I SUM1–

Multiple Amplifier

Summing, Ampli

fier 1

Planned for use in multiple amplifier

configurations - paralleled and run

ning Controlled Current Mode

Currently not used.

I SUM2–

Multiple Amplifier

Summing, Ampli

fier 2

Planned for use in multiple amplifier

configurations - paralleled and run

ning Controlled Current Mode

Currently not used.

I SUM3–

Multiple Amplifier

Summing, Ampli

fier 3

Planned for use in multiple amplifier

configurations - paralleled and run

ning Controlled Current Mode

Currently not used.

OverLoad Out Overload output

(amplifier output is

clipping).

–24V

When amp is normal, this pin

is pulled to –24V through a

47.5K-ohm resistor; when amp is in

Overload state, this pin is ground

ed. Do not exceed 6 milliamps.

Remote Signal of Overload Condition:

LED, when lit,

signals Overload condition. Use a 6mA series resistor

of 4.7K-ohm for LED or OPTO, tie to –24V source (PIN

13).

OverVoltage

Out

Overvoltage output

(High AC line volt

age).

–24V

When amp is normal, this pin

is pulled to –24V through a

47.5K-ohm resistor; when amp

is in Overvoltage state, this pin

is grounded. Do not exceed 6

milliamps.

Remote Signal of Overvoltage Condition:

LED, when

lit, signals Overvoltage condition. Use a 6mA series re

sistor of 4.7K-ohm for LED or OPTO, tie to –24V source

(PIN 13).

Reset

–15V

Tie to PIN 13 (–24V dc) and create

a –15V dc source; <2mA required

for reset. Connect the –15V dc

source to PIN 25 (Reset) through a

1K buffer resistor to reset.

Reset from Standby:

Use a dry contact switch and

voltage regulator to return amp to Ready/Run condition

after Overload conditions. Assert –15V for at least 100

ms to clear error condition.

Gray shaded areas indicate pin not used / feature not implemented.

Blue shaded areas indicate used only in multi-amplifier systems.

Содержание 7548

Страница 1: ...796HC Operator s Manual Single Channel Industrial Amplifiers for Demanding High Power Systems APPLIES TO UNITS WITH MAINBOARD PART NUMBER 65 7796135 3 574 295 9495 www aetechron com 2507 Warren Street Elkhart IN 46516 ...

Страница 2: ......

Страница 3: ... of our authorized service centers of your need for warranty service you will receive an authorization to return the product for service All components must be shipped in a factory pack or equivalent which if needed may be obtained from us for a nominal charge We will take corrective actions and return the product to you within three weeks of the date of receipt of the defective prod uct or will m...

Страница 4: ...ld immunity test EN 61000 4 4 2004 A1 2010 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Electrical fast transient burst immunity test EN 61000 4 5 2006 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Surge immunity test EN 61000 4 6 2009 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Immunity to conducted distu...

Страница 5: ...ld immunity test EN 61000 4 4 2004 A1 2010 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Electrical fast transient burst immunity test EN 61000 4 5 2006 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Surge immunity test EN 61000 4 6 2009 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Immunity to conducted distu...

Страница 6: ...ld immunity test EN 61000 4 4 2004 A1 2010 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Electrical fast transient burst immunity test EN 61000 4 5 2006 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Surge immunity test EN 61000 4 6 2009 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Immunity to conducted distu...

Страница 7: ... Board 18 4 3 Configuration Settings Located on the Main Board 18 4 4 Adjusting the Bi Level Power Supply Switch 21 5 Applications 22 5 1 Remote Status and Control using the SIM Interlock I O Connector 22 5 2 Controlled Current Operation 26 5 3 Multi amplifier Systems 30 6 Maintenance 31 6 1 Clean Amplifier Filter and Grills 31 7 Troubleshooting 32 7 1 Introduction Precautions 32 7 2 Visual Inspec...

Страница 8: ... 5 Ready Run Mode or Standby Mode on Power Up Setting 20 Figure 4 6 Standby Mode on Overload Setting 20 Figure 4 7 Bi Level Power Switch Location 21 Figure 5 1 Remote Status and Control Pinouts 22 Figure 5 2 Remote Run Standby Monitor 22 Figure 5 3 Remote Status and Reset Schematic 23 Figure 5 4 Remote Enable Standby 24 Figure 5 5 Remote Current Monitoring 25 Figure 5 6 Remote Current Monitoring A...

Страница 9: ...er 3 phase AC mains Other features include DC enabled four quadrant linear amplifier Standard SIM Specialized Input Module fea tures unbalanced BNC balanced Phoenix type 3 pin input and 25 pin Interlock I O connec tors Optional SIM modules are available or can be created to provide additional features for unique applications Built in protection circuitry safely provides for sustained full power ou...

Страница 10: ...fiers are tested and inspected for dam age before leaving the factory Carefully unpack and inspect the amplifier for damage Please note any damage for future reference and notify the shipping company immediately if damage is found Also please save the shipping carton and materials as evidence of damage and or for return ing the amplifier for repair Never attempt to lift the amplifier with out assi...

Страница 11: ...connecting the terminals marked SAMPLED COMMON and CHASSIS GROUND see Figure 2 2 This resistor should NOT be removed WARNING Removing this re sistor can cause dangerous output and or damage to the load unless configuring multiple amplifiers in series See the AE Techron Multi Amplifier Con figuration Guide for more information on these advanced configurations Figure 2 1 Connecting the Load ELECTRIC...

Страница 12: ...IS GROUND terminal can be connected to an external ground point such as the rack chassis 2 5 Connecting the Input Signal The signal is connected to the amplifier through a SIM Specialized Input Module Card located Figure 2 3 Close up of SIM card Figure 2 4 Wiring for Unbalanced or Balanced Input Connector on the amplifier back panel see Figure 2 3 The standard SIM card includes both an Unbalanced ...

Страница 13: ...sition DOWN 3 Apply AC power to the amplifier 4 Move the AC Mains Switch Circuit Breaker to the on position UP to turn the amplifier ON Wait for the amber READY and green RUN LEDs to illuminate 5 Adjust the level of your input signal source to achieve the desired output level 6 Use the Navigation Buttons to navigate through the various voltage and current measurement functions on the LCD dis play ...

Страница 14: ...been Enabled The system will automatically proceed to Run mode when all amplifiers in the system achieve Standby mode Stop For stand alone amplifiers Stop will place the amplifier in Stop mode both Standby and Stop LEDs will be lit When the amplifier is part of a multi amp system pressing the Stop button on any amplifier in the system will place that amplifier in Stop mode and all other amplifiers...

Страница 15: ...ure Figure 3 3 Main Status Indicators for Stand Alone Amplifiers Indicator is lit Indicator is not lit Indicator may be lit Main Status Indicators State of Operation Action Needed to Return to Run Mode Run Ready Standby Stop Run mode The amplifier s high voltage transformers are energized and the unit will amplify the input signal Run mode is initiated by 1 the Enable push button or 2 when the amp...

Страница 16: ... Overload condition will not place the amplifier in Standby mode If the amplifier has been configured to be forced to Standby on Overload the ampli fier will be placed in Standby mode when the Overload condition occurs To remedy the Overload fault during operation turn down the level of the input signal until the Fault indicator turns off To clear an Overload fault condition when the amplifier is ...

Страница 17: ...ion and return the system to Run mode See the Applications section of this manual for more information on remote amplifier operation Run Ready Standby Stop Run Ready Standby Stop System Not Ready If one or more of the amplifiers has no LEDs lit the amplifier has no power or has not been turned on and the other amplifiers in the system will be held in Standby mode In Standby mode the amplifier s lo...

Страница 18: ...s Under normal operation with the factory default settings an Overload condition will not place the system in Standby mode If the system has been configured to be forced to Stand by on Overload the system will be placed in Standby mode when the Fault indicator lights To remedy the Overload fault during operation turn down the level of the input signal until the Overload indicator turns off To clea...

Страница 19: ...d connectors found on the 7548 7794 7796 7796HC amplifier Please refer to Figure 3 7 for visual locations AC Power Connector This is a NEMA style twist lock 4 pin 208V or 5 pin 400V three phase connector See Section 2 6 Connecting the AC Supply for terminal connections Low Voltage Fuse This is a 1A slow blow type 600 volt rated fuse AC Mains Switch Circuit Breaker This dual function power switch a...

Страница 20: ...verload disabled If you need to make changes to your amplifier s configuration please follow the instructions con tained in this chapter 4 2 Accessing the Main Board The amplifier Main Board can be accessed by removing the amplifier front panel IMPORTANT Before removing the Front Panel make sure the amplifier is turned off for at least 3 5 minutes and the AC mains are disconnected 1 Turn the power...

Страница 21: ... 3 3 Controlled Voltage or Controlled Current Setting To allow the amplifier s output voltage to be con trolled by its input voltage signal CV mode place Jumper J4 in the RIGHT position right pair of pins To allow the amplifier s output current to be controlled by its input voltage signal CC mode place Jumper J4 in the LEFT position left pair of pins See Figure 4 3 Figure 4 1 Master or Follower Se...

Страница 22: ...un Mode on power up when Jumper J11 is in the Left position factory default To set the amplifier to power up to Standby Mode place Jumper J11 in the Right position See Fig ure 4 5 4 3 6 Standby Mode on Overload When this option is enabled the amplifier will move into Standby Mode when it senses an activa tion of the IOC Input Output Comparator Distor tion Alert circuit The IOC Distortion Alert cir...

Страница 23: ...ont Panel make sure the amplifier is turned off for at least 3 5 minutes and the AC mains are disconnected 1 Turn the power to the amplifier OFF 2 Remove the four hex head screws located along the left and right edges of the amplifier front panel using a Torx T15 driver 3 Remove the front cover by pulling straight towards you 4 Locate the Bi level Power Supply Switch as shown in Figure 4 7 5 Adjus...

Страница 24: ...current monitor Figure 5 1 maps the pins used for these applications For a detailed chart of all DB 25 pinouts see Appendix 1 Figure 5 1 Remote Status and Control Pinouts Figure 5 2 Remote Run Standby Monitor 5 1 1 Remote Run Standby Status Monitor Using the SIM BNC Interlock connector located on the back panel of the amplifier you can remotely monitor the Run Standby status of the amplifier Remot...

Страница 25: ...Level when Asserted 24V Level when Deasserted 0V Note When amp is normal this pin is pulled to 24V through a 47 5K ohm resistor when amp is in Overtemp state transistor Q37 turns on and sources chassis ground as an output Do not ex ceed 20 milliamps An Overtemp condition will force the amp to Standby The amplifier will automatically move to Run when temperature cools to operating levels Figure 5 3...

Страница 26: ... OPTO tie OverVoltage Out PIN 24 to 24V source PIN 13 Signal Type DC Level when Asserted 24V Level when Deasserted 0V Note When amp is normal this pin is pulled to 24V through a 47 5K ohm resistor when amp is in Overvoltage state transistor Q29 turns on and sources chassis ground as an output Do not exceed 20 milliamps Reset from Standby Purpose Switch when thrown returns amp to Run condition afte...

Страница 27: ... the amplifier you can remotely monitor current output Remote Monitoring of Current Output Purpose Use a voltage meter to monitor output current Method Connect a voltage meter to monitor the output current being produced by the ampli fier Connect across PIN 6 I MON and PIN 10 Sampled Common See Figure 5 5 Signal Type DC Level when Asserted 20A V Level when Deasserted 0V Purpose Use a voltage meter...

Страница 28: ... con stant and proportional to the control input volt age If the load s impedance changes the amplifier will seek to maintain this transconductance ratio of input voltage to output current by increasing or decreasing the voltage it produces as long as it is within the amplifier s ability to create the required voltage Use this mode if you want the output cur rent waveform to be like the input wave...

Страница 29: ...fely and effectively Figure 5 9 Factory installed Default RC Network We recommend that you power up and enable the amplifier in Controlled Voltage mode without at taching a load before configuring your amplifier for Controlled Current operation This will allow you to verify that the input signal and the amplifier are operating correctly Once this initial check is completed power down the amplifier...

Страница 30: ...d Configuration section IMPORTANT If CC2 is selected you must cal culate the compensation requirements for your custom RC network and install the network on your amplifier main board before operating the amplifier in CC mode STEP 4 Enabling Your Compensation Setting STEP 5 Optional Verify Suitability of Default Compensation CC1 If desired the following values of the components contained in the def...

Страница 31: ...dges The presence of ringing or rounding on the transition edges indicates compensation problems See Figure 5 11 Figure 5 11 Compensation Effects on Waveform STEP 7 Optimizing the Compensation Values If a change in compensation is necessary an ad justment to the resistor component of the Compen sation circuit is probably required If the output current waveform is ringing the circuit is underdamped...

Страница 32: ...llows multiple 7000 Series ampli fiers to be configured as a series output system to increase the available output voltage to the load The SIM BNC OPTOC kit also includes a BNC connector safety cover The SIM BNC OPTOC module is required for all Series configurations and should be used in con junction with the DB9M CABLE see below DB9M CABLE The DB9M OPTOC CABLE is a high voltage Interlock cable th...

Страница 33: ...Damp cloth use water only or a mild soap diluted in water To ensure adequate cooling and maximum ef ficiency of the internal cooling fans the amplifier s front and rear grills should be cleaned periodically To clean the amplifier grills and filter complete the following steps 1 Turn the amplifier OFF Disconnect the ampli fier from its power source 2 Remove the four Torx head screws located along t...

Страница 34: ...to troubleshoot the amplifier while it is operating please take time to complete a visual inspection of the internal components of the amplifier 1 To perform a Visual Inspection first turn OFF the power at the rear circuit breaker 2 Disconnect the AC mains plug from the ampli fier 3 Wait three to five minutes for the Power Supply capacitors to discharge 4 Remove the 16 single screws from the top c...

Страница 35: ...ect Replace if neces sary with 1A slow blow fuse 7 5 OverVoltage Warning Message The amplifier will protect itself from AC mains volt age that is 10 above the voltage indicated on the back panel If the AC mains voltage is more than 10 above the operating voltage reduce the AC mains voltage to the proper level When the line voltage condition is corrected the amplifier will automatically reset If th...

Страница 36: ...ks responsible for negative voltages When running typical sine type wave forms read ings at both monitor points should be similar A deviation can be an indication of a DC offset that is causing one side of the amplifier to work harder than the other To convert the monitor point voltage readings to degrees Celsius Temperature in degrees Celsius V x 100 273 Where V Voltage at Pin ex 3 73 V x 100 Deg...

Страница 37: ...inate again turn the signal source on 4 If the Fault LED is still illuminated and the Fault condition doesn t clear return the amplifier for Factory Service Please see the Factory Ser vice information at the end of this section 7 9 Factory Service If the troubleshooting procedures are unsuccess ful the amplifier may need to be returned for Factory Service All units under warranty will be serviced ...

Страница 38: ...ction Ratio 7548 Better than 65 dB 7794 7796 7796HC Better than 70 dB 8 2 Display Control Status I O Front Panel LED Displays Indicate Run Ready Standby Stop and Fault conditions in the output stage LCD Display Lists type of fault condition and gives suggested corrective action Soft Touch Switches for Run Enable Stop Reset LCD Display Can be configured for up to four simul taneous displays reporti...

Страница 39: ...available Operating Temperature 10 C to 50 C 50 F to 122 F Maximum Output Power de rated above 30 C 86 F Humidity 70 or less non condensing Cooling Forced air cooling from front to back through removable filters via four 7548 or six 7794 7796 7796HC 100 ft3 min fans No space is required between rack mounted amplifiers Air filters are removable from the rear via one fastener per side and may be eli...

Страница 40: ... startup factory default or the Run button must be pressed at the amplifier front panel at startup Remote to Standby Short PIN 4 of amplifier to Digital Ground PIN 17 using dry contact switch or optocoupler When closed places amplifier in Standby Multi amplifier Systems Simultaneous Enable or Disable of amplifiers Daisy chain Interlock PIN4 across amps if sharing the same Sampled Common power conn...

Страница 41: ... PIN 23 and OverVoltage PIN 24 14 Common Ground before Sense Resistors Current monitor reference Voltage between Common and Sampled Common is voltage on the Current Sense resistor Possibly series amplifiers will not need current reporting on the High side amp since its current will be same as Master 15 1 IN Differential Follower Input AC or DC Up to 200V peak 0V Only used in multiple amplifier con...

Страница 42: ...lliamps Remote Signal of Overload Condition LED when lit signals Overload condition Use a 6mA series resistor of 4 7K ohm for LED or OPTO tie to 24V source PIN 13 24 OverVoltage Out Overvoltage output High AC line volt age DC 24V 0V When amp is normal this pin is pulled to 24V through a 47 5K ohm resistor when amp is in Overvoltage state this pin is grounded Do not exceed 6 milliamps Remote Signal...

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