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PF1352 USER MANUAL REV A 12/21/15

3.4 OPERATING

CONSIDERATIONS

The output voltage and frequency may be varied at any time while the unit is loaded.
It is recommended that the load be disconnected (off) while changing the range setting.
This will prevent potentially damaging transients from reaching the load.

3.5

CURRENT LIMIT AND CONSTANT CURRENT MODE

The PF1352 current limit feature allows the user to preset a current limit point. If the

load current exceeds this value (RMS) the output of the unit will drop to zero and the

display will indicate the event by flashing “

O/I

”. This condition can be cleared by

pressing the

MODE

button. This will return the unit back to power on status. If the

current limit is not preset the default value of 10 amps for the 135V range and 5 amps

for the 270V range will be used and the unit will go into a “constant current” mode

when the default value is reached. In this mode, the output voltage will drop in

response to an overload. This action will maintain the current at a fixed value. This can

be a useful feature for trouble shooting. When the unit is in this mode the display will

flash

“

C/C

”. The unit will come out of this mode once the load current is reduced below

the default value.

3.6

OPERATION UNDER FAULT CONDITIONS.

The PF1352 AC source incorporates several modes of protection:

CURRENT LIMIT AND

CONSTANT CURRENT See paragraph 3.5 above.

OVER-VOLTAGE

(O/V) If the measured output voltage is 20% higher than

the full scale value, the unit will revert to zero output

and

the

display

will

flash

O/V

. This is a very rare and will

most likely indicate that the unit needs service. Pressing

the

MODE

button will reset this condition.

OVER-TEMPERATURE If the power amplifier temperature exceeds a safe value, the

output

voltage

will

revert to zero and the display will

flash

O/T

. Pressing the

MODE

key will reset this fault

(assuming

unit

has

cooled).

SHORT CIRCUIT

In the event that the output is short circuited, the unit will

latch-up

and

the

display

will

flash

O/L

. Power must be

cycled to off for a period of about 60 seconds to reset this

fault.

the

short

removed, the unit should recover when

switched

back

on.

(Note

the unit has a light load or no load

may

take

much

3 minutes for the circuit to reset.

This

due

residual

charges left on internal capacitors.)

Содержание 108-017-006

Страница 1: ...LY PART NO 108 017 006 FOR SERVICE ASSISTANCE CONTACT BEHLMAN CUSTOMER SERVICE DEPARTMENT PHONE TOLL FREE 1 800 874 6727 OR WRITE BEHLMAN CUSTOMER ELECTRONICS DEPARTMENT 80 CABOT COURT HAUPPAUGE NY 11788 PHONE 631 435 0410 FAX 631 951 4341 FOR SALES INFORMATION PHONE 631 435 0410 USA 800 874 6727 FAX 631 951 4341 ...

Страница 2: ...Material Authorization RMA number This number must be attached to the equipment sent back for warranty repair Equipment must be shipped back to Behlman prepaid No collect shipments will be accepted Behlman shall be excused from supplying warranty service if the equipment covers have been removed or if the unit has been subject to unauthorized repair All service outside the scope of this Warranty s...

Страница 3: ... as well as delicate electronics components If equipment is returned without prior authorization the shipment will be refused and the customer will be liable for all shipping handling and repair costs When packing for reshipment use the original shock absorbent material and shipping container to prevent additional damage to the equipment Ensure that the return authorization numbers RMA is availabl...

Страница 4: ...in the presence of flammable gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove equipment covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with power applied Under certain conditions dangerous ...

Страница 5: ...tions due to the exposure of hazardous voltage that can be lethal if contacted Neither Behlman Electronics Hauppauge NY USA nor any of the subsidiary sales organizations can accept any responsibility for personnel material or inconsequential injury loss or damage that may result from improper use of the equipment and or accessories provided For additional safety related technical information conta...

Страница 6: ...ations 3 3 Power Display Mode 3 4 Operating Considerations 3 5 Current Limit and Constant Current Mode 3 6 Operation Under Fault Conditions 3 7 Limiting Load In rush Currents 3 8 Operation Into Linear Loads 3 9 Driving Reactive Loads 3 10 Driving Lamps 3 11 Driving Motors 3 12 Operation With Remote Control 4 Maintenance and Trouble Shooting 4 1 Maintenance 4 2 Troubleshooting 4 3 Performance Verif...

Страница 7: ...r factor correction circuit to reduce input harmonics associated with the conversion process used These models are housed in an all steel EIA rack mountable enclosure The block diagram below illustrates the conversion process performed by this equipment AC power is applied and converted to DC by an active power factor corrected boost converter This DC is then used to provide raw power for a class ...

Страница 8: ... REGULATION 0 7 No load to Full load resistive LINE REGULATION 0 7 for 10 line change METERING VOLTAGE 0 5 of reading 2 LSD 0 1V res CURRENT 1 of reading 5 LSD 0 1A res FREQUENCY 1Hz 0 1Hz res POWER 2 5 of F S 150 1200W 1W res POWER FACTOR 2 5 of F S 150 1200W 0 99 PHYSICAL 19 482mm W x 17 431mm D x 3 5 88mm H EIA standard rack mount cabinets with RM kit WEIGHT 39 lbs 17 6 kgs OPERATING TEMPERATUR...

Страница 9: ... a Returned Material Authorization number that must be obtained from Behlman Any shipment sent without an RMA will be refused and the customer will be liable for all shipping costs This equipment ships with a line cord and a copy of the user technical manual provided It is recommended that the serial number be verified and retained in case of any warranty claims The warranty for this unit is one y...

Страница 10: ...e of dripping or misting fluids For continuous full power output the ambient operating temperature should not exceed 40 degrees Celsius WARNING INSTALLATION AND OPERATION MAY EXPOSE PERSONNEL TO HAZARDOUS VOLTAGE AND CURRENT LEVELS 2 2 INPUT POWER CONNECTION This unit operates from any AC voltage from 95 270V with a frequency between 47 and 63 Hertz A detachable line cord is provided that mates wi...

Страница 11: ...ntact with operating personnel The use of warning labels is highly recommended The output circuit of this device is transformer coupled and floating with respect to the input line Either side of the AC output may be tied to earth or other potential The maximum continuous floating voltage that can be applied between either output terminal and ground is 500VDC Dielectric strength is 1500Vrms for 60 ...

Страница 12: ...elected between local and remote operation A version units do not use this switch 6 SHIFT key Used in conjunction with control keys to set output parameters Set s the adjustment resolution to x0 1 x1 x10 or x100 7 Control Keys Used in conjunction with SHIFT key to set display and output parameters MODE selects the parameter to be adjusted UP DOWN provides adjustment with the currently selected res...

Страница 13: ...PF1352 USER MANUAL REV A 12 21 15 FIGURE 3 1 PF1352 CONTROLS AND INDICATORS 2 1 3 4 5 10 6 7 12 9 8 11 H L G ...

Страница 14: ...d be evident and the front panel display should appear as in figure 3 2 below 4 Note that the default multiplier is Vx1 0 This indicates the output voltage may now be set in 1 volt increments using the UP or DOWN keys To change the step size hold in the SHIFT key At the same time press the MODE key Each time the MODE key is pressed the multiplier step size will increase by a factor of ten The avai...

Страница 15: ...T switch button Note that is also permissible to energize the load gradually by setting the voltage to zero turning on the output and stepping the voltage up The voltage frequency and current limit may be set at any time during the operation of the power supply Press the MODE key to change which parameter is to be adjusted Use the SHIFT and MODE keys to select the step size as previously described...

Страница 16: ...ouble shooting When the unit is in this mode the display will flash C C The unit will come out of this mode once the load current is reduced below the default value 3 6 OPERATION UNDER FAULT CONDITIONS The PF1352 AC source incorporates several modes of protection CURRENT LIMIT AND CONSTANT CURRENT See paragraph 3 5 above OVER VOLTAGE O V If the measured output voltage is 20 higher than the full sc...

Страница 17: ... will flash O T Normal operation can resume once the unit has cooled to a safe level and the MODE key or reset button is pressed 3 7 LIMITING LOAD IN RUSH CURRENTS Loads that present high inrush currents may be started by limiting the current at start up This can be done externally with a simple series resistor and relay The resistor is placed in series with the load for the estimated or measured ...

Страница 18: ...s to insert a limiting impedance in series with the load This could be a fixed resistor or NTC negative temperature coefficient thermistor Also zero crossing switching can be employed The most obvious way to prevent a high in rush current is to apply the load with the voltage set to zero or some low value and energize the load slowly by turning up the voltage 3 10 DRIVING LAMPS Tungsten filament l...

Страница 19: ...ition the standard versions allow remote monitoring of output voltage frequency current power and power factor System status may also be polled to check for operational problems such as overloads or over temperature The specific information for each option will be included at the end of this document as an appendix Note that only one option may be included Check the rating label to see if options ...

Страница 20: ...age per section 3 Load does not operate unit indicates proper output OUTPUT switch is off load not connected between HI and Lo AC output Check load is switched on Check load is connected properly See section 2 and 3 AC output low or fluctuates constant current C C flashes Output overload Reduce load Output voltage does not change Unit in power monitor mode Set to adjust mode see section 3 Output f...

Страница 21: ...TION SUGGESTED TYPE MINIMUM SPECIFICATIONS 1 AC WATTMETER YOKAGAWA WT 230 AC volts amps frequency 0 1 to 500Hz 2 TEST LOAD BANKS AVTRON 12 OHM 5 1 2KW 48 OHM 5 1 2KW 3 OSCILLOSCOPE TEK TDS 2000 SERIES 20 MHz Bandwidth 4 VARIABLE AUTO TRANSFORMER SUPERIOR ELECTRIC MODEL 1020 or equal 0 TO 250V 2KW 60Hz 5 DISTORTION METER HP339A or equal 1 0 Full Scale to 500Hz Tuned rejection type 6 TEST LEADS PROB...

Страница 22: ...TE Local 4 3 3 Set the variac to provide 120V AC to the DUT Switch the DUT on and confirm the displays are active and the cooling fans are on 4 3 4 Set the DUT frequency control to provide a 100Hz output 4 3 5 Set the DUT voltage to provide 100V output and set the output switch to on Confirm an output of 100V 100Hz using the wattmeter 12 48 ...

Страница 23: ...to the values listed in table 4 3 In each case record the actual output voltage and confirm that it is with in limits TABLE 4 3 DISPLAYED SETTING MEASURED OUTPUT VOLTAGE LIMITS 50 49 65V 50 35V 100 99 4V 100 6V 150 149 15V 150 85V 200 198 9V 201 1V 270 268 5V 271 5V 4 3 8 With the load off set the wattmeter to read frequency Set the DUT to the frequencies listed in table 4 4 Confirm that the actua...

Страница 24: ...NG MEASURED OUTPUT AMPS LIMITS 1 0A 91A 1 1A 2 0A 1 88A 2 12A 5 0A 3 85A 5 15A 7 5A 7 32A 7 67A 10 0A 9 8A 10 2A 4 3 10 With the 12 ohm load applied set the output voltage of the DUT to provide output the powers levels listed in table 4 6 At each setting confirm that the output power reading on the DUT agrees with the external wattmeter These values should be within 2 5 of reading 1 digit TABLE 4 ...

Страница 25: ...and record the drop in voltage with load This should be less than 2 0V Note that the output voltage shall be measured as close to the output terminals as practical The wattmeter voltage sense input should be tied to the rear panel of the DUT Failure to do so may cause errors due to wiring voltage drops 4 3 11 CHECK OF OUTPUT DISTORTION AND NOISE Set the DUT as follows RANGE low Frequency 50Hz outp...

Страница 26: ... USER MANUAL REV A 12 21 15 SECTION 5 MECHANICAL OUTLINE PF1352 MECHANICAL OUTLINE inches millimeters 3 47 88 14 3 39 86 03 3 00 76 20 19 00 482 60 18 20 462 34 17 00 431 80 1 40 35 56 22 00 558 80 0 92 23 37 ...

Страница 27: ...Command Tab Use this tab to set and retrieve the power supplies output parameters such as Voltage Current Limit Frequency Output and Voltage Range settings This tab also provides the ability to save and recall a power supplies state 2 Trigger Tab Use this tab to setup and run a trigger event Events can be defined for Voltage Frequency and Current Limit 3 Status Tab Use this tab to read the power s...

Страница 28: ...between the windows operating systems Windows 7 and above should use the applications with the Win7 extension Windows XP or Windows Vista operating systems should use the applications with the WinXP extension Note While the power supply is in Boot Loader mode it will also reset all power on configuration parameters to their factory default state To exit Boot Loader mode without uploading new firmw...

Страница 29: ...to the appropriate drop down fields select the RS 232 interface and click Open If the initialization of the port is successful Serial Connection Opened will appear in the display box USB Configuration To setup a USB port the user must select the Comport into the appropriate drop down fields select the USB interface and click Open If the initialization of the port is successful Serial Connection Op...

Страница 30: ...tton to determine the IP address of the unit after power on Figure 6 3 shows the configuration dialog box output after the Discover Ethernet Devices button was clicked 6 3 2 COMMAND TAB Figure 6 4 shows the Command Tab which contains the main SCPI commands for controlling the output of the power supply Figure 6 4 Command Tab ...

Страница 31: ...er and Power Factor buttons work similarly CLS or RST buttons send the clear or reset commands to the power supply SAV and RCL buttons take the selected state value 0 1 2 or 3 and sends the save or recall command for the selected state to the power supply The Send button allows the user to enter a command into the Enter Command text box and send it to the power supply The Read button can be used t...

Страница 32: ... Tab More information regarding the TRIGger subsystem can be found in the programming manual for the power supply Steps for setting up a trigger event Set Trigger Source select BUS or IMMediate and click the Set button Use the Get button to query the trigger source and display the response o BUS trigger source will wait for TRG bus trigger or TRIG command to enter the Sweeping state ...

Страница 33: ...ger event function VOLT FREQ and CURR and click the Set button for that function Use the Get button to query the mode and display the response o LIST when the mode is set to LIST define the list points in the List Commands text box for that function The list points should be separated by commas Up to ten list points can be defined Use the Set button to submit the points and the Get button to query...

Страница 34: ...WEeping Trigger Event in Process bit 3 that define the TRIGger subsystem state 6 3 4 STATUS TAB Figure 6 6 shows the Status Tab which contains the SCPI status commands for the power supply The user can query the power supply for the operational questionable status byte and standard event status registers Figure 6 6 Status Tab Figure 6 6 shows the Status Tab which contains the SCPI status commands ...

Страница 35: ...onse The ESE button sets the Standard Event Status Enable register to the decimal value in the ESE text box The ESE button queries the power supply for the Standard Event Status Enable register and displays the response The OPER and OPER COND buttons queries the power supply for the Operation Event register and Operation Condition register and displays their response The QUES and QUES COND buttons...

Страница 36: ...Loader mode allowing the user to reset the communication parameters if the power supply becomes unresponsive after a parameter change To exit Boot Loader mode without uploading new firmware move the external switch to the down position while the power supply is still powered on More information regarding the Boot Loader mode can be found in the Boot Loader section Figure 6 7 Communication Tab More...

Страница 37: ... in the Hostname text box and sets the power supplies hostname Quotations around the hostname should NOT be included in the textbox they are added automatically by the application before sending the command The Get button queries the power supply for the hostname and displays the response The TCP socket Set button takes the new socket decimal value in the TCP Socket textbox and sets the TCP socket...

Страница 38: ...llowing the user to reset the password if the password is forgotten To exit Boot Loader mode without uploading new firmware move the external switch to the down position while the power supply is still powered on More information regarding the Boot Loader mode can be found in the Boot Loader section More information regarding password protection commands can be found in the programming manual of t...

Страница 39: ...or the SCPI version and displays the response 6 3 7 Boot Loader Behlman Remote Interface software offers a Boot Loader application that can be opened from File Boot Loader The external switch located next to the USB port determines the mode that the power supply is placed in when powered on When the external switch is in the up position at power on the power supply will be loaded in Boot Loader mo...

Страница 40: ...the power supply 1 Power on the power supply with the external switch up Connect the USB power supply to the computer 2 Open up Behlman s Boot Loader application Figure 6 9 Behlman s Boot Loader Application 3 Connect to the USB power supply by clicking the Connect button Figure 6 10 After Clicking Connect ...

Страница 41: ...gram by clicking the Load Hex File button Figure 6 11 After Loading Hex File 5 Erase the flash program the power supply and verify the program by clicking the Program button Figure 6 12 Program 6 Run the program by clicking the Run Application button Figure 6 13 Run Application ...

Страница 42: ...y with IP address 90 0 0 32 will respond to the webpage request The hostname can be changed using the SYSTem COMMunicate LAN HOSTname command More information about the hostname can be found in section 6 2 5 The System Control tab Trigger Control tab and Network Configuration tab are password protected In order to view those tabs the user must enter the username and password Factory default Userna...

Страница 43: ...age range of the power supply by entering the values into the Control Output section and clicking Submit The current output of the power supply is tracked in the Output section The System Control tab also displays the last error in the error queue similar to what SYSTem ERRor NEXT command would return The last error can be removed from the error queue using the Remove Error button Figure 6 15 Syst...

Страница 44: ...ting to control the output while the trigger state is not in IDLE will add the error 212 Command Ignored LIST in Progress to the error queue Click the Abort Trigger button to force the trigger state to IDLE this button will not affect the INITiate CONTinuous state Figure 6 16 shows the System Control Tab while the trigger state is not in IDLE Figure 6 16 System Control Tab while Sweeping ...

Страница 45: ...e 6 17 Trigger Control Tab To enter the trigger event points the user must first set the trigger mode to either List or Step and click the Submit Trigger Parameters button Up to ten event points separated by commas may be entered in the textbox when the mode is set to List and only one point can be entered in the textbox when the mode is set to Step The power supply will ignore any additional poin...

Страница 46: ...step will be updated The voltage list will accept the full parameter list of 50 0 100 0 115 0 125 0 The frequency step will only accept the first parameter given 305 0 The current limit will ignore the parameters given since the current limit mode is set to Fixed The result is shown in figure 6 19 More information about the TRIGger subsystem can be found in section 6 2 3 Figure 6 18 Before Updatin...

Страница 47: ...tile memory that the power supply will use during power on or reboot Changes to the Ethernet parameters can be made in this section and saved to nonvolatile memory by clicking the Save Configuration button In order for the new parameters to take effect the power supply must be restarted either by a power cycle or by clicking the Reboot button Figure 6 20 Network Configuration Tab Figure 6 21 Netwo...

Страница 48: ... Reboot button is a software reset The error queue status registers and trigger parameters will be reset to their default states Figure 6 21 shows the Network Configuration tab after reboot Important reconnection steps can be found on this page ...

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