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Features and Specifications

Specifications

Table 1.3

Specifications for XFR 2800 W Series Supply with GPIB Interface Installed (7.5 V to 40 V)

Models

7.5-300

12-220

20-130

33-85

40-70

Program Resolution

Voltage
Current
OVP

1.16mV
42.0mA
1.16mV

1.8mV
30.8mA
1.8mV

3.08mV
18.2mA
3.08mV

5.1mV
13.0mA
5.1mV

6.2mV
9.8mA
6.2mV

Program Accuracy

Voltage

Current

OVP

10mV
±0.12%
900mA
±0.1%
80mV

50mV
±0.12%
750mA
±0.1%
150mV

75mV
±0.12%
500mA
±0.1%
200mV

75mV
±0.3%
425mA
±0.1%
330mV

75mV
±0.3%
350mA
±0.1%
400mV

Readback Resolution

Voltage
Current

1.16mV
42.0mA

1.8mV
30.8mA

3.08mV
18.2mA

5.1mV
13.0mA

6.2mV
9.8mA

Readback Accuracy

Voltage

Current

Apply accuracy specifications according to the following voltage program accuracy example:

Set a model 20-130 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 75mV ± 0.12% of the set voltage of 10 volts.

30mV
±0.12%
900mA
±0.1%

60mV
±0.12%
750mA
±0.1%

75mV
±0.12%
500mA
±0.1%

75mV
±0.3%
425mA
±0.1%

75mV
±0.3%
350mA
±0.1%

Содержание Sorensen GPIB-XFR

Страница 1: ...TM GPRF 01XN Rev B www programmablepower com Internal GPIB Interface for XHR XFR Series Programmable DC Power Supplies Operation Manual GPIB XHR GPIB XFR GPIB XFR3...

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Страница 3: ...Internal GPIB Interface for XHR XFR Series Programmable DC Power Supplies Operation Manual 2007 AMETEK Programmable Power Inc All rights reserved Exclusion for Documentation UNLESS SPECIFICALLY AGREED...

Страница 4: ...This page intentionally left blank ii...

Страница 5: ...and equipment safety Always ensure that facility AC input power is de energized prior to connecting or disconnecting any cable In normal operation the operator does not have access to hazardous volta...

Страница 6: ...This page intentionally left blank iv...

Страница 7: ...to the instructions of AMETEK is opened modified or disassembled in any way without AMETEK s consent or is used in combination with items articles or materials not authorized by AMETEK The Buyer may n...

Страница 8: ...This page intentionally left blank vi...

Страница 9: ...1 Remote Mode Operation 22 Local Mode Operation 23 Setting Local Lockout 23 IEEE 488 Controller Connection 24 Internal PCB Jumper Selections 24 OVP Selection 24 TTL Shutdown 25 User Signals 26 Connect...

Страница 10: ...EDs 48 Section 4 Calibration Introduction 49 Voltage Mode Calibration 50 Voltage Calibration Setup 50 Voltage Program Calibration Procedure 50 Voltage Readback Calibration Procedure 50 Current Mode Ca...

Страница 11: ...designated fault conditions Both the voltage and current output are precisely programmed directly in volts and amps with 16 bit resolution Additionally the built in DVM and current shunt measure the...

Страница 12: ...sed service request over voltage protection and remote operation Foldback in CV or CC mode with reset Local Lockout capability Software calibration Programmable Functions Output voltage and current So...

Страница 13: ...4mV 6 2mV 4 2mA 6 2mV Program Accuracy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 60 power supply to 10 volts The e...

Страница 14: ...rrent OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 60 power supply to 10 volts The expected result will be within the range of 10 volt...

Страница 15: ...1 80mV 50mV 0 12 750mA 0 1 150mV 75mV 0 12 500mA 0 1 200mV 75mV 0 3 425mA 0 1 330mV 75mV 0 3 350mA 0 1 400mV Readback Resolution Voltage Current 1 16mV 42 0mA 1 8mV 30 8mA 3 08mV 18 2mA 5 1mV 13 0mA 6...

Страница 16: ...nt OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 130 power supply to 10 volts The expected result will be within the range of 10 volts...

Страница 17: ...cifications according to the following voltage program accuracy example Set a model 20 50 power supply to 10 volts The expected result will be within the range of 10 volts 50mV 0 12 of the set voltage...

Страница 18: ...curacy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 50 power supply to 10 volts The expected result will be within th...

Страница 19: ...B interface printed circuit board PCB Initial Inspection On first receiving your unit perform a quick physical check Ensure each package contains a power supply with its GPIB interface board installed...

Страница 20: ...Request LED SRQ Comes on at power up if the PON SRQ switch is set to on You can enable the SRQ LED during normal operation with the SRQ command Error LED ERR Indicates when a programming error has occ...

Страница 21: ...Error LED ERR Indicates that a programming error has occurred Clear with the error query command Address LED ADR Indicates that the unit is being addressed by the master controller SW1 Switch 1 Remot...

Страница 22: ...active low See page 27 2 3 default User TTL S D line active high J103 Remote OVP Control Selection closed default See page 24 open Note All other jumpers are not user selectable LED INDICATORS CR89 Re...

Страница 23: ...elect the state of the Power ON Service Request See Power On Service Request PON SRQ on page 21 3 Remote Local Operation Use the rear panel PON REM switch to select remote or local startup of the powe...

Страница 24: ...o A5 to set the primary address for the power supply See Table 2 2 IEEE 488 Primary Address Selection Switch 0 OFF OPEN Switch 1 ON CLOSED Table 2 2 IEEE 488 Primary Address Selection Note Ensure you...

Страница 25: ...ubplate on page 17 Table 2 3 SRQ Switch Selection Remote Local Operation Remote Local Mode Startup Start the power supply either in local mode or in remote mode by setting the power ON remote PON REM...

Страница 26: ...use the interface commands to control the output of the power supply from a computer See Section 3 Operation for a complete list of device dependent commands available with this interface For informa...

Страница 27: ...you can change power supply control to remote mode by ensuring that the GPIB REN line is asserted and then sending any software command to get into remote mode and the OUT ON command to restore the ou...

Страница 28: ...power supply to local operation by using the GPIB software commands or the by the front panel LOCAL switch control of the OVP trip level changes from software control to the front panel OVP potentiom...

Страница 29: ...The current range of the shutdown line is 1 10mA See Figure 2 5 J7 User Signal Connector Circuit Block Diagram on page 27 for a schematic of the J7 connector containing the shutdown user line You can...

Страница 30: ...can sink a current of 5mA each Figure 2 5 J7 User Signal Connector Circuit Block Diagram on page 27 shows the portion of the option board schematic which contains the J7 connector Use the schematic a...

Страница 31: ...ed and shipped with the power supply interface card To install the ferrite block 1 Position the block no more than 5 cm 2 from the power supply end of the J7 user cable 2 Open the ferrite block housin...

Страница 32: ...ion and Configuration User Signals 28 Operating Manual for GPIB for XHR XFR Series Power Supply Figure 2 6 J7 User Cable with Ferrite Block J7 User Cable Ferrite Block To User Custom Interface To J7 C...

Страница 33: ...ces could include programmable AC or DC power supplies oscilloscopes signal generators digital voltmeters universal counters readouts relays and printers Use the GPIB interface to relay GPIB instructi...

Страница 34: ...Acceptor Handshake Device must properly receive remote multiline messages T6 Talker Device must be able to transmit L4 Listener Device must receive commands and data Interface Functions DC1 Device Cl...

Страница 35: ...arallel Poll does not reset the service request The power supply must be configured remotely to respond to a parallel poll with either a 1 or 0 on one of the DIO lines if the unit is requesting servic...

Страница 36: ...al status indicators Serial Poll In a serial poll the controller polls each device Example The power supply responds with a 8 bit status byte defined as follows Table 3 2 Serial Poll Status Register i...

Страница 37: ...er or COMMAND parameter parameter You can enter commands in upper or lower case lettering Example MASK FOLD mask fold Do not further abbreviate command names or parameters Example MASK FOLD MK FOLD MA...

Страница 38: ...efault unit is amps float float A float mA time The time in seconds or milliseconds If no unit is given the default unit is seconds float float s float ms voltage Vlo Vhi The voltage in volts or milli...

Страница 39: ...Format COMMAND parameter COMMAND parameter parameter LF Most computer controllers automatically send LF with output statements Order You may send commands in any order keeping in mind that only those...

Страница 40: ...a new output voltage or current is specified FOLD Sets foldback mode for the supply HOLD Enables or disables voltage current setting hold mode for the supply IMAX Sets an upper soft limit on the prog...

Страница 41: ...the present hold mode setting ID Asks for the power supply s model name and master EPROM version IMAX Asks for the supply s soft current limit setting IOUT Measures the supply s actual current output...

Страница 42: ...cept for voltage programming VHI Sets the voltage output to the high calibration point VLO Sets the voltage output to the low calibration point VRDAT Calculates the slope and intercept for voltage rea...

Страница 43: ...listed in the status register AUXA 1 ON 0 OFF Controls the AUXA output signal level at rear panel connector J7 7 Active low Initial value AUXA 0 AUXA Asks for the present set value of the AUXA output...

Страница 44: ...lears the ERR bit in the accumulated status register See Error Codes on page 47 Response ERR error number Example ERR 0 if no error FAULT Asks for the state of the fault register A bit is set in the f...

Страница 45: ...output terminal This value is at the high end of the power supply s current range and is read by an external device connected as part of the calibration procedure Refer to this value as IHI and recor...

Страница 46: ...n amps default or in milliamps This programmed current is the actual output in CC mode or the current limit in CV mode Range 0 to model maximum output current IMAX Initial value 0 amps ISET Asks for t...

Страница 47: ...to respond to a variety of fault conditions with a request for service to the IEEE 488 bus controller With SRQ ON the SRQ line will be asserted true whenever the FAU bit in the supply s serial poll r...

Страница 48: ...ed unmasked Response UNMASK fault mask where fault mask is the decimal equivalent of the total bit weights for the operating conditions as listed in the status and fault registers See Accumulated Stat...

Страница 49: ...programmed voltage range Refer to the output value as VRHI and record it to use as input with the VRDAT command Set CMODE ON before using this command See also the calibration procedures in Section 4...

Страница 50: ...2 The error ERR bit is reset in the accumulated status status and serial poll registers with an error query ERR 3 The accumulated status register is cleared with an accumulated status query ASTS 4 A f...

Страница 51: ...laced word number separator or terminator Example OFF SRQ VOUT 6 MASK ERR 5 Number Out of Range Specified a value for the command which was outside of the allowed range 6 Attempt to Exceed Soft Limits...

Страница 52: ...ocessor successfully recovered from an illegal operating code The event is transparent to the GPIB communications bus and the GPIB interface continues to function normally The red COP LED at CR166 ind...

Страница 53: ...rent sensing shunt resistor rated for 150 of maximum output current 0 25 accuracy or better Connection wires rated for the unit s maximum output current and voltage A GPIB equipped computer to send th...

Страница 54: ...and record the output voltage as shown on the external voltmeter 5 Send the command VDATA vlo vhi where vlo and vhi are the values read from the voltmeter when the VLO and VHI commands were sent When...

Страница 55: ...here vlo and vhi are the values read from the voltmeter after the VRLO and VRHI commands were sent The processor calculates the offset value required to calibrate the power supply When the power suppl...

Страница 56: ...and IHI VHI to the supply Measure and record the output voltage shown on the external voltmeter 5 Calculate ILO and IHI from the voltages read from the external voltmeter and the shunt resistance I V...

Страница 57: ...own on the external voltmeter Send IRHI again 5 Calculate IRLO and IRHI from the voltages taken from the external voltmeter and the shunt resistance I V R 6 Send the command IRDAT ilo ihi to the power...

Страница 58: ...on the PCB of jumper J65 3 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply 4 Send the command OVCAL to the power supply The ADR LED will light during OVP calibrat...

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