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Programmable High Precision DC Power Supply

1. p y OR ota y Error Queue Always Zero CONDition EVENt NABle lt NRf gt ENABle Output Queue Service Status Request Byte Enable Register Register Standard Event Registers MSB Oo ms H 1 61 hy Event Event Enable Pa o av Register Register os Pats a Logical orc OH orc Mav mE os o STB Operation Complete Query Error Device Specific Error Execution Error SRE SRE Master Summary Status MSS MSB Measurement Summary Bit EAV Error Available QSB Questionable Summary Bit MAV Message Available ESB Event Summary Bit RQS MSS Request for Service Master Summary Staus OSB Operation Summary Bit Always Zero Note RQS bit is in serial poll byte ESR ESE lt NRf gt MSS bit is in STB response ESE Measurement Event Registers Operation Event Registers Event Event Condition Event Enable Condition Event Enable Register Register Register Register Register Register Reading Overflow Pulse Trigger Timeout Reading Available Current Limit Current Limit Tripped Power Supply Shutdown Always Zero CONDition Always Zero CONDition LEVEN NABle lt NRf gt ENABIle LEVEN ENABle lt NRf gt ENABle 122 GW INSTEK REMOTE CONTROL Event Registers The operation measurement and questionable status re
2. Command SENSe 1 PCURrent A VERage Function Returns the average number for pulse current measurement Example SENSe PCURrent AVERage Returns the average number Command SENSe 1 PCURrent MODE lt name gt Function Sets the pulse current measurement mode Description Name HIGH High pulse mode trigger on the rising edge LOW Low pulse mode trigger on the falling edge AVERage Average pulse measurement Example SENSe PCURrent MODE HIGH Sets the pulse current measurement mode to HIGH mode Command SENSe 1 PCURrent MODE Function Queries the pulse current measurement mode Example SENSe PCURrent MODE Returns the pulse current measurement mode Command SENSe 1 PCURrent TIME AUTO Function Sets the pulse current integetration time to automatic Example SENSe PCURrent TIME AUTO 98 Sets the pulse current integetration time to automatic GW INSTEK REMOTE CONTROL Command SENSe 1 PCURrent TIME HIGH lt NRf gt Function Sets the integration time for high pulse measurement Description lt NRf gt 33 3 833333 Step resolution of 33 3 Example SENSe PCURrent TIME HIGH 0 000233 Sets the integration time for high pulse measurement to 233uS Command SENSe 1 PCURrent TIME HIGH Function Queries integration time for high pulse measurement Example SENSe PCURrent TIME HIGH Returns the integration time for high pulses Command SENSe 1 PCURrent TIME LOW lt NRf gt
3. Function Queries the binary byte order Example FORMat BORDer Returns the binary byte order Output Commands Command OUTPut STATe lt b gt Function Turns the output on or off Description lt b gt 0 OFF Turn off the output 1 ON Turn on the output Example OUTPut STATe ON Turns on the output Command OUTPut STATe Function Queries the output state Example OUTPut STATe Returns the output state Command OUTPut RELay lt name gt Function Turns the external relay control signal on or off Description lt name gt ZERO Off ONE On Example OUTPut RELay ONE Turn the relay signal on Command OUTPut RELay Function Queries the state of the output relay 91 GW INSTEK PPH 1503 User Manual Example OUTPut RELay Returns the state of the output relay Command OUTPut OVP STATe lt b gt Function Turns OVP protection on off Desciption lt b gt 0 OFF Turns OVP off 1 ON Turns OVP on Example OUTPut OVP STATe ON Turn on OVP Command OUTPut OVP STATe Function Queries the status of the OVP function Example OUTPut OVP STATe Returns the status of the OVP function Command OUTPut OVP lt value gt Function Sets the OVP level Desciption lt value gt 0 00 15 00 Example OUTPut OVP 10 05 Sets the OVP voltage to 10 05V Command OUTPut OVP Function Queries the OVP voltage level Example OUTPut OVP 92 Returns the OVP voltage level GW INSTEK REM
4. Trip Relay Limit setting Current Output turns off due to Trip Mode 7 re ERN N O 1 i i i 1 i User turns output on and trip Relay A condition is i i corrected Otherwise output i will trip again on off 57 GW INSTEK PPH 1503 User Manual External Relay There are two ways to connect an external relay to Connection the unit 1 Using the the 5VDC relay output to drive an external relay Ensure the current doesn t exceed 150mA Power Supply 5VDC Relay i Relay Control OUT a T w Internal 4 OUT e NE Source 5VDC x 5 PEE IN H Protection Diodi GND 1 A Warning Do not short the 5VDC terminal to the chasis earth or to the control port GND otherwise it may damage the unit 2 Using an external power source to drive the external relay The voltage of the source cannot exceed 15V and the current cannot exceed 150mA 5V Power Supply 5VDC Relay Relay Control OUT A Q T 1 Internal OUT 4 h ai an Source 5VDC F T Protection Diode 5 i J i IN r External Source GND 1 _ 4 r 1 15VDC Max 58 GW INSTEK SAVE RECALL SAVE RECALL Save Settings Description Five groups of system settings are available Parameter data Listed below are the settings that are available for 00 500V 2 0000A OutputState Off Voltage Current DispType Actual V and
5. Function Sets the integration time for low pulse measurement Description lt NRf gt 33 3 833333 Step resolution of 33 3 Example SENSe PCURrent TIME LOW 0 000233 Sets the integration time for low pulse measurement to 233uS Command SENSe 1 PCURrent TIME LOW Function Returns the integration time for low pulse measurement 99 GW INSTEK PPH 1503 User Manual Example SENSe PCURrent TIME LOW Returns the integration time for low pulse measurement Command SENSe 1 PCURrent TIME A VERage lt NRf gt Function Sets the integration time for the average pulse measurement Description NRf 33 833333 step resolution of 33 3 Example SENSe PCURrent TIME A VERage 0 000233 Sets the integration time for average pulse measurement to 233 microseconds Command SENSe 1 PCURrent TIME A VERage Function Returns the integration time for the average measurement Example SENSe PCURrent TIME A VERage Returns the integration time for the average measurement Command SENSe 1 PCURrent SYNChronize STATe lt b gt Function Sets the triggering option for pulse current measurement Description lt b gt 0 OFF Digital trigger mode 1 ON Pulse level trigger mode Example SENSe PCURrent SYNChronize ON 100 The trigger mode is set to the pulse level trigger GW INSTEK REMOTE CONTROL Command SENSe 1 PCURrent SYNChronize STATe Function Queries the pulse current measurement
6. Rst SAVO to SAV4 Parameter IntRate Use the arrow keys to select iene Setttings and press Enter Input the parameters and press Enter to save Range 0 01 to 10 00 AverRead 1 2 Use the arrow keys to select and press Enter Input the parameters and press Enter to save Range 1 to 10 42 GW INSTEK BASIC OPERATION Recall Setup Use the arrow keys to select Melee and press Enter Use the arrow keys select a stored setup Press Enter to confirm the recall See page 60 for further details Operation The unit switches to DWM mode automatically when the DVM inputs are used Using the DVM meter function doesn t affect the operation of the power supply The DMV function works with the output on or off Connection For the connection details for the front and rear terminals please page 28 Pulse Current Measurement Description Changes in the load current allows us to measure the pulse current There are three ways that pulse current can be measured 1 Measuring the peak current over a single cycle High Measurement 2 Measuring the trough current over a single cycle Low Measurement 3 Measuring the average current over a single cycle Average Measurement 43 GW INSTEK PPH 1503 User Manual t High Low gt Average The high and average measurements are triggered by the rising edge of the pulse current are performed for the time specified for the measure
7. numberpad enter 33 gt The time range can be set between 33uS and 833333uS The setting units are in microseconds uS Use the arrow keys to select RAAN press Enter and input the delay Press Enter again to confirm The TrigDelay has a settable range of 0 0 10000S The setting units are in seconds S Use the arrow keys to select and then press Enter Input the AverRead number and then press Enter again to confirm The AverRead setting has a settable range of 1 00 Use the arrow keys to select DARRE and press Enter Input the trigger level and press Enter again to confirm The TrigLeve parameter has a settable range of 0 5 000A The setting units are in amperes A Use the arrow keys to select pean and press Enter to go the Recall Setup menu Use the arrow keys to a setup Press the Enter key to confirm See page 60 for further details 47 GW INSTEK PPH 1503 User Manual Panel Operation Output Press the Ouput key D When the Output key is lit pulse current measurement is active When no pulse current is detected NO PULSE will be dispalyed in red on the LCD screen The unit will wait until the next pulse is detected The measurement gn gt HIGH settings can be edited during measurement The 2 H L A keys on the DO keypad can be used to perform CD AVER fast switching between measurement modes HN Note Te LCD display Ded will indicate whic
8. Displays the voltage and current settings V Set 15 000 V l Set 5 0000 A Parameter Displays the parameter settings For details on setting Settings parameters see page 20 The following figure shows the Display F1 parameter settings for example IntRate AverRead 1 2 CurrRange LimMode PowOnSetup OutputRelay O V P RecallSetup Status Display the current status of the instrument Display 18 Status Output mode CV mode SWB CC mode QD Overvoltage protection Enabled EB Disabled ap Alarm Enabled aap Disabled EEE Key lock Locked Unlocked EA GW INSTEK OVERVIEW Remote connectivity Local mode GG Remote GD TID CED Output Switching the Output Source Fro n CD Rea E REAR Output State on orga Function Display Function Keys Menu key Voltage Setting key Displays the unit functions There four functions F1 Basic power supply function V AND J F2 Digital Voltmeter function DVM F3 Pulse current meter function PULSE F4 Long integration current measurement function The basic power supply function is shown below The active function is shown in yellow Menu key to enter or exit from system settings Press the Voltage key to set the voltage settings See page 34 for operation details 19 GW INSTEK PPH 1503 User Manual Current Setting key Ep Front and Rear output toggle key Output key LOCK key 20 P
9. Measurement instantaneous current and the current of extremely Function short pulses The readback refresh rate data sampling period trigger delay and trigger level can be set by the front panel keys and is displayed on the LCD For details see page 43 Current This function can measure the average current of Measurement one or more pulses The readback refresh rate over Long Periods trigger mode and trigger timeout and trigger level settings are controled by the front panel keys and is displayed on the LCD display For details see page 49 Current Sink When the voltage of an external power source is Features greater than the high speed power supply output the system will automatically work as an electronic load to sink current For details see page 54 Digital Volt The PPH 1503 has a DVM function that can Meter measure DC voltages in the range of 0 20VDC For details see page 41 Remote Control To meet the various needs of customers the PPH 1503 is designed for USB GPIB and LAN remote control For details see page 67 12 GW INSTEK OVERVIEW Additional The PPH 1503 has external relay control signals for Features customers The relay control signals are synced to the pulse current measurement feature For details see page 56 Key Features Features e Low noise Thermostatically controled fan e Compact lightweight e 3 5 inch TFT display Operation e Constant voltage and c
10. lt NRf gt Page 102 SENSe 1 LINTegration TIME Page 102 SENSe 1 LINTegration TIME AUTO Page 102 SENSe 1 LINTegration TLEVel lt NRf gt Page 102 SENSe 1 LINTegration TLEVel Page 103 SENSe 1 LINTegration TEDGe lt name gt Page 103 SENSe 1 LINTegration TEDGe Page 103 SENSe 1 LINTegration TimeOUT lt NRf gt Page 103 SENSe 1 LINTegration TimeOUT Page 104 SENSe 1 LINTegration SEARch lt b gt Page 104 SENSe 1 LINTegration SEARch Page 104 SENSe 1 LINTegration FAST lt b gt Page 104 SENSe 1 LINTegration FAST Page 105 Status Commands STATus PRESet Page 105 STATus OPERation EVENt Page 105 STATus OPERation CONDition Page 105 STATus OPERation ENABle lt NRf gt Page 106 STATus OPERation ENABle Page 106 STATus MEASurement EVENt Page 106 STATus MEASurement ENABle lt NRf gt Page 106 STATus MEASurement ENABle Page 107 STATus MEASurement CONDition Page 107 STATus QUEStionable EVENt Page 107 STATus QUEStionable CONDition Page 107 STATus QUEStionable ENABle lt NRf gt Page 108 83 GW INSTEK PPH 1503 User Manual STATus QUEStionable ENABle Page 108 STATus QUEue NEXT Page 108 STATus QUEue ENABle lt list gt Page 108 STATus QUEue ENABle Page 109 STATus QUEue D Sable lt list gt Page 109 STATus QUEue DISable Page 110 STATus QUEue CLEar Page 110 System Commands SYStem LOCal Page 117 SYStem REMote Page 116 SYSTem COMMunicate LAN DHCP STATe lt b gt Page 112
11. output buffer will clear the message available bit To set the enable register mask for the status byte register and to generate an SRQ service request you must use the SRE command to write the appropriate decimal value to the register Bit Definition for the Status Byte Register Bit number Decimal Definition value 123 GW INSTEK PPH 1503 User Manual 0 Not used 1 Not used returns 0 1 Not used 2 Not used returns 0 2 Error Queue 4 Indicates that one or more errors are stored in the error queue 3 Questionable 8 One or more bits are set in the Summary bit questionable data register for enabled events 4 Message 16 Indicates that a message is available in Available bit the output queue 5 Standard Event 32 Indicates that one or more bits are set Summary bit in the standard event register for enabled events 6 Master 64 Indicates that a summary bit is set in Summary bit the status byte register for enabled summary bits 7 Unused 128 Not used returns 0 The status byte condition register is cleared when one of the following occurs e CLS command is used to clear the status byte register e The event registers are read The status byte enable register is cleared when the following occurs e When the SRE 0 is command is executed Use the STB query to read the status byte register The STB query will return the contents of the status byte r
12. returns 0 The instrument tried to read the 2 Query Error 4 error queue when the queue was empty or the queue was read before a new command was given or the input output buffers are full 3 Device Error 8 A self test calibration or other device specific error 4 Execution 16 An execution error Error 5 Command 32 A command syntax error Error 6 Not used 64 Not used return 0 7 Power On 128 This bit is set if the power supply has been reset from the last time 125 GW INSTEK PPH 1503 User Manual you read the event register The following will clear the standard event register The CLS command is executed eThe ERR query is used read the event register The following will clear the standard event enable register ESE 0 is written to the standard event enable register Status Byte Register Commands Command SRE lt Allowed values gt Function Service request enable register GRER command that writes a binary weighed value which determines which events in the status byte register are enabled Function Allowed Decimal vales 0 255 values Example SRE 7 0000 0111 Returns the SRER setting 0000 0111 Command SRE Function Queries the status byte enable register This command returns a binary weighted decimal number that indicates which bits are set in the status byte register The range is from 0 255 Example SRE 0000 0111 Return
13. 2006 95 EC For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Directive the following standards were applied EMC IEN 61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Conducted Emission Electrostatic Discharge IRadiated Emission ClassA EN 61000 4 2 1995 A1 1998 A2 2001 IEN 55011 2007 A2 2007 Radiated Immunity EN 61000 4 3 2006 Current Harmonics Electrical Fast Transients IEN 61000 3 2 2006 EN 61000 4 4 2004 Voltage Fluctuations Surge Immunity IEN 61000 3 3 1995 A2 2005 EN 61000 4 5 2006 Conducted Susceptibility EN 61000 4 6 1996 A1 2001 Power Frequency Magnetic Field EN 61000 4 8 1993 A1 2001 Voltage Dip Interruption EN 61000 4 11 2004 Safety Low Voltage Equipment Directive 2006 95 EC Safety Requirements IEC EN 61010 1 2001 137
14. I GPIBAddr 16 GPIBFormat Exponential HighTime 33us LowTime Sus AverTime IntTime Timeout Operation each group Rst is shown as an example CurrRange 5A 1 00PLC AverRead 1 2 1 ONVEIRE Off LimMode IntRate Limit RelayControl Zero AverRead 3 Ji 0 10000 0 000A TrigDelay TrigLevel 3 TrigEdge TrigLevel 4 Rising 0 000A Press the Menu key to enter the main menu interface Use the up and down arrow to select the option ECS gt Press Enter to go to the Save Setup menu 59 GW INSTEK PPH 1503 User Manual Use the left and right arrow keys to select the desired save memory There are five Q A selections SAVO0 SAV1 SAV2 SAV3 VI SAV4 Press the Enter key to save the settings and return to the main interface Result The current settings on the unit will be saved to one of the memory locations GSAVO SAV4 Recall Settings Description There a total of 6 different memory settings that can be recalled Rst SAVO SAV1 SAV2 SAV3 SAV4 SAV5 Operation There are two methods to recall the 60 setup settings Method 1 Use the arrow keys to select mente via F1 F2 F3 or F4 from the display interface Press the Enter key to enter the Recall ne Setup interface k Use the left and right arrow keys to select a setup to recall Rst SAVO SAV4 A A l ia VE Press Enter to confirm and to return to em the ma
15. SYSTem COMMunicate LAN DHCP STATe Page 112 SYSTem COMMunicate LAN IPADdress lt IP address gt Page 113 SYSTem COMMunicate LAN IPADdress Page 113 SYSTem COMMunicate LAN AUTOip STATe lt b gt Page 113 SYSTem COM Municate LAN AUT Oip STATe Page 114 SYSTem COM Municate LAN SMASk lt Mask gt Page 114 SYSTem COMMunicate LAN SMASk Page 114 SYSTem COMMunicate LAN GATEway lt IP address gt Page 114 SYSTem COM Municate LAN GATEway Page 115 SYSTem COMMunicate LAN DNS lt Address gt Page 115 SYSTem COMMunicate LAN DNS Page 115 SYSTem COM Municate LAN MANualip STATe lt b gt Page 116 SYSTem COM Municate LAN MANualip STATe Page 116 SYSTem COMMunicate LAN APPLy Page 116 SYSTem VERSion Page 110 SYSTem ERRor Page 110 84 GW INSTEK REMOTE CONTROL SYSTem CLEar Page 111 SYSTem LFRequnecy Page 111 SYSTem POSetup lt name gt Page 111 SYSTem POSetup Page 112 SYSTem BEEPer STATe 0 1 OFF ON Page 116 SYSTem BEEPer STATe Page 117 System Related Commands IDN Page 118 RST Page 118 TST Page 118 WAI Page 119 IEEE488 2 Common Commands IEEE488 2 CLS Page 128 ESE lt Enable Value gt Page 127 ESE Page 127 ESR Page 127 OPC Page 128 OPC Page 128 SRE lt Enable Values gt Page 126 SRE Page 126 STBP Page 127 TRG Page 119 SAV lt NRf gt Page 119 RCL lt NRf gt Page 119 Command Details 85 GW INSTEK PPH 1503 User Manual Measurement Commands Command Function
16. for the SOURCE SOURCE wiring front panel source connections Use the GTL 203A cables for the SENSE SENSE sense connections Use the GTL 117 cables for the YM DVM connections Q MAXL MAX DVM r ISOLATION FROM EARTH AX Rear panel Rotate the screws counter connections clockwise to loosen the ports Insert the wires into the appropriate terminal according to the labels printed under the terminals 28 GW INSTEK GETTING STARTED Screw the terminals in a clockwise direction to tighten AN For safety considerations please keep in mind that the Note front panel and rear panel terminals are physically connected Wire Gauge Load wires must have enough current capacityto minimize cable loss and load line impedance Voltage drop across a wire should not excess 0 5V The following list is the wire current rating at 450A cm2 Wire Size AWG Maximum Current A 20 2 5 18 4 16 6 14 10 12 16 Turning the Output On Off Panel Operation Press the Output key to Conu Ss turn the output on The Output key will light up when the output is on The status display on the ga on LCD display will also turn on 29 GW INSTEK PPH 1503 User Manual When the output is turned on pressing the Output key again will turn the output off When the output is off the Output key will no longer be illuminated and the status on the LCD display will r
17. message 110 222 A specific range of error messages 110 222 220 A specific range of error messages and a single error message separated by a comma Example STATus QUEue ENABle 110 222 Enables error messages that are between error message 100 to 222 Command STATus QUEue ENABle Function Read the error and status messages that have been enabled Example STATus QUEue ENABle Returns the contents of the enabled error and status messages Command STATus QUEue DISable lt list gt Function Specifies which messages will not be placed in the error queue Description lt list gt 440 900 Full range error messages 110 Single error message 110 222 A specific range of error messages 110 222 220 A specific range of error messages and a single error message separated by a comma 109 GW INSTEK PPH 1503 User Manual Example STATus QUEue DISable 110 222 The error messages in the range of 110 to 222 will not appear in the error queue Command STATus QUEue DISable Function Reads the disabled messages Example STATus QUEue DISable Returns the disabled messages Command STATus QUEue CLEar Function Empty all the messages from the error queue Example STATus QUEue CLEar Empty all the messages from the error queue System Commands Command SYSTem VERSion Function Query the SCPI version Example SYSTem VERS
18. the DHCP server The corresponding parameters will be shown in the parameter area Use the arrow keys to view the settings When an IP address is being assigned a circular scanning icon will appear H Press the Menu key to exit and return to the main menu ec 73 GW INSTEK PPH 1503 User Manual Auto IP Follow steps A F in the previous section Manu IP above G Press the Enter key and select Auto IP The device will automatically obtain an IP address and subnet address mask based on the current network configuration The unit will set the IP address in the range of 169 254 0 1 to 169 254 255 254 witha subnet of 255 255 0 0 The parameters will be displayed in the parameter area Use the arrow keys to view the parameters H Press the Menu key to exit and return to the main menu C2 PC Operation 1 Enter the IP address into Microsoft Internet Explorer IE After entering the IP address you will be shown the Welcome screen which displays the instrument information The page also provides three links Welcome Page Browser Web Control and View amp Modify Configuration network settings GWINSTEK PPH1503 High Speed Power Supply Made to Measure fray Welcome to your H in Web Enabled PPH 1503 High man Speed Power Supply Information about this Web Enabled Instrument PPH 1503 00000000 PPH1503 MyHOsToot Contig Type Manual Ze 17216131170 EIEN ToPIP 172 16 131 170
19. the contents of the operation condition status register 105 GW INSTEK PPH 1503 User Manual Command STATus OPERation ENABle lt NRf gt Function Programs the operation enable status register Description lt NRf gt 8 CL Current enable bit 16 CLT Current limit tripped enable bit 64 PSS Power supply shutdown enable bit Example STATus OPERation ENABle 64 Enable the the power supply shutdown bit Command STATus OPERation ENABle Function Read the operation enable status register Example STATus OPERation ENABle Returns the contents of the operation enable status register Command STATus MEASurement EVENt Function Reads the measurement event status register Example STATus MEASurement Returns the contents of the measurement event status register Command STATus MEASurement ENABle lt NRf gt Function Program the measurement enable status register 106 GW INSTEK REMOTE CONTROL Description lt NRf gt 8 ROF reading overflow enable bit 16 PTT pulse trigger timeout enable bit 32 RAV Reading available enable bit 512 Buffer full enable bit Example STATus MEASurement ENABle 8 Enables the ROF bit Command STATus MEASurement ENABle Function Read the measurement enable status register Example STATus MEASurement ENABle Returns the contents of the measurement enable status register Command STATus MEASurement CONDition Fu
20. 1026 S0CKET 00 22 24 69 11 80 vo 04 07 31 12 Use the navigation bar on the left to access your PPH 1 503 High Speed Power Supply and related information GWINSEK Technologies Inc 2011 74 GW INSTEK REMOTE CONTROL 2 Click on Browser Web Control to execute commands through the browser as shown below GUWINSTEK Fr EE Made to Measure a a n Ea SCPI Response He 3 Press the View amp Modify Configuration icon to enter the Modify Config menu as shown below H1503 High Speed Powe bh Current Configuration of ima PPH 1503 High Speed Power Supply m m parameter A _ I o C 4 Click Modify Config to enter the network configuration setting menu as shown below Use the mouse to click on Save and Restart to change the remote settings for the PPH 1503 C F Configuring your PPH 1503 High Speed Power Supply 75 GW INSTEK PPH 1503 User Manual A Click Undo Edits to cancel all the edited settings Note Click Factory Defaults to restore to the factory default settings e Send a remote command to exit from Exiting from remote control mode from the PC or ie conme long press the unlock key on the ode front panel to exit from the remote control mode The RMT icon in the status bar will become greyed out when you exit from remote control mode e The LOCK icon will be greyed out when the pa
21. Example SENSe LINTegration TimeOUT Returns the timeout time Command SENSe 1 LINTegration SEARch lt b gt Function Turns the long integration pulse measurement search function on or off Description lt b gt 0 OFF Disable 1 ON Enable Example SENSe LINTegration SEARch ON Turns the search function on Command SENSe 1 LINTegration SEARch Function Queries the long integration search function state Example SENSe LINTegration SEARch Returns the long integration search function state Command SENSe 1 LINTegration FAST lt b gt Function Enable or disable the long intergration fast measurement mode Description lt b gt 0 OFF Disable 1 ON Enable 104 GW INSTEK REMOTE CONTROL Example SENSe LINTegration FAST ON Enables the long integration fast measurement mode Command SENSe 1 LINTegration FAST Function Query the state of the long integration fast measurement mode Example SENSe LINTegration FAST Returns the state of the long integration fast measurement mode Status Commands Command STATus PRESet Function Resets the unit to the default settings Example STATus PRESet Command STATus OPERation EVENt Function Read the operation event register Example STATus OPERation Reads the operation event register Command STATus OPERation CONDition Function Read the operation condition status register Example STATus OPERation CONDition Returns
22. N interface a number of settings must be turned on IP Mode The IP address can be configured using either DHCP Auto IP or Manual IP Using DHCP to get an IP address automatically assigned The system will use AUTO IP to obtain an automatically generated IP address to avoid IP address conflicts Manu IP A Press Menu to enter the main menu ep B Use the up and down arrow keys to select C Press Enter to enter the Interface menu D Use the up and down arrow key to Z select LAN E Press Enter to enter the LAN menu F Use the up and down arrow keys to select G Press Enter to select Manu IP H Use the up and down arrow key to select the appropriate parameters I Press Enter and then configure each of the parameters GW INSTEK REMOTE CONTROL J Press Enter to confirm each of the configurations K Press the Menu key to exit and return to the main menu Parameter Settings IP Address IP address range 1 0 0 0 to 223 255 255 255 excluding 127 nnn nnn nnn Subnet Mask Subnet Mask Range 1 0 0 0 to 255 255 255 255 Gateway Gateway range 1 0 0 0 to 223 255 255 255 excluding 127 nnn nnn nnn DNS Servers DNS Server range 1 0 0 0 to 223 255 255 255 excluding 127 nnn nnn nnn DHCP Follow steps A F in the previous section Manun IP above G Press Enter to select DHCP The unit ne will be assigned an IP address subnet mask the default gateway and other network parameters from
23. OLTage LEVel IM Mediate AM PLitude lt n gt Page 94 SOURce VOLTage LEVel IM Mediate AMPLitude Page 94 81 GW INSTEK PPH 1503 User Manual Readback Commands SENSe 1 FUNCtion lt name gt SENSe 1 FUNCtion SENSe 1 NPLCycles lt n gt SENSe 1 NPLCycles SENSe 1 AVERage lt NRf gt SENSe 1 AVERage SENSe 1 CURRent DC RANGe UPPer lt n gt SENSe 1 CURRent DC RANGe UPPer SENSe 1 CURRent DC RANGe AUTO lt b gt SENSe 1 CURRent DC RANGe AUTO SENSe 1 PCURrent AVERage lt NRf gt SENSe 1 PCURrent AVERage SENSe 1 PCURrent MODE lt name gt SENSe 1 PCURrent MODE SENSe 1 PCURrent TIME AUTO SENSe 1 PCURrent TIME HIGH lt NRf gt SENSe 1 PCURrent TIME HIGH SENSe 1 PCURrent TIME LOW lt NRf gt SENSe 1 PCURrent TIME LOW SENSe 1 PCURrent TIME AVERage lt NRf gt SENSe 1 PCURrent TIME AVERage SENSe 1 PCURrent SYNChronize STATe lt b gt SENSe 1 PCURrent SY NChronize STATe SENSe 1 PCURrent SY NChronize DELay lt NRf gt SENSe 1 PCURrent SYNChronize DELay SENSe 1 PCURrent SYNChronize TLEVel lt NRf gt SENSe 1 PCURrent SY NChronize TLEVel 82 Page 95 Page 95 Page 95 Page 95 Page 96 Page 96 Page 96 Page 96 Page 97 Page 97 Page 97 Page 98 Page 98 Page 98 Page 98 Page 99 Page 99 Page 99 Page 99 Page 100 Page 100 Page 100 Page 101 Page 101 Page 101 Page 101 Page 102 GW INSTEK REMOTE CONTROL SENSe 1 LINTegration TIME
24. OTE CONTROL Source Commands Command SOURce CURRent LIMit VALue lt NRf gt Description Sets the current level NRf 0 0000 5 0000 Example SOURce CURRent 1 0005 Sets the current level to 1 0005A Command SOURce CURRent LIMit VALue Description Queries the current limit level Example SOURce CURRent Returns the current limit level Command SOURce CURRent LIMit TYPE lt name gt Function Sets the current limit mode Description lt name gt LIMit General limiting mode TRIP Output shutdown mode LIMRELAY LIMITRELAY General limiting mode and external relay output control mode TRIPRELAY Ouput shutdown mode and external relay output control mode Example SOURce CURRent TYPE LIMITRELAY Sets the current limit mode to LIMITRELAY 93 GW INSTEK PPH 1503 User Manual Command SOURce CURRent LIMit TYPE Function Queries the current limiting mode Example SOURce CURRent TYPE Returns the current limiting mode Command SOURce CURRent LIMit STATe Function Queries the current limit state Returns 0 if the current limit has not been reached returns 1 if the current limit has been reached Example SOURce CURRent STATe Returns the current limit state Command SOURce VOLTage LEVel MMediate AMP Litude lt NRf gt Function Sets the output voltage amplitude Description lt NRf gt 0 000 15 000 Example SOURce VOLTage 5 321 Sets the output voltage
25. Programmable High Precision DC Power Supply PPH 1503 User Manual GW INSTEK PART NO 82PH 15030Eo1 ms 1SO 9001 CERTIFIED MANUFACTURER GW INSTEK Copyright Statement This manual contains proprietary information which is protected by copyright All rights are reserved No part of this manual may be photocopied reproduced or translated to another language without prior written consent of Good Will company The information in this manual was correct at the time of printing However Good Will continues to improve products and reserves the rights to change specification equipment and maintenance procedures at any time without notice Good Will Instrument Co Ltd No 7 1 Jhongsing Rd Tucheng Dist New Taipei City 236 Taiwan GW INSTEK TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS siccssosiwntsnsienrsssssacersssobexoanesoosiancaser 5 OVERVIEW witsiconsaceiierdinccdansintaderedeetersansonmenatinmnidandiags 11 VREVOO UGE ON aisanana a 11 Key FEALUEES riasso oseatioetinnetes 13 Operating Principals 15 Front Panel arcssoiueensrecerorneriiar iaa 17 Rear Panelen risien evere ini iess 23 Constant Voltage Constant Current Crossover CharacteriStiCS ases rrsieseiiner ioiii eikit 25 GETTING STARTED siirre iaae ea a e aE 27 Start U Disinn edesdvatulees Welsdisslvelahieeisedealiadess 27 DVM and Load Connection ccseseceeeeneees 28 Turning the Output On Off 29 BASIC OPERATION wistssicsxtssenninacedscusesat
26. Response Time FETCh Returns the last readback value Maximum 16ms Example Command Function Response Time FETCh Returns the last readback value FETCh ARRay Returns the last array readback values Maxium 16ms Example Command Function Response time FETCh ARRay Returns the last array readback values READ Triggers a read operation and returns the read values Maximum 32ms Example Command Function Response time READ Returns the read values READ ARRay Triggers a new array Returns the read array values Max 32ms Example 86 READ ARRay Triggers a new array Returns the read array values GW INSTEK REMOTE CONTROL Command MEASure lt function gt Function Performs a READ query on the specified measurement function Description lt function gt CURRent DC Measures the current VOLTage DC Measures the voltage PCURrent Measures the pulse current DVMeter Measures the DVM input LINTegration Long integration current measurement For pulse current and long integration current measurement if there is no pulse test for the timeout time Response time Maximum 32ms Example MEASure CURRent Sets pulse current as the measurement type and reads back the pulse current value Command MEASure ARRay lt function gt Function Performs a READ ARRay query on the specified measure
27. Tem POSetup Returns the power on configuration Command SYSTem COMMunicate LAN DHCP STATe lt b gt Function Sets the DHCP state on or off Description lt b gt 0 OFF DHCP off 1 ON DHCP on Note The SYSTem COMMunicate LAN APPLy command must be executed before the DHCP settings can take effect Example SYSTem COMMunicate LAN DHCP ON Enable DHCP Command SYSTem COMMunicate _LAN DHCP STATe Function Query the DHCP status Example SYSTem COMMunicate LAN DHCP 112 Returns the DHCP state GW INSTEK REMOTE CONTROL Command Function Description SYSTem COMMunicate LAN IPADdress lt JPaddress gt Sets the IP address lt IP ASCII string within the range of 1 0 0 0 address gt to 223 255 255 255 excluding 127 nnn nnn nnn Note This commands is only applicable if for the manual IP mode The SYSTem COMMunicate LAN APPLy command needs to executed before the IP address settings can take effect Example Command Function SYSTem COMMunicate LAN IPADdress 172 131 161 152 Sets the IP address to 172 131 161 152 SYSTem COMMunicate LAN IPADdress Queries the IP address Example Command Function Description SYSTem COMMunicate LAN IPADdress Returns the IP address SYSTem COMMunicate LAN AUTOip STATe lt b gt Turn the AUTO IP function on or off lt b gt 0 OFF AUTO IP off 1 ON AUTO IP on The SYSTem COMMunicate LAN APPLy command needs to be executed
28. URCE 1 25mA RESOLUTION READBACK ACCURACY 5A range 0 2 400uA 5mA range 0 2 1uA READBACK RESOLUTION 5A range 100uA 5mA range 0 1uA CURRENT SINK CAPACITY 0 5V 2A 5 15V 2A derate 0 1A V LOAD REGULATION 0 01 1mA LINE REGULATION 0 5mA STABILITY 0 01 50uA DVM INPUT VOLTAGE RANGE 0 20VDC INPUT IMPEDANCE 10 MAXIMUM INPUT VOLTAGE 3V 22V READING ACCURACY 0 05 3mV READING RESOLUTION ImV PULSE CURRENT TRIGGER LEVEL 5mA 5A 5mA step 134 TIME TRIGGER DELAY AVERAGE READINGS 0 100ms 10us steps 1 100 GW INSTEK APPENDIX LONG INTEGRATION PULSE TIMEOUT LONG INTEGRATION MEASUREMENT TIME LONG INTEGRATION TRIGGER MODE 1S 63S 850ms 60Hz 840ms 50Hz 60s or AUTO time 16 7ms steps 60Hz 20ms steps 50Hz Rising Falling Neither OVP OVP RANGE OFF ON 0 15 2V RESOLUTION 10mV ACCURACY 50mV Others PROGRAMMING IEEE 488 2 SCPI USER_DEFINABLE POWER_UP 5 sets STATES REAR PANEL CONNECTOR 8Pin output 4 sense 2 DVM 2 TEMPERATURE COEFFICIENT 0 1 specification C POWER CONSUMPTION 150VA REMOTE LOCATION CONNECTOR USB GPIB LAN RELAY CONTROL CONNECTOR 150mA 15V 5Voutput 100mA Insulation Chassis and Terminal 20MQ or above DC 500V Chassis and AC cord 30MQ or above DC 500V Operation Indoor use Altitude lt 2000m Environment STORAGE Environment INPUT POWER Accessories Dimensions Weight Remarks Ambient temperature 0 40 C Relative humidity lt 80 I
29. User Manual System SETTINGS System Information Description The System Information menu can be used to view the system information or to perform system operations such as set the buzzer function backlight display brightness or set to the factory conditions System System Version View the system software version Information Items Serial Number View the machine serial number Calibration Unit Calibration menu Factory use only Utility System setting items Buzzer setttings backlight brightness settings and factory restore Operation Press the Menu key and select System Information Press the Enter key to enter the System Information menu GW INSTEK SYSTEM SETTINGS Utilty Settings Description There are two utility settings buzzer settings and backlight brightness settings Setting Beep Sets the when the buzzer is turn on Information BackLight Adjust the LCD brightness Buzzer Operation In the Utility menu use the up and down arrows to select Beep Press Enter and then set the buzzer state to on or off When the buzzer is GYD set to on Beep On will be displayed ey BEEP Press the Menu key to exit and return to the main interface The buzzer status will be displayed on the LCD Backlight In the Utility menu use the up and rap Brightness down arrow keys to select BackLight CD Adjustment Press Enter to toggle the backlight brightness level The brightness level e
30. ascapussncsaasaswncanetecasn 31 Basic Power Supply Functions osses 31 BANA ES 41 Pulse Current Measurement seccccreereees 43 LONG INtegration eee eceeeceeeee eee eeeee nn eeeennes 49 Current Sink PUMCHON siccctscecciwenscicaniszescinsenesces 54 External Relay Control s sssssssesesscoseeeoees 56 Save Recall sect icusauisavrabedibermncdgexsinid ai aA EaR 59 SAVE Setting Sonerii setie ainiai ee 59 Recall SSE OS csisp espns sic ieniteenepxralrcusseetaesedathen 60 Restore Factory Default Settings 63 GW INSTEK PPH 1503 User Manual SYSTEM Settings sirensis sore aaen E cteedb saves a eE 64 System Information cuneercisriventsceerorptaniacmimevens 64 Utilty Setting S snosio seesand 65 REMOTE CONTROL isco oot itek ss Balen sisctcteaiceciades 67 Remote Control i5ic a0tshespateies ahacceds mance tnantadacs 67 Command SYNTAX eseese eenei ore 76 Command LiStrsessissreseiiansisipi aiee 80 Command Details wxcecdaciecinseteneacecaee totes 85 SCPI Status Registers SCP eee 121 ErrOr S scvssanseeeesepoienes thveeter eUn E ROEE 129 APPENDIX ieaie EE EER EE 133 Replacing the Fuse ssesesesierreeeresrerrren 133 Specifications cars en hoarse enw encoeeeetrneente 134 Optional Accessories cccsneicsssevascisdsarseradannsenas 136 Declaration of Conformity eseese 137 GW INSTEK SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation a
31. ation from the power supply output flows from the positive terminal out to the negative terminal The amount of current sunk is not controlled from the power supply Connection Connect the positive terminal of the external power supply to the positive terminal on the high speed power supply Connect the negative terminal of the external power supply to the negative terminal on the high speed power supply PPH 1503 R Ve I sink fk 3 0V l 4 2V GW INSTEK BASIC OPERATION Conditions To protect the high speed power supply when operating as a current sink the following two conditions must be met 1 Ensure that the voltage of the external power supply is greater than the output of the high speed power supply voltage by 0 3V 2 5V The voltage difference depends on the high speed power supply voltage output and the load conditions 2 To ensure that the high speed power supply output voltage is within the range of 0 5V the current draw cannot exceed 2A For output voltgages between 5V 15V the current draw must be reduced by 0 1A for each 1V increase over 5V See the formula in the table below for the details High speed Power Supply Maximum Dissipation Output Voltage Current 0 5V 2A 5V 15V 2A 0 1A V output voltage 5V 55 GW INSTEK PPH 1503 User Manual External Relay Control Function When the Relay control feature is turned on it is Descriptio
32. ay In CC mode the current level is maintained and the voltage level is limited to less than the set voltage level to limit the output power from an overload When the current drops below the set current level the unit will revert back to CV mode 25 GW INSTEK PPH 1503 User Manual Diagram Vout Vmax Joonccwcccccccccccece Constant Voltage Constant Current lout Imax 26 GW INSTEK GETTING STARTED G ETTING STARTED This chapter describes the start up procedures and the preparation that is necessary before operating the power supply Start Up Checking the AC Before the power is turned on LINE FUSE Voltage confirm that the input power ete iy supply meets the following LINE RATING conditions beret 90 264V AC 50Hz 60Hz 150VA MAX Connecting the The fuse is a 2A slow blow fuse AC power cord Confirm that the fuse is of the correct type and rating before connecting the power cord Turning the Press the power button The POWER power on LCD will display the line 7 oer frequency of the AC power RS supply Turning the To turn the power off press the sin ff i Nai power o power button again 7 ea 27 GW INSTEK PPH 1503 User Manual DVM and Load Connection Recommended Model Specification Usage Cables GTL 117 10A Front panel DVM input GTL 204A 10A Front panel Source terminal GTL 203A 3A Front panel Sense terminal Front panel Use the GTL 204A cables
33. before the AUTO IP function setting can take effect Example SYSTem COMMunicate LAN AUTOip ON Turns the AUTO IP function on 113 GW INSTEK PPH 1503 User Manual Command SYSTem COMMunicate LAN AUTOip STATe Function Queries the status of the AUTO IP function Example SYSTem COMMunicate LAN AUTOip Returns the status of the AUTO IP function Command SYSTem COMMunicate LAN SMASk lt mask gt Function Sets the subnet mask Description lt mask gt ASCII string within the range of 1 0 0 0 to 255 255 255 255 The SYSTem COMMunicate LAN APPLy command needs to be executed before the subnet mask setting can take effect Example SYSTem COMM LAN SMAS 255 255 255 0 Sets the subnet mask to 255 255 255 0 Command SYSTem COMMunicate LAN SMASk Function Query the subnet mask Example SYSTem COMMunicate LAN SMASk Returns the subnet mask Command SYSTem COMMunicate LAN GATEway lt JPaddress gt Function Sets the gateway IP address Description lt IP address gt ASCII string within the range of 114 1 0 0 0 to 223 255 255 255 excluding 127 nnn nnn nnn GW INSTEK REMOTE CONTROL The SYSTem COMMunicate LAN APPLy command needs to be executed before the gateway IP address setting can take effect Example SYSTem COMMunicate LAN GATEway 172 16 3 1 Sets the gateway IP to 172 16 3 1 Command SYSTem COMMunicate LAN GATEway Function Queries the gateway IP Example SYSTem COMM
34. ch Supply mode power supply module DC Down To reduce the input voltage to 24VDC slightly Conversion higher than the settable voltage the U201 Buck IC is used in conjunction with two power MOSFETS Q201 Q202 and an inductor L202 GW INSTEK PPH 1503 User Manual Linear Output The Q306 Q307 dividers reduce the heat on a Circuit Linear single component The U303 U301 U403 U401 Regulator and U402 components form a control circuit to achieve accurate output Auxillary Power The independent auxillary DC power supply is Supply achieved with the U101 T101 and Q102 Q105 components 16 GW INSTEK OVERVIEW Front Panel Numberpad and secondary function keys DVM inputs LCD display Arrow keys GWINSTEK PPH 1503 rmm ah rn v CD C EA Ga G GC 5 a ne gt Ee amp oy Bye Co N C Menu Coote D owen Rear Compa o SENSE SOURCE SOURCE SENSE POWER T R Front panel output Power button terminals Function keys Display Voltmeter Displays the output voltage with up to 5 digits of Indicators resolution The default units are Volts V Ammeter Displays the output current with up to 5 digits of Indicator resolution depending on the current range 5A 5mA The current range is selectable between A and mA 7 GW INSTEK PPH 1503 User Manual Setting Display
35. chapter on page 27 to for start up instructions and how to setup the appropriate operation environment Introduction Overview The PPH 1503 is a portable high speed programmable DC power supply with flexible operating configurations In addition to the basic power supply functionality it is also able to measure pulse current and the average current over long periods of time The PPH 1503 is designed for testing the power consumption of battery powered wireless communication devices e g cell phones Such devices often have large load variations within a short time span The high precision power supply has excellent voltage stability during pulsed loads and is capable of simultaneously measuring the pulse current even for very short pulses In addition the power supply is able to sink current allowing it to simulate the characterics of a discharged rechargeable battery for testing chargers and charge control circuits 11 GW INSTEK PPH 1503 User Manual Basic Power Supply Function The PPH 1503 works as a conventional power supply with automatic CC CV crossover Parameters such as the output voltage current read back refresh rate data sampling period power on status OVP and current range can be configured using the control panel The voltage and current settings and the actual voltage current are displayed on the LCD For details see page 31 Pulse Current The PPH 1503 can measure the change in
36. ds have the following convential symbols These symbols are not commands but are used to describe the command parameters 1 Curly Brackets Curly Bracket enclose command string parameters for example OFF ON 2 Verical Bars 77 GW INSTEK PPH 1503 User Manual Vertical bars are used to separate one or more optional parameters Only one command can be selected With the following two parameters ON OFF only ON or OFF can be selected 3 Square Brackets The contents inside square brackets represent keywords or parameters that can be omitted when executing a command For example For the commands OUTPut STATe ON OFF STATe can be omitted 4 Angle Brackets The parameters in angle brackets must be substituted with a valid parameter For example For the command DISPlay CONTrast lt brightness gt lt brightness gt must be use a numerical value instead such as DISPlay CONTrast 1 Parameter Types The commands have a number of different parameter categories How the parameters are set depend on the parameter categories 1 Boolean Commands parameter that have to states OFF and ON for example DISPlay FOCUs ON OFF ON will turn on the focus display function while OFF will turn it off 2 Consectutive Integers 78 GW INSTEK REMOTE CONTROL Parameters that use consecutive integers for example For the command DISPlay CONTrast lt brightness gt lt brigh
37. e must first be detected The trigger level refers to minimum pulse level required for a pulse to be detected For example if the trigger level is set to 2A pulses that are lt 2A will be detected Pulses lt 2A will be ignored The trigger level range is 0 5A This setting only applies to long current integration measurements Recalls pre saved setups A total of 6 setups can be recalled RST SAVO SAV4 See page 60 for details 51 GW INSTEK PPH 1503 User Manual Parameter IntTime Use the arrow keys to select MERE then Settings press Enter Use the arrow keys to select a time setting If See was selected press Enter and then enter the long current integration time Press Enter to save the setting and return to the long integration measurement menu If EE was selected press Enter to confirm and to go back to the long integration measurement menu For manually set integration times if the set time is not an integer multiple of the integration cycle time the system will automatically round down to closest maximum integer multiple that can be set The time range is 850mS to 60S 50Hz and 840mS to 60S 60Hz The default unit is seconds S TrigEdge Use the arrow keys to select RARA and then press Enter Use the arrow keys to select the type of trigger and press Enter to confirm the trigger settings and to return to the long integration measurement menu Timeout Use the arrow keys to select imeem and then pres
38. e standard event status register Example OPC Command OPC Function Will return 1 to the output queue when all pending operations have been completed Example OPC After the last command is executed will return a 1 to the output queue 128 GW INSTEK REMOTE CONTROL Errors Error Message Errors are stored in a first in first out FIFO order The first error message that is returned is the first error message that was stored When an error is read it is also cleared from the queue elf there are more than 10 errors produced the last error in the queue is replaced with Que overflow Unless the error queue is cleared no more errors can be written to the error queue If there are no errors in the error queue the instrument will return No error eTo clear the error queue you can use the SYSTem CLEar command or cycle the power When you read a message from the error queue that message will be cleared from the error queue Using the RST command to reset the instrument does not clear the error queue Remote control instructions can be used to clear the error queue See the instructions listed in the previous chapter for details Command Errors 440 Query unterminated after indefinite 430 Response 420 Query deadlocked 410 Query unterminated 363 Query interrupted 350 Input buffer overrun 330 Queue overflow 314 Self test failed 315 Save recall memory lost 260 Conf
39. egister as long as the bit 6 MSS has been cleared Using the OPC query to place a signal in the output buffer In general it is best to use the Operation Complete Bit bit 0 in the standard event register to check to see if an operation command has completed After executing the OPC command the OPC bit will be set to 1 If a command or query is placed in the output buffer immediately before the OPC command is sent the Operation Complete Bit can be used to determine when the information can be used However if too many commands queries are 124 GW INSTEK REMOTE CONTROL executed prior to the execution of the OPC commana the output buffer could become saturated and the unit will stop taking readings Standard Event Register The Standard Event Register reports the following types or events Power on has been detected comman syntax errors command execution errors self test and execution errs query errors or if the OPC command is executed Any one or more of these events will set the standard event summary bit in the status byte register To set a mask for the enable register a binary weighted decimal number must be written using the ESE command Bit Definition for the Standared Event Register Bit number Decimal value Definition The OPC command will set this bit when all overlapping 0 Operation 1 P operations have completed C lete Bit EREE including the OPC command itself 1 Not used 2 Not used
40. egree 2 Pollution refers to addition of foreign matter solid liquid or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity e Pollution degree 1 No pollution or only dry non conductive pollution occurs The pollution has no influence e Pollution degree 2 Normally only non conductive pollution occurs Occasionally however a temporary conductivity caused by condensation must be expected e Pollution degree 3 Conductive pollution occurs or dry non conductive pollution occurs which becomes conductive due to condensation which is expected In such conditions equipment is normally protected against exposure to direct sunlight precipitation and full wind pressure but neither temperature nor humidity is controlled GW INSTEK SAFETY INSTRUCTIONS Storage e Location Indoor environment Relative Humidity lt 70 e Temperature 10 C to 70 C GW INSTEK PPH 1503 User Manual Power cord for the United Kingdom When using the power supply in the United Kingdom make sure the power cord meets the following safety instructions NOTE This lead appliance must only be wired by competent persons Aane THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are coloured in accordance with the following code Green Yellow Earth Of Blue Neutral Q an Brown Live Phase As the colours of the wires in main leads may not correspond wi
41. evert back to the OFF status Automatic Any of the following actions will cause the output Output Shut to be automatically shut down Down e If any of the setups are recalled e OVP OTP protection is tripped e OCP protection is tripped 30 GW INSTEK BASIC OPERATION Basic OPERATION This chapter describes how to set various functions Basic Power Supply Functions Description The PPH 1503 operates as a generic power supply with the ability to display different current ranges The output can be toggled between the front and rear outputs using the Rear key When the Rear key is lit it indicates that the rear panel output is active and that the front panel output is off Parameter IntRate The data sampling period derived Description from the number of power line cycles The setting range is 0 1PLC to 10 00PLC power line cycles 1PLC 16 7ms 60Hz 20ms 50Hz PLC stands for power line cycles 31 GW INSTEK PPH 1503 User Manual AverRead 1 2 Readback refresh rate This will display the average number count The settings for parameters 1 2 are shared the remaining parameters 3 4 are set in their corresponding menus 1 Power Supply functions 2 DWM function 3 Pulse current measurement 4 Long integration current measurement CurrRange The current range selection has three settings 5A 5mA and Auto The 5mA range only accepts a current setting 1A or less If the 5mA range is selec
42. fine adjustment of the current voltage settings The Enter key is used to confirm the selection of any settings or parameters and to exit after a setting is complete 21 GW INSTEK PPH 1503 User Manual Power Button ee Turns the power on or off pe On Off m Terminals Output SONGES 6O JROER Output source terminals Terminals O O SOURCE Q Q Voltage SENSE SPISER Sense terminals Feedback Terminals Q SENSE Voltmeter DYM Digital voltmeter input Terminals terminals DVM Q MAXL MAX 22 GW INSTEK OVERVIEW Rear Panel AC power socket Rear panel outputs and External and fuse DVM inputs control port Sf 7 ISOLATION FROM EARTH Sy eA CATE GONE A S Je ke j GPIB igi i Heat sink fan Lan port GPIB port USB port Terminals AC input The AC input socket and 90 264V AC 50Hz 60Hz line fuse Fuse 2A slow blow type See page 133 for details USB port USB device port for remote control See page 67 for details GPIB port GPIB slave port for remote control Abides to IEEE488 1 SCPI aon protocol See page 69 for details LAN port Ly LAN port for remote control See oo page 72 for details LAN 23 GW INSTEK PPH 1503 User Manual Output inte
43. fines the ASCII text for display information a Description lt a gt ASCII string of block of up to 32 characters Any character over 32 will be truncated The characters are not case sensitive Used when DISPlay TEXT STATe ON is executed Example DISPlay TEXT DATA txt The ASCII text is set to txt Command DISPlay WINDow 1 TEXT DATA Function Returns the text message that was set Example DISPlay TEXT DATA Returns the text message that was set Command DISPlay CONTrast lt NRf gt Function Sets backlight display brightness Description lt NRf gt 1 Weak 2 Medium 3 Strong 89 GW INSTEK PPH 1503 User Manual Example DISPlay CONTrast 3 Sets the backlight to the brightest Measurement Commands Command FORMat DATA lt type gt Function Sets the data format Description lt type gt ASCii ASCII format SREal IEEE754 single precision format DREal EEE754 double precision format Example FORMat DATA SREal Sets the format to IEEE754 double precision format Command FORMat DATA Function Queries the data format Example FORMat DATA Returns the data format Command FORMat BORDer lt name gt Function Sets the byte order Description name NORMal normal binary byte order SWAPped reverse binary byte order Example FORMat BORDer NORMal Set the data format to the Normal binary byte order Command FORMat BORDer 90 GW INSTEK REMOTE CONTROL
44. gister groups all have event registers The event registers are read only registers that reflect the status of the unit Individual bits in the event registers are latched set when a corresponding event occurs and will remain latched even if the corresponding event changes as long as the event bit is still set The register query ESR or the command CLS will automatically clear any set bits in the event registers The reset command RST will not clear the bits in the event register Queries for the event registers will return a binary weighted decimal value that represents the state of all the bits in an event register Enable Registers The enable registers define which bits in the corresponding event register can be latched set The enable register can be read and written to Any queries for the enable register will not clear the value in the register The CLS command will not clear the enable register but will clear the events in the event register To allow the individual bits in the event registers to be set the corresponding bits in the enable registers must be set where each bit is represented by a binary number Status Byte Register The status byte register reports the status of the other status registers The message available bit bit 4 will indicate when there is a message in the output buffer Clearing an event register will clear the corresponding bit in the status byte condition register Reading all the data in the
45. h measurement mode is active with an orange line under the active mode for HIGH LOW or AVER GW INSTEK BASIC OPERATION Long integration Description The long current integration measurement function measures the mean average current over a single or multiple current pulses The long integration time period must be a full period or integer multiples of a complete period of the measured pulse current The Long integration measurement calculates the whole integration time as an integer number of integration cycles An integration cycle is the line cycle period plus the data processing time For example if the line frequency is 60Hz then a single integration cycle is 16 7mS if the frequency is 50Hz then a single integration cycle is must be 20mS Long integraton is one of the methods to extend A D circuits to exceed beyond their maximum integration time The A D conversion circuits can measure a pulse of up to 833 mS Long integration measurement extends the A D integration time to achieve a longer pulse measurement This can extend the measurement time for long integration to a maximum of 60S JN Note When this feature is used the current range is set to 5A 49 GW INSTEK PPH 1503 User Manual Parameter IntTime e Integration time Desorption e The integration time can be set manually or automatically by the operator For manual settings the integration time can be set to a maximum of 60 second
46. he current range using the up and down arrow keys Press Enter to save 36 GW INSTEK BASIC OPERATION LimMode Use the arrow keys to select MENEE and press Enter to go to the Current Lim menu Select the Current Lim mode using the up and down arrow keys Press Enter to save See page 56 for further details PowOnSetup Use the arrow keys to select and press Enter to go to the Power On Setup menu Use the up and down arrow keys to select the power on setting Press Enter to save See page 60 for further details RelayControl Use the arrow keys to select and press Enter Use the up and down arrow keys to set the type of relay control Press Enter to save See page 56 for further details O V P Use the arrow keys to select BA and press Enter Input the OVP setting and press Enter to save RecallSetup Use the arrow keys to select and press Enter to go to the Recall Setup menu Use the arrow keys select a stored setup Press Enter to confirm the recall See page 60 for further details 37 GW INSTEK PPH 1503 User Manual N Note 1 The Clear key can be used to clear numbers that have already been entered 2 Voltage and current parameter values use stepped input values All other numerical parameters can use the number pad to enter parameter values Operation REAR After setting all the parameters the FRONT Rear key can be used to set the output to the f
47. iguration memory lost 241 Expression error 129 GW INSTEK PPH 1503 User Manual 230 225 224 223 222 221 220 200 178 171 170 161 160 158 154 151 150 148 144 141 140 124 123 121 120 114 113 130 Hardware missing Data corrupt or stale Out of memory Illegal parameter value Too much data Parameter data out of range Settings conflict Parameter error Execution error Expression data not allowed Invalid expression Expression error Invalid block data Block data error String data not allowed String too long Invalid string data String data error Character data not allowed Character data too long Invalid character data Character data error Too many digits Exponent too large Invalid character in number Numeric data error Header suffix out of range Undefined header GW INSTEK REMOTE CONTROL 112 111 110 109 108 105 104 103 102 101 100 000 101 301 302 306 310 320 321 409 410 438 500 510 511 512 Program mnemonic too long Header separator error Command header error Missing parameter Parameter not allowed GET not allowed Data type error Invalid separator Syntax error Invalid character Command error No error Operation complete Reading overflow Pulse trigger detection timeout Reading available Buffer full Current limit event Current limit tripped event OTP Error OVP Error Date of calibration n
48. in interface GW INSTEK SAVE RECALL Method 2 Press the Menu key Use the up down arrow keys to select Press Enter to enter the Recall Setup Enter interface Use the left and right arrow keys to QA select which setting to recall vg Press the Enter key to confirm the en selection Power On In the main menu the interface parameter settings Settings area shows Meyy jaleisueye Settings There are 11 KOMO settings to choose from Rst SAVO0 SAV4 and SAV5 SAV9 The main difference between SAVO SAV4 and SAV5 SAV9 is that SAVO SAV4 are user saved settings and don t contain the Power On Off state TEET is always off while the SAV5 SAV9 contain the Power On Off state The SAV5 SAV9 settings are synced from corresponding SAVO SAV4 settings and are identical but for the the Power On Off state The Power On Off states simply indicate if the can be on or off The relationship between SAVO SAV4 and SAV5 SAV9 is as follows SAVO gt SAV5 SAV1 SAV6 61 GW INSTEK PPH 1503 User Manual SAV2 gt SAV7 SAV3 gt SAV8 SAV4 gt SAVI 62 GW INSTEK SAVE RECALL Restore Factory Default Settings Description The system can retrieve the factory default settings by loading the Rst setting This setting cannot be modified Operation There are two methods to retrieve the factory default settings Please see the Recall Settings sections for instructions page 60 63 GW INSTEK PPH 1503
49. ion Returns the SCPI version Command SYSTem ERRor Function Read and clear the last error and from the error queue Example SYSTem ERRor Read and clear the last error and from the error queue 110 GW INSTEK REMOTE CONTROL Command SYSTem CLEar Function Clear the error messages from the error queue Example SYSTem CLEar Clears the error queue Command SYSTem LFRequnecy Function Queries the power line frequency Example SYSTem LFRequnecy Returns the power line frequency Command SYSTem POSetup lt name gt Function Set the power on configuration Description lt name gt RST Machine default settings SAVO User settings stored in memory location 0 output off SAV1 User settings stored in memory location 1 output off SAV2 User settings stored in memory location 2 output off SAV3 User settings stored in memory location 3 output off SAV4 User settings stored in memory location 4 output off SAV5 User settings stored in memory location 5 SAV6 User settings stored in memory location 6 SAV7 User settings stored in memory location 7 111 GW INSTEK PPH 1503 User Manual SAVS8 User settings stored in memory location 8 SAV9 User settings stored in memory location 9 Example SYSTem POSetup SAVO Set the power on configuration to SAVO Command SYSTem POSetup Function Query the power on configuration Example SYS
50. m after the trigger delay time The trigger delay setting range is 0 0 10000S with a resolution of 0 000015 The setting units are in seconds Average Reading Count Reads back the average number of displayed values This parameter is only applicable for pulse current measurement The average number range can set from 1 100 with a resolution of 1 45 GW INSTEK PPH 1503 User Manual TrigLeve 3 Trigger Level e To avoid false pulse measurements the trigger level can be set close to the current amplitude All noise and transient currents that are below the trigger level will be ignored The trigger level has a setting range of 0 to 5A with a resolution of 5mA The setting unit for the trigger level is in amps A This setting is only valid for pulse measurements RecallSetup Recalls stored settings A total of 6 settngs can be recalled RST SAVO to SAV4 Parameter IntTime Use the arrow keys to select EEEE Settings press Enter and then use the arrow keys to select the type of integration time that you want to set Hight Time Low Time Aver Time Press Enter again to set the integration time After inputing the integration time press Enter to return to the pulse current measurement menu If was selected press Enter to return to the pulse current measurement menu Example High Time 33uS B gt GW INSTEK BASIC OPERATION TrigDelay AverRead 3 TrigLeve 3 RecallSetup
51. ment Low measurement is triggered by the falling edge of the pulse current Anas Pulse current measurement is only valid up to 5A i e Integration Time Parameter IntTime Description e The integration measurement time can be set to automatic or to one of the manual settings High Time Low Time Aver Time e When the integration measurement time is set to automatic mode the system will measure the peaks and troughs of the pulse current and will automatically set an appropriate intergration time The average integration time is the time of all the accumulated peaks and troughs After the setting the integration time to automatic the setting will apply to all subsequent pulse measurements unless the automatic integration mode is applied again or the integration time is manully set The automatic GW INSTEK BASIC OPERATION TrigDelay AverRead 3 Integration time can automatically detect pulses in the 80uS to 833m5S range The manual time range setting is 33uS to 833333uS The default units are in microseconds uS The unit will automatically round down the last two digits to 00 33 or 66 micoseconds For example for a value of 65 999 it will be rounded down to 33 and 66 01 will be rounded down to 66 Trigger Delay When a pulse is detected there will be a 25us code execution delay time The trigger delay settings are used to filter out the current overshoot Measurement will begin fro
52. ment function Description lt function gt CURRent DC Measures the current VOLTage DC Measures the voltage PCURrent Measures the pulse current DVMeter Measures the DMV input LINTegration Long integration current measurement 87 GW INSTEK PPH 1503 User Manual Response time For pulse current and long integration current measurement if there is no pulse test for the timeout time Maximum 32ms Example MEASure ARRay PCURrent Sets the measurement type to pulse current array measurement and returns the read array value Display Commands Command DISPlay ENABle lt b gt Function Turn the LCD display on or off Description b 0 OFF Turns the display off 1 ON Turns the display on Example DISPlay ENABle ON Turns the LCD display on Command DISPlay ENABle Function Queries the state of the display Example DISPlay ENABle Returns the state of the display Command DISPlay WINDow 1 TEXT STATe lt b gt Function Enable or disable text message mode Description lt b gt 0 OFF Disable text message mode 1 ON Enable text message mode Example DISPlay TEXT STATe ON 88 Enables text message mode GW INSTEK REMOTE CONTROL Command DISPlay WINDow 1 TEXT STATe Function Returns the state of the text message mode Example DISPlay TEXT STATe Returns the state of the text message mode Command DISPlay WINDow 1 TEXT DATA lt a gt Function De
53. n is displayed under Backlight There are three brightness levels High Middle Low Press the Menu key to exit and return to the main interface 65 GW INSTEK PPH 1503 User Manual Restore to Factory In the Utility menu use the up and down arrow Settings keys to select In factory reset then press the Enter key to restore to the factory settings This function is only for factory use 66 GW INSTEK REMOTE CONTROL REMOTE CONTROL Remote Control USB Description The PPH 1503 can be connected via USB using the USB Communications Device CDC class Interface Rear panel USB slave port 0 LY Installing the Before connecting the unit to the USB Driver port of the PC make sure the approriate driver has been installed The driver is available from the GW Instek website When the unit has successfully connected to the PC via USB USB will be displayed in the status bar in red The front panel keys are automatically locked when the unit is in remote mode 67 GW INSTEK PPH 1503 User Manual COM port settings The following settings should be set to the following Baud rate 115200 or less Parity None Data bits 8 Stop bits 1 Data overflow control None Function Check Perform the following query IDN The unit will return the manufacturer model serial number and software version GW INSTEK PPH 1503 SN xxxxxx
54. n synced to the current limit of the power suppy The external relay control is divided into two different types a limit relay and a trip relay The limit relay is used in conjuction with CC mode When the constant current setting value is reached the relay control signal will go high and will return back to the low level when the current level goes back below the constant current setting The trigger relay is used in conjuction with CC mode When the constant current setting value is reached the relay control signal will go high and the output is disabled When the output goes back on and the current is less than the current setting value the relay control signal will back to the low level Rear Panel The rear panel control interface Control Interface has five terminals 5V SU NOOT TEND IN software upgrade OUT outputs the control signals and O00000 GND connected to the chasis ground or earth ground respectively Wiring Method A thin screwdriver or similar tool will need to be inserted into the release mechanism highlighted in orange in the figure above to open the terminals Insert an exposed wire into the terminal and release the mechanism to lock the wire into place GW INSTEK BASIC OPERATION Schematic Diagram for Relay Control Limit Relay Limit setting Current dosian ee RA T fi pa w l FT f Relay i on off
55. nction Read the measurement condition status register Example STATus MEASurement CONDition Returns the contents of the measurement condition status register Command STATus QUEStionable EVENt Function Read the questionable event status register Example STATus QUEStionable Returns the contents of the questionable event status register Command STATus QUEStionable CONDition Function Read the questionable condition status register 107 GW INSTEK PPH 1503 User Manual Example STATus QUEStionable CONDition Returns the contents of the questionable condition status register Command STATus QUEStionable ENABle lt NRf gt Function Programs the questionable enable status register Description lt NRf gt 256 CAL Calibration summary enable bit Example STATus QUEStionable ENABle 256 Sets the CAL bit Command STATus QUEStionable EN ABle Function Read the questionable enable status register Example STATus QUEStionable ENABle Returns the contents of the questionable enable status register Command STATus QUEue NEXT Function Read the next message in the error queue Example STATus QUEue Returns the next error message Command STATus QUEue ENABle lt list gt Function Specifies which error and status messages get 108 enabled for the error queue GW INSTEK REMOTE CONTROL Description lt list gt 440 900 Full range error messages 110 Single error
56. nd storage Read the following before any operation to insure your safety and to keep the instrument in the best possible condition Safety Symbols These symbols may appear in the manual or on the instrument AN Warning Identifies conditions or practices that WARNING could result in injury or loss of life A Caution Identifies conditions or practices that CAUTION could result in damage to the PSW or to other properties DANGER High Voltage Attention Refer to the Manual Protective Conductor Terminal Earth ground Terminal IF OS amp GW INSTEK PPH 1503 User Manual Do not dispose electronic equipment as unsorted A municipal waste Please use a separate collection facility or contact the supplier from which this instrument was purchased GW INSTEK SAFETY INSTRUCTIONS Safety Guidelines General e Do not place any heavy object on the unit Guaeline e Avoid severe impact or rough handling that AN leads to damaging the unit CAUTION e Do not discharge static electricity to the unit e Do not block the cooling fan opening e Do not perform measurements on circuits that are directly connected to mains power e Do not disassemble the PSW unless you are qualified Measurement categories EN 61010 1 2001 specifies the measurement categories and their requirements as follows The PPH 1503 falls under category I e Measurement category IV is for measurement performed at the source of low voltage in
57. nel lock is disabled RMT e Unplug the connection from the rear panel AN Note Hot swappable LAN devices can be directly disconnected to exit Command Syntax The commands that are used with the PPH 1503 meet IEEE488 2 and SCPI standards SCPI Commands Overview SCPI Command Format SCPI is an ASCII based command language designed for test and measurement instruments SCPI commands uses a hierarchical structure tree system and is divided into different subsystems Each subsystem 76 GW INSTEK REMOTE CONTROL is defined by a different root keyword Each command consists of a root keyword and one or more hierarchial key words separated by a colon and followed by a parameter There is always a space between the keywords and the parameters Any commands followed by a question mark are queries For Example SYSTem BEEPer STATe 0 1 OFFJON SYSTem BEEPer STATe SYSTem is the root level keyword and BEEPer and STATe are the secondary and tertiary level keywords All all levels have a separating each keyword Parameters are enclosed in y The commands SYSTem BEEPer STATe has 0 1 OFF ON as parameters The parameters are separated with a space SYSTem BEEPer STATe Indicates that the command is a query In addition some commands have multiple parameters that are usually separated by a comma For example STATus QUEue ENABle 110 222 220 Symbol Desription SCPI comman
58. new line gt character A command can also be terminated using a carriage return lt new line gt character The command path will always be reset back to the root level after a command has been terminated Return values are terminated with 0x0A Command List Measurement Instructions FETCh Page 86 FETCh ARRay Page 86 READ Page 86 READ ARRay Page 86 MEASure lt function gt Page 87 MEASure ARRay lt function gt Page 87 Display Functions DISPlay ENABle lt b gt Page 88 DISPlay ENABle Page 88 DISPlay WINDow 1 TEXT STATe lt b gt Page 88 DISPlay WINDow 1 TEXT STATe Page 89 DISPlay WINDow TEXT DATA lt a gt Page 89 80 GW INSTEK REMOTE CONTROL DISPlay WINDow 1 TEXT DATA Page 89 DISPlay CONTrast lt NRf gt Page 89 Data Format Commands FORMat DATA lt type gt Page 90 FORMat DATA Page 90 FORMat BORDer lt name gt Page 90 FORMat BORDer Page 90 Output Commands OUTPut STATe lt b gt Page 91 OUTPut STATe Page 91 OUTPut RELay lt name gt Page 91 OUTPut RELay Page 91 OUTPut OVP STATe lt b gt Page 92 OUTPut OVP STATe Page 92 OUTPut OVP lt value gt Page 92 OUTPut OVP Page 92 Source Commands SOURce CURRent LI Mit VALue lt NRf gt Page 93 SOURce CURRent LI Mit VALue Page 93 SOURce CURRent LI Mit TYPE lt name gt Page 93 SOURce CURRent LI Mit TY PE Page 94 SOURce CURRent LIMit STATe Page 94 SOURce V
59. ns to be completed before allowing other operations to be executed Example WAI Command TRG Function Sends a bus trigger Example TRG Sends a bus trigger Command SAV lt NRf gt Function Save the current setup to the selected save location Description lt NRf gt 0 Save to memory location SAVO 1 Save to memory location SAV1 2 Save to memory location SAV2 3 Save to memory location SAV3 4 Save to memory location SAV4 Example SAV 3 Save the current setup to SAV3 Command RCL lt NRf gt Function Recall the selected save setting from memory 119 GW INSTEK PPH 1503 User Manual Description lt NRf gt 0 Recall SAVO from memory 1 Recall SAV1 from memory 2 Recall SAV2 from memory 3 Recall SAV3 from memory 4 Recall SAV4 from memory Example RCL 2 Recall SAV2 120 GW INSTEK REMOTE CONTROL SCPI Status Registers SCPI The SCPI instrument configuration is controlled by the status registers The Status system records various instrument conditions into three main register groups The status byte register the standard event register group and the questionable data register group The status byte register records a high level summary of the other register groups The following diagram is the SCPI Status System diagram 121 GW INSTEK PPH 1503 User Manual Questionable Event Registers Event Condition Event Enable Register Register Register Calibration Summary I fart taro a Ba 10
60. nstallation category II Pollution degree 2 TEMPERATURE 20 C 70 C HUMIDITY lt 80 90 264VAC 50 60Hz CD 8cmUser manual x1 Quick Start manual x1 Test lead GTL 117 x 1 GTL 203A x 1 GTL 204A x 1 222 W x 86 H x 363 D mm Approx 4 2kg 1 PLC PowerLineCycle 1PLC 16 7ms for 60Hz operation 20ms for 50Hz operation Display OFF Speed includes measirement and binary data transfer out of GPIB 3 PLC 1 STABILITY Following 15 minute warm up the change in output over 8 hours under ambient temperature constant load and line operating conditions The ground ring of the probe is pressed directly against the output ground of the power supply and the tip is in contact with the output voltage pin Auto detected at power up 135 GW INSTEK PPH 1503 User Manual Optional Accessories USB Cable GTL 246 USB 2 0 A B type 136 GW INSTEK APPENDIX Declaration of Conformity We GOOD WILL INSTRUMENT CO LTD 1 No 7 1 Jhongsing Rd Tucheng City Taipei County Taiwan 2 No 69 Lu San Road Suzhou City Xin Qu Jiangsu Sheng China declare that the below mentioned product Type of Product Programmable High Precision DC Power Supply Model Number PPH 1503 are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to Electromagnetic Compatibility 2004 108 EC and Low Voltage Directive
61. onstant current operation CV CC e Output on off control e Front and Rear output control key e Digital panel control e 5 groups of save recall settings and 10 automatically generated power on settings e Digital voltage and current settings e Software calibration e Alarm buzzer e Key lock function Protection e Reverse polarity protection Features e Overvoltage and overcurrent protection OVP Trip e Overtemperature protection OTP 13 GW INSTEK PPH 1503 User Manual Interface e USB remote control e GPIB remote control e LAN remote control 14 GW INSTEK OVERVIEW Operating Principals Overview The PPH 1503 mainly consists of the follow components e AC to DC Switching power supply e DC to DC Buck converter circuit e Precision output control circuit The block diagram below shows a function description of each of the circuits The following page will show detailed decriptions of each component Block Diagram Lo aes LINEAR ON OFF SWITCH AC INPUT m gt U201 Q201 Q202 a CONTROL Ea Q309 Q310 c OUTPUT L202 Q306 Q308 U303 Q315 Q316 AA VOLTAGE ALODE V SET AND ENR _ PAMELING SWITCH POWER U301A CIRCUIT U401 U402 a A y POWER SUPPLY oon SAMPLING RESISTANCE U101 T101 ESE Does CIRCUIT R366 R366A i Q102 Q105 U430 R367 R367A Swtiching Power AC power is converted to 24VDC by the swit
62. ot set Gain aperture correction error Calibration data invalid Reading buffer data lost GPIB address lost Power on state lost 131 GW INSTEK PPH 1503 User Manual 514 515 522 610 900 132 DC Calibration data lost Calibration dates lost GPIB communication data lost Questionable calibration Internal system error GW INSTEK APPENDIX A ppen DIX Replacing the Fuse Steps Remove the power cord and then take out the box using a small screw driver The fuse is stored in the housing Rating e T2 0A 250V 133 GW INSTEK PPH 1503 User Manual Specifications The specifications apply under the following conditions The PPH 1503 is powered on for at least 30 minutes within 18 C 28 C DC GENERAL MEASUREMENT TIME CHOICES 0 01 10PLC 0 01PLC step AVERAGE READINGS 1 10 TYPICAL READING TIME 31ms DC VOLTAGE OUTPUT VOLTAGE 0 15V OUTPUT OUTPUT ACCURACY 0 05 10mV 23 C 5 C PROGRAMMING RESOLUTION 2 5mV READBACK ACCURACY 0 05 3mvV READBACK RESOLUTION ImV OUTPUT VOLTAGE RISING TIME 0 15ms 10 90 OUTPUT VOLTAGE FALLING TIME 0 65ms 90 10 LOAD REGULATION 0 01 2mV LINE REGULATION 0 5mV STABILITY 0 01 0 5mV RECOVERY TIME 1000 LOAD lt 40us lt 100mV CHANGE lt 80us lt 20mV RIPPLE AND NOISE 1mV rms 0 1MHz 8mVpp 20Hz 20MHz DC CURRENT OUTPUT CURRENT 0 5A 0 9V o o 0 3A 9 15V 23 C 5 C SOURCE COMPLIANCE ACCURACY 0 16 5mA PROGRAMMED SO
63. remote control mode Command SYSTem BEEPer STATe lt b gt Function Turn the buzzer on or off 116 GW INSTEK REMOTE CONTROL lt b gt 0 OFF Turn the buzzer off 1 ON Turn the buzzer on Example SYSTem BEEPer STATe OFF Turns the buzzer off Command SYSTem BEEPer STATe Function Queries the buzzer status Example SYSTem BEEPer STATe Returns the buzzer status Command SYSTem LOCal Function Disable remote control mode and return to local control Example SYSTem LOCal Disables remote control mode 117 GW INSTEK PPH 1503 User Manual System Related Commands Command IDN Function Read the instrument identification lt string gt Description lt string gt The return string contains four field each separated by a comma The first field is the manufacturer followed by the model name serial number and the version number Example IDN Returns GW PPH 1503 XXXXXXXX V0 62 GW Manufacturer PPH 1503 Model name XXXXXXXX Serial number V0 62 version number Command RST Function Resets the unit to RST default conditions Example RST Resets the unit Command TST Function Performs checksum test on the RAM Return 0 No errors value 2 Indicates that there is a RAM error Example TST Return 0 if there are no errors returns 2 if there is an error 118 GW INSTEK REMOTE CONTROL Command WAI Function Waits for all pending operatio
64. ress the Current key to set the current settings See page 35 for operation details Front and rear output toggle switch The key will be lit when the output is set to the rear outputs Rear panel output cx __ The Output key turns the output on or off The Output key will lightup when the output is on On C opat output gt The Lock key is used to disable all the panel keys except for the Output key Pressing the Lock key for at least 2 seconds will turn the panel lock on or off The Lock key can also be used to exit from remote control mode When the panel lock is active the Lock key will light up Locked tox gt GW INSTEK OVERVIEW Numberpad a The numberpad is used to enter D various parameters and values N S The Clear key can be used to clear a OO set parameters b F1 F2 F3 F4 function short cuts Press any of the function short cuts when in the main menu to enter the corresponding function interface F1 Basic power supply function F2 Digital voltmeter function F3 Pulse current meter function F4 Long integration current measurement function c H L A Pulse current measurement shortcut keys These short cut keys only work in the Pulse current measurement main menu H High measurement mode L Low measurement mode A Average measurement mode Directional The directional keys are used for keys and parameter and menu selection as Enter key well for
65. rface Relay control interface 24 7 ISOLATION FROM EARTH 22V MAX SS SS 0 D 0 0 8 8 0 4 J SOURCE SENSE SOURCE DVM IN OUTPUT DVM IN 15V 3A 9V 5A 20VDC MAX 5V IN OUT GND See MOCO oO RELAY CONTROL 15VDC MAX A total of 8 ports 2 positive output terminals 2 negative output terminals a Sense terminal a Sense terminal a DVM input terminal and a DVM input terminal Refer to the printed label under the terminals for the specific order of the terminals A total of 5 ports A 5V input terminal a ground terminal and 2 terminals for relay control See page 56 for relay control details GW INSTEK OVERVIEW Constant Voltage Constant Current Crossover Characteristics Background The unit will switch automatically between constant voltage and constant current according to changes in the load CV mode When the load current is less than the current setting the unit operates in constant voltage mode changing the current level according to the load but maintaining the set voltage level until the current reaches the set current level The status indicator will show CV on the LCD when in CV mode Constant Current When the output current reaches the set current Mode level the unit switches operation to constant current mode The status indicator will show CC on the LCD displ
66. ront or rear output terminals Pressing the Rear key will toggle the output between the front and rear terminals When set to rear the Rear key will light up and REAR will appear in the status bar on on the LCD When set to front the Rear key will not be lit and FRONT will appear in the status bar on the LCD O Gy 38 GW INSTEK BASIC OPERATION Output Press the Output key to turn the output on When the output is on the Output key will light up and ON in green will be shown in the status bar on the LCD When the output is off the Output key will not be lit and OFF in red will be shown in the status bar on the LCD Be amp Status CV CC These two icons represent ey Description the output states of the power supply a CV appears in yellow when the power supply is in constant voltage mode CC appears in red when the power supply is in constant current mode O V P OVP will appear in yellow QQ when the OVP has not been tripped The OVP icon willturnred EB when the OVP has tripped When the OVP protection ONP has not been activated it will be greyed out 39 GW INSTEK PPH 1503 User Manual BEEP When the beeper setting is BEEP activated the BEEP icon will be shown in yellow When the beeper settings is turned off it will be greyed out LOCK When the panel lock is LOCK activated the lock icon will be shown in red When the panel lock i
67. s 7 which are the contents of the service request enable register 126 GW INSTEK REMOTE CONTROL Function STB Function Query the status byte register This is the same as performing a serial poll however the master summary bit MSS bit 6 will not be cleared by the STB command The return value range is from 0 to 255 Example STB 81 Returns 81 if the status byte register is set to 0101 0001 Standard Event Register Commands Command ESE lt Allowed Values gt Function Sets the standard event enable register The allowable value range is 0 255 Example ESE 65 Sets the ESER as 0100 0001 Command ESE Function Queries the standard event enable register It returns are binary weighted decimal value representing all the enabled bits in the standard event register Example ESE 65 Returns 65 as the ESER is set as 0100 0001 Command ESR 127 GW INSTEK PPH 1503 User Manual Function Queries the standard event register It returns a binary weighted decimal value in the range of O 255 Example ESR 198 It returns 198 as the standard event register has a binary value of 1100 0110 Other Status Register Commands Command CLS Function Clears the status byte summary registers and the all event registers Example CLS Clears all the event registers Command OPC Function After all the pending operations are complete sets the operation complete bit in th
68. s For a line frequency of 60Hz the minimum integration time is 850mS with a step resolution of 16 7mS For a line frequency of 50Hz the minimum integration time is 840mS with a step resolution of 20mS e When the integration time is set to Auto Time the system will automatically measure the time between two adjacent rising edges and an appropriate integration time is set for the peak and trough If there are more than two pulses the integration time must be set manually TrigEdge e Trigger edge e Pulse edges are used to trigger long integration measurement Regardless of whether a rising or falling edge is used as a trigger a pulse must furst be detected before measurement can start Measurement can also start without an edge trigger When Trig On Neither is selected measurement starts as soon as the output is turned on 50 GW INSTEK BASIC OPERATION Timeout TrigLeve 4 RecallSetup e Pulse timeout e When long integration measurement is selected and the unit doesn t detect a pulse after a certain amount of time pulse timeout time the No Pulse message will be displayed on the LCD This function is only applicable if rising or falling edge is selected as the edge trigger the Trig On Neither trigger setting has no pulse timeout The pulse timeout has a range of 1 63 seconds e Trigger level When the rising or falling edge trigger is selected for long integration current measurement a puls
69. s turned off the lock icon is greyed out RMT In the remote control display area RMT will be shown in grey when reomote control is disabled When GPIB remote control is Gy active a red GPIB icon is shown When LAN remote QQ control is active ared LAN icon is shown and when USB SEB remote control is active a red USB icon is shown GW INSTEK BASIC OPERATION REAR When the output is setfor EB FRONT the rear panel terminals REAR is displayed in yellow When the output is setfor GR the front panel FRONT is displayed in yellow ON OFF When the output is off OFF ca in displayed When the output is on ON is displayed E DVM Description The PPH 1503 has a separate digital voltmeter with a measurement range of 0 20VDC When using the voltage meter the power supply must be properly grounded Parameter Intrate Sets the reading rate of DVM Description measurements based on the number of PLCs 0 01PLC 10 00PLC 1PLC 16 7ms 60Hz 20ms 50Hz PLC stands for Power Line Cycle 41 GW INSTEK PPH 1503 User Manual AverRead 1 2 The number of samples used to calculate the average The AverRead setting for the power supply functions 1 and the DVM functions 2 are shared Note 1 Power supply functions 2 DVM function 3 Pulse current measurement function 4 Long Integration current measurement function RecallSetup There are 6 sets of save recall memories
70. s Enter Enter the timeout settings and press Enter again to confirm and to return back to the long integration measurement menu The time range is 1 63S The default unit is seconds S 52 GW INSTEK BASIC OPERATION TrigLeve 4 Use the arrow keys to select MARAH and then press Enter Key in te trigger level setting and press Enter again to confirm and to return back to the long integration measurement menu The trigger level range is 0 5A The default is amps A RecallSetup Use the arrow keys to select seems and press Enter to go to the Recall Setup menu Use the arrow keys to select a saved setup and press Enter again to confirm See page 60 for details Operation Output Press the Output key When the ii Output key is lit pulse current measurement is active When no pulse current is detected NO PULSE will be dispalyed in red on the LCD screen The unit will wait until the next pulse is detected 53 GW INSTEK PPH 1503 User Manual Current Sink Function Function When the test circuit is an active circuit and the Description manifested voltage in the test circuit is greater than the output voltage of the power supply the power supply will automatically disipate current from the external power supply When this function is in the normal operating state the power supply outputs the setting voltage which is equivalent to a constant voltage load rather than constant current load The current disip
71. s on the LCD GW INSTEK BASIC OPERATION Current b Step Setting Press the left and right arrow keys i to fine tune the voltage setting at the digit level The selected digit XCD will have a yellow dot directly underneath Press the up and down arrow keys 40 lt gt to adjust the selected digit Press the Voltage key again to finish and exit setting the voltage Press the Current key and the current setting on the LCD is activated A yellow dot appears under the current digit a Use the number pad keys 0 9 Clear to set the current value and then press the Enter key To enter 1 2345A i Core ED The input dialog box appears on the LCD 35 GW INSTEK PPH 1503 User Manual Press the left and right keys A to arrow keys g4 fine tune the current setting at the digit TS level The selected digit ey w will have a yellow dot directly underneath Press the up and down arrow keys 0 gt to adjust the selected digit Press the Current key again to finish and exit setting the current IntRate Use the arrow keys to select RIRA and press Enter Input the parameters and press Enter to save Range 0 1 to 10 00 AverRead 1 2 Use the arrow keys to select and press Enter Input the parameters and press Enter to save Range 1 to 10 CurrRange Use the arrow keys to select and press Enter to go the the CurrentRange menu Input t
72. se the up and down arrows to select al G Press the Enter key to toggle between em the different output formats H Press the Menu key to exit and return to the main menu es Output Formats There are two different output formats to select from KEITHLEY 2303 and FLUKE PM2811 Steps Follow steps A E in the previous section above gt F Use the up and down arrow keys to pad select G Press the Enter key to toggle between each of the output formats H Press the Menu key to exit and return to the main menu Ce Setting the GPIB Configuring the GPIB address for connection to a Address PC Steps Follow steps A E in the previous section above F Use the up and down arrow keys to ane S amp P select G Press the Enter key and then set the GPIB address Press the Enter key again to confirm The address range is 1 30 70 GW INSTEK REMOTE CONTROL H Press the Menu key to exit and return to the main menu Exiting from e Send a remote command to exit from Remote Control remote control mode from the PC or Mode long press the unlock key on the front panel to exit from the remote control mode The RMT icon in the status bar RMT will becomes greyed out when you exit from remote control mode e The LOCK icon becomes greyed out when the panel becomes unlocked e Unplug the connection from the rear panel 71 GW INSTEK PPH 1503 User Manual LAN Description When using the LA
73. stallation e Measurement category III is for measurement performed in the building installation e Measurement category II is for measurement performed on the circuits directly connected to the low voltage installation e Measurement category is for measurements performed on circuits not directly connected to Mains Power Supply e AC Input voltage range 90V AC 264V AC A e Frequency 50Hz 60Hz WARNING e To avoid electrical shock connect the protective grounding conductor of the AC power cord to an earth ground GW INSTEK PPH 1503 User Manual Fuse e Fuse type T2 0A 250V AN e To prevent fire replace the fuse only with the WARNING specified type and rating e Disconnect the power cord before replacing the fuse e Make sure the cause of fuse blowout is fixed before replacing the fuse Cleaning the e Disconnect the power cord before cleaning the power supply oscilloscope e Usea soft cloth dampened in a solution of mild detergent and water Do not spray any liquid into the oscilloscope e Do not use chemicals containing harsh products such as benzene toluene xylene and acetone Operation e Location Indoor no direct sunlight dust free Environment almost non conductive pollution Note below e Relative Humidity lt 80 e Altitude lt 2000m e Temperature 0 C to 40 C Pollution Degree EN 61010 1 2001 specifies pollution degrees and their requirements as follows The PPH 1503 falls under d
74. ted and if the current setting is greater than 1A the setting value is automatically reduced to 1A 32 GW INSTEK BASIC OPERATION LimMode PowoOnSetup RelayControl O V P RecallSetup Current limiting mode There are 4 settings for the current limiting mode Limit Trip LimitRelay Trip Relay The Limit settings will limit the current When the current reaches the setting value the current remains constant as in CC mode The Trip setting will turn the output off when the current limit has been reached See page 56 for details on the Limit Relay and Trip Relay settings Power on settings have 11 settings Rst SAVO SAV9 See page 60 for further details The relay control settings have 2 configurations Zero One See page 56 for further details The overvoltage settings have a setting range of 0 05 to 15 20V or OFF There are 6 sets of save recall memories Rst SAVO to SAV4 33 GW INSTEK PPH 1503 User Manual Output Range Voltage 0 000V 15 000V Current 0 0000A 3 0000A OV 15V 0 0000A 5 0000A 0V 9V Parameter Voltage Settings 34 Press the Voltage key and the voltage setting on the LCD is activated A yellow dot appears under the current digit a Use the number pad keys 0 9 Clear to set the voltage value and then press the Enter key To enter 12 345V A A P 7 2 Ce A i 2 DC DC TDA am C 5 ye The input dialog box appear
75. th the coloured marking identified in your plug appliance proceed as follows The wire which is coloured Green amp Yellow must be connected to the Earth terminal marked with either the letter E the earth symbol or coloured Green Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier This cable appliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user instructions for details As a guide a cable of 0 75mm should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used Any exposed wiring from a cable plug or connection that is engaged in a live socket is extremely hazardous If a cable or plug is deemed hazardous turn off the mains power and remove the cable any fuses and fuse assemblies All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard 10 GW INSTEK OVERVIEW Overview This chapter contains a brief introduction to PPH 1503 the main features as well as an overview of the front and rear panel Use the Getting Started
76. tness gt is an integer value with a range of 1 3 3 Continuous Real Number Parameter that must be a continuous real number can have any value within the effective range and accuracy For example The command CURRent lt current gt MINimum MAXimum is used to set the current value for the current operating channel lt current gt can be any value within the setting range of the current channel 4 Discrete For discrete parameters only those values that are listed can be used For example The RCL 0 1 2 3 4 5 command can only use 0 1 2 3 4 5 5 ASCII Strings ASCII string parameters must use a combination of ASCII characters in a string For example For the command MODE lt name gt lt name gt must be an ASCII string Command Abbreviations The syntax for SCPI commands contain a combination of upper and lower case letters The upper case letters in a command represent the short form of that command Commands are not case sensitive and can used in both upper and lower case Note however to use the short form of the command only the capital letter part of the command can be used no other abbreviation can be used For example 79 GW INSTEK PPH 1503 User Manual MEASure CURRent Can be abbreviated to MEAS CURR Command Terminators When sending a command to the function generator the command must be terminated with a lt new line gt character The IEEE 4888 EOI can also be used as a lt
77. to 5 321V Command SOURce VOLTage LEVel IMMediate AMPLitude Function Queries the output voltage setting Example SOURce VOLTage 94 Returns the output voltage setting GW INSTEK REMOTE CONTROL Readback Commands Command Function Description SENSe 1 FUNCtion lt name gt Selects the type of measurement function voltage current pulse long integration and DVM measurement name VOLTage Voltage measurement CURRent Current measurement PCURrent Pulse current measurement LINTegration Long integration measurement DVMeter DVM input measurement Example Command Function Response time SENSe FUNCtion VOLTage Selects Voltage as the measurement type SENSe 1 FUNCtion Queries the type of measurement function Maximum 16ms Example Command Function Description Example SENSe FUNCtion Returns the type of measurement function SENSe 1 NPLCycles lt n gt Sets the number of PLCs for the integration rate for voltage current and DVM measurements 0 01 10 00 SENSe NPLCycles 0 10 Sets the number of PLCs to 0 1 lt n gt 95 GW INSTEK PPH 1503 User Manual Command SENSe 1 NPLCycles Function Returns the number of power line cycles used for the integration rate Example SENSe NPLCycles Returns the number of PLCs Command SENSe 1 AVERage lt NRf gt F
78. to the auto setting Example SENSe LINTegration TIME AUTO Sets the long itegration time to the auto setting Command SENSe 1 LINTegration TLEVel lt NRf gt Function Sets the long integration trigger level Description lt NRf gt 0 000 5 000 102 GW INSTEK REMOTE CONTROL Example SENSe LINTegration TLEVel 1 2 Sets the long integration trigger level to 1 2A Command SENSe 1 LINTegration TLEVel Function Queries the long integration trigger level setting Example SENSe LINTegration TLEVel Returns the long integration trigger level Command SENSe 1 LINTegration TEDGe lt name gt Function Sets the long integration triggering edge Description lt name gt RISING Rising triggering edge FALLING Falling triggering edge NEITHER No triggering edge Example SENSe LINTegration TEDGe RISING Sets the long integration triggering edge to rising edge Command SENSe 1 LINTegration TEDGe Function Queries the long integration triggering edge Example SENSe LINTegration TEDGe Returns the long integration triggering edge Command SENSe 1 LINTegration TimeOUT lt NRf gt Function Sets the timeout time for the long integration measurement Description lt NRf gt 1 63 103 GW INSTEK PPH 1503 User Manual Example SENSe LINTegration TimeOUT 2 Sets the timeout time to 2 seconds Command SENSe 1 LINTegration TimeOUT Fucntion Queries the timeout time
79. triggering option Example SENSe PCURrent SY NChronize Returns the pulse current trigger option Command SENSe 1 PCURrent SYNChronize DELay lt NRf gt Function Sets the trigger delay time Description lt NRf gt 0 0 1 or 0 5 Pulse current digitization Example SENSe PCURrent SYNChronize DELay 0 05 Sets the trigger delay time to 0 05 seconds Command SENSe 1 PCURrent SYNChronize DELay Function Queries the trigger delay time Example SENSe PCURrent SYNChronize DELay Returns the trigger delay time Command SENSe 1 PCURrent SYNChronize TLEVel lt NRf gt Function Sets the trigger level Description lt NRf gt 0 000 5 000 Example SENSe PCURrent SY NChronize TLEVel 1 Sets the trigger level to 1 000A 101 GW INSTEK PPH 1503 User Manual Command SENSe 1 PCURrent SYNChronize TLEVel Function Queries the trigger level Example SENSe PCURrent SYNChronize TLEVel Returns the trigger level Command SENSe 1 LINTegration TIME lt NRf gt Function Sets the long integration integration time Description lt NRf gt X power line frequency X 0 840 for 50Hz X 0 850 for 60Hz Example SENSe LINTegration TIME 1 2 Sets the long integration time to 1 25 Command SENSe 1 LINTegration TIME Function Queries the the long integration time Example SENSe LINTegration TIME Returns the long integration time Command SENSe 1 LINTegration TIME AUTO Function Sets the long itegration time
80. unction Sets the averaging number for the voltage current and DVM measurements Description lt NRf gt 1 10 Example SENSe AVERage 3 Sets the averaging number to 3 Command SENSe 1 AVERage Function Returns the average number Examle SENSe AVERage Returns the average number Command SENSe 1 CURRent DC RANGe UPPer lt n gt Description Sets the current measurement range Description lt n gt MIN low range MAX high range Example SENSe CURRent RANGe MIN Sets the current range to low Command SENSe 1 CURRent DC RANGe UPPer 96 GW INSTEK REMOTE CONTROL Function Queries the current measurement range Example SENSe CURRent RANGe Returns the current measurement range Command SENSe 1 CURRent DC RANGe AUTO lt b gt Function Turns the automatic range function Description lt b gt 0 OFF Turn off 1 ON Turn on Example SENSe CURRent RANGe AUTO ON Turns the automatic range function on Command SENSe 1 CURRent DC RANGe AUTO Function Queries the state of the automatic range function Example SENSe CURRent RANGe AUTO Returns the status of the automatic range function Command SENSe 1 PCURrent A VERage lt NRf gt Function Sets the averaging number for pulse current measurements Description NRf 1 100 or 1 5000 pulse current digitization Example SENSe PCURrent AVERage 5 Sets the average number to 5 97 GW INSTEK PPH 1503 User Manual
81. unicate LAN GATEway Returns the gateway IP Command SYSTem COMMunicate LAN DNS lt IPaddress gt Function Sets the DNS IP address Description lt IP address gt ASCII string within the range of 1 0 0 0 to 223 255 255 255 excluding 127 nnn nnn nnn The SYSTem COMMunicate LAN APPLy command needs to be executed before the DNS IP address setting can take effect Example SYSTem COMMunicate LAN DNS 172 16 2 3 Sets the DNS address to 172 16 2 3 Command SYSTem COMMunicate LAN DNS Function Queries the DNS addresss Example SYSTem COMMunicate LAN DNS Returns the DNS address 115 GW INSTEK PPH 1503 User Manual Command SYSTem COMMunicate LAN MANualip STATe lt b gt Function Allow the IP address to be set manually lt b gt 0 OFF disable the manual IP address 1 ON enable the manual IP address Example SYSTem COMMunicate LAN MANualip ON Enables a manual IP address to be set Command SYSTem COMMunicate LAN MANualip STATe Function Queries whether manual IP addressing has been enabled or disabled Example SYSTem COMMunicate LAN MANualip Returns the status of the manual IP addressing Command SYSTem COMMunicate LAN APPLy Function When this command is executed all the LAN settings are applied Example SYSTem COMMunicate LAN APPLy Applies all the LAN settings Command SYSTem REMote Function Sets the unit to remote control Example SYSTem REMote Sets to
82. xx Vx xx Disabling Remote Control Mode e Send a remote command to exit from remote control mode from the PC or long press the unlock key on the front panel to exit from the remote control mode The RMT icon in the status bar will become grey when you exit from remote control mode RMT The LOCK icon in the status bar will also turn grey Unplug the USB cable from the rear panel 68 N Note USB devices are hot plug devices You can directly remove the cable and exit GW INSTEK REMOTE CONTROL GPIB Description The GPIB remote control can be set from the interface menu The communication data format compatibility settings and and address must all be configured before using GPIB remote control Interface Rear panel GPIB port a3 i Connection When the unit has been successfully GPIB connected via GPIB GPIB will appear in the status bar in red The panel key will also be locked The front panel keys are LOCK automatically locked when the unit is in remote mode Communication There are four data formats to select from Data Format Exponential 2DPS 3DPS and 4DPS Steps A Press the Menu key to enter the main menu C B Use the up and down arrow keys to a select C Press Enter to enter the Interface menu D Use the up and down arrow keys to select GPIB E Press Enter to enter the GPIB menu 69 GW INSTEK PPH 1503 User Manual A Jej o N L F U

Programmable High Precision DC Power Supply

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