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6-5. Total System Adjustment 

 

 

Adjustment 

For controlling the power supply units using the GP-600B, 
preliminary adjustment is needed to obtain necessary accuracy. 

 

 

- Aging 

Before starting adjustment, connect the GP-600B with the power 
supply units to be controlled for aging, which should be done for 
30 minutes or more. 

 

- Offset adjustment 

Output of power supply 

 

 

 

 
 

GP-IB input 

 

 
 

Set 1% output of the FS voltage (current) through the GP-IB bus, 
and adjust the offset so that output of the controlled power supply 
becomes 1% of the FS voltage (current) with the semi-fixed 0V 
control of each channel on the GP-600B panel. 

 

 

Use the variable resistor 7 on the panel to adjust the voltage offset   

 of 

CH1 

A. 

 

Use the variable resistor 10 on the panel to adjust the voltage   

 

offset of CH1 B. 

 

Use the variable resistor 13 on the panel to adjust the voltage   

 

offset of CH2 C. 

 

Use the variable resistor 16 on the panel to adjust the voltage   

 

offset of CH2 D. 

Содержание GP-600B

Страница 1: ...GP IB ADAPTER GP 600B INSTRUCTION MANUAL PRINTED IN JAPAN B65 0002 20 N ...

Страница 2: ... Turned On 10 5 FRONT AND REAR PANELS 11 6 OPERATION PROCEDURES 15 6 1 Setting and Connection 15 6 2 Connection with Power Supply Unit to be Controlled 17 6 2 1 Connection with the PS series 17 6 2 2 Connection with PA B series 18 6 2 3 Connection with PD A series 19 6 2 4 Connection with the PT series 20 6 3 GP IB 21 6 4 Simple USB Virtual COM Port 39 6 5 Total System Adjustment 40 7 OUTSIDE DIME...

Страница 3: ...vided Pictorial Indication Some part of this product or the manual may show this pictorial indication In this case if the product is incorrectly used in that part a serious danger may be brought about on the user s body or the product To use the part with this pictorial indication be sure to refer to this manual Warning character Indication WARNING CAUTION If you use the product ignoring this indi...

Страница 4: ...ble for any other products Disuse the power cable and contact our distributor if the supplied power cable becomes defective Using the product with the defective power cable may result in electric shocks electrocution or a fire The fuse for protection The product will not run if its input power protection fuse flows out The protection fuse is built in the product and the user cannot replace it When...

Страница 5: ...not operate the product with wet hands Otherwise an electric shock or fire may occur Use in a gas Use in and around a place where an inflammable or explosive gas or steam is generated or stored may result in an explosion and fire Do not operate the product in such an environment Also use in and around a place where a corrosive gas is generated or spreading causes a serious damage to the product Do...

Страница 6: ...t is used with its performance and specifications stable For consultation about the product calibration call the distributor or the company where you bought the product Daily maintenance When you clean off the dirt of the product covers panels and knobs avoid solvents such as thinner and benzene Otherwise paint may peel off or the resin surface may be affected To wipe off the covers panels and kno...

Страница 7: ...n conformity to the IEEE 488 1978 The GP 600B also has an SRQ function to detect errors in the power supply units for safety system control The GP 600B converts digital signals through the GP IB bus into two channels four references of analog signals The GP 600B has two references per channel and can control the voltage and current of the power supply units through a single channel Each channel of...

Страница 8: ...the OUTPUT OFF key Service request functions GP IB command errors GP IB parameter errors OVP operation and alarm OCP OTP and power off operations CV operation CC operation and OUTPUT OFF key Analog Outputs Outputs A B CH1 Outputs C D CH2 Output voltage range 0V to10V 0V to 10V Full scale voltage range 10V 15 10V 15 Max output current 3mA 3mA D A converter resolution 12bit 0 025 2 4mV 12bit 0 025 2...

Страница 9: ...P IB connector analog output AC500V for 1 minute Between analog outputs AC500V for 1 minute A C D and B C D Analog output casing AC500V for 1 minute Input power source casing AC1 5kV for 1 minute Input power source analog output AC1 5kV for 1 minute Insulation Resistance Input power source casing DC500V 30MΩ or more Analog output casing DC500V 30MΩ or more Power Source Power Consumption AC100V 10 ...

Страница 10: ...place whose temperature and or humidity exceeds the rating Do not use the GP 600B in a place with much dust or vibrations Take noise reducing measures properly if there is a large noise source around the GP 600B Before turning on the GP 600B Complete all connections and make sure that connections are done properly before turning on the GP 600B Turn on or off power in the order shown in the drawing...

Страница 11: ... of the power supply unit as shown below when the GP 600B is combined with floating circuit type power supply units PS series power supply unit Rear panel of the PS series Connect the GND cable between the and GND terminals or disconnect the GND cable as shown on the right Be sure to disconnect the GND cable when it is not used ...

Страница 12: ...minals or disconnect the GND cable as shown on the right Disconnect the shorting bar PD A series Precautions for connecting the GND cable and shorting bar Connect the shorting bar between the and GND terminals or disconnect the GND cable as shown on the right Disconnect the shorting bar GND GND Shorting bar Shorting bar ...

Страница 13: ...luences upon noises or the regulated DC power supply units amplify ripple noises output from the GP 600B Precautions for connection The GP 600B converts digital signals through the GP IB bus into analog signals with two D A converters in two isolated channels and outputs individual four channel analog signals However do not use the reference channels B and D in the floating condition Such operatio...

Страница 14: ...erial output ports Those data pass through photo isolators and are isolated The shift registers convert them into parallel data which are input to the D A converters The CPU also executes controls of the control connectors and SRQ processing The block diagram of the GP 600B is as shown below Block diagram Port Photo isolator Shift register D A POWER CONT 2 Photo isolator Shift register D A OUT A P...

Страница 15: ... terminals 3 to 6 NC 9 Digital output Output On Off Photo coupler 10 Digital output Output On Off Photo coupler 11 Digital input Alarm signal HC14 12 Digital GND 13 Digital input CV mode signal HC14 14 Digital input CC mode signal HC14 15 Digital input Power On signal HC14 16 Digital input OVP signal HC14 17 Digital output Output On Off HC07 18 Digital output Power On Off HC07 19 Digital power sup...

Страница 16: ... Output Status when GP 600B is Turned On CH1 voltage control output Reference A CH1 current control output Reference B CH1 output control CH1 power relay control 0V 0V 5V Off 5V Off CH2 voltage control output Reference C CH2 current control output Reference D CH2 output control CH2 power relay control 0V 0V 5V Off 5V Off ...

Страница 17: ...11 5 FRONT AND REAR PANELS 1 2 3 4 5 6 9 12 15 18 8 11 14 7 10 13 17 16 19 LISTEN M ADE IN JAPAN 100 115 200 230V SERIAL CH2 CH1 REM OTE E0I CR LF L ONLY OFF 0 ON 1 GP IB AC INPUT 23 22 21 20 24 25 26 ...

Страница 18: ...remote status where the power supply units are controlled through the GP IB bus It is always lit in the listen only mode OUTPUT OFF Non lock This switch nulls the reference output and turns off output when one of reference outputs A to D or channel 1 and 2 outputs is set A service request is also output in this condition See the description enclosed in the rectangular frame on page 32 for the proc...

Страница 19: ...tor is used to adjust the output voltage of channel 2 C coarsely CH2 C FS FINE This semi fixed one turn resistor is used to adjust the output voltage of channel 2 C finely CH2 D 0V This semi fixed one turn resistor is used to adjust the output offset of channel 2 D CH2 D FS COARSE This semi fixed four turn resistor is used to adjust the output voltage of channel 2 D coarsely CH2 D FS FINE This sem...

Страница 20: ...s A and B and digital control signals of channel 1 are input and output through this connector 23 CH2 connector Connect a cable between this connector and a power supply unit to be controlled Analog outputs C and D and digital control signals of channel 2 are input and output through this connector 24 USB connector A simple USB virtual COM port Connect a USB cable 25 AC inlet Connect the AC power ...

Страница 21: ...r while the GP 600B is electrified Disobedience to this instruction may result in malfunctioning or troubles Fix the GP IB bus cable to the GP IB connector receptacle of the GP 600B firmly with the screws 2 Setting the address listen only mode and send delimiter Use the address switches 8 bit DIP switches on the rear panel of the GP 600B to set the address of the GP 600B on the GP IB bus listen on...

Страница 22: ...OFF to select the CR LF delimiter 3 Output Off function The reference outputs A B C and D are reset to zero i e outputs are turned off when the OUTPUT OFF key on the panel of the GP 600B is pressed The outputs may be restored with the command with no parameter shown in the frame on page 32 The connected power supply units stay in the remote state Bring each unit individually into the local state N...

Страница 23: ...s with the GP 600B Setting of the DIP switch cluster S1 Set the DIP switches of the PS power supply units as shown below when connecting them with the GP 600B S1 Switches 3 5 and 7 ON ON 1 2 3 4 5 6 7 8 9 10 Rear panel of CH2 PS series S1 S1 20 pin flat cable CH1 CH2 Rear panel of GP 600B 20 pin flat cable Rear panel of CH1 PS series ...

Страница 24: ...and OUTPUT switches on the front panel of the PA B series to the upper positions Connect the voltage control wires even if current control is only used CH1 CH2 Rear panel of GP 600B 20 pin V V V V V R1 V R2 I V I V I R1 I R2 OUTPUT 1 OUTPUT 2 CV CC ALARM COMMON I MON I MON V MON V MON J2 Rear panel of PA B series Brown Black Red Orange Yellow Green Blue Purple White Gray 1 2 7 8 9 10 13 14 11 12 G...

Страница 25: ...vice is required for output On Off control and status signal control CH1 CH2 Rear panel of GP 600B 12 11 10 9 8 7 6 5 4 3 2 1 EXT I F option Disconnect the Shorting bars orange red black brown Constant Voltage setting Constant Current setting Connect with DIN connector On the PD A series rear panel Rear panel of PD A series 1 2 3 4 5 6 12 15 17 19 8 7 2 1 brown black red orange GP 600B connector N...

Страница 26: ...P 600B Connect the 20 pin connector with the GP 600B and 26 pin connector with the PT series Setting of the DIP switch cluster S1 Switches 6 7 and 8 ON ON 1 2 3 4 5 6 7 8 9 10 Rear panel of CH2 PT series Rear panel of CH1 PT series S1 S1 20 pin cable 20 pin cable CH1 CH2 Rear panel of GP 600B ...

Страница 27: ...r less It features a three wired asynchronous handshaking method and devices of different transmission rates may reside in a single system Piggyback connection allows the devices to be connected by plugging a connector on another one Fig 1 shows the timing chart of the hand shaking sequence Fig 2 shows the flow chart Timing chart of the hand shaking sequence D10 1 8 DAV NRFD NDAC 3 1 4 11 21 23 20...

Страница 28: ... DAV is set to Lo Is NDAC Hi DAV is set to Hi Are there other data End Source Hi High level Lo Low level Is DAV Lo NRFD is set to Lo Receives DIO signal NDAC is set to Hi Is DAV Hi NDAC is set to Lo YES NO YES NO YES YES YES YES YES NO NO NO NO NO NRFD goes Hi only when all acceptors are ready Data go valid Ready to receive them NDAC stays Lo until all acceptors receive data Hereinafter data are i...

Страница 29: ...nd or parameter error Example Mode setting PA18 2B It is possible to write several commands on a single line if they are separated with separators or Multi statement However among data request commands the last one is only valid If a command contains an error that command causes a GP IB error SRQ and the following command is executed A delimiter is added to the end of a command Any of the followin...

Страница 30: ...annel OFFCH X1 1 Data setting command 9 CQ Sets the maximum value of the reference A MODEA X1 Data setting command 10 CQ Sets the maximum value of the reference B MODEB X1 Data setting command 11 CQ Sets the maximum value of the reference C MODEC X1 Data setting command 12 CQ Sets the maximum value of the reference D MODED X1 Data setting command 13 CQ Sets the output value of the reference A SETA...

Страница 31: ...fault values Clear the communication buffer Clear each command parameter Clear the status byte However the REN status is unchanged to ensure the command operation The REN and LISTEN LEDs go on Command CLS Function Clear the status byte Command IDN Function Read the device ID ...

Страница 32: ...nnel is specified it is stored Parameter X1 0 Select both channels 1 and 2 1 Select channel 1 2 Select channel 2 2 Voltage and current mode setting Command MODE X1 X2 Function Function Set the rated voltage and current of the power supply unit connected to a selected channel The reference output of the channel set with this command may only be set with the VOLT and AMP commands If this command is ...

Страница 33: ... selected channel s is as shown below SELECT 0 References A and C SELECT 1 Reference A SELECT 2 Reference C 4 Current setting Command AMP X1 Function Set the output current of the power supply unit in the selected channel This command is available only when the rated voltage and rated current of the selected channel are set with the MODE command Otherwise this command causes a GP IB run error If t...

Страница 34: ...ned on Parameter X1 0 Turns off output 1 Turns on output 6 Power relay control Command POWER X1 Function Turn on or off the power relay of the selected channel power supply unit The power relay is off when the GP 600B is turned on Parameter X1 0 Turn off the power relay 1 Turn on the power relay This command is not functional for the PA B and PT series ...

Страница 35: ...l 2 outputs An alarm signal Power supply channel 2 enters the OVP status Power switch of power supply is turned off Power supply channel 2 enters the CC mode Power supply channel 2 enters the CV mode Power switch of power supply channel 1 is turned off Power supply channel 1 outputs an alarm signal Power supply cannel 1 enters the OVP status Power supply channel 1 enters the CC mode Power supply c...

Страница 36: ...ing of reference A Command MODEA X1 Function If the maximum value of the reference A is set with this command the reference output may be only changed with the SETA command The reference output is reset to zero if this command is sent while the reference is being output Parameter X1 Maximum output 0 01 to 9999 99 The format of the numeral is XXXX XX 10 Maximum value setting of reference B Command ...

Страница 37: ...s set with this command the reference output may be only changed with the SETD command The reference output is reset to zero if this command is sent while the reference is being output Parameter X1 Maximum output 0 01 to 9999 99 The format of the numeral is XXXX XX 13 Output setting of reference A Command SETA Function Set the output of the reference A This command is available only when the maxim...

Страница 38: ...vailable only when the maximum value of the reference C is set with the MODEC command In other condition this command causes a GP IB run error The reference output is set to zero when the GP 600B is turned on Parameter X1 Output value 0 to maximum set value of the reference C The format of the numeral is XXXX XX 16 Output setting of reference D Command SETD X1 Function Set the output of the refere...

Страница 39: ...ME X1 Function Specify the time of masking service request output in CV or CC operation when the output is turned on with the OUT 1 command The time is set in 10 ms multiplied by the parameter value 10 ms x parameter value This command only masks the service requests caused in CV and CC operations of a channel whose output is turned on Service requests due to other causes are issued The parameter ...

Страница 40: ...ests or send data and accordingly the controller cannot check the conditions of the power supply units Please note this When several GP 600B units are connected with the GP IB bus it is necessary to bring each unit into the listen only mode by specifying its address However all units return to the normal mode regardless of the addresses when the command is issued once Parameter X1 0 Returns to the...

Страница 41: ...D AD Without option PS PT O Functions provided x functions not provided Power supply channel 2 outputs an alarm signal Power supply channel 2 is in the OVP status Power switch of power supply channel 2 is off Power supply channel 2 is in the CC mode Power supply channel 2 is in The CV mode Power switch of power supply channel 1 is off Power supply channel 1 outputs an alarm signal Power supply cha...

Страница 42: ...rror in the power supply unit The format of the response is the same as that of the setting command and parameter However the command with no parameter is only returned if the parameter is not set in that command When SELECT 0 is specified for commands 2 to 7 the returned command has no parameter Specify SELECT 1 or SELECT 2 and make an inquiry for each channel NOTE If data is requested by specify...

Страница 43: ... than 100 ms 4 The CH1 power supply unit enters the CC operation state May be ignored if the CV state is shorter than 100 ms 5 The CH2 power supply unit enters the CC operation state May be ignored if the CV state is shorter than 100 ms 6 GP IB command error This error occurs when an unauthorized command or a misspelled command is issued 7 GP IB command error This error occurs when the command has...

Страница 44: ...y mode The GP 600B enters the listen only mode when the address switches are set or the LISTEN command is sent after it is turned on In the listen only mode the GP 600B executes all commands regardless of the address and accordingly control of several units is enabled However service request issuing and data transmission are disabled Thus the controller cannot check the command errors or the statu...

Страница 45: ...homepage http www ftdichip com according to the PC in use store it in an appropriate folder and unfreeze it When the GP 600B is connected with the PC the PC detects it as a new device and the driver install wizard activates Specify the frozen folder For details refer to the FTDI homepage The installation procedures may be downloaded Port setting Baud rate 9600bps Data bit 8 Parity None Stop bit 1 ...

Страница 46: ...B input Set 1 output of the FS voltage current through the GP IB bus and adjust the offset so that output of the controlled power supply becomes 1 of the FS voltage current with the semi fixed 0V control of each channel on the GP 600B panel Use the variable resistor 7 on the panel to adjust the voltage offset of CH1 A Use the variable resistor 10 on the panel to adjust the voltage offset of CH1 B ...

Страница 47: ...s on the GP 600B panel The FS variable resistor of each output has COARSE and FINE controls Use the variable resistors 8 and 9 on the panel to adjust the FS voltage of CH1 A Use the variable resistors 11 and 12 on the panel to adjust the FS voltage of CH1 B Use the variable resistors 14 and 15 on the panel to adjust the FS voltage of CH2 C Use the variable resistors 17 and 18 on the panel to adjus...

Страница 48: ...42 LISTEN 7 OUTSIDE DIMENSIONS 134 124 10 70 350 363 1 5 3 ...

Страница 49: ...1850 1 Tsuruma Machida shi Tokyo 194 0004 Japan http www texio jp ...

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