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CREATIVE ELECTRONICS SMC-3303X, Руководство по эксплуатации

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5.3 Command Syntax 

Command format 

 

1: command header 

2: output channel 

3: separator 

4: parameter 

 

 

 

Parameter 

Type 

<Boolean> 

<NR1> 

<NR2> 

Description 

Boolean logic 

Integers 

Decimal numbers 

Example 

0 (off), 1 (on) 

0, 1, 2, 3 

0.1, 3.14, 8.5         

 

 

 

 

Output channel 

1 (CH1) or 2 (CH2) 

 

 

Note 

Commands must be capital letters 

 

 

 

 

5.4 Error Messages 

The following error messages might appear when the power supply cannot accept the command. 

Message contents 

Descriptions 

a 

Program mnemonic too 

long 

The command length must be 15 characters or less. 

b 

Invalid character 

Invalid characters, such as symbols, are entered. Example: VOUT# 

c 

Missing parameter 

The parameter is missing from the command. Example: VSET: (should 

have a number) 

d 

Data out of range 

The entered value exceeds the specification. Example: VSET:33 (should 

b

e

≤

32V) 

e 

Command not allowed 

The entered command is not allowed in the circumstance. Example: trying 

to set CH2 output while in the tracking mode.     

f 

Undefined header 

The entered command does not exist, or the syntax is wrong. 

 

 

 

 

 

 

5.5 Command List 

Detailed descriptions of each command starts from the next page. 

The “HELP” command shows all the following commands and their meanings, except for the HELP command itself. 

 

Command 

Meanings 

ISET<X>:<NR2> 

Sets the output current 

ISET<X>? 

Retunes the output current setting 

VSET<X>:<NR2> 

Sets the output voltage 

VSET? 

Returns the output voltage setting 

IOUT<X>? 

Returns the actual output current 

VOUT<X>? 

Returns the actual output voltage 

TRACK<NR1> 

Selects the operation mode 

BEEP<BOOLEAN> 

Turn on or off the beep 

OUT<BOOLEAN> 

Turn on or off the output 

STATUS? 

Returns the MODEL status 

Содержание SMC-3303X

Страница 1: ...Udyog Vihar Phase IV Gurugram 122015 Haryana India Tel 91 124 4909 850 Fax 91 11 66173638 Email ptgsales smcel com Web www smcel com Triple Output Digital Power Supply Model No SMC 3303X Operation Manual BENCHTOP INSTRUMENT S M CREATIVE ELECTRONICS LIMITED ...

Страница 2: ...tics 6 2 SETUP 7 2 1 Power Up 7 2 2 Load Cable Connection 7 2 3 Output ON OFF 8 2 4 Beep ON OFF 8 2 5 Front Panel Lock 8 3 OPERATION 9 3 1 CH1 CH2 Independent Mode 9 3 2 CH3 Independent Mode 9 3 3 CH1 CH2 Tracking Series Mode 10 3 4 CH1 CH2 Tracking Parallel Mode 13 4 SAVE RECALL SETUP 15 4 1 Save Setup 15 4 2 Recall Setup 15 5 REMOTE CONTROL 16 5 1 Remote Control Setup 16 5 2 Remote Connection St...

Страница 3: ... instrument when it is connected to AC mains The max output voltage of the instrument may be over 60VDC avoid touch the metal contact part of the output terminals Do not use the instrument in an atmosphere which contains sulfuric acid mist or other substances which cause corrosion to metal Do not use the instrument in a dusty place or a highly humid place as such will cause instrument reliability ...

Страница 4: ... are controlled separately The isolation degree from output terminal to chassis or from output terminal to output terminal is 300V In the tracking modes both the CH1 and CH2 outputs are automatically connected in series or parallel no need to connect output leads In the series mode the output voltage is doubled in the parallel mode the output current is doubled Constant Voltage Constant Current Ex...

Страница 5: ...outputs 30V 3A 2 2 5V 3 3V 5V 3A 1 Digital panel control Panel lock function 4 programming presets for voltage and current save recall Coarse and fine control for voltage and current Software calibration Beeper output Voltage and current limit preset Protection Over load over temperature protections Reverse polarity protection Interface USB interface for remote PC control 1 5 Front Panel Overview ...

Страница 6: ...0 for details Parallel Series keys Activates Tracking Parallel operation or Tracking Series operation Refer to page 12 for details Lock key Locks or unlocks the front panel settings Refer to page 10 for details Output key Turns the output on or off Voltage knobs Adjusts the output voltage level for CH1 or CH2 Pressing the knob switches for coarse and fine level setting When in fine adjustment the ...

Страница 7: ... Indicates CH1 constant voltage or constant current operation mode CH2 output Outputs CH2 voltage and current CH2 CV CC PAR indicator Indicates CH2 constant voltage constant current or tracking parallel operation mode CH3 output Outputs CH3 voltage and current CH3 overload Indicator Indicates when CH3 output current is overloaded CH3 voltage Selector Selects CH3 output voltage from 2 5V 3 3V 5V ...

Страница 8: ... command based remote control page 18 For models with USB interface Power cord fuse socket The power cord socket accepts the AC mains Refer to page 9 for power up details The fuse holder contains the AC main fuse Refer to page 23 for details of fuse replacement AC line voltage selector Selects AC line voltage from 110V 220V ...

Страница 9: ...is kept at the setting and the Current level fluctuates according to the load condition until it reaches the output current setting CC mode When the current level reaches the output setting the instrument starts operating in Constant Current mode The indicator on the front panel turns red C C The Current level is kept at the setting but the Voltage level becomes lower than the setting in order to ...

Страница 10: ...st recalled settings Power off Press the power switch again to turn off the power 2 2 Load Cable Connection Standard accessory 1 Turn the terminal counterclockwise and loosen the screw 2 Insert the cable terminal 3 Turn the terminal clockwise and tighten the screw Banana plug Insert the plug into the socket Wire type When using load cables other than the attached make sure they have enough current...

Страница 11: ...he beeper sound is enabled To turn off the beep press the beep key for 2 seconds A beep sound comes out and the beeper setting will be turned off To enable the beeper press the beep key again for 2 seconds List of beeper The following operations go with a beep sound when the beeper setting is on Power on INDEP SER PAR mode switching Setup save recall Voltage current knob fine coarse knob Output on...

Страница 12: ...ge and current Press the CH1 switch LED turns on and use the Voltage and Current knob By default the Voltage and Current knob work in the coarse mode To activate the fine mode press the knob and turn on the FINE LED Coarse 0 1V or 0 1A rotation click Fine the smallest digit rotation click 4 Repeat the above settings for CH2 channel 5 To turn on the output press the output key The key LED turns on ...

Страница 13: ... CC to CV When the output Current level exceeds 3A the overload indicator turns red and CH3 operation mode switches from Constant Voltage to Constant Current Note overload in this case does not mean an abnormal operation 3 3 CH1 CH2 Tracking Series Mode Background Tracking series operation doubles the Voltage capacity of the power supply series by internally connecting CH1 Master and CH2 Slave in ...

Страница 14: ...b to set the CH2 output current to the maximum level By default the Voltage and Current knob work in the coarse mode To activate the fine mode press the knob and turn on the FINE LED Coarse 0 1V or 0 1A rotation click Fine the smallest digit rotation click 4 Press the CH1 switch LED turns on and use the Voltage and Current knob to set the output voltage and current level 5 To turn on the output pr...

Страница 15: ...e the tracking series mode The key LED turns on 2 Connect the load to the front panel terminals CH1 CH2 Use the CH1 terminal as the common line connection 3 Press the CH1 switch LED turns on and use the Voltage knob to set the master slave output voltage the same level for both channels By default the Voltage and Current knob work in the coarse mode To activate the fine mode press the knob and tur...

Страница 16: ...lave CH1 voltage level CH1 meter reading shows the output voltage In the above case 20 0V Slave CH1 current level CH1 meter reading shows the output current In the above case 2 000A 3 4 CH1 CH2 Tracking Parallel Mode Background connection Tracking parallel operation doubles the current capacity of the power supply series by internally connecting CH1 and CH2 in parallel and combining the output to ...

Страница 17: ...nt knob to set the output voltage and current The CH2 output control is disabled By default the Voltage and Current knob work in the coarse mode To activate the fine mode press the knob and turn on the FINE LED 6 For the output level and CV CC status refer to the CH1 meter and indicator Voltage level The CH1 meter reading shows the output voltage In the above case 20 0V Current level Double the am...

Страница 18: ...he panel settings are modified the LED turns off Note When the setting is stored the output automatically turns off 4 2 Recall Setup Background The front panel settings can be recalled from one of the four internal memories Programming contents The following list shows the programming setting contents Independent tracking series tracking parallel mode CH1 CH2 knob selection Fine coarse knob editin...

Страница 19: ... threaded TTY IDN This should return the identification information series number firmware version 5 2 Remote Connection Step Enter the remote control mode 1 Connect the USB cable to the slave port 2 The connection will be automatically established and the front panel shows USB YES message 3 The power supply also automatically enters the lock state the Lock key will be activated Exit the remote co...

Страница 20: ...ta out of range The entered value exceeds the specification Example VSET 33 should be 32V e Command not allowed The entered command is not allowed in the circumstance Example trying to set CH2 output while in the tracking mode f Undefined header The entered command does not exist or the syntax is wrong 5 5 Command List Detailed descriptions of each command starts from the next page The HELP comman...

Страница 21: ...ponse time Min 70ms Example VSET1 20 345 Sets the CH1 voltage to 20 345V for 1mV 1mA models Command VSET X Description Returns the output voltage setting Response time Min 70ms Example VSET1 Returns the CH1 voltage setting Command IOUT X Description Returns the actual output current Response time Min 70ms Example IOUT1 Returns the CH1 output current Command VOUT X Description Returns the actual ou...

Страница 22: ...tting Panel operation Refer to page 17 NR1 1 4 Memory 1 to 4 Reponses time Min 70ms Example SAV1 Stores the panel setting into memory 1 Command RCL NR1 Description Recalls a panel setting Panel operation Refer to page 17 NR1 1 4 Memory 1 to 4 Reponses time Min 70ms Example RCL1 Recalls the panel setting stored in memory 1 Command IDN Description Returns the MODEL identification Reponses time Min 3...

Страница 23: ... supply working on independent or tracking mode NR1 0 INDE 1 SER 2 PARA BEEP Boolean Sets the BEEP state on or off OUT Boolean Sets the output state on or off STATUS Returns the power supply state bit0 CH1 0 CC 1 CV bit1 CH2 0 CC 1 CV bit23 TRACK 01 INDEP 11 SER 10 PAR bit4 BEEP 0 OFF 1 ON bit6 OUT 0 OFF 1 ON IDN Returns instrument identification RCL NR0 Recall the setting data from the memory whi...

Страница 24: ... the fuse socket using a minus driver 2 Replace the fuse in the holder Fuse rating 110V T6 3A 250V 220V T3 15A 250V 6 3 Cleaning Before cleaning disconnect the AC mains To clean the power supply use a soft cloth dampened in a solution of mild detergent and water Do not spray cleaner directly onto the instrument since it may leak into the cabinet and cause damage Do not use chemicals containing ben...

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