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UDP6720 Series Digital Control Power Supply 

User’s Manual 

 

16 

Remote Sense Compensation Setup 

Before use Remote Sense compensation function, take off short connect terminal on the Remote Sense compensation 
terminal, connect load voltage positive terminal to compensation terminal S+ and load voltage negative terminal connect 
to compensation terminal S-. And then enable power output to turn on Remote Sense compensation function. That is, 
the output voltage of the DC power supply is the voltage of the load terminal. 
Notice: Remote Sense compensation voltage should less than 0.6V. 

                                                                             

 

CV/CC Operating Mode of Power Supply 

Power supply can automatic transfer constant voltage/current function. Power supply can ongoing switch the constant 
voltage/current function dependends on load fluctuation. 
If the current load is on the constant voltage mode, power supply provide a controlled output and voltage. As the load 
resistance value decreases, the output voltage remains constant until the output current increases to greater than the 
preset current value, which it will convert operating mode. If the power supply turn into constant current output, the 
output voltage will decrease proportionally according to resistance value of the load. When the current value less than 
the set value, power supply will back to the constant voltage mode.

 

 

 

Troubleshooting 

Power supply is no output 

1

 

Check the set value of voltage and current is zero or not. If it is, reset the voltage and crrent value. 

2

 

OUTPUT indicator light is light on or not. If it is, push OUTPUT key to enable the output function. 

3

 

Check OVP

OCP

OTP function is activated or not. If it is, reset the value of OVP, OCP and wait the power supply 

remain stable to turn the output function. 

4

 

If Remote Sense compensation function has been enabled, check the line loss of output cable is excced thelimit 
value or not. If it is, replace the output cable or decrease the output current, and then try to enable the power 
supply again.

 

 
The keyboard is not work   

Check Lock indicator light is light on or not. If it is, please refer to Lock section to reset again. 

 

Summary of Contents for UDP6700-DC

Page 1: ...UDP6720 Series Digital Control Power Supply User s Manual...

Page 2: ...cords accessories and fuses etc are not included in this warranty If the product is proved to be defective within the warranty period UNI T reserves the rights to either repair the defective product...

Page 3: ...whether UNI T and its distributors are informed of any possible indirect special occasional or inevitable damage in advance they assume no responsibility for such damage Safety Information Warning Ca...

Page 4: ...ive atmosphere Do not use the instrument in flammable and explosive gas steam or dusty environment The use of any electronic equipment in such an environment is a risk to personal safety Safety Mark G...

Page 5: ...0 preset voltage and current output Support List Mode Time Function and Delayer Mode Basic Performance UDP6721 UDP6721 digital control power supply with widest voltage and current range it can applied...

Page 6: ...0 01 5mV Current 0 01 3mA 0 01 5mA Power Supply Regulation Voltage 0 01 3mV 0 01 5mV Current 0 1 3mA 0 1 5mA Programming Accuracy Voltage 0 05 10mV 0 05 10mV Current 0 2 2mA 0 3 5mA Read back Accuracy...

Page 7: ...instrument 1 The model is subject to the actual order 3C power line 1 250V 3 15A spare fuse UDP6720 1 250V 5A spare fuse UDP6721 1 User s Manual Upper computer software 1 Electronic file download fro...

Page 8: ...ironment Environmental Requirements Temperature 0 45 Humidity 20 80 non condensation Storage temperature 20 70 Altitude 2000 meter Pollution degree 2 Explanation In order to guarantee the accurancy of...

Page 9: ...key to set voltage value 2 Push or to select the specific numeric field 3 Rotating to enter the definited voltage parameter 1 2 3 Current Setup 1 Push key to set current value 2 Push or to select the...

Page 10: ...when OUTPUT function is disable C V C C indicator light will also be off Keyboard Lock Lock keyboard function is prevent unauthorized worker or operating personnel form making accident operation To av...

Page 11: ...parameters 3 Push or to enable OVP function 4 When the OVP function set successfully mark will shown beside OVP parameters 1 2 3 OCP Function 1 Long pushk key to set OVP function 2 Push or to select...

Page 12: ...tion is enable keyboard sound is also turn on when the buzzer function is disable keuboard sound will be silent Buzzer status will shown on the top screen 3 Push to exit the setup page 3 Brightness Se...

Page 13: ...up Voltage Current Setup Set the specific output voltage current point and select memory key M1 M3 push it to save the current setting When user need to call the stored output voltage current enter th...

Page 14: ...ymbol will shown on the top screen when output is finished 5 Push to exit the setup page Notice When output function is operating power supply should remain enable status That is should keep operating...

Page 15: ...Use left right arrow key to select the IO Information option 3 RS232 configuration information will shown on the right side of the screen About 1 Push to enter the setup interface 2 Push or to select...

Page 16: ...oltage remains constant until the output current increases to greater than the preset current value which it will convert operating mode If the power supply turn into constant current output the outpu...

Page 17: ...e the remote controlling application program 5 Click Euqipments List and double click the power supply symbol of UDP6720 or UDP6721 to enter the remote communication interface Remote Control Interface...

Page 18: ...r mode It can be circular switch Notice a List delayer mode and channel output function can t use at the same time it can only choose either or b When List mode status is pause delayer mode can t set...

Page 19: ...ot be adjust pause only shown when indicator is off and only shown on interface The Curve Figure of Count Parameter This curve figure can direct present the setting parameter of list mode Count Config...

Page 20: ...sue it can not set Stop presents power supply is not output at the current Run presents power supply is operating Pause presents power supply is paused Notice In pause and run mode interface can not b...

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