Question 1: what does it mean temperature control

Answer:

1.       Temperature control means the fan of cooling fan control by temperature

2.       When the internal temperature is high and fan will start rotation, after temperature drop and it will stop working

3.       The internal cooling duct is right into left out

4.       Please Keep the power supply should be maintained around the convection air flow during operating

 Question 2:  how to define the input cable

Answer:

1.       Red – Wire cable

2.       Blue – Nero cable

3.       Green /yellow- group cable

Question 3: How to avoid damage to the equipment voltage overshoot

Answer:

1.       Adjust the "V.Adj" potentiometer to minimum first; for insurance purposes, should be the first "A-Adj" pre potentiometer to minimum also

2.       Please switch off when you connect the load

Note:

If the output voltage value preset to 20% or less, you should check the power overshoot voltage exceeds the allowable range or not in firstly

For example

A.  Before connecting load with the adjustable dc power supply , or pre-adjusted output voltage, or to "V-ADJ " and "A-ADJ" pre-all to minimum, the boot process is repeated several times to check whether the RANGE of the output voltage overshoot

B.  When the confirmation overshoot voltage does not exceed the maximum allowable range then It can Connected load and boot

C.  After confirm the start-up and stable then adjust to the refer voltage value you need

Question 4> Does all specification of the adjustable dc power supply with the same dimension ?

Answer:

1.       No , different specification with different dimension and different case

2.       1000W 240*68*210 3.5k

3.       2000W 253*68*268  4.5kg

4.       3000-4000W 300*78*370  8.5kg

5.       5000W-10KW 255*176*540 16.5kg

6.       For more bigger power , the dimension and weight will base on the output voltage and current

Question 5.  When the adjustable will work in constant current and constant voltage

Answer:

1.       Constant current  --- When CC indicator ON mean the power supply working under constant current and the current must be the max output and can be adjust but voltage can not adjustable

2.       Constant Voltage  ---the voltage with max output and can be adjust but the current can not adjust

Question 6.  Does the DC Power Supply support wide range input ?

Answer: 

1.       No. our dc power supply design did not support wide range input

2.       It is support input voltage as below

Single phase 110VAC+/-15%，Single phase 110VAC+/-20%，

Single phase 220VAC+/-15%，Single phase 220VAC+/-20%，

3 phase 380VAC+/-15%，3 phase 380VAC+/-20%

3 phase 415VAC+/-15%，3 phase 415VAC+/-20%

3 phase 450VAC+/-15%，3 phase 450VAC+/-20%

Question 7.  Will the adjustable power supply input voltage and price have any relationship ?

Answer: 

1.       Yes

2.       Output power ≤4000W,  we recommend use single phase voltage for input. If the adjustable dc power supply less then 4000w but request 3 phase voltage for input , the price should be add 60.00USD Per unit

3.       Output power ≥4000W,  we recommend use 3 phase voltage for input. If the adjustable dc power supply less then 4000w but request Single phase voltage for input , the price should be add 60.00USD Per unit

4.       No matter how much power output of adjustable dc power supply , if request input voltage for 110VAC , the price should be add 60.00USD Per unit

Question 8.  Does the external remote control port can design with DB9 Port ?

Answer: 

1.       Yes

2.       The external remote control port , we have DB9 Port and Terminal connection for option

Question 9.  For the external remote control Signal can control the output voltage only ?

Answer:

1.       No

2.       Base on the request of user , our external remote control Signal can control the current and voltage in separate or simultaneously

3.       We offer the 0-5vdc or 0-10vdc remote control Signal in usually

4.       Other remote control Signal can be customize according to the customer request

Question 10.  What is difference between internal and external control signal?

Answer:

1.       The internal control signals is connected internal potentiometer with corresponding voltage and current signals in main board to adjust and control the output

2.       The external control signal is supplied by two external 0-5V analog signal corresponding to the main board voltage and current signals to adjust and control the output

Question 11.  How to connection for the remote control terminal/ DB9 Port?

Answer:

1.       External (0 ~ 5) V analog voltage regulating signal, which common terminal and the negative output terminal is in communication with the interior

2.       Use should pay attention to "common ground" of interference and potential matching problems, you should use isolated floating of (0 ~ 5) V analog voltage signal driving source.

Question 12. Does the adjustable power supply has fuse protection inside?

Answer:

1.       Yes

2.       When Input current too higher the fuse will blowout but it is not affect the protection for output of over current