4.2 Main Interface
4.2.1 Main interface
The main interface is used to display the main parameters, including: input voltage, output
voltage setting, output constant current setting, real-time voltage output, current output, power
output, output mode, working status, lock status, USB-A mode, preset group information and
device temperature.
The information of the main interface is shown in Figure 4.2.1:
Figure 4.2.1 Main interface
①Read back voltage of input, which is power supply voltage, the unit is V.
②Output voltage setting, 00.00~30.00V, resolution 0.01V, unit V.
③Output constant current setting, 0.000~5.000A, resolution 0.001A, unit A.
④Output mode, including OFF mode, constant voltage output mode CV, constant current output
mode CC, in CV mode, the brightness of output LED automatically changes with the voltage,
and CC mode automatically changes with the current.
⑤USB-A mode, including host mode USBH and slave mode USBD. In host mode, it can output
5V/1A , which can supply power to 5V devices, such as a USB mouse; in slave mode, it is
used for communication with the PC and firmware upgrading.。
⑥Working state, including seven kinds: normal state NM, overvoltage protection OVP,
overcurrent protection OCP, overpower protection OPP, overheat protection OTP, reverse
connection protection REP(can be set through menu items), undervoltage protection UVP.
When it detects other states than the normal state, the device automatically turns off the output
and alarms with a buzzer, and it is forbidden to turn on the output in the UVP state.
⑦The preset output group currently used, the device supports 10 preset groups (0~9), P[0]
represents preset group 0, each preset group includes output voltage setting, output constant
current setting, overvoltage protection setting, overcurrent protection setting.
⑧Panel lock state, gray means not locked, it turns orange after locking and operation is invalid,
it is automatically locked after connecting to the PC, and can’t be unlocked through panel.
⑨Device temperature, unit: Celsius (°C).
⑩Device output power, real-time display of the power value of the device, unit: watt (W).
⑪Device output current, real-time display the output current value, unit: ampere (A).
⑫Device output voltage, real-time display the output voltage value, unit: Volt (V).
Note: ① When disconnecting the PC, you can lock and unlock by long pressing the middle button ■; after
connecting to the PC, the middle button is invalid and cannot be unlocked through the control panel.
② When communicating with the PC or upgrading the firmware, please set the USB-A interface to slave
mode(USBD) first, then use the A-A USB cable to connect PC and DP100.
