Voltage & Current Limit Settings - Chroma 62000L Series User Manual

which has an IEEE-488 port.
4. Power-Line Voltage Setting: There are 115V & 230V options.
5. Information: This power supply conforms to CE requirements, with a maximum of 400VA
consumption. As the note indicates the power supply requires the correct rated power line
voltage and specified power line fuse.
6. Warning Indication: If there is something wrong with the unit, please ask trained
personnel for assistance. To maintain fire protection, use the correct specified line fuse.
7. Security Lock Port: This port is used to insert a security lock that prevents the unit from
being stolen or moved.
8. Serial Number: The number is the identification of the unit. If repairs are needed please
supply this number and the condition of the units to your local distributor or the factory via
the email address info@chromaate.com.
9. Fuse Holder: If the fuse is broken, please use the correctly rated one to replace it.
10. Power Line Inlet: This input is for power line voltages only. Before powering the unit on,
please check the voltage setting 115V/230V in order to make sure it meets your local
requirements.
2.4.3 Voltage & Current Limit Settings
The CV Limit refers to a required setting condition when outputting a constant voltage in need.
The CC Limit refers to a required setting condition when outputting a constant current in need.
The concept of the CV/CC limit setting is not the same as the Vrange's at the section 3.10.5
since the limit depends on the relationships between the interactive factors of voltage setting,
< ����_����������, the power supply will be in the CV mode, and its voltage will
CV_Limit
resistance (RLoad), and rated/non-rated current. For example:
RLoad
1. When
≥ CC_Limit, the power supply will be in the CC mode, and its current will
CV_Limit
output constantly. The output current is in an inversed ratio with the RLoad.
RLoad
2. When
output constantly. The output voltage is in a direct ratio with the RLoad, and it will stop
rising when the output voltage is equal to the setting value of the CV Limit, however, if the
RLoad increases, the power supply will turn to the CV mode to output.
Besides this, there is something you should know below.
If adjusting a CV limit under the Output ON, please make sure whether this supply is in the CV
mode since the knob rotation in the CV meter mode will trig the CV limit setting mode
simultaneously, and the values on the both displays are the same. In this case, if the same
condition exists in the CC mode, once the RLoad changes, it might burn out your DUT. So in
the CC mode, before the RLoad changes, you have to press the limit button once, and adjust
the CV limit value to protect your DUT.
If adjusting a CC limit under the Output ON, please make sure whether this supply is in the
CC mode since the knob rotation in the CC meter mode will trig the CC limit setting mode
simultaneously, and the values on the both displays are the same. In this case, if the same
condition exists in the CV mode, once the RLoad changes, it might burn out your DUT. So in
the CV mode, before the RLoad changes, you have to press the limit button once, and adjust
the CC limit value to protect your DUT.
To set the voltage and current limit values through the front panel, please follow the
procedures below.
1. Press the button to display the default values.
Limit
Preliminary Check
2-5